RT 560 RT 820 - Wacker Neuson
Transcription
RT 560 RT 820 - Wacker Neuson
www.wackergroup.com 0117935 005 0206 en Roller RT 560 RT 820 REPAIR MANUAL 0 1 1 7 9 3 5 Foreword This manual covers machines with Item Number: 0009000, 0009001, 0009002, 0009003 Operating / Parts Information You must be familiar with the operation of this machine before you attempt to troubleshoot or repair it. Basic operating and maintenance procedures are described in the Operator’s Manual supplied with the machine. Keep a copy of the Operator’s Manual with the machine at all times. Use the separate Parts Book supplied with the machine to order replacement parts. If you are missing either of the documents, please contact Wacker Corporation to order a replacement. Damage caused by misuse or neglect of the unit should be brought to the attention of the operator to prevent similar occurrences from happening in the future. This manual provides information and procedures to safely repair and maintain the above Wacker model(s). For your own safety and protection from injury, carefully read, understand, and observe all instructions described in this manual. THE INFORMATION CONTAINED IN THIS MANUAL IS BASED ON MACHINES MANUFACTURED UP TO THE TIME OF PUBLICATION. WACKER CORPORATION RESERVES THE RIGHT TO CHANGE ANY PORTION OF THIS INFORMATION WITHOUT NOTICE. wc_tx000471gb.fm i Foreword WARNING CALIFORNIA Proposition 65 Warning: Engine exhaust, some of its constituents, and certain vehicle components, contain or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Laws Pertaining to Spark Arresters Notice: State Health Safety Codes and Public Resources Codes specify that in certain locations spark arresters be used on internal combustion engines that use hydrocarbon fuels. A spark arrester is a device designed to prevent accidental discharge of sparks or flames from the engine exhaust. Spark arresters are qualified and rated by the United States Forest Service for this purpose. In order to comply with local laws regarding spark arresters, consult the engine distributor or the local Health and Safety Administrator. All rights, especially copying and distribution rights, are reserved. Copyright 2006 by Wacker Corporation No part of this publication may be reproduced in any form or by any means, electronic or mechanical, including photocopying, without express written permission from Wacker Corporation. Any type of reproduction or distribution not authorized by Wacker Corporation represents an infringement of valid copyrights, and violators will be prosecuted. We expressly reserve the right to make technical modifications, even without due notice, which aim at improving our machines or their safety standards. wc_tx000471gb.fm ii RT 560 / RT 820 Repair 1. Safety Information 1.1 1.2 1.3 1.4 1.5 2. 6 Operating Safety .................................................................................. 6 Operator Safety while using Internal Combustion Engines .................. 9 Service Safety ...................................................................................... 9 Label Locations .................................................................................. 11 Warning and Informational Labels ...................................................... 13 Technical Data 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3. Table of Contents 17 Revision Levels—Older Machines ..................................................... 17 Engine—Older Machines ................................................................... 17 Roller—Older Machines .................................................................... 18 Lubrication—Older Machines ............................................................. 18 Revision Levels—Newer Machines .................................................... 19 Engine—Newer Machines .................................................................. 19 Roller—Newer Machines .................................................................... 20 Lubrication—Newer Machines ........................................................... 20 Sound and Vibration Measurements .................................................. 21 Maintenance 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 22 Periodic Maintenance Schedule ......................................................... 22 Transporting Machine ......................................................................... 23 Lifting Machine ................................................................................... 23 Battery ................................................................................................ 24 Air Cleaner ......................................................................................... 26 Engine Oil System .............................................................................. 27 Engine Oil ........................................................................................... 28 Valve Clearances ............................................................................... 28 Engine Fuel Delivery System Maintenance ........................................ 29 Fuel Filter ........................................................................................... 29 Priming the Fuel System .................................................................... 30 Articulated Steering Joint & Steering Cylinder ................................... 30 Drive Gearcase .................................................................................. 31 Exciter Lubrication .............................................................................. 32 Cleaning Engine Cooling Fins ............................................................ 33 Scrapers ............................................................................................. 34 Shockmounts ...................................................................................... 34 wc_br0117935en_004TOC.fm 1 Table of Contents 3.18 3.19 3.20 3.21 3.22 3.23 3.24 3.25 3.26 3.27 3.28 3.29 3.30 3.31 3.32 3.33 3.34 3.35 3.36 3.37 4. RT 560 / RT 820 Repair Cleaning CombiControl Transmitter ....................................................35 Hydraulic Oil Requirements .................................................................36 Hydraulic Fluid Level ...........................................................................36 Changing Hydraulic Oil & Filter ...........................................................37 Changing Drums .................................................................................38 Storage ................................................................................................39 Jobsite Storage ...................................................................................39 Hydrauic Schematic ............................................................................40 Hydraulic Schematic Components ......................................................41 Hydraulic Diagram ...............................................................................42 Hydraulic Diagram Components .........................................................43 Electrical Schematic (Main) .................................................................44 Electrical Schematic (Main) Components ...........................................44 Electrical Diagram (Main) ....................................................................46 Electrical Diagram (Main) Components ...............................................47 Electrical Schematic (Engine) .............................................................48 Electrical Schematic (Engine) .............................................................49 Electrical Diagram (Engine) .................................................................50 Electrical Diagram (Engine) .................................................................51 Troubleshooting ...................................................................................52 Hydraulic System 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.17 4.18 54 Hydraulic Flow Diagram—Older Machines .........................................54 Flow Diagram Components—Older Machines ....................................55 Flow Diagram—Newer Machines .......................................................56 Flow Diagram Components—Newer Machines ..................................57 Hydraulic System ................................................................................58 Hydraulic Hose Connections—Older Machines ..................................60 Hydraulic Hose Connection Components—Older Machines ...............61 Control Valve Block .............................................................................64 Control Valve Block Components .......................................................65 High-Speed Travel Circuit Description ................................................67 High-Speed Travel Circuit ...................................................................68 High-Speed Travel Circuit Components ..............................................69 Low-Speed Travel Circuit ....................................................................70 Low-Speed Travel Circuit Components ...............................................71 Low-Speed Travel Circuit Description .................................................72 Exciter Circuit Description ...................................................................73 Exciter Circuit ......................................................................................74 Exciter Circuit Components .................................................................75 wc_br0117935en_004TOC.fm 2 RT 560 / RT 820 Repair 4.19 4.20 4.21 4.22 4.23 4.24 4.25 4.26 4.27 4.28 4.29 5. Table of Contents Steering Circuit Description ................................................................ 76 Steering Circuit ................................................................................... 77 Hydraulic System Cleanliness ............................................................ 78 Hydraulic Oil Requirements ................................................................ 78 Checking Hydraulic Pressures ........................................................... 79 Checking Drive Circuit ........................................................................ 80 Checking Steering Circuit ................................................................... 81 Checking Vibration Circuit .................................................................. 82 Testing Drive & Exciter Circuit Relief Valves ...................................... 82 System Pressures .............................................................................. 83 Troubleshooting Hydraulic System ..................................................... 84 Disassembly/Reassembly—Older Machines 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.11 5.12 5.13 5.14 5.15 5.16 5.17 5.18 5.19 5.20 5.21 5.22 5.23 5.24 5.25 5.26 5.27 85 Tools ................................................................................................... 85 Ordering Parts .................................................................................... 85 Reference Numbers ( ) ....................................................................... 85 Weight Block ...................................................................................... 85 Drum Assembly Exploded View ......................................................... 86 Drum Assembly Components ............................................................. 87 Drums ................................................................................................. 88 Drum Support Cover .......................................................................... 90 Drive Bearings and Seals ................................................................... 92 Drive Housing ..................................................................................... 94 Changing Oil ....................................................................................... 96 Drive Housing Assembly ................................................................. 98 Drive Housing Components ............................................................... 99 Brake ................................................................................................ 100 Servicing Brake ................................................................................ 102 Drive Motor ....................................................................................... 104 Drive Housing Components ............................................................. 106 Exciter Assembly Exploded View ..................................................... 110 Exciter Assembly Components ........................................................ 111 Introduction ....................................................................................... 112 Oil Requirements .............................................................................. 112 Exciter .............................................................................................. 113 Exciter Exploded View ...................................................................... 114 Exciter Disassembly ......................................................................... 115 Exciter Assembly .............................................................................. 117 Exciter Motor, Coupling, & Pinion Gear ............................................ 120 Exciter Motor, Coupling, & Pinion Gear Removal ............................ 121 wc_br0117935en_004TOC.fm 3 Table of Contents 5.28 5.29 5.30 5.31 5.32 5.33 5.34 5.35 5.36 5.37 5.38 5.39 5.40 5.41 5.42 5.43 5.44 5.45 5.46 5.47 5.48 5.49 5.50 5.51 5.52 5.53 6. RT 560 / RT 820 Repair Exciter Motor, Coupling, & Pinion Gear Installation ..........................122 Exciter Motor .....................................................................................124 Shockmounts .....................................................................................124 Shockmount Assembly .................................................................... 125 Replacing Outer Shockmounts ..........................................................126 Replacing Inner Shockmounts ..........................................................128 Hydraulic Hose Clamps .....................................................................130 Hydraulic Hose Clamp Components .................................................131 Drum Supports ..................................................................................131 Drum Support Exploded View ...........................................................132 Replacing Drum Supports .................................................................133 Articulated Joint and Steering Cylinder Exploded View ....................134 Articulated Joint and Steering Cylinder Components ........................135 Replacing Articulated Joint ................................................................136 Steering Cylinder ...............................................................................138 Drive Pump and Coupling Assembly Exploded View ........................140 Drive Pump and Coupling Assembly Components ...........................141 Replacing Drive Pump and Coupling ................................................142 Removing Engine Cover ...................................................................144 Removing Engine ..............................................................................146 Installing Engine ................................................................................148 Replacing Muffler ..............................................................................150 Replacing Engine Air Cleaner ...........................................................150 Engine Relays ...................................................................................151 Miscellaneous Engine Components ..................................................152 Engine Wiring ....................................................................................154 Disassembly/Reassembly—Newer Machines 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 6.10 6.11 6.12 157 Tools ..................................................................................................157 Ordering Parts ...................................................................................157 Reference Numbers ( ) ......................................................................157 Weight Block .....................................................................................157 Drum Support Exploded View ...........................................................158 Drum Support Components ...............................................................159 Identifying Drum Supports .................................................................160 Removing Drums ...............................................................................161 Installing Drums .................................................................................162 Opening Drum ...................................................................................162 Closing Drum .....................................................................................163 Disassembling Drive Hub ..................................................................164 wc_br0117935en_004TOC.fm 4 RT 560 / RT 820 Repair 6.13 6.14 6.15 6.16 6.17 6.18 6.19 6.20 6.21 6.22 7. Table of Contents Reassembling Drive Hub .................................................................. 166 Disassembling Slave Hub ................................................................ 168 Reassembling Slave Hub ................................................................. 170 Rebuilding Brake .............................................................................. 172 Exciter Exploded View ...................................................................... 174 Exciter Parts List .............................................................................. 175 Disassembling Exciter ...................................................................... 176 Reassembling Exciter ....................................................................... 178 Removing Drum Support .................................................................. 180 Installing Drum Support .................................................................... 182 CombiControl/Electrical System 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 184 CombiControl Features .................................................................... 184 CombiControl Operation ................................................................... 184 Decoder Module ............................................................................... 186 Setting Control Channels ................................................................. 186 CombiControl Control Cable ............................................................ 188 CombiControl Receiving Eye Module ............................................... 190 CombiControl Wiring ........................................................................ 192 CombiControl Transmitter Module ................................................... 193 Wiring Schematic—Decoder Module, Control Panel & Engine ........ 194 wc_br0117935en_004TOC.fm 5 Safety Information 1. RT 560 / RT 820 Safety Information This manual contains DANGER, WARNING, CAUTION, and NOTE callouts which must be followed to reduce the possibility of personal injury, damage to the equipment, or improper service. This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. DANGER WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. WARNING CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. CAUTION CAUTION: Used without the safety alert symbol, CAUTION indicates a potentially hazardous situation which, if not avoided, may result in property damage. Note: Contains additional information important to a procedure. 1.1 Operating Safety WARNING wc_si000157gb.fm Familiarity and proper training are required for the safe operation of equipment. Equipment operated improperly or by untrained personnel can be dangerous. Read the operating instructions contained in both this manual and the engine manual and familiarize yourself with the location and proper use of all controls. Inexperienced operators should receive instruction from someone familiar with the equipment before being allowed to operate the machine. 6 RT 560 / RT 820 wc_si000157gb.fm Safety Information 1.1.1 ALWAYS operate machine with all safety devices and guards in place and in working order. DO NOT modify or defeat safety devices. DO NOT operate machine if any safety devices or guards are missing or inoperative. 1.1.2 ALWAYS disengage and stow the locking bar for the articulated steering joint before operating the machine. The machine cannot be steered when the locking bar is engaged. 1.1.3 ALWAYS check that all controls are functioning properly immediately after start-up! DO NOT operate machine unless all controls operate correctly. 1.1.4 ALWAYS remain aware of changing positions and the movement of other equipment and personnel on the job site. 1.1.5 ALWAYS remain in visual contact with machine at all times while operating controls. 1.1.6 ALWAYS remain aware of changing surface conditions and use extra care when operating over uneven ground, on hills, or over soft or coarse material. The machine could shift or slide unexpectedly. 1.1.7 ALWAYS use caution when operating near the edges of pits, trenches or platforms. Check to be sure that the ground surface is stable enough to support the weight of the machine with the operator and that there is no danger of the roller sliding, falling, or tipping. 1.1.8 ALWAYS position yourself safely when operating machine in reverse or on hills. Leave enough space between yourself and the machine so you will not be placed in a hazardous position should the machine slide or tip. 1.1.9 ALWAYS use the neck strap for the SmartControl™ Transmitter (control box) provided by WACKER. This neck strap is designed to break away so that the operator will not be injured should the machine slide, tip, or fall. 1.1.10 ALWAYS wear protective clothing appropriate to the job site when operating equipment. 1.1.11 ALWAYS remain aware of moving parts and keep hands, feet, and loose clothing away from the moving parts of the equipment. 1.1.12 ALWAYS read, understand, and follow procedures in the Operator’s Manual before attempting to operate the equipment. 1.1.13 ALWAYS store the equipment properly when it is not being used. Equipment should be stored in a clean, dry location out of the reach of children. 1.1.14 NEVER allow anyone to operate this equipment without proper training. People operating this equipment must be familiar with the risks and hazards associated with it. 7 Safety Information wc_si000157gb.fm RT 560 / RT 820 1.1.15 NEVER touch the engine or muffler while the engine is on or immediately after it has been turned off. These areas get hot and may cause burns. 1.1.16 NEVER use accessories or attachments that are not recommended by Wacker. Damage to equipment and injury to the user may result. 1.1.17 NEVER leave machine running unattended. 1.1.18 NEVER start a defective unit in need of service or repair. 1.1.19 NEVER operate the machine with the fuel cap loose or missing. 8 RT 560 / RT 820 1.2 Operator Safety while using Internal Combustion Engines DANGER 1.3 Safety Information Internal combustion engines present special hazards during operation and fueling. Read and follow the warning instructions in the engine owner’s manual and the safety guidelines below. Failure to follow the warnings and safety guidelines could result in severe injury or death. 1.2.1 DO NOT run the machine indoors or in an enclosed area such as a deep trench unless adequate ventilation, through such items as exhaust fans or hoses, is provided. Exhaust gas from the engine contains poisonous carbon monoxide gas; exposure to carbon monoxide can cause loss of consciousness and may lead to death. 1.2.2 DO NOT smoke while operating the machine. 1.2.3 DO NOT smoke when refueling the engine. 1.2.4 DO NOT refuel a hot or running engine. 1.2.5 DO NOT refuel the engine near an open flame. 1.2.6 DO NOT spill fuel when refueling the engine. 1.2.7 DO NOT run the engine near open flames. 1.2.8 ALWAYS refill the fuel tank in a well-ventilated area. 1.2.9 ALWAYS replace the fuel tank cap after refueling. 1.2.10 ALWAYS check the fuel lines and the fuel tank for leaks and cracks before starting the engine. Do not run the machine if fuel leaks are present or the fuel lines are loose. 1.2.11 ALWAYS keep the area around a hot exhaust pipe free of debris to reduce the chance of an accidental fire. Service Safety Poorly maintained equipment can become a safety hazard! In order for the equipment to operate safely and properly over a long period of time, periodic maintenance and occasional repairs are necessary. WARNING wc_si000157gb.fm 1.3.1 Some service procedures require that the machine’s battery be disconnected. To reduce the risk of personal injury, read and understand the service procedures before performing any service to the machine. 1.3.2 ALWAYS replace the safety devices and guards after repairs and maintenance. 1.3.3 ALWAYS turn engine off before performing maintenance or making repairs. 9 Safety Information wc_si000157gb.fm RT 560 / RT 820 1.3.4 ALWAYS secure the articulated steering joint using the locking bar before lifting, jacking, and servicing the machine. Machine halves could swing together unexpectedly and cause a serious injury. 1.3.5 ALWAYS replace missing and hard-to-read labels. See Parts Manual for ordering information. 1.3.6 ALWAYS make sure slings, chains, hooks, ramps, jacks and other types of lifting devices are attached securely and have enough weightbearing capacity to lift or hold the machine safely. Always remain aware of the location of other people around when lifting the machine. 1.3.7 ALWAYS keep the area around the muffler free of debris such as leaves, paper, cartons, etc. A hot muffler could ignite the debris and start a fire. 1.3.8 ALWAYS replace worn or damaged components with spare parts designed and recommended by Wacker Corporation. 1.3.9 ALWAYS keep the machine clean and labels legible. Replace all missing and hard-to-read labels. Labels provide important operating instructions and warn of dangers and hazards. 1.3.10 DO NOT open hydraulic lines or loosen hydraulic connections while engine is running! Hydraulic fluid under pressure can penetrate the skin, cause burns, blind, or create other potentially dangerous hazards. Set all controls in neutral and turn engine off before loosening hydraulic lines. 1.3.11 DO NOT attempt to clean or service the machine while it is running. Rotating parts can cause severe injury. 1.3.12 DO NOT use gasoline or other types of fuels or flammable solvents to clean parts, especially in enclosed areas. Fumes from fuels and solvents can become explosive. 1.3.13 DO NOT modify the equipment without the express written approval of the manufacturer. 10 RT 560 / RT 820 1.4 wc_si000157gb.fm Safety Information Label Locations 11 Safety Information wc_si000157gb.fm RT 560 / RT 820 12 RT 560 / RT 820 1.5 Safety Information Warning and Informational Labels Wacker machines use international pictorial labels where needed. These labels are described below: Label Meaning DANGER! Engines emit carbon monoxide; operate only in well-ventilated area. Read the Operator’s Manual. No sparks, flames, or burning objects near the machine. Shut off the engine before refueling. WARNING! Hot surface! WARNING! Hot surface! WARNING! To prevent hearing loss, wear hearing protection when operating this machine. WARNING! Pinch point wc_si000157gb.fm 13 Safety Information Label RT 560 / RT 820 Meaning Hydraulic oil reservoir fill tube CAUTION! Use only clean, filtered diesel fuel. WARNING! Read and understand the supplied Operator’s Manual before operating this machine. Failure to do so increases the risk of injury to yourself or others. CAUTION! Engine oil may enter the cylinders if machine tips over, causing possible engine damage. WARNING! Machine may receive stray signals if operated near solid objects. CAUTION! Use only breakaway neck strap provided by Wacker to avoid possible operator injury. wc_si000157gb.fm 14 RT 560 / RT 820 Label Safety Information Meaning Operator’s Manual must be stored on machine. Replacement Operator’s Manual can be ordered through your local Wacker distributor. CAUTION! Engine oil pressure is low! Stop the engine and check the oil level. CAUTION! Low voltage! Stop the engine and check the charging system. Control with cable Control with infrared Charge infrared battery Glow plug. Press to pre-heat intake manifold before starting in cold weather. Tie-down point CAUTION! Lifting point wc_si000157gb.fm 15 Safety Information Label RT 560 / RT 820 Meaning Torque battery hold-down nuts to 3.5 Nm (2.5 ft.lbs.) max. A nameplate listing the model number, item number, revision number, and serial number is attached to each unit. Please record the information found on this plate so it will be available should the nameplate become lost or damaged. When ordering parts or requesting service information, you will always be asked to specify the model number, item number, revision number, and serial number of the unit. This machine may be covered by one or more patents. Guaranteed sound power level in dB(A) wc_si000157gb.fm 16 RT 560 / RT 820 2. Technical Data Technical Data 2.1 2.2 Revision Levels—Older Machines Item Number Revision 9000 120 & lower 9001 122 & lower 9002 123 & lower 9003 124 & lower Engine—Older Machines Item No. RT820 0009002 0009003 RT560 0009000 0009001 Engine Engine Type 2 cylinder, 4 cycle, air cooled, diesel engine Engine Make Lombardini Engine Model 12LD475-2 Rated Power kW (Hp) 15.6 (20.9) Alternator Amp / V 12 / 16.5 @ 2600 rpm Engine Speed - full load Valve Clearance (cold) intake / exhaust: Air Cleaner Battery Fuel Fuel Tank Capacity Fuel Consumption wc_td000156gb.fm rpm 2600 ± 100 mm (in.) 0.20 (0.008) Dry pleated paper elements type 12V - Sealed - 800 cold starting amps V / size No. 2 Diesel type l (gal.) 21 (5.6) l (gal.)/hr. 4.2 (1.1) 17 Technical Data 2.3 RT 560 / RT 820 Roller—Older Machines Item No: RT560 0009000 0009001 RT820 0009002 0009003 Roller Overall Dimensions Operating Weight Area Capacity Inside Turning Radius mm (in.) kg (lb.) 2030 x 560 x 1220 (80 x 22 x 48) 2030 x 820 x 1220 (80 x 32 x 48) 1283 (2830) 1345 (2960) 690 (7500) 1016 (10900) 1.6 (63) 1.5 (58) m² (ft²) / hr. m (in.) Low Speed m (ft.)/min. 21 (68) High Speed m (ft.)/min. 136 (41) Vibration Frequency 40 (2400) Hz (vpm) Gradeability with Vibration % 50 Gradeability without Vibration % 55 2.4 Lubrication—Older Machines Item No: RT820 0009002 0009003 RT560 0009000 0009001 Lubrication Engine Crankcase type l (qt.) SAE 10W30 Class CD rated 2.5 (2.5) Hydraulic System type l (gal) Premium grade, Anti-wear hydraulic fluid SAE 10W30 40 (10.5) Exciter type ml (oz.) SAE 10W30 950 (32) Drum Drive Gearcase type ml (oz.) SAE 10W30 240 (8.0) Articulated Joint type qty. Shell Alvania No. 2 Grease As Required Steering Cylinder type qty. Shell Alvania No. 2 Grease As Required wc_td000156gb.fm 18 RT 560 / RT 820 2.5 2.6 Technical Data Revision Levels—Newer Machines Item Number Revision 9000 121 & higher 9001 123 & higher 9002 124 & higher 9003 121 & higher Engine—Newer Machines Item No. RT820 0009002 0009003 RT560 0009000 0009001 Engine Engine Type 2 cylinder, 4 cycle, air cooled, diesel engine Engine Make Lombardini Engine Model 12LD475-2 Rated Power kW (Hp) 15.6 (20.9) Alternator Amp / V 12 / 16.5 @ 2600 rpm Engine Speed - full load Valve Clearance (cold) intake / exhaust: Air Cleaner Battery Fuel Fuel Tank Capacity Fuel Consumption wc_td000156gb.fm rpm 2600 ± 100 mm (in.) 0.20 (0.008) Dry pleated paper elements type 12V - Sealed - 800 cold starting amps V / size No. 2 Diesel type l (gal.) 21 (5.6) l (gal.)/hr. 4.2 (1.1) 19 Technical Data 2.7 RT 560 / RT 820 Roller—Newer Machines RT820 0009002 0009003 RT560 0009000 0009001 Item No: Roller Overall Dimensions Operating Weight Area Capacity Inside Turning Radius mm (in.) kg (lb.) 2030 x 560 x 1220 (80 x 22 x 48) 2030 x 820 x 1220 (80 x 32 x 48) 1346 (2976) 1408 (3106) 690 (7500) 1016 (10900) 1.6 (63) 1.5 (58) m² (ft²) / hr. m (in.) Low Speed m (ft.)/min. 21 (68) High Speed m (ft.)/min. 136 (41) Vibration Frequency 40 (2400) Hz (vpm) Gradeability with Vibration % 50 Gradeability without Vibration % 55 2.8 Lubrication—Newer Machines RT820 0009002 0009003 RT560 0009000 0009001 Item No: Lubrication Engine crankcase type l (qt.) SAE 10W30 Class CD rated 2.5 (2.5) Hydraulic system type l (gal) Premium grade, Anti-wear hydraulic fluid SAE 10W30 40 (10.5) Exciter type ml (oz.) SAE 10W30 950 (32) Drum drive gearcase type ml (oz.) SAE 10W30 370 (12.5) Articulated joint type qty. Shell Alvania No. 2 Grease As Required Steering cylinder type qty. Shell Alvania No. 2 Grease As Required wc_td000156gb.fm 20 RT 560 / RT 820 2.9 Technical Data Sound and Vibration Measurements According to Appendix 1, paragraph 1.7.4.f of the EG-Machine Regulation, the requested noise levels are: The sound pressure level at operator's location (LpA) = 83 dB(A). The guaranteed sound power level (LWA) = 109 dB(A). These noise values were obtained at the operator's location according to ISO 3744 for the sound power level (LWA) and ISO 6081 for the sound pressure level (LpA). Noise levels were measured while running the machine at full speed, on crushed gravel, with vibration on. Because this machine is operated using remote control the operator is not exposed to vibration. wc_td000156gb.fm 21 Maintenance 3. RT 560 / RT 820 Maintenance 3.1 Periodic Maintenance Schedule The chart below lists basic engine maintenance. Refer to the engine manufacturer’s Operation Manual for additional information on engine maintenance. Lombardini Engine Daily before starting Check engine oil. Fill to correct level. • Replace air filter if indicator light is on. • Check condition and tension on fan belt. • Every 100 hrs. Clean engine head and cylinder fins. Every 250 hrs. Every 300 hrs. Every 500 hrs. • Change oil in engine crankcase. • Replace engine oil filter. • Check and adjust fan belt. • Replace fuel filter cartridge. • Clean injectors and check injector pressure. • Replace fan belt. • Check valve clearance. • Roller Daily before starting Check hydraulic oil. Fill to correct level. • Clean control box / transmitter. • Every 100 hrs. Grease articulated joint. • Grease steering cylinder. • Grease hood hinges. • Change oil in drive gearcase. Every 500 hrs. Once A Year • Change hydraulic system return line filter. • Change hydraulic fluid. • Change exciter oil. wc_tx000482gb.fm Every 2 Years • 22 RT 560 / RT 820 3.2 Maintenance Transporting Machine See Graphic: wc_gr000484 When transporting the machine, place blocks in front of and behind each drum and use the tie down lugs (a) provided to securely fasten the machine to the trailer. Make sure that the joint locking bar (b) is engaged. 3.3 Lifting Machine See Graphic: wc_gr000484 Lock front and rear machine halves together using the joint locking bar (b) at the articulated steering joint on the machine. Use a lifting device with sufficient weight-bearing capacity. Lift machine from lifting eye (c). ALWAYS lock the articulated steering joint before lifting the machine. wc_tx000482gb.fm 23 Maintenance 3.4 RT 560 / RT 820 Battery Before servicing this machine, make sure the engine start switch is in the off “O” position and that the battery is disconnected. Attach a “DO NOT START” sign to the machine. This will notify other personnel that the unit is being serviced and will reduce the chance of someone inadvertently trying to start the unit. WARNING Explosion hazard. Batteries can emit explosive hydrogen gas. Keep all sparks and flames away from the battery. Do not short-circuit battery posts. Do not touch the machine frame or the negative terminal of the battery when working on the positive terminal. Battery fluid is poisonous and corrosive. In the event of ingestion or contact with skin or eyes seek medical attention immediately. WARNING Dispose of dead batteries in accordance with local environmental regulations. To disconnect the battery: 3.4.1 Stop the machine and shut down the engine. 3.4.2 Place all electrical switches in the OFF position. 3.4.3 Disconnect the negative battery cable from the battery. 3.4.4 Disconnect the positive battery cable from the battery. To connect the battery: 1 3.4.5 Connect the positive battery cable to the battery. 3.4.6 Connect the negative battery cable to the battery. 2 3 4 wc_gr002565 wc_tx000482gb.fm 24 RT 560 / RT 820 Maintenance The battery supplied on this machine is constructed to resist vibration and provide long service life. CAUTION DO NOT use automotive-type batteries on this machine. Automotivetype batteries are not designed to withstand the heavy vibration produced by this machine. The case on automotive-type batteries could fail, causing battery acid to leak. Inspect battery periodically. Keep battery terminals clean and connections tight. When necessary, tighten the cables and grease the cable clamps with petroleum jelly. Maintain the battery at full charge to improve cold weather starting. Dispose of dead batteries in accordance with local environmental regulations. CAUTION: Observe the following to prevent serious damage to the machine’s electrical system: wc_tx000482gb.fm • Never disconnect the battery with the machine running. • Never attempt to run the machine without a battery. • Never attempt to jump-start a machine. • In the event that the machine has a dead battery, either replace the battery with a fully charged battery or charge the battery using an appropriate battery charger. 25 Maintenance 3.5 RT 560 / RT 820 Air Cleaner See Graphic: wc_gr000473 Filter Indicator The air intake system is equipped with a filter indicator (a). The indicator is mounted to the air intake tube on the filter cannister and can be viewed by opening the front hood. Replace filter element when the indicator appears in or near the red line (b). Push in black rubber button (c) on top of indicator to reset it after replacing filter element. Check condition of air cleaner daily, before starting machine, and replace element when needed. Replacing Air Cleaner Lift front hood and open access door on right side of machine. Remove wing nut holding bottom cover (h) and remove cover. Screw off wing nut (f) to remove filter element. Clean inside of air cleaner cannister to remove dirt and dust, especially in area where rubber gasket on filter (d) seals against air intake tube. Inspect rubber washers (e) and O-ring (g). Replace if damaged. Install new filter. Tighten wing nut snugly to ensure that both the top and bottom of the filter is sealed. c `` `` ` `` ` `` `` ``` ` ` ` `` ` `` `` `` ` `` `` `` `` ` `` `` ``` `` ` ` ` ` ` ` ` ` ` `` ` ` ` ` ` ` `` ` `` ` b a wc_gr000473 wc_tx000482gb.fm 26 RT 560 / RT 820 3.6 Maintenance Engine Oil System See Graphic: wc_gr000057 & wc_gr000474 Check the engine oil level daily. Add oil as required. To check oil: Place the machine on a level surface, remove the dipstick and check that the oil level is at the top mark. Add oil through the oil filler cap (a) on top of engine, checking occasionally with dipstick; DO NOT overfill. Suggested oil grades: Use only diesel engine oil API service rating CD or equivalent. ENGINE OIL VISCOSITY GRADE - AMBIENT TEMPERATURE Ambient Temperature -25ºC -20ºC (-13ºF) (-4ºF) -15ºC (5ºF) 0ºC (32ºF) 15ºC (59ºF) 30ºC (86ºF) SAE 10W-30 SAE 15W-40, 20W-40 (Multi-grade) SAE 5W-20 wc_gr000057 wc_tx000482gb.fm 27 Maintenance 3.7 RT 560 / RT 820 Engine Oil See Graphic: wc_gr000474 Change the oil and oil filter (b) every 250 hours. On new machines, change the oil after the first 50 hours of operation. Drain the oil while the engine is still warm. 3.7.1 Remove the oil drain plug (c) to the drain oil. Note: In the interests of environmental protection, place plastic sheeting and a container under the machine to collect the liquid which drains off. Dispose of this liquid properly. 3.7.2 Install the drain plug. 3.7.3 Remove the oil filler cap (a) and fill the engine crankcase with the recommended oil. Oil Capacity: 2.5 liters (2.5 qts.) SAE15W40, CD rated 3.7.4 3.8 Install the oil filler cap. Valve Clearances See Graphic: wc_gr000476 Check and adjust the valve clearance every 500 hours. Set the clearance when the engine is cold. 3.8.1 Remove the rocker arm cover and check the gaskets for breakage. 3.8.2 Bring each cylinder piston to top dead center on the compression stroke and set the clearance. Valve clearance: 0.20 mm (0.008 in.). 3.8.3 Replace the rocker arm cover and tighten bolts to 19 Nm (14 ft.lbs.). wc_gr000476 wc_tx000482gb.fm 28 RT 560 / RT 820 3.9 Maintenance Engine Fuel Delivery System Maintenance Maintenance to the engine fuel delivery system should be performed by an experienced mechanic familiar with diesel engines. For detailed maintenance procedures on the engine fuel system, refer to the engine manual supplied with the machine at the time of shipment. 3.10 Fuel Filter See Graphic: wc_gr000477 Change the engine fuel filter every 300 hours of operation. 3.10.1 Remove the filter (a) from the engine block. 3.10.2 Install a new filter. If necessary, prime the fuel lines as described in the next section. a b c w c _ g r0 0 0 4 7 7 wc_tx000482gb.fm 29 Maintenance RT 560 / RT 820 3.11 Priming the Fuel System See Graphic: wc_gr000477 If the fuel tank has been run completely dry or drained for service, it will be necessary to manually prime the fuel system. To prime the fuel system: 3.11.1 Turn both the key switch on the machine, and the on-off switch on control box, on. This will open the fuel valve. 3.11.2 Loosen the bleed screw on the fuel filter and pump the lever on the fuel pump (b) until fuel flows freely from the bleed screw. Tighten the bleed screw. 3.11.3 Repeat this procedure for the fuel line bleed screw (c). 3.12 Articulated Steering Joint & Steering Cylinder See Graphic: wc_gr000478 Lubricate top and bottom bearing blocks (b) and cylinder knuckles (a) every 100 hours using a hand-held grease gun. Cylinder knuckles can be accessed through holes on side of machine. Use Shell Alvania No. 2 or an equivalent No. 2 general purpose grease. a b w c _ g r0 0 0 4 7 8 wc_tx000482gb.fm 30 RT 560 / RT 820 Maintenance 3.13 Drive Gearcase See Graphic: wc_gr000479 Any disassembly of the drive gearcase should be done on the opposite side of graphic wc_gr000479. CAUTION Change the oil in the drive gearcase once a year or every 500 hours of operation. To change the oil: 3.13.1 Remove drum from drivecase side of machine. On the front drum this will be on the left side, on the rear drum it is the right side. 3.13.2 Open fill plug (c) for venting and then remove drain plug (b) from bottom of drum assembly. Note: In the interests of environmental protection, place plastic sheeting and a container under the machine to collect the liquid which drains off. Dispose of this liquid properly. wc_tx000482gb.fm 3.13.3 Install drain plug and remove level plug (a) from gearcase. 3.13.4 Add SAE 10W30 oil through fill plug opening until oil flows out of level plug opening, approx. 370 ml (12.5 oz.). 3.13.5 Replace plugs and install drum. 31 Maintenance RT 560 / RT 820 3.14 Exciter Lubrication See Graphic: wc_gr000832 The exciter is a sealed unit and under normal conditions should not require any periodic maintenance; however, an oil change once every two years is recommended to ensure bearing life. Exciter maintenance should be done on the right front (a) and left rear (b) only. CAUTION Changing the exciter oil requires special tools and should be performed by an experienced mechanic. wc_tx000482gb.fm 32 RT 560 / RT 820 Maintenance 3.15 Cleaning Engine Cooling Fins See Graphic: wc_gr000480 The engine is air-cooled and depends on the cylinder cooling fins to dissipate heat. In dusty conditions the cooling fins may become clogged or covered with dust, reducing engine cooling. Remove the engine cover and inspect the engine cooling fins every 100 hours. Remove dirt build-up using a brush and diesel fuel or kerosene. Dry the engine using compressed air. Replace the inspection cover before starting the engine. wc_tx000482gb.fm 33 Maintenance RT 560 / RT 820 3.16 Scrapers See Graphic: wc_gr000481 Scrapers are provided on all four drums to prevent dirt from building up on the drum surfaces. These scrapers should be inspected and adjusted as required to remove as much dirt from the drums as possible. To adjust scraper, loosen the three screws (a) holding each scraper to the drum casting. Position the scraper as close to the drum as possible. Tighten screws and run machine to check that the scraper does not rub against the drum surface. 3.17 Shockmounts See Graphic: wc_gr000482 Inspect the drum shockmounts (a) every 300 hours for cracking, splitting or tearing. Replace shockmounts as needed. CAUTION: The shockmounts isolate the upper part of the machine from the heavy vibrations produced in the drums. Operating the machine with damaged shockmounts for an extended period of time may eventually damage other machine parts. wc_tx000482gb.fm 34 RT 560 / RT 820 Maintenance 3.18 Cleaning CombiControl Transmitter The transmitter and switches are completely sealed to keep dust and moisture out; however, contact with water should be kept to a minimum. Even a small amount of moisture can cause connections and contacts to corrode. Avoid immersing transmitter in water and do not clean using a pressure wash. To clean the transmitter, wash off using a damp cloth and allow to dry. To remove dirt and dust trapped around switches, use compressed air. Keeping the hydraulic oil clean is a vital factor affecting the service life of hydraulic components. Oil in hydraulic systems is used not only to transfer power, but also to lubricate the hydraulic components used in the system. Keeping the hydraulic system clean will help avoid costly downtime and repairs. Major sources of hydraulic system contamination include: • Particles of dirt introduced when the hydraulic system is opened for maintenance or repair • Contaminants generated by the mechanical components of the system during operation • Improper storage and handling of hydraulic oil • Use of the wrong type of hydraulic oil • Leakage in lines and fittings To minimize hydraulic oil contamination: CLEAN hydraulic connections before opening the lines. When adding oil, clean the hydraulic tank filler cap and surrounding area before removing it. AVOID opening the pumps, motors, or hose connections unless absolutely necessary. PLUG or cap all open hydraulic connections while servicing the system. CLEAN and cover the containers, funnels, and spouts used to store and transfer the hydraulic oil. CHANGE the hydraulic filters and oils at the recommended service intervals. wc_tx000482gb.fm 35 Maintenance RT 560 / RT 820 3.19 Hydraulic Oil Requirements Wacker recommends the use of a good petroleum-based, anti-wear hydraulic oil in the hydraulic system of this equipment. Good anti-wear hydraulic oils contain special additives to reduce oxidation, prevent foaming, and provide for good water separation. When selecting hydraulic oil for your machine, be sure to specify antiwear properties. Most hydraulic oil suppliers will provide assistance in finding the correct hydraulic oil for your machine. Avoid mixing different brands and grades of hydraulic oils. Most hydraulic oils are available in different viscosities. The SAE number for an oil is used strictly to identify viscosity—it does not indicate the type of oil (engine, hydraulic, gear, etc.). When selecting a hydraulic oil be sure it matches the specified SAE viscosity rating and is intended to be used as a hydraulic oil. See Technical Data—Lubrication. 3.20 Hydraulic Fluid Level See Graphic: wc_gr000483 A hydraulic oil level sight gauge (e) is located on the hydraulic tank inside the rear section of the machine. Check that the oil level is within 25 mm (one inch) of the top of the sight gauge. Add oil as required through the filter housing on top of hydraulic tank. If hydraulic oil continually needs to be added, inspect hoses and connections for possible leaks. Repair hydraulic leaks immediately to prevent damage to hydraulic components. wc_tx000482gb.fm 36 RT 560 / RT 820 Maintenance 3.21 Changing Hydraulic Oil & Filter See Graphic: wc_gr000483 3.21.1 Remove drain plug from bottom of frame and allow hydraulic fluid to drain. Note: In the interests of environmental protection, place plastic sheeting and a container under the machine to collect the liquid which drains off. Dispose of this liquid properly. 3.21.2 Clean filter housing cover. Remove cover from the filter housing and remove the filter element (a). Be extremely careful to avoid dropping anything into the filter housing while cover is off. CAUTION wc_tx000482gb.fm 3.21.3 Install drain plug. 3.21.4 Fill hydraulic tank through filter housing (b) using clean hydraulic fluid. 3.21.5 Install new filter element (a) as shown in illustration. Replace housing cover. 37 Maintenance RT 560 / RT 820 3.22 Changing Drums See Graphic: wc_gr000485 The drums can be changed to adjust the working width of the machine. Drums are available in two standard sizes that provide a working width of 560 mm (22 in.) or 820 mm (32 in.). To change drum: wc_tx000482gb.fm 3.22.1 Lock the articulated joint. 3.22.2 Remove scraper bars. 3.22.3 Use a screw jack, hoist or other type of lifting device to lift drums 25– 50 mm (1–2 inches) off the ground. Lift only one end of the machine. Keep the other end in contact with the ground for stability. 3.22.4 Use a 22 mm wrench and remove the six screws which hold the drum to the drum support. 3.22.5 Remove the three plugs (a) covering the pusher holes. 3.22.6 Insert three of the mounting screws into the pusher holes and thread them in evenly to push drum off. 3.22.7 Install new drum and fasten to support. Secure mounting screws with a medium-strength threadlocking adhesive. 3.22.8 Replace pusher hole plugs. Install the correct size scraper bars. 38 RT 560 / RT 820 Maintenance 3.23 Storage If storing unit longer than 30 days the following steps are recommended: 3.23.1 Change the engine oil. 3.23.2 Clean or change air cleaner elements. 3.23.3 Clean the engine cylinder cooling fins. 3.23.4 Drain any water that may have collected at the bottom of the fuel tank. Replace the fuel filter. Refill the tank with fresh No. 2 diesel fuel. Note: Diesel fuel is subject to bacterial growth which can contaminate fuel lines. Allowing the tank to sit dry for a long period of time helps promote such growth. The addition of a biocide to the fuel is recommended to inhibit bacterial growth and protect the engine fuel system. 3.23.5 Store the unit indoors in a clean dry area. If the unit must be stored outside, cover it. 3.24 Jobsite Storage See Graphic: wc_gr000486 Never allow the roller to sit overnight in a ditch, trench or other lowlying area which might fill with water during a heavy rain. Park the roller on a flat level surface, out of the way of traffic patterns and congestion. If the roller must be parked on an incline, chock the drums to prevent any chance of movement. If leaving the roller on the job site, remember to remove the key and lock the control panel cover and engine hood to prevent tampering. Both the front and rear hoods and access cover are equipped with a locking ring (a) for use with a padlock for this purpose. If desired, the CombiControl can be removed from the roller and stored separately. wc_tx000482gb.fm 39 Maintenance RT 560 / RT 820 3.25 Hydrauic Schematic wc_tx000482gb.fm 40 RT 560 / RT 820 Maintenance 3.26 Hydraulic Schematic Components See Graphic: wc_gr000371 Ref. Description Ref. Description 1 Brake (9001, 9003) 9 Oil cooler 2 Brake valve (9001, 9003) 10 Return filter 3 Drive motor 11 Steering cylinder 4 Drive pump 12 Steering valve 5 Exciter motor 13 Strainer 6 Exciter pump 14 Travel valve 7 Exciter (vibration) valve 15 Relief valve 8 Manifold wc_tx000482gb.fm 41 Maintenance RT 560 / RT 820 3.27 Hydraulic Diagram wc_tx000482gb.fm 42 RT 560 / RT 820 Maintenance 3.28 Hydraulic Diagram Components See Graphic: wc_gr000370 Ref. Description Ref. Description 1 Brake (9001, 9003) 9 Oil cooler 2 Brake valve (9001, 9003) 10 Return filter 3 Drive motor 11 Steering cylinder 4 Drive pump 12 Steering valve 5 Exciter motor 13 Strainer 6 Exciter pump 14 Travel valve 7 Exciter (vibration) valve 15 Relief valve 8 Manifold wc_tx000482gb.fm 43 Maintenance RT 560 / RT 820 3.29 Electrical Schematic (Main) "A " B r "B " W b b 1 c 1 1 4 2 "2 " 4 "4 " 3 2 G "1 " 3 R B W d C B e "A " G W A "C " "B " A "C " C B O r/W f 3 2 3 0 2 6 2 4 2 0 g 3 2 O r 2 8 G 3 0 2 6 W 2 4 G r 2 0 1 8 T /B P r k 1 4 Y /O r T 1 2 1 0 B 6 P A B m P B r " 0 " A R C P a C W D G /W p E q r W G /R F t R R B r B T /R G /B j B r B o " 1 " n B A h P L 1 6 4 1 6 B Y b 2 1 8 A s B r B w c _ g r0 0 0 4 9 0 3.30 Electrical Schematic (Main) Components See Graphic: wc_gr000490 Ref. a b c d e Description Engine connector Decoder module Receptacle Infra-red eye module Control cord wc_tx000482gb.fm Ref. k m n o p 44 Description Glow plug Tilt Keyswitch 82 Ω resistor Hour meter RT 560 / RT 820 Maintenance Ref. Description Ref. Description f Hydraulic valves q Alternator g Backup safety r Oil h Reverse polarity module s Battery 12VDC j Control t To starter “30” Note: Decoder has 10 second switchover delay for exciter outputs Ref. 1 2 Ref. 32 30 28 26 24 22 20 18 Ref. 32 30 26 24 b1 Decoder Module Terminal Strip Description Ref. Description Negative, ground 3 Not used Signal, I.R. 4 Positive, 12VDC b2 Decoder Module Terminal Strip Description Ref. Description Reverse 16 Steering - right Forward 14 High speed Control light 12 Fuel valves Vibration - high 10 Starter Vibration - low 8 Not used Not used 6 12V (positive) Brake (9001, 9003) 4 Ground Steering - left f Hydraulic Valves Ref. Description 20 Brake 18 Steering - left 16 Steering - right 14 High speed Description Reverse Forward Vibration - high Vibration - low Wire Colors B Black R Red Y Yellow Or Orange G Green T Tan Br Brown Pr Purple L Blue V Violet Cl Clear Sh Shield P Pink W White Gr Gray LL Light blue wc_tx000482gb.fm 45 Maintenance RT 560 / RT 820 3.31 Electrical Diagram (Main) wc_tx000482gb.fm 46 RT 560 / RT 820 Maintenance 3.32 Electrical Diagram (Main) Components See Graphic: wc_gr000372 Ref. Description Ref. Description 1. Engine connector 10. Glow plug 2. Decoder module 11. Tilt 3. Receptacle 12. Keyswitch 4. Infra-Red eye module 13. 82 Ω resistor 5. Control cord 14. Hour meter 6. Hydraulic valves 15. Alternator 7. Backup safety 16. Oil 8. Reverse polarity module 17. Battery 12VDC 9. Control 18. Charging cable Wire Colors B Black R Red Y Yellow Or Orange G Green T Tan Br Brown Pr Purple L Blue V Violet Cl Clear Sh Shield P Pink W White Gr Gray LL Light blue wc_tx000482gb.fm 47 Maintenance RT 560 / RT 820 3.33 Electrical Schematic (Engine) wc_tx000482gb.fm 48 RT 560 / RT 820 Maintenance 3.34 Electrical Schematic (Engine) See Graphic: wc_gr000491 Ref. Description Ref. Description a Engine connector g Engine oil pressure b From battery h Starter relay c Starter j Anti-restart module d Alternator k Glow plug e Voltage regulator m Glow plug relay f QSD fuel valve Wire Colors B Black R Red Y Yellow Or Orange G Green T Tan Br Brown Pr Purple L Blue V Violet Cl Clear Sh Shield P Pink W White Gr Gray LL Light blue wc_tx000482gb.fm 49 Maintenance RT 560 / RT 820 3.35 Electrical Diagram (Engine) wc_tx000482gb.fm 50 RT 560 / RT 820 Maintenance 3.36 Electrical Diagram (Engine) See Graphic: wc_gr000373 Ref. Description Ref. Description 1. Engine connector 7. Engine oil pressure 2. From battery 8. Starter relay 3. Starter 9. Anti-restart module 4. Alternator 10. Glow plug 5. Voltage regulator 11. Glow plug relay 6. QSD fuel valve Wire Colors B Black R Red Y Yellow Or Orange G Green T Tan Br Brown Pr Purple L Blue V Violet Cl Clear Sh Shield P Pink W White Gr Gray LL Light blue wc_tx000482gb.fm 51 Maintenance RT 560 / RT 820 3.37 Troubleshooting Problem / Symptom ENGINE DOES NOT START Reason / Remedy • Fuel tank empty. Fill with No. 2 diesel fuel and prime fuel lines. • Wrong type of fuel. • Old fuel. Drain tank, change fuel filter and fill with fresh fuel. • Fuel system not primed. • Fuel filter restricted or plugged. Replace filter. • Battery connections loose or corroded. Battery dead. • Engine oil level too low. • Air cleaner element plugged. • Starter motor defective. • Starter button on control box or transmitter defective. • Fuel valve solenoids on engine inoperative. • Starter relay inoperative. • Electrical connections loose or broken. • Machine out of infrared signal range. ENGINE STOPS BY ITSELF • Fuel tank empty. • Fuel filter plugged. • Fuel lines broken or loose. • Machine out of infra-red range. NO VIBRATION • Machine in high speed travel mode. • Defective switch or poor connection in control box or transmitter. • Solenoid on vibration valve inoperative. • Exciter assembly damaged. • Exciter motor coupling damaged. • Exciter motor damaged. • Exciter pump damaged. wc_tx000482gb.fm 52 RT 560 / RT 820 Maintenance Problem / Symptom Reason / Remedy NO TRAVEL or TRAVEL ONLY IN ONE DIRECTION • Defective switch or poor connection in control box or transmitter. • Solenoid on travel valve inoperative. • Drive gearcase assembly damaged. • Loose, broken or corroded wire connections. • Drive motor damaged. • Drive pump damaged. NO HIGH SPEED TRAVEL • Defective switch or poor connection in control box or transmitter. • Solenoid on manifold inoperative. • Loose, broken or corroded wire connections. • Exciter pump worn or damaged. • Vibration is turned on. NO STEERING • Defective switch or poor connection in control box or transmitter. • Solenoid on steering valve inoperative. • Loose, broken or corroded wire connections. • Steering cylinder damaged. • Locking bar is engaged. wc_tx000482gb.fm 53 Hydraulic System 4. RT 560 / RT 820 Hydraulic System 4.1 Hydraulic Flow Diagram—Older Machines Return Lines Motor Case Drains High Pressure Lines Supply Line c e b a d g f P1 i E F l P2 j h m k q o p r n Front Rear wc_gr002481 wc_tx000472gb.fm 54 RT 560 / RT 820 4.2 Hydraulic System Flow Diagram Components—Older Machines Used on models: 0009000 revision 120 and lower 0009001 revision 122 and lower 0009002 revision 119 and lower 0009003 revision 120 and lower a Suction strainer g Steering cylinder m Check valve b Return line filer h Brake valve n Front exciter motor c Hydraulic tank i Vibration valve o Front drive motor d Front pump j Main manifold p Brake assembly* e Rear pump k Travel valve q Rear drive motor f Oil cooler l Steering valve r Rear exciter motor * Used only on machines 9001 & 9003 wc_tx000472gb.fm 55 Hydraulic System 4.3 RT 560 / RT 820 Flow Diagram—Newer Machines Return Lines Motor Case Drains High Pressure Lines Supply Line c b a e d f g P1 i h E F l P2 j m k p o Front Rear q r n wc_gr002482 wc_tx000472gb.fm 56 RT 560 / RT 820 4.4 Hydraulic System Flow Diagram Components—Newer Machines Used on models: 0009000 revision 121 and higher 0009001 revision 123 and higher 0009002 revision 120 and higher 0009003 revision 121 and higher a Suction strainer g Steering cylinder m Check valve b Return line filer h Brake valve n Front exciter motor c Hydraulic tank i Vibration valve o Front drive motor d Front pump j Main manifold p Brake assembly* e Rear pump k Travel valve q Rear drive motor f Oil cooler l Steering valve r Rear exciter motor * Used only on machines 9001 & 9003 wc_tx000472gb.fm 57 Hydraulic System 4.5 RT 560 / RT 820 Hydraulic System See Graphic: wc_gr002481 and wc_gr002482 Description: Pressure in the hydraulic system is generated by two gear pumps mounted in tandem to the back of the engine. The pumps are driven by a common shaft which is connected to the engine crankshaft through a three-piece coupling. Capacity of the front pump (d) is approximately 8 gpm (32 l/m) and is used to operate vibration or high speed travel. Rear pump (e) capacity is approximately 4 gpm (16 l/m) and is used for low speed travel. A control valve block directs oil flow from the pumps to the motors and steering cylinder. The control valve block is mounted beneath the control panel at the rear of the machine. It consists of the manifold (j), vibration (i), travel (k) and steering (l) valves. These valves are solenoid operated. During operation, the solenoids respond to the electrical signals being transmitted by the operator from the control box. Two reliefs, located on the main manifold, limit exciter and drive pressures to 3000 PSI (21 mPa). The steering circuit relief is mounted on the steering valve and is set at 1000 PSI (7 mPa). See section Control Valve Block for control valve components. Oil from the hydraulic tank (c) flows through a suction strainer (a) before it is drawn into the pump suction port. The suction strainer is mounted in the tank and is magnetic for removing metal particles. Hoses connect the output ports of the pumps to the main manifold (j) on the control block. The main manifold directs oil flow into the vibration (i) and travel (k) valves. These valves in turn supply hydraulic pressure to operate the exciter and drive motors. When operating in low-speed travel, the larger front pump is used to operate the exciter motors (n, r), the smaller rear pump is used to operate the drive motors (o, q). When operating in high-speed travel, the main manifold redirects front pump oil flow away from the exciter motors to the drive motors. Flow from the rear pump is directed back to the tank. In high-speed travel the exciter motors do not operate. See later sections in this unit for a detailed description of the exciter and drive circuits. Return oil from the drive circuit flows to the steering valve (l) which directs it to the steering cylinder (g). The hydraulic system is protected by a return line filter (b). The return line filter removes particles down to 10 microns and includes a by-pass for cold weather start-up. wc_tx000472gb.fm 58 RT 560 / RT 820 Hydraulic System Oil Cooler & Brake: Return flow from the steering valve is directed through a check valve (m) to the oil cooler (f) before returning to the hydraulic tank. A hydraulic brake (p) is available on machines with item numbers 9001 & 9003. The brake is connected to the hydraulic system through the main manifold (j) and brake valve (h). The brake is spring loaded and normally set when the machine is off. When the hydraulic system is pressurized, the brake is automatically released. The brake can be set manually by setting the toggle switch on the transmitter module. This activates the solenoid on the brake valve (h) and releases the hydraulic pressure to the brake. This will also shut off the engine. wc_tx000472gb.fm 59 Hydraulic System 4.6 RT 560 / RT 820 Hydraulic Hose Connections—Older Machines h 19 16 4 f e d 12 9 2 b a 8 7 10 1 1 6 24 25 4 5 17 18 11 16 14 j 22 18 k i 23 15 26 20 l 19 18 n 32 37 27 34 o 25 21 36 29 p 32 31 27 q 33 5 27 35 27 27 r 33 18 wc_gr002483 wc_tx000472gb.fm 60 RT 560 / RT 820 4.7 Hydraulic System Hydraulic Hose Connection Components—Older Machines See Graphic: wc_gr002483 No Description Part No. No Description Part No. 1 HOSE - Oil Cooler to Check Valve 0086394 18 FITTING - Elbow 90, Hydraulic 0078962 2 FITTING - Sae/orfs, SDE45, 08x08st 0086581 O-RING .364 x .070 2-012 0080736 O-RING .644 x .087 DURO90 3-908 0080732 O-RING .468 x .078 DURO90 3-906 0080731 O-RING .489 x .070 2-014 0080737 FITTING - Male Adapter, Straight 0078861 FITTING - Hydraulic 0083412 O-RING .364 x .070 2-012 0080736 O-RING .364 x .070 2-012 0080736 O-RING .468 x .078 DURO90 3-906 0080731 O-RING .468 x .078 DURO90 3-906 0080731 20 HOSE - Front Vibration 0117532 FITTING - Elbow 90, Hydraulic 0078962 21 HOSE - Rear Vibration 0117534 O-RING .364 x .070 2-012 0080736 22 HOSE - Front Exciter to Tank 0116693 O-RING .468 x .078 DURO90 3-906 0080731 23 HOSE - Front Drive to Tank 0117535 FITTING - Hydraulic 0083411 24 HOSE - Brake Valve to Blk-hd Fitng. 0117528 O-RING .364 x .070 2-012 0080736 25 HOSE - Check Valve to Return Filter 0086392 26 HOSE - Manifold to Return Filter 0081842 27 FITTING - Elbow 90, Hydraulic 0081340 4 5 6 19 7 O-RING 0081913 8 HOSE - Oil Supply 0083446 O-RING .489 x .070 2-014 0080737 9 FITTING #8 0081583 O-RING .755 x .097 DURO90 3-91 0080733 O-RING .468 x .078 DURO90 3-906 0080731 FITTING - orfs, Blk-Hd, E90 06 ST. 0086556 wc_tx000472gb.fm 61 28 Hydraulic System RT 560 / RT 820 h 19 16 4 f e d 12 9 2 b a 8 7 10 1 1 6 24 25 4 5 17 18 11 16 14 j 22 18 k i 23 15 26 20 l 19 18 n 32 37 27 34 o 25 21 36 29 p 32 31 27 q 33 5 27 35 27 27 r 33 18 wc_gr002483 wc_tx000472gb.fm 62 RT 560 / RT 820 Hydraulic System O-RING .489 x .070 2-014 0080737 O-RING .364 x .070 2-012 0080736 10 HOSE - Pump to Manifold 0116705 29 HOSE - Bulk-Head Fitting to Brake 0117528 11 HOSE - Pump to Manifold 0116706 30 HOSE - Front Drive to Manifold 0117531 12 HOSE - Brake Valve to Tank 0086578 31 HOSE - Rear Drive to Manifold 0117533 13 FITTING #8 0081583 32 FITTING - Elbow 90, st. thd, Hyd. 0052713 O-RING .644 x .087 DURO90 3-908 0080732 O-RING .351 x .072 DURO90 3-904 0080730 O-RING .489 x .070 2-014 0080737 FITTING - str. thd. Connector 0079875 14 HOSE - Steering Cyl. to Steering Valve 0117521 O-RING .755 x .097 DURO90 3-91 0080733 15 HOSE - Steering Cyl. to Steering Valve 0117520 O-RING .489 x .070 2-014 0080737 16 FITTING - Hydraulic 0083434 34 HOSE - Rear Exciter to Tank 0117526 O-RING .364 x .070 2-012 0080736 35 HOSE - Front Drive to Rear Drive 0117530 O-RING .468 x .078 DURO90 3-906 0080731 36 HOSE - Front Exciter to Rear Exciter 0117522 HOSE - Manifold to Brake Valve 0116707 37 HOSE - Rear Drive to Tank 0117525 17 33 a Suction strainer g Steering cylinder m Check valve b Return line filer h Brake valve n Front exciter motor c Hydraulic tank i Vibration valve o Front drive motor d Front pump j Main manifold p Brake assembly* e Rear pump k Travel valve q Rear drive motor f Oil cooler l Steering valve r Rear exciter motor * Used only on machines 9001 & 9003 wc_tx000472gb.fm 63 Hydraulic System 4.8 RT 560 / RT 820 Control Valve Block 1 13 14 2 3 16 12 4 SV EV P1 11 E F 5 P2 10 TV 9 15 MN 8 7 6 wc_gr002484 WARNING wc_tx000472gb.fm The solenoids located on the vibration and travel valves are equipped with manual over-rides. Use of these over-rides for testing machine functions is not recommended. Pushing any of the over-ride buttons while the engine is running will cause sudden machine movement and could result in a serious or fatal injury. If testing must be done using these over-rides, stand at side of machine and make sure feet are away from drums before pushing button. 64 RT 560 / RT 820 4.9 Hydraulic System Control Valve Block Components 1 Travel speed solenoid 11 Check valve for high speed travel 2 Reverse travel solenoid 12 Low amplitude vibration solenoid 3 Right steer solenoid 13 Manual over-ride button (4 places) 4 Left steer solenoid 14 Exciter circuit relief valve 3000 PSI (21 MPa) 5 Flow regulating valve for steering 15 Steering circuit relief valve 1000 PSI (7 MPa) 6 Double check valve for drive circuit 16 Drive circuit relief valve 7 Foward travel solenoid SV Steering control valve 8 Vibration / high speed travel control valve TV Travel valve (forward / reverse) 9 High amplitude vibration solenoid EV Exciter control valve 10 Outlet to brake valve MN Main manifold block * Used only on machines 9001 & 9003 wc_tx000472gb.fm 65 Hydraulic System RT 560 / RT 820 Notes wc_tx000472gb.fm 66 RT 560 / RT 820 Hydraulic System 4.10 High-Speed Travel Circuit Description See Graphic: wc_gr002485 Note: The diagram shows the direction of oil flow when operating in forward at high speed travel, vibration switch in OFF position. High speed travel is obtained by using the full flow from the larger front pump (g) to operate the drive motors. This is accomplished by switching flow from the front pump away from the exciter circuit and into the drive circuit. The pilot-operated directional control valve (h) located in the main manifold valve (k) is used to do the switching. Oil flows from the rear pump (f) to the travel speed valve (c). When the operator switches to high speed travel, the travel speed solenoid is energized, which shifts the valve to the position shown. In this position, oil flows through the valve and returns to the hydraulic tank. This causes pilot oil pressure at the directional control valve (h) to drop, and allows spring force in the valve to shift the spool to the position shown. In this position, oil flow from the front pump is directed to the brake, drive, and steering circuits. There is no flow to the exciter motors. Relief valve (j) limits hydraulic pressure in the drive circuit to 3000 psi (21 mPa). Check valve (i) prevents front pump oil flow from pressurizing the pilot circuit and shifting the directional control valve. Machine forward and reverse directions are controlled by the solenoidoperated travel valve (a) which switches the direction of oil flow through the valve and drive motors. When the operator switches to forward, the bottom solenoid on the travel valve energizes, which shifts the valve spool to the position shown. In this position, oil flows through the valve, rear drive motor (e), front drive motor (d), and back through the valve to the steering circuit. With the directional controls in neutral, both solenoids are off and springs in the travel valve (a) return the spool to a neutral position. Operation in reverse will cause oil through the travel valve (a) to flow opposite the direction shown, reversing the direction of the drive motors. Note: Top or bottom as described above refers to the location of the solenoids as installed on the machine. A double check valve (b) provides a hydraulic lock to prevent the drive motors from rotating while the machine is in neutral or is turned off. When pressurized, the pilot port in each check valve opens the valve and allows oil flow in both directions. wc_tx000472gb.fm 67 Hydraulic System RT 560 / RT 820 4.11 High-Speed Travel Circuit 1* 2 7 3 6 a j b 3000 PSI (21 MPa) i 5 h d 3000 PSI (21 MPa) c P1 P2 e 4 g f 8 HIGH PRESSURE FLOW RETURN FLOW PILOT PRESSURE INACTIVE LINE (NO PRESSURE) wc_gr002485 * Used only on machines 9001 & 9003 wc_tx000472gb.fm 68 RT 560 / RT 820 Hydraulic System 4.12 High-Speed Travel Circuit Components See Graphic: wc_gr002485 a Travel valve f Rear pump b Double check valve g Front pump c Travel speed valve h Directional control valve d Front drive motor i Check valve e Rear drive motor j Drive circuit relief valve 1* To brake valve. 2 Return line to hydraulic tank. 3 To steering valve. 4 Valve (c) opens and directs flow from rear pump (f) into return line. 5 Spring pressure shifts valve (h) and directs flow from front pump (g) into drive circuit. 6 To exciter (vibration valve). 7 From exciter motor case drain. 8 From hydraulic tank. * Used only on machines 9001 & 9003 wc_tx000472gb.fm 69 Hydraulic System RT 560 / RT 820 4.13 Low-Speed Travel Circuit 1* 2 7 3 6 a j 3000 PSI (21 MPa) b 9 i 5 h k d c 3000 PSI (21 MPa) P1 P2 e 4 g f 8 HIGH PRESSURE FLOW RETURN FLOW PILOT PRESSURE INACTIVE LINE (NO PRESSURE) wc_gr002486 * Used only on machines 9001 & 9003 wc_tx000472gb.fm 70 RT 560 / RT 820 Hydraulic System 4.14 Low-Speed Travel Circuit Components See Graphic: wc_gr002486 a Travel valve g Front pump b Double check valve h Directional control valve c Travel speed valve i Check valve d Front drive motor j Drive circuit relief valve e Rear drive motor k Exciter circuit relief valve f Rear pump 1* To brake valve. 2 Return line to hydraulic tank. 3 To steering valve. 4 Valve (c) closes and directs flow from rear pump (f) through check valve (i) into drive circuit. 5 Pressure from rear pump (f) shifts valve (h) and directs flow from front pump (g) into exciter circuit. 6 To exciter (vibration valve). 7 From exciter motor case drain. 8 From hydraulic tank. 9 Pilot pressure. * Used only on machines 9001 & 9003 wc_tx000472gb.fm 71 Hydraulic System RT 560 / RT 820 4.15 Low-Speed Travel Circuit Description See Graphic: wc_gr002486 Note: The diagram shows the direction of oil flow when operating at low speed travel and going forward, vibration switch in OFF position. Low speed travel is obtained by using oil flow from the smaller rear pump (f) to operate the drive motors. This is accomplished by the solenoid-operated travel speed valve (c), which directs flow from the rear pump to the drive circuit. Oil flows from the rear pump to the travel speed valve. When the operator switches to low speed travel, the travel speed valve solenoid (c) is turned off. This allows spring force in the valve to shift the spool to the position shown. In this position, flow from the rear pump is directed through check valve (i) and on to the drive and steering circuits. High pressure oil is also directed to the pilot port of the directional control valve (h). Spring resistance in the directional control valve (h) is overcome by the increased oil pressure which shifts the spool to the position shown. In this position, oil flow from the larger front pump (g) is directed to the exciter circuit. A flow regulating valve in the steering circuit always provides enough pressure to shift the directional control valve even if the travel and steering function are in neutral. Relief valves (j, k) limit hydraulic pressure in the drive and exciter circuits to 3000 psi (21 mPa). Machine forward and reverse movements are controlled by the solenoid-operated travel direction valve (a) which switches the direction of oil flow through the valve and drive motors. When the operator switches into forward, the bottom solenoid on the travel valve energizes, which shifts the valve spool to the position shown. In this position, oil flows through the valve, rear drive motor (e), front drive motor (d) and back through the valve to the steering circuit. When the operator switches into reverse, oil flow through the valve is opposite the direction shown, reversing the direction of the drive motors. When the machine is in neutral, both solenoids are off and springs in the valve return the spool to neutral. Note: Top or bottom as described above refers to the location of the solenoids as installed on the machine. A double check valve (b) provides a hydraulic lock to prevent the drive motors from rotating while the machine is in neutral or turned off. When pressurized, the pilot port in each check valve opens the valve and allows oil flow in both directions. wc_tx000472gb.fm 72 RT 560 / RT 820 Hydraulic System 4.16 Exciter Circuit Description See Graphic: wc_gr002487 Note: The diagram shows the direction of oil flow when operating at low speed travel with the EXCITER switch set to LO. Operating in low speed travel opens flow from the front pump to the exciter circuit. When operating in high speed travel the exciter circuit is closed and all flow is directed to the drive motors . When the operator switches to low speed travel, the travel speed valve (d) is turned off. This allows spring force in the valve to shift the spool to the position shown. In this position, flow from the rear pump is directed through check valve (h) and on to the drive and steering circuits. High pressure oil is also directed to the pilot port of the directional control valve (c). Spring resistance in the directional control valve is overcome by the increased oil pressure which shifts the spool to the position shown. In this position, oil flow from the larger front pump (g) is directed to the exciter circuit. A flow regulating valve in the steering circuit always provides enough pressure to shift the directional control valve even if the travel and steering functions are in neutral. Low or high amplitude vibration is controlled by the solenoid-operated exciter valve (l). This valve switches the direction of oil flow through exciter motors. With the VIBRATION pushbutton switch set in the low position, the top solenoid is energized and the valve spool will be at the position shown. In this position, oil flows through the valve, rear exciter motor (i), to the front exciter motor (j) and back through the valve to the hydraulic tank. When the VIBRATION pushbutton switch is in the high position, the LO solenoid is turned off and the valve returns to neutral. A timer in the electrical circuit keeps the valve in neutral for approximately 7 seconds before turning on the HI solenoid. This allows the exciter weights to stop rotating before reversing direction. With the exciter switch set at HI, oil flow through the motors is opposite of the direction shown, causing the exciter motors to reverse direction. Note: Top or bottom as described above refers to the location of the solenoids as installed on the machine. Relief valve (e) limits hydraulic pressure in the exciter circuit to 3000 psi (21 mPa). wc_tx000472gb.fm 73 Hydraulic System RT 560 / RT 820 4.17 Exciter Circuit 1* 2 k l 3 a 3000 PSI (21 MPa) h j c i e d 3000 PSI (21 MPa) P1 P2 g f 4 HIGH PRESSURE FLOW RETURN FLOW PILOT PRESSURE INACTIVE LINE (NO PRESSURE) wc_gr002487 * Used only on machines 9001 & 9003 wc_tx000472gb.fm 74 RT 560 / RT 820 Hydraulic System 4.18 Exciter Circuit Components See Graphic: wc_gr002487 a Drive circuit relief valve g Front pump b Travel valve h Check valve c Directional control valve i Rear exciter motor d Travel speed valve j Front exciter motor e Exciter circuit relief valve k Exciter valve f Rear pump l Exciter speed valve 1* To brake valve. 2 Return line to hydraulic tank. 3 To drive and steering valve. 4 From hydraulic tank. * Used only on machines 9001 & 9003 wc_tx000472gb.fm 75 Hydraulic System RT 560 / RT 820 4.19 Steering Circuit Description See graphic: wc_gr002488 Note: The diagram shows the direction of oil flow when steering left. The steering circuit consists of a flow regulating valve (c), pressure relief valve (f), solenoid-operated control valve (g), and steering cylinder (h). Return oil from the drive circuit flows into the steering circuit and through the flow regulating valve (c) before entering the solenoidoperated steering control valve (g). The flow regulating valve maintains a constant 1 gpm flow rate in the steering circuit. This is necessary to provide the same degree of steering control whether operating in low or high speed travel. It also creates sufficient back pressure in the system to shift the directional control valve in the main manifold. This keeps the exciter circuit open when the steering and travel valves are in neutral. When the operator steers left, the top solenoid on the steering valve (g) is energized and the valve spool shifts to the position shown. In this position, oil flows out port “E” of the valve, to the rod end of the steering cylinder (h). At the same time, oil from the head end of the cylinder returns through port “F” and back to the hydraulic tank. This causes the cylinder rod to retract, turning the machine left. When the operator steers right, oil flows in the opposite direction causing the cylinder rod to extend and turn the machine to the right. With steering in neutral, both solenoids are turned off. Springs in the valve return the spool to center which allows oil to pass through the valve, out port “T”, and back to tank. Note: Top or bottom as described above refers to the location of the solenoids as installed on the machine. Relief valve (e) limits hydraulic pressure in the steering circuit to 1000 psi (7 mPa). wc_tx000472gb.fm 76 RT 560 / RT 820 Hydraulic System 4.20 Steering Circuit c 1000 PSI (7 MPa) 1 f T a 2 g b E F h d e HIGH PRESSURE FLOW RETURN FLOW PILOT PRESSURE INACTIVE LINE (NO PRESSURE) wc_gr002488 wc_tx000472gb.fm 77 Hydraulic System RT 560 / RT 820 4.21 Hydraulic System Cleanliness Keeping the hydraulic fluid clean is a vital factor affecting the service life of hydraulic components. Oil in hydraulic systems is used not only to transfer power, but also to lubricate the hydraulic components used in the system. Keeping the hydraulic system clean will help avoid costly downtime and repairs. Major sources of hydraulic system contamination include: • Particles of dirt introduced when the hydraulic system is opened for maintenance or repair. • Contaminants generated by the mechanical components of the system during operation. • Improper storage and handling of hydraulic fluid. • Use of the wrong type of hydraulic fluid. • Leakage in lines and fittings. To minimize hydraulic fluid contamination: • Clean hydraulic connections before opening lines. When adding oil, clean hydraulic tank filler cap and surrounding area before removing. • Avoid opening pumps, motors or hose connections unless absolutely necessary. • Plug or cap all open hydraulic connections while servicing system. • Change hydraulic filters and fluids at the recommended service intervals. 4.22 Hydraulic Oil Requirements WACKER recommends the use of a good petroleum-based, anti-wear hydraulic oil in the hydraulic system of this equipment. Good anti-wear hydraulic oils contain special additives to reduce oxidation, prevent foaming and provide for good water separation. Premium grade, anti-wear hydraulic fluid. Viscosity: 10W30. See Technical Data for quantity. Most hydraulic oils are available in different viscosities. The SAE number for an oil is used strictly to identify viscosity—it does not indicate the type of oil (engine, hydraulic, gear, etc.). wc_tx000472gb.fm 78 RT 560 / RT 820 Hydraulic System 4.23 Checking Hydraulic Pressures See Graphic: wc_gr002489 Before making pressure checks: 4.23.1 Inspect machine for hydraulic leaks. 4.23.2 Check level of hydraulic fluid in tank. 4.23.3 Check engine operating speed at full throttle. Set at 2600 RPM. 4.23.4 Run machine for 5-10 minutes before testing to allow time for hydraulic system to warm up. A test port is provided on the front (a) and rear (b) pumps for checking system pressures. Note: Test ports are equipped with quick disconnects and are designed for use with WACKER hydraulic test equipment. Before opening hydraulic connections, shut engine off. WARNING b a wc_gr002489 wc_tx000472gb.fm 79 Hydraulic System RT 560 / RT 820 4.24 Checking Drive Circuit See Graphic: wc_gr002489 Operating Pressure (Low Speed) Check operating pressure with the machine on a level compactible surface, such as gravel or dirt. 4.24.1 Install 5000 PSI gauge in rear pump test port (b). 4.24.2 Start engine and run at full throttle (2600 rpm). 4.24.3 Move joystick forward but not fully forward, and read forward operating pressure. Record reading. 4.24.4 Move joystick in reverse and read reverse operating pressure. Record reading. Note: Operating pressures should be within range as shown in section System Pressures. If pressure readings are above or below range, refer to section Troubleshooting Hydraulic System. Operating Pressure (High Speed) Check operating pressure with the machine on a level compactible surface, such as gravel or dirt. 4.24.5 Install 5000 PSI gauge in front pump test port (a). 4.24.6 Start engine and run at full throttle (2600 rpm). 4.24.7 Move joystick fully forward and read forward operating pressure. Record reading. 4.24.8 Move joystick in reverse and read reverse operating pressure. Record reading. Note: Operating pressures should be within range as shown in section System Pressures. If pressure readings are above or below range, refer to section Troubleshooting Hydraulic System. Relief Pressure 4.24.9 Block in front of and behind both drums to prevent machine from moving, or deadhead machine against a solid concrete abutment. Make sure blocks are large enough so machine will not climb over them during testing. WARNING 4.24.10 Install a 5000 PSI gauge in front pump test port (a). 4.24.11 Start engine and run machine at full throttle. wc_tx000472gb.fm 80 RT 560 / RT 820 Hydraulic System 4.24.12 Push joystick fully forward until pressure on gauge tops out. This is the high speed relief valve pressure. Make sure drums do not spin. Record reading. 4.24.13 Stop engine. Install gauge in rear pump test port (b). 4.24.14 Push joystick forward but not fully forward until pressure on gauge tops out. This is the low speed relief valve pressure. Record reading. Note: Relief valve pressures should be within range as shown in section System Pressures. If pressure readings are above or below range, refer to section Troubleshooting Hydraulic System. b a wc_gr002489 4.25 Checking Steering Circuit See Graphic: wc_gr002489 4.25.1 Install 2000 PSI gauge in rear pump test port (b). 4.25.2 Start engine and run machine at full throttle (2600 rpm). 4.25.3 Move joystick right or left. Gauge will show operating pressure until cylinder gets to end of stroke and then show relief pressure. Record readings. Note: Operating and relief pressures should be within range as shown in section System Pressures. If pressure readings are above or below range, refer to section Troubleshooting Hydraulic System. wc_tx000472gb.fm 81 Hydraulic System RT 560 / RT 820 4.26 Checking Vibration Circuit See Graphic: wc_gr02489 Test vibration with drums on soil or gravel. If testing is done inside, position drum on rubber tire or heavy mat to absorb vibration. DO NOT run vibration on concrete. CAUTION Operating Pressure (High Amplitude) 4.26.1 Install 5000 PSI gauge in front pump test port (a). 4.26.2 Start engine and run machine at full throttle (2600 rpm) with joystick in neutral. 4.26.3 Switch vibration to HI. Gauge will show relief pressure momentarily as exciter starts and then fall to normal operating pressure as exciter reaches full speed. Record reading. Note: Operating pressures should be within range as shown in section System Pressures. If pressure readings are above or below range, refer to section Troubleshooting Hydraulic System. Operating Pressure (Low Amplitude) 4.26.4 Install 5000 PSI gauge in front pump test port (a). 4.26.5 Start engine and run machine at full throttle (2600 rpm) with joystick in neutral. 4.26.6 Switch vibration to LO. Gauge will show relief pressure momentarily as exciter starts and then fall to normal operating pressure as exciter reaches full speed. Record reading. Note: Operating pressures should be within range as shown section System Pressures. If pressure readings are above or below range, refer to section Troubleshooting Hydraulic System. 4.27 Testing Drive & Exciter Circuit Relief Valves See Graphic: wc_gr002489 4.27.1 wc_tx000472gb.fm Drive and exciter circuit relief valves are identical and set at the same pressures. They can be tested for correct operation by simply swapping positions with one another. Swap the one in question with the other and test for correct pressure. If pressure is correct with the second valve installed, the original valve is malfunctioning and will require replacement. 82 RT 560 / RT 820 Hydraulic System 4.28 System Pressures The table below lists normal operating pressures based on the machine running over a level compactible surface. These pressures are approximate and will vary for different operating conditions. Operating pressure readings for the drive and steering circuits may be higher when operating in extremely loose soils or on an incline. Operating pressure readings will be lower when operating on flat, hard surfaces where there is less surface resistance. Normal Operating Pressure @ 2600 RPM PSI (mPa) Relief Valve Pressure PSI (mPa) Test Port Location Forward or Reverse in LOW Speed 180 - 600 (1.2 - 4.2) 3000 (21) Rear Pump Forward or Reverse in HIGH Speed 300 - 800 (2.1 - 5.6) 3000 (21) Front Pump Exciter in LOW Vibration 1050 - 1250 (7.3 - 8.7) 3000 (21) Front Pump Exciter in HIGH Vibration 1200 - 1600 (8.4 - 11.2) 3000 (21) Front Pump 300 - 800 (2.1 - 5.6) 1000 (7) Rear Pump (Low speed travel) Steering wc_tx000472gb.fm 83 Hydraulic System RT 560 / RT 820 4.29 Troubleshooting Hydraulic System Problem / Symptom REASON / REMEDY Drive circuit operating pressures are too LOW 1. Testing surface is too hard or smooth. Check readings while machine is on compactible soil. 2. Engine operating below 2600 rpm. Set throttle to deliver 2600 rpm. 3. Suction hose or fittings leaking, allowing air into pump inlet. Tighten hose fittings as necessary. 4. Oil level is too low in tank. Make sure oil is at proper level. 5. Worn pump coupling. Remove and repair as necessary. 6. Malfunctioning relief valve. Test relief valve for proper operation. Drive circuit operating pressures are too HIGH (ABOVE 800 psi) 1. Wrong weight of oil in drive gearcase (viscosity too high). Drain and fill with proper weight oil for operating conditions. If pressures are still high, continue. 2. Engine operating above 2600 rpm. Set throttle to deliver 2600 rpm. 3. Drum binding due to dirt build-up between drums and drum supports. Remove dirt build-up. 4. Drive assembly binding due to worn or improperly assembled parts. Remove, inspect, repair and properly assemble drive assembly. 5. Hoses routed incorrectly. Make sure hoses are routed properly. Exciter circuit operating pressure is too LOW (Below 800 psi) - Drive circuit pressure ok 1. Sticky spool in exciter or directional control valve, allowing partial pressure loss. Check electrical circuits to make sure solenoids are functioning properly. If ok, continue. or Remove control valve and repair or replace if necessary. 2. Hoses leaking. Tighten fittings. 3. Worn exciter motor(s). Replace exciter motor(s). 4. Malfunctioning relief valve. Test relief valve for proper operation. Exciter circuit operating pressure is too HIGH (Above 1800 psi) Drive circuit pressures ok 1. Wrong weight of oil in exciter assembly (viscosity too high). Drain and fill with proper weight oil for operating conditions. 2. Exciter assembly oil level too high. Remove, inspect, and repair exciter assembly as necessary. Fill with oil to proper level 3. Binding in exciter assembly (bearings worn or damaged). Remove, inspect, and replace exciter assembly as necessary. Relief pressure too LOW 1. Relief valve adjustment wrong. Adjust or replace valve as necessary. 2. Worn pump or motor. Repair as necessary. wc_tx000472gb.fm 84 RT Repair 5. Disassembly/Reassembly—Older Machines Disassembly/Reassembly—Older Machines 5.1 Tools Because all possible problems encountered while repairing the equipment cannot be anticipated, it is up to the mechanic to use common sense and good judgement in tool selection. The use of any special tools is recommended only for those operations where the use of conventional tools proves inadequate. Before substituting another tool or procedure, you should be satisfied that neither personal injury nor damage to the component will result. 5.2 Ordering Parts The repair procedures contained in this manual do not include part numbers. For parts replacement information, refer to the Parts Book originally supplied with the unit. If the original Parts Book has been lost, a replacement may be ordered from Wacker Corporation. When ordering a replacement Parts Book, please list the model number, item number, revision level, and serial number of the machine. Parts Books are also available on the Wacker Corporation Web site. See www.wackergroup.com. Enter the site as a visitor. 5.3 Reference Numbers ( ) Repair procedures contain reference numbers enclosed in parentheses ( ). These numbers refer to the item numbers shown on the assembly drawings and other detailed drawings. They are included to aid the mechanic in identifying parts and assembling components. 5.4 Weight Block See Graphic: wc_gr000843 The weight block symbol gives an approximate weight measurement to aid the mechanic when lifting/hoisting larger components. 250 kg (550 lbs.) wc_gr000843 wc_tx000473gb.fm 85 Disassembly/Reassembly—Older Machines 5.5 RT Repair Drum Assembly Exploded View 11 10 7 [L1,T1] 8 [L4] 6 9 [T2] 5 4 [G1] 12 [L2] 2 3 13 [L3] 1 [L1] 15[L3] 17 [L1,T5] 14[L1] 16 18 19 27 20 [L1,T3] 23 21 22 [L1,T3] 13 [L1,T1] 7 [L1,T1] 26 [L1,T4] 24 25 [L1,T4] wc_tx000473gb.fm wc_gr002501 86 RT Repair 5.6 Disassembly/Reassembly—Older Machines Drum Assembly Components See Graphic:wc_gr002501 Ref. Description 1 Screw (M8 x 16) 2 Ref. Description 6 14 Screw (M8 x 20) 2 Plate-retaining 1 15 Plate-cover 1 3 Seal-shaft 1 16 Washer-lock (A12) 6 4 Bearing-roller 1 17 Screw (M12 x 25) 6 5 Seal-shaft 1 18 Scraper-bar 2 6 Cover-support 1 19 Key 1 7 Screw (M10 x 20) 24 20 Stud- shockmount 1 8 Seal-shaft 1 21 Drum support 1 9 Nut-hex (1¼-18) 1 22 Screw (M12 x 35) 8 10 Washer (1-1/8") 1 23 Drum 2 11 Hub-drum 1 24 Washer (B17) 6 12 Plug (M26 x 1.5) 1 25 Screw (M16 x 16) 6 Seal-ring 1 26 Screw (M16 x 25) 12 Screw (M10 x 16) 6 27 Drivecase 1 13 [G1] [L1] [T1] [T5] Qty. 0066982 Unirex No. 2 0029311 [L2] 0073287 36 ft.lbs. (49 Nm) [T2] 450 ft.lbs. (610 Nm) 63 ft.lbs. (85 Nm) wc_tx000473gb.fm 87 [L3] 0070735 [T3] 88 ft.lbs. (120 Nm) Qty. [L4] Silicone [T4] 155 ft.lbs. (210 Nm) Disassembly/Reassembly—Older Machines 5.7 RT Repair Drums a 4 5 2 1 3 15 10 7 13 8 6 9 16 17 12 11 wc_gr002502 Removal: wc_tx000473gb.fm 5.7.1 Lock articulated joint. 5.7.2 Lift machine by the lifting eye using an appropriate crane or hoist. Also use jack stands (a) to support machine from underneath machine frame. 88 RT Repair Disassembly/Reassembly—Older Machines Only use steel ropes or chains for hoisting. Ropes or chains must have the suitable specified lifting capacity. Do not use improvised ropes or chains. WARNING Only use blocks or jacks with a suitable load bearing capacity. Do not use improvised blocks or jacks. WARNING 5.7.3 Loosen three M12 screws (1) and washers (2) mounting scraper bar (3) and shim (4) to drum support (5). 5.7.4 Loosen four M8 screws (6), washers (7), and nuts (8) mounting outer scraper (9) to bracket (10). Remove two M12 screws (11) and washers (12) mounting outer scraper to drum support (5). 5.7.5 Remove six M16 screws (13) holding the drum (14) to the drive housing (15). 5.7.6 Remove three M16 screws (16) and washers (17) and insert three M16 x 55 screws into the holes. Turn screws in to push drum off drive housing. Installation: 5.7.7 Mount drum (14) to drive housing (15) using M16 screws (13) . Secure screws with Loctite 243, or an equivalent medium strength threadlocking compound and torque to 155 ft.lbs. (210 Nm). 5.7.8 Install the three M16 x 16 screws (16) and washers (17) into pusher holes to plug holes and protect threads. Secure screws with Loctite 243, or an equivalent medium strength threadlocking compound and torque to 155 ft.lbs (210 Nm). 5.7.9 Mount scraper bar (3) and shim (4) to drum support (5) using M12 screws (1) and washers (2). Secure screws with Loctite 243 or an equivalent medium strength threadlocking compound and torque to 63 ft.lbs. (85 Nm). 5.7.10 Mount outer scraper (9) to drum support (5) using M12 screws (11) and washers (12). Secure screws with Loctite 243 or an equivalent medium strength threadlocking compound. 5.7.11 Mount outer scraper (9) to bracket (10) using M8 screws (6), washers (7), and nuts (8). Note: See sealant and torque reference charts in back of book for appropriate threadlocking adhesives and torque values. WARNING wc_tx000473gb.fm Before you start the machine, ensure that all tools have been removed from the machine and that replacement parts and adjusters are firmly tightened. 89 Disassembly/Reassembly—Older Machines 5.8 RT Repair Drum Support Cover See Graphic: wc_gr002503 Removal: 5.8.1 Remove drums and scrapers bars. See section Drums. 5.8.2 Using a large breaker bar remove the 1-1/4" hex nut (1) and washer (2) which holds the drum on the axle. 5.8.3 Insert three M16 x 55 screws (3) into alternating holes on hub in which drum was mounted. Turn screws in to push drum hub (4) off support cover (5). 5.8.4 Remove shaft seal (6) from support cover (5). 5.8.5 Remove the twelve M10 screws (7) holding the support cover (5) to the drum support (8). 5.8.6 Remove the three M10 screws (9) in the support cover. Into these holes insert three M10 x 55 screws. Turn screws in to push cover from drum support. Installation: Drum drive housing must be in place before assembling drum support cover. See section Drive Housing. wc_tx000473gb.fm 5.8.7 Install support cover (5) on drum support (8) using twelve M10 screws (7). Secure screws with Loctite 243, or an equivalent medium strength threadlocking compound and torque to 36 ft. lbs. (49 Nm). Install the three M10 screws (9) back into pusher holes to protect the threads. 5.8.8 Apply a bead of silicone to support cover (5) where shaft seal (6) will seat. This will help hold shaft seal in place and prevent it from spinning. Attach shaft seal to support cover. 5.8.9 Install drum hub (4) into drum support (8) with washer (2) and nut (1). Secure nut by using Loctite 243 on axle shaft threads and torque nut to 450 ft. lbs. (610 Nm). 5.8.10 Install drums and scraper bars. See section Drums. 90 RT Repair Disassembly/Reassembly—Older Machines 7 1 2 5 3 8 6 4 9 wc_gr002503 wc_tx000473gb.fm 91 Disassembly/Reassembly—Older Machines 5.9 RT Repair Drive Bearings and Seals See Graphic: wc_gr002504 Disassembly: 5.9.1 Remove drum support cover. See Section 5.4 Drum Support Cover. 5.9.2 Clean drum hub (1) of all grease. Heat bearing race (2) with propane torch. Once race is hot, use a chisel to pry race off drum hub far enough to install a puller. It may be necessary to use an oxy-acetylene torch in order to heat bearing race fast and hot enough for removal. WARNING Always wear safety glasses, gloves, and approprate clothing when dealing with heat and open flames. CAUTION: If using a torch, extreme care should be used to avoid cutting through race and damaging hub. Note: Bearing must be replaced once race is removed. 5.9.3 Remove M8 screws (3) holding retaining plate (4) and press retaining plate from support cover (5). 5.9.4 Press shaft seal (6) from the retaining plate (4). Note: Shaft seal must be replaced once it is removed. 5.9.5 Press roller bearing cage (7) and shaft seal (8) from support cover (5). Note: Shaft seal must be replaced once it is removed. Assembly: 5.9.6 Press shaft seal (8) into support cover (5). 5.9.7 Separate roller bearing into race (2) and cage (7). Pack cage portion of bearing (7) with bearing grease and press into support cover (5). 5.9.8 Press shaft seal (6) into retaining plate (4). 5.9.9 Install retaining plate (4) on support cover (5) with M8 screws (3). Secure screws using Loctite 243 or an equivalent medium strength threadlocking compound. 5.9.10 Press bearing race (2) onto drum hub (1). Note: Heating race on a hot plate or hot oil bath will make installation easier. 5.9.11 WARNING wc_tx000473gb.fm Install drum support cover. See Section 5.4 Drum Support Cover. Note: See sealant and torque reference charts in back of book for appropriate threadlocking adhesives and torque values. Before you start the machine, ensure that all tools have been removed from the machine and that replacement parts and adjusters are firmly tightened. 92 RT Repair Disassembly/Reassembly—Older Machines 2 8 1 7 4 5 6 3 wc_gr002504 wc_tx000473gb.fm 93 Disassembly/Reassembly—Older Machines RT Repair 5.10 Drive Housing See Graphic: wc_gr002505 Removal: 5.10.1 Remove drums and scrapers bars. See Section 5.3 Drums. Remove support cover. See Section 5.4 Drum Support Cover. 5.10.2 Tag and disconnect hydraulic hoses from drive motor (1). Cap or plug all open connections. Note: Machines with Item Numbers 9001 & 9003 include a brake assembly (2) on the front drum. On these machines it will also be necessary to disconnect the hydraulic line that engages the brake. 5.10.3 Remove twelve M10 screws (3) holding the drive housing (4) to the drum support (5). Note: Before removing the drive housing, add reference marks to the drum support and the drive housing. This will help align the two pieces later on and make installation easier. 5.10.4 Remove three M10 screw plugs (6) in the drive assembly flange and insert three M10 x 55 screws in their place. Turn screws in to push drive housing (4) from drum support (5). Pull complete drive housing from the drum support. Installation: Both the drive motor (1) and brake assembly (2) must be mounted to the drive housing (4) before installing it in drum support (5). See Sections 5.9 & 5.11. 5.10.5 Install drive housing (4) in drum support (5) using twelve M10 screws (3). Secure screws using Loctite 243 or an equivalent medium strength threadlocking compound and torque to 36 ft. lbs. (49 Nm). 5.10.6 Install three M10 screws (6) into pusher holes. Secure using Loctite 243 or an equivalent medium strength threadlocking compound. 5.10.7 Apply Loctite 545 or an equivalent hydraulic sealant to hydraulic fittings and connect hydraulic lines to drive motor (1) and brake (2). 5.10.8 Clean inside of drum hub (7) and tapered end of axle. For Installation, see Section 5.4 Drum Support Cover. 5.10.9 Check oil level in drive housing. WARNING wc_tx000473gb.fm Note: See sealant and torque reference charts in back of book for appropriate threadlocking adhesives and torque values. Before you start the machine, ensure that all tools have been removed from the machine and that replacement parts and adjusters are firmly tightened. 94 RT Repair Disassembly/Reassembly—Older Machines 7 2 4 5 1 wc_gr002505 6 3 wc_tx000473gb.fm 95 Disassembly/Reassembly—Older Machines RT Repair 5.11 Changing Oil See Graphic: wc_gr002506 The drum drive case is lubricated in an oil bath. To drain oil: 5.11.1 Remove drum from the drive housing side of machine (see section Drums). On the front of the machine this will be the right side, and on the rear of the machine the left side. 5.11.2 Remove fill plug (b) for venting. 5.11.3 Remove drain plug (c) and drain oil from drum. Note: In the interests of environmental protection, place a plastic sheet and a container under the machine to collect the liquid which drains off, and dispose of properly. To add oil: 5.11.4 Install drain plug (c). 5.11.5 Remove level plug (a). 5.11.6 Add SAE 10W30 oil at fill plug until oil flows out of level plug opening. Replace plugs. Total Capacity: 8 oz. (240 ml). 5.11.7 wc_tx000473gb.fm Install fill plug (b). 96 RT Repair Disassembly/Reassembly—Older Machines b a c wc_tx000473gb.fm wc_gr002506 97 Disassembly/Reassembly—Older Machines RT Repair 5.12 Drive Housing Assembly 33 34 13[L1,T2] 2 11 3[L1,T1] 1 12 10 9 14 15 8 5 [L3] 4 [L1,T3] 16 17 16 19 20 21 18 [L1,T5] 50 51 52 27 53 54 31 23 6 30 29 [L2] 28 [L1,T4] 32 [L1,T4] 35 wc_gr002507 wc_tx000473gb.fm 98 RT Repair Disassembly/Reassembly—Older Machines 5.13 Drive Housing Components Ref. Description Ref. Description 1 Brake assembly 1 18 Screw (M8x18) 5 2 Washer 6 19 Seal-shaft 1 3 Screw (M6x90) 6 20 Retaining ring 1 4 Screw (3/8-16x1) 1 21 Gear-drum drive 1 5 Cover-gear 1 22 Retaining ring 1 6 Axle-drive 1 23 Bearing-roller 1 7 Key 1 24 Seal-shaft 1 8 Washer 1 25 Set-plug 3 9 Gear-pinion 1 26 O-Ring 3 10 Motor-hydraulic drive 1 27 Housing-drive 1 11 Fitting-elbow 1 28 Screw (M10x20) 12 12 O-Ring 1 29 Seal-shaft 1 13 Screw (M12x 70) 2 30 Spacer-ring 1 14 O-Ring 2 31 Key 1 15 Fitting 1 32 Screw (M10x16) 3 16 O-Ring 2 33 Screw (M6x15) 6 17 O-Ring 1 34 Cover-brake 1 [L1] 0029311 [T1] 7 ft.lbs. (9 Nm) [T5] 18 ft.lbs. (25 Nm) wc_tx000473gb.fm Qty. [L2] Silicone [T2] 90 ft.lbs. (122 Nm) [L3] 0070735 [T3] 43 ft.lbs. (58 Nm) 99 Qty. [T4] 36 ft.lbs. (49 Nm) Disassembly/Reassembly—Older Machines RT Repair 5.14 Brake See Graphic: wc_gr002508 The brake is located on the front drum only and is mounted to the gear cover of the drivecase. To remove the brake the complete drive housing must be removed from the drum support. Removal: 5.14.1 Remove drums from roller. See section Drums. 5.14.2 Remove drive housing from drum support. See section Drive Housing. 5.14.3 Remove the six M6 screws (1) and washers (2) holding brake assembly (3) and remove brake assembly from drive housing. Installation: 5.14.4 Apply Loctite 515 gasket compound to face of gear cover (4) where brake mounts (a). 5.14.5 Mount the brake assembly (3) with six M6 screws (1) and washers (2). Apply Loctite 271 or an equivalent high strength threadlocker to screws, and torque to 7 ft.lbs. (9 Nm). 5.14.6 Position hydraulic fitting (5) on brake as shown. 5.14.7 Install drive housing to drum support. See section Drive Housing. WARNING wc_tx000473gb.fm Note: See sealant and torque reference charts in back of book for appropriate threadlocking adhesives and torque values. Before you start the machine, ensure that all tools have been removed from the machine and that replacement parts and adjusters are firmly tightened. 100 RT Repair Disassembly/Reassembly—Older Machines 2 1 a 3 4 5 wc_gr002508 wc_tx000473gb.fm 101 Disassembly/Reassembly—Older Machines RT Repair 5.15 Servicing Brake See graphic: wc_gr002509 Disassembly: 5.15.1 Remove fitting (20). 5.15.2 Remove retaining ring (6) and pull gear (7) off shaft. 5.15.3 Remove three M6 screws (21) which hold the brake assembly together. Note: When removing last screw, rear housing may "pop" off front housing due to spring tension. 5.15.4 Disassemble interior pieces (12–16). 5.15.5 Remove retaining ring (11) from front housing (8) and press out ball bearing (10). 5.15.6 Remove seal (9). 5.15.7 Remove retaining ring (17) from rear housing (19) and press out ball bearing (18). Assembly: 5.15.8 Press bearings (10 & 18) into front and rear housings and secure in place using retaining rings (11 & 17). 5.15.9 Install seal (9) into front housing (8). 5.15.10 Insert ring spacer (12) into front housing. 5.15.11 Set front housing on face and insert spring (13), O-rings (14), shaft (16) and locking plate (15). 5.15.12 Secure rear housing assembly to front housing with three M6 screws (21). Secure screws using Loctite 243 or an equivalent medium strength threadlocking compound, and torque to 7 ft.lbs. (9 Nm). 5.15.13 Install fitting (20) to rear housing assembly. 5.15.14 Install gear (7) on shaft and secure with retaining ring (6). WARNING wc_tx000473gb.fm Note: See sealant and torque reference charts in back of book for appropriate threadlocking adhesives and torque values. Before you start the machine, ensure that all tools have been removed from the machine and that replacement parts and adjusters are firmly tightened. 102 RT Repair Disassembly/Reassembly—Older Machines 20 19 21 18 17 16 14 22 13 12 8 14 15 11 7 9 10 6 wc_tx000473gb.fm wc_gr002509 103 Disassembly/Reassembly—Older Machines RT Repair 5.16 Drive Motor See Graphic: wc_gr002510 The drive motor is mounted to the gear cover of the drive housing. When replacing the drive motor, the complete drive housing must be removed from the drum support. Removal: 5.16.1 Remove drums from roller. See section Drums. 5.16.2 Remove drive housing from the drum support. See section Drive Housing. 5.16.3 Loosen two M12 screws (1) and remove the hydraulic drive motor (2). 5.16.4 Use a small propane torch and heat the countersunk screw (3) holding the drive pinion gear (4) to the motor. This will break down the threadlocking sealant. Remove screw and washer (5), and pull drive pinion gear off motor. Installation: 5.16.5 Install drive pinion gear (4) onto motor shaft with washer (5) and screw (3). Secure screw with Loctite 271 or an equivalent high strength threadlocking compound. 5.16.6 Apply Loctite 515 gasket compound to face of gear cover where drive motor mounts (a). 5.16.7 Mount hydraulic drive motor (2) with two M12 screws (1). Secure screws with Loctite 243 or an equivalent medium strength threadlocking compound and torque to 90 ft.lbs. (122 Nm). 5.16.8 Align the hydraulic fittings (b) as shown. Note: Failure to align fittings properly could make it difficult to connect hydraulic lines after drive assembly is installed. 5.16.9 Install Drive housing. See section Drive Housing. Seal Kit: 5.16.10 Order Seal Kit P/N 76630 for replacement of internal motor seals and O-rings. Refer to installation instructions included with kit. Note: Special knowledge and skill is required when working on hydraulic components. If you are lacking the necessary skills and know-how, contact a competent hydraulic repair facility for assistance. wc_tx000473gb.fm 104 RT Repair Disassembly/Reassembly—Older Machines 1 18 17 4 5 3 2 a 2 b wc_gr002510 wc_tx000473gb.fm 105 Disassembly/Reassembly—Older Machines RT Repair 5.17 Drive Housing Components See Graphic: wc_gr002511 Disassembly: 5.17.1 Remove drums from roller. See section Drums. 5.17.2 Remove drive housing from the drum support. See section Drive Housing. 5.17.3 Drain oil from drive housing. See section Changing Oil. 5.17.4 Remove drive motor (see section Drive Motor) and brake assembly (see section Brake) from drive housing. 5.17.5 Loosen the five M8 screws (6) and lift gear cover (7) from drive housing (8). 5.17.6 Press shaft seal (9) from gear cover. 5.17.7 Remove retaining ring (10) holding gear (11) to drive axle (12). Use three M12 x 90 hardened bolts (c) (P/N 11411) to push drive gear from drive housing and off of drive axle. If necessary, heat gear to aid in its removal. 5.17.8 Remove key (13) from drive axle (12) and pull axle from drive housing (8). If necessary, use three M16 x 55 screws (d) (P/N 11518) to push axle from drive housing. 5.17.9 Remove retaining ring (14) and press roller bearing cage (15) from drive housing (8). 5.17.10 Remove seals (16 & 17) from drive housing (8). 5.17.11 Remove key (18) from drive axle (12). 5.17.12 Use a small propane torch and heat inner bearing race (19) and spacer (20) sufficiently until they drop off axle. wc_tx000473gb.fm 106 RT Repair Disassembly/Reassembly—Older Machines 7 11 10 9 14 16 8 15 6 21 17 18 20 19 12 13 c d wc_gr002511 wc_tx000473gb.fm 107 Disassembly/Reassembly—Older Machines RT Repair (Drive Housing Components continued) See graphic: wc_gr002512 Assembly: 5.17.13 Heat spacer ring (20) on a hot plate or in oil bath and press onto drive axle (12). 5.17.14 Heat roller bearing race (19) and press onto drive axle. 5.17.15 Press shaft seal (16) into drive housing (8). 5.17.16 Apply a bead of silicone to area on drive housing (a) where wiper seal (17) will seat. Install seal on housing. 5.17.17 Apply a thin film of low-temp #2 grease to drive axle (b) to trap any excess dust. 5.17.18 Press bearing cage (15) in drive housing. Secure it to axle with retaining ring (14). 5.17.19 Slide axle into drive housing carefully to avoid damaging seal (16). 5.17.20 Place key (13) in drive axle. 5.17.21 Slide bearing washer (21) over axle and onto bearing. 5.17.22 Heat drive gear (11) for approximately one half hour in a 350° oven and then press it onto axle (12). 5.17.23 Attach retaining ring (10) to secure drive gear on axle. 5.17.24 Press shaft seal (9) into gear cover (7). 5.17.25 Apply Loctite 515 or an equivalent gasket compound to machined faces (c) of drive housing (8), as shown. 5.17.26 Mount gear cover (7) to drive housing (8) using five M8 screws (6). Secure screws with Loctite 243 or an equivalent medium strength threadlocking compound and torque to 18 ft.lbs (24 Nm). 5.17.27 Install drive motor and brake. See sections Drive Motor and Brake. 5.17.28 Add 8 oz. of SAE 30W oil to drivecase through fill plug opening. See section Changing Oil. 5.17.29 Install complete drive housing in drum support. See section Drive Housing. Re-check oil level. WARNING wc_tx000473gb.fm Note: See sealant and torque reference charts in back of book for appropriate threadlocking adhesives and torque values. Before you start the machine, ensure that all tools have been removed from the machine and that replacement parts and adjusters are firmly tightened. 108 RT Repair Disassembly/Reassembly—Older Machines 12 13 14 21 a c 15 17 16 19 20 b 8 11 9 12 10 7 6 wc_gr002512 wc_tx000473gb.fm 109 Disassembly/Reassembly—Older Machines RT Repair 5.18 Exciter Assembly Exploded View 7 15 12 14 16 11 6 [L1] 7 5 5 12 17 16 19 15 13 11 4 3 2 39 [L3, T1] 7 1 [L1] 40 6 [L1] 9 [L2,T1] 10 25 [L2, T2] 26 [L4, T1] 27 20 [L2,T2] 21 [L3] 22 23 [L3] 24 [L3, T3] 27 29 31 34 30 26 [L4, T1] 28 22 33 32 35 [L5, T1] 36* 36* 32 38 [L5, T4] wc_gr002513 wc_tx000473gb.fm 110 RT Repair Disassembly/Reassembly—Older Machines 5.19 Exciter Assembly Components See Graphic wc_gr002513 Ref. Description Qty. Ref. Description 1 Fitting-elbow 2 1 21 Cover 2 O-Ring 1 22 Bearing-roller 4 3 O-Ring 1 23 Cover-exciter base 1 4 Motor-hydraulic gear 1 24 Screw (M6x10) 10 5 Key-Woodruff 1 25 Screw (M8x16) 13 6 Fitting-elbow 2 26 Plug (M26x1.5) 2 7 O-Ring 2 27 Seal-ring 2 8 O-Ring 2 28 Cover-exciter gear 1 9 Screw (M10x25) 2 29 Retaining ring 2 10 Washer-lock 2 30 Gear-exciter 2 11 Coupling-flexshaft 1 31 Retaining ring-internal 2 12 Setscrew (5/16"x5/8) 2 32 Weight-variable 2 13 Sleeve-coupler 1 33 Shaft-exciter 2 14 Retaining ring-external 1 34 Key 2 15 Bearing-roller 2 35 Screw (M10x30) 4 16 Retaining ring-internal 2 36 Mount-weight 2 17 Spacer-bearing 1 37 Weight-exciter 4 18 Key-Woodruff (¼x1) 1 38 Screw (M16x70) 4 19 Gear-pinion 1 39 Screw (M10x12) 1 20 Screw (M8x18) 12 40 Seal-ring 1 [L1] 0079356 [T1] 36 ft.lbs. (49 Nm) wc_tx000473gb.fm [L2] 0029311 [T2] 18 ft.lbs. (24 Nm) [L3] 0070735 [T3] 7 ft.lbs. (10 Nm) 111 Qty. [L4] 0073287 [T4] 155 ft.lbs. (210 Nm) Disassembly/Reassembly—Older Machines RT Repair 5.20 Introduction This section covers disassembly and assembly of the complete exciter assembly, including replacement of gears, bearings, exciter motor, and motor coupling. CAUTION: Due to the high rpm and vibration present in this component during operation, it is important to follow sealant and torque notes carefully during assembly. 5.21 Oil Requirements See Graphic: wc_gr002516 The exciter bearings and gears run in an oil bath and are splash lubricated. When servicing exciter be sure to check oil level (a) before installing it back into drum. Note: Although oil can be added through the oil level plug, it is easier to add oil before attaching the base cover during reassembly. Capacity: 32 oz. (1000 ml) SAE 30W. a wc_gr002516 wc_tx000473gb.fm 112 RT Repair Disassembly/Reassembly—Older Machines 5.22 Exciter See Graphic: wc_gr002517 Removal: Note: The exciter is installed in the drum using threadlocking compounds to secure screws. Heat screws before removal, using a small propane torch, to break down the threadlocking compound. 5.22.1 Remove drum, drum support cover, and drive housing assembly. See sections Drums, Drum Support Cover, and Drive Housing. 5.22.2 Tag and disconnect hydraulic lines from exciter motor. Cap and plug open connections. 5.22.3 Remove eight M12 screws (1) holding the exciter assembly (2) to the drum support (3). 5.22.4 Lift exciter assembly up and out of drum. Installation: 5.22.5 Double check oil level. Add or drain oil as required. 5.22.6 Install exciter assembly (2) in drum support (3) using eight M12 screws (1). Secure screws using Loctite 271, or an equivalent high strength threadlocking compound, and torque bolts to 88 ft. lbs. (120 Nm). 5.22.7 Connect hoses to fittings on exciter motor. 5.22.8 Install drum, drum support cover, and drive housing assembly. See sections Drums, Drum Support Cover, and Drive Housing. Note: See sealant and torque reference charts in back of book for appropriate threadlocking adhesives and torque values. WARNING Before you start the machine, ensure that all tools have been removed from the machine and that replacement parts and adjusters are firmly tightened. 3 2 1 wc_gr002517 wc_tx000473gb.fm 113 Disassembly/Reassembly—Older Machines RT Repair 5.23 Exciter Exploded View 41 25 21 28 23 20 24 26 29 31 34 30 22 33 35 36 37 38 wc_gr002518 wc_tx000473gb.fm 114 RT Repair Disassembly/Reassembly—Older Machines 5.24 Exciter Disassembly See Graphic: wc_gr002518, wc_gr002519, wc_gr002520 Note: The exciter is assembled using threadlocking compounds to secure bolts and screws. Heat screws before removal, using a small propane torch, to break down the threadlocking compound. 5.24.1 Remove drum, drum support cover, and drive housing assembly. See sections Drums, Drum Support Cover, and Drive Housing. 5.24.2 Remove drain plug (26) from exciter gear cover (28) and drain oil. 5.24.3 Remove exciter assembly from drum support. See section Exciter. Note: In the interests of environmental protection, place a plastic sheet and a container under the exciter to collect the liquid which drains off, and dispose of properly. 5.24.4 Invert exciter housing (41) and remove ten M6 screws (24) holding the bottom base cover (23) to the exciter housing. Remove bottom base cover. 5.24.5 Rotate exciter shafts (33) to gain access to weights (37). The exciter weights can rotate freely. Use caution when removing weights to prevent pinching fingers or hands inside exciter housing. CAUTION 5.24.6 Use a small propane torch and heat four M10 screws (35) securing mount (36) to weights (37). Remove screws and mount. 5.24.7 Heat four M16 screws (38) holding the weights (37) to shafts (33). This will break down the threadlocking compound. Remove screws and weights. 5.24.8 Remove thirteen M8 screws (25) holding exciter gear cover (28) to housing (41). 5.24.9 Remove retaining rings (29) holding exciter gears (30) to shafts. 5.24.10 Insert three M10 x 55 pusher bolts into threaded holes (a) on exciter gear (30). Turn bolts in until exciter gear is pushed free from housing. Repeat for other gear. 5.24.11 Remove keys (34) from exciter shafts (33). 5.24.12 Remove large retaining rings (31) which secure gear side bearings (22) in housing (41). 5.24.13 From other side of exciter housing, loosen the M8 screws (20) and remove covers (21) from housing (41). 5.24.14 Press or use a rubber mallet to drive exciter shaft (33) and bearing (22) all the way through housing as shown (b). Remove variable weight (32) as shaft slides through housing. Repeat for other shaft. 5.24.15 Press remaining shaft bearings (22) from housing. wc_tx000473gb.fm 115 Disassembly/Reassembly—Older Machines RT Repair b 33 a 32 22 41 29 wc_gr002519 29 30 31 33 22b 41 22a b 21 22b 20 32 a wc_gr002520 wc_tx000473gb.fm 116 c RT Repair Disassembly/Reassembly—Older Machines 5.25 Exciter Assembly See Graphic: wc_gr002520 and wc_gr002521 5.25.1 Lightly lubricate each exciter shaft (33) with 10W30 and press inner bearing races (22a) onto both ends of shafts. 5.25.2 Install bearing cage (22b) into exciter housing (41). Outer edge of cage should be flush with outer machined surface of housing. 5.25.3 Apply Loctite 515 or an equivalent gasket compound to cover (21), and fasten to housing (41) using 5 M8 screws (20). Secure screws using Loctite 243 or an equivalent medium strength threadlocking compound, and torque to 18 ft.lbs. (24 Nm). 5.25.4 Coat inside of weight (32) with oil. Insert shaft (33) into housing, sliding it through weight (32), and into bearing (22b). 5.25.5 Press bearing cage (22b) into gear side of housing and secure it in place with retaining ring (31). 5.25.6 Repeat procedure for other shaft. 5.25.7 With keyways (a) pointing up, install keys (34) and place gears (30) onto shafts (33). Note: Gears must be “timed”. To time gears, insert four M10 screws into upper push holes (b), lay a straight edge (c) across both gears at screws and align screws to straight edge. The screws must line up within one gear tooth of each other as shown. Both shaft keys must be facing up (a). 5.25.8 Secure gears on shafts with retaining rings (29). Note: Complete steps 9 through 14 with exciter casing inverted as shown. 5.25.9 Slide free weights (32) to center of exciter shafts (33). 5.25.10 Mount fixed weights (37) to exciter shaft (33) with M16 screws (38). Secure screws using Loctite 271, or an equivalent high strength threadlocker, and torque to 155 ft.lbs. (210 Nm). Note: The holes in the shafts are chamfered on one end. Install weights so bolts will thread into chamfered end. 5.25.11 Secure weight mounts (36) to weights (37) with M10 screws (35). Secure screws using Loctite 271, or an equivalent high strength threadlocker, and torque to 36 ft.lbs. (49 Nm). CAUTION: For proper machine performance, it is essential that weight mounts (36) be mounted correctly. Fasten weight mounts as shown. 5.25.12 Add 32 oz. (946 ml) of 10W30 to exciter housing through base opening. wc_tx000473gb.fm 117 Disassembly/Reassembly—Older Machines RT Repair 5.25.13 Apply Loctite 515 or equivalent gasket compound to base of exciter (d). 5.25.14 Mount exciter base cover to housing (41) with M6 screws. Secure screws using Loctite 243, or an equivalent medium strength threadlocker, and torque to 7 ft.lbs. (10 Nm). 5.25.15 Apply Loctite 515, or equivalent gasket compound, to machined face (e) of exciter gear cover (28). CAUTION: Be sure to coat around entire face of cover including around holes to prevent exciter from leaking. 5.25.16 Install M26 plugs (26) and seal rings (27) into gear cover (28). Secure plugs using Loctite 222, or an equivalent low strength threadlocker, and torque to 36 ft.lbs. (49 Nm). 5.25.17 Mount cover (28) to housing (41) with M8 screws (25). Secure screws using Loctite 243, or an equivalent medium strength threadlocker, and torque to 18 ft.lbs. (24 Nm). 5.25.18 Install exciter assembly in drum support. See section Exciter. wc_tx000473gb.fm 118 RT Repair Disassembly/Reassembly—Older Machines 35 d 36 28 25 32 26 27 37 41 e 37 38 wc_gr002521 wc_tx000473gb.fm 119 Disassembly/Reassembly—Older Machines RT Repair 5.26 Exciter Motor, Coupling, & Pinion Gear 19 18 15a 15a 17 12a 14 11a 15b 16 15b 13 41 26 28 11 9 10 23 wc_gr002522 15a b 15a wc_gr002523 wc_tx000473gb.fm 120 RT Repair Disassembly/Reassembly—Older Machines 5.27 Exciter Motor, Coupling, & Pinion Gear Removal See Graphic: wc_gr002522 and wc_gr002523 Replacement of the exciter pinion gear, bearings, and coupling requires removal of the exciter assembly from the drum support. Replacement, or service, to only the exciter motor can be performed by removing the drum support cover (see section Drum Support Cover) to gain access to the motor. 5.27.1 Remove drum, drum support cover, and drive housing assembly. See sections Drums, Drum Support Cover, and Drive Housing Assembly. 5.27.2 Remove exciter assembly from drum support. See section Exciter. Refer to section Exciter Components when completing steps 3, 4 & 5. 5.27.3 Remove drain plug (26) and drain oil. 5.27.4 Remove exciter base cover (23). 5.27.5 Remove exciter gear cover (28). 5.27.6 Remove two screws (9) and washers (10) mounting exciter motor (4) to exciter housing (41). 5.27.7 Pull sleeve coupler (13) from inner coupling (11a) on pinion gear shaft (19). 5.27.8 Reach through bottom of exciter housing and loosen set screw (12a) holding inner coupling (11a) to pinion gear shaft (19). Remove inner coupling by prying off with large screw driver or gear puller. 5.27.9 Remove retaining ring (14). 5.27.10 Remove key (18) from pinion gear shaft (19) in housing. 5.27.11 Use a press or rubber mallet to drive pinion gear (19) out of housing. Note: The roller bearings (15a) will remain in the housing. 5.27.12 Remove spacer (17) and bearing race (15b) from pinion gear shaft. 5.27.13 Drive roller bearing (15a) out of housing using a rubber mallet and steel punch as shown (b). The bearing will be damaged or destroyed in the process and must be replaced. 5.27.14 Remove retaining rings (16) from housing. 5.27.15 Press remaining bearing (15a) from housing. wc_tx000473gb.fm 121 Disassembly/Reassembly—Older Machines RT Repair 5.28 Exciter Motor, Coupling, & Pinion Gear Installation See Graphic: wc_gr002523 and wc_gr002524 5.28.1 Press bearing race (15b) on pinion gear shaft (19). 5.28.2 Install retaining rings (16) in housing. 5.28.3 Press both roller bearing cages (15a) into housing against retaining rings. 5.28.4 Slide spacer (17) onto pinion gear shaft (19). 5.28.5 Slide pinion gear shaft into housing and through roller bearings as shown (c). 5.28.6 Face exciter housing down so pinion gear (19) is resting against a solid surface. Press remaining bearing race (d) over shaft until it rests against spacer (17). 5.28.7 Install retaining ring (14). 5.28.8 Install woodruff key (18) on pinion gear shaft (19). 5.28.9 Install coupling (11a) onto pinion gear shaft with rubber mallet. Apply Loctite 243, or an equivalent medium strength threadlocker to set screw (12a) in coupling and tighten set screw against shaft. 5.28.10 Slide flex-coupling (13) onto coupling (11a). 5.28.11 Place key (5) onto shaft of exciter motor (11) and install coupling (11b). Apply Loctite 243, or an equivalent medium strength threadlocker to set screw (12b) in coupling and tighten it against shaft. 5.28.12 Mount exciter motor (11) on exciter housing (41) with lockwashers (10) and M10 screws (9). Secure screws using Loctite 243, or an equivalent medium strength threadlocker, and torque to 36 ft.lbs. (49 Nm). Refer to section Exciter Components when completing steps 13 & 14. 5.28.13 Mount exciter gear cover (28). 5.28.14 Mount exciter base cover (23). 5.28.15 Install exciter assembly in drum support. See section Exciter. wc_tx000473gb.fm 122 RT Repair Disassembly/Reassembly—Older Machines d 14 12a 18 15a 5 16 15a 12b 16 c 19 17 11a 13 11b 15b wc_gr002524 wc_tx000473gb.fm 123 Disassembly/Reassembly—Older Machines RT Repair 5.29 Exciter Motor Seal Kit: Order Seal Kit P/N 80500 for replacement of internal motor seals and O-rings. Refer to installation instructions included with kit. Note: Special knowledge and skill is required when working on hydraulic components. If you are lacking the necessary skills and know-how, contact a competent hydraulic repair facility for assistance. Indexing Fittings: All hydraulic fittings should be installed on motor before assembly onto exciter. Fittings must be installed as shown to ensure proper connection of hoses inside drum. 15˚ 45˚ a a b b wc_gr002527 wc_gr002525 5.30 Shockmounts See Graphic: wc_gr0002527 Each drum support is shockmounted to the machine frame at six places, two at the outer mount (a) and four at the inner mounts (b). Inspect shockmounts at regular intervals for damage and wear. Replace shockmounts that are torn or split. The shockmounts isolate and protect the frame and upper components from excessive vibration. Running the machine with damaged shockmounts can cause wiring connections to weaken and may eventually damage other components. When replacing shockmounts it is recommended that both the left and right sides be done at the same time. wc_tx000473gb.fm 124 RT Repair Disassembly/Reassembly—Older Machines 5.31 Shockmount Assembly 1 5 [L1, T1] 6 2 [L1] 9 [L1] 8 7 [L1] 3 [L1, T1] 6 10 wc_gr002526 4 5 Ref. Description Qty. Ref. 1 Frame-rear 1 6 Screw (M12x25) 24 2 Drum support 1 7 Bracket-shockmount 4 3 Spacer 6 8 Setscrew (M12x30) 12 4 Shock mount 6 9 Stud-shock mount 6 5 Washer-lock 24 10 Mount-scraper support 4 [L1] 0029311 [T1] 63 ft.lbs. (85 Nm) wc_tx000473gb.fm 125 Qty. Disassembly/Reassembly—Older Machines RT Repair 5.32 Replacing Outer Shockmounts See Graphic: wc_gr002528 Removal: 5.32.1 Remove three M12 screws (6) and washers (5) holding the shockmount bracket (7) to the frame and one screw and washer holding bracket to shockmount (4). Remove bracket. 5.32.2 Grasp the shockmount (4) with a large channel-lock pliers or a strap wrench and twist it until it breaks free from the spacer (3). 5.32.3 Remove shockmount (4) and scraper support mount (10). Note: If the shockmount is difficult to remove, remove spacer with the shockmount attached. 5.32.4 Use a two-inch open end wrench, with extension, to loosen spacer (3) from the stud (9). If necessary, heat spacer using a small propane torch to break down threadlocking compound. Note: To remove shockmount from spacer, place spacer in vise (a) and turn it free. 5.32.5 The shockmount studs (9) are slotted and can be removed using a large screwdriver (b). Heat studs thoroughly to break down threadlocking sealant. Installation: 5.32.6 If replacing shockmount stud (9), apply Loctite 243, or an equivalent medium strength threadlocking compound, to threads on stud. Screw stud into frame until it protrudes equally on either side (x). 5.32.7 Screw shockmount spacer (3) onto stud (9) until tight. 5.32.8 Install setscrew into shockmount spacer (3). Secure setscrew using Loctite 243 or an equivalent medium strength threadlocking compound. 5.32.9 Slide scraper support mount (10) over setscrew. 5.32.10 Install shockmount (4) onto setscrew. Secure shockmount using Loctite 243 or an equivalent medium strength threadlocking compound. 5.32.11 Mount shockmount bracket (7) to shockmount (4) and frame with screws (6) and washers (5). Secure screws using Loctite 243 or an equivalent medium strength threadlocking compound and torque to 63 ft.lbs. (85 Nm). Note: See sealant and torque reference charts in back of book for appropriate threadlocking adhesives and torque values. wc_tx000473gb.fm 126 RT Repair Disassembly/Reassembly—Older Machines Before you start the machine, ensure that all tools have been removed from the machine and that replacement parts and adjusters are firmly tightened. WARNING 3 7 6, 5 a 4 10 X 9 wc_tx000473gb.fm X b wc_gr002528 127 Disassembly/Reassembly—Older Machines RT Repair 5.33 Replacing Inner Shockmounts See Graphic: wc_gr002546 and wc_gr002526 Removal: 5.33.1 Lock articulated joint. See section Articulated Joint Locking Bar. 5.33.2 Support machine with appropriate crane or hoist by the lifting eye (c). WARNING Only use steel ropes or chains for hoisting. Ropes or chains must have the suitable specified lifting capacity. Do not use improvised ropes or chains. 5.33.3 Loosen (do not remove) M12 screws (6) holding outer shockmount (d) to the shockmount bracket (7). 5.33.4 Remove M12 screws (6) holding the inner shockmounts (e) to the frame. 5.33.5 Slowly raise machine and allow drum support to pivot down as shown in illustration. Position machine and drum support as needed to access inner shockmounts and spacers. CAUTION: Avoid straining hydraulic hoses. Lift machine only high enough to remove shockmounts. Installation: Remove and install shockmounts and spacers. See section Replacing Outer Shockmounts. 5.33.6 Lower machine and position support drum to align shockmounts with holes in frame. 5.33.7 Mount shockmount (4) to frame with M12 screw (6) and washer (5). Secure screw using Loctite 243 or an equivalent medium strength threadlocking compound and torque to 36 ft.lbs. (49 Nm). 5.33.8 Tighten screws (6) mounting outer shockmount bracket (7) to shockmount (4) and torque to 63 ft.lbs. (85 Nm). WARNING wc_tx000473gb.fm Note: See sealant and torque reference charts in back of book for appropriate threadlocking adhesives and torque values. Before you start the machine, ensure that all tools have been removed from the machine and that replacement parts and adjusters are firmly tightened. 128 RT Repair Disassembly/Reassembly—Older Machines 5 [L1, T1] 6 2 [L1] 9 [L1] 8 7 [L1] 3 [L1, T1] 6 10 wc_gr002526 4 5 c d e wc_gr002546 wc_tx000473gb.fm 129 Disassembly/Reassembly—Older Machines RT Repair 5.34 Hydraulic Hose Clamps 2 [L1] 12 3 4 5 6 3 [L1] 1 6 2 12 3 7 [L1] 1 9 [L1] 1 [L1] 1 2 3 11 10 6 13 wc_gr002547 wc_tx000473gb.fm 130 RT Repair Disassembly/Reassembly—Older Machines 5.35 Hydraulic Hose Clamp Components See Graphic: wc_gr002547 Ref. Description Ref. Description 1 Screw M8 x 60 6 8 Screw M8 x 20 1 2 Washer 6 9 Clamp-hose 1 3 Nut-lock M6 7 10 Adapter-clamp 1 4 Plate-clamping 2 11 Plate-clamping 2 5 Clamp-hose 1 12 Plate-clamping 2 6 Screw M6 x 50 7 13 Clamp-hose 1 7 Guard-hose 1 -- -- -- [L1] 0029311 Qty. Qty. [L2] 0070735 5.36 Drum Supports See Graphic:wc_gr002548 The drum supports (a) contain both the exciter and drive assemblies, as well as all the connecting piping for the drive and exciter motors. Before removing the drum support it will be neccesary to first remove both the drum support cover and drive housing assembly to gain access to the hydraulic piping inside. To ease installation of hydraulic hoses and fittings later on, make note of their orientation, placement and position. Cap and plug all open connections to prevent contamination from entering hydraulic system. a wc_tx000473gb.fm wc_gr002548 131 Disassembly/Reassembly—Older Machines RT Repair 5.37 Drum Support Exploded View 1 6 3 9 12 11 5 7 8 10 13 4 6 5 2 wc_gr002549 wc_tx000473gb.fm 132 RT Repair Disassembly/Reassembly—Older Machines 5.38 Replacing Drum Supports See Graphic: wc_gr002549 Removal: 5.38.1 Lock articulated joint. See section Articulated Joint Locking Bar. 5.38.2 Support machine by lifting eye (1), using an appropriate crane or hoist. WARNING Only use steel ropes or chains for hoisting. Ropes or chains must have the suitable specified lifting capacity. Do not use improvised ropes or chains. 5.38.3 Remove drums (2). See section Drums. 5.38.4 Remove drum support cover (3). See section Drum Support Cover. Disconnect hydraulic lines from drive motor and brake assembly if applicable. Cap or plug open connections. 5.38.5 Remove drive housing assembly (4). See section Drive Housing. Disconnect hydraulic hoses from exciter motor and cap or plug open hoses and fittings. 5.38.6 Remove screws (5) and washers (6) holding the shockmounts and brackets to the frame. 5.38.7 Remove two M8 screws (7) and washers (8) holding the hose clamps (9) to the drum support (10). 5.38.8 Remove hose guard (11) from drum support. 5.38.9 Loosen slightly, but do not remove, two M16 screws (12) which hold the rear hose clamps (9) together. This will allow hoses to slide easily through clamps and act as a guide when pulling them out of the drum support. Repeat for front drum clamps (13). 5.38.10 Slowly raise machine and carefully guide hydraulic hoses out of the drum support. Installation: 5.38.11 Install shockmounts on drum support (10). See sections Replacing Inner Shockmounts and Replacing Outer Shockmounts. 5.38.12 Place drum support under raised machine. Insert hydraulic lines through openings and lower machine over drum support. 5.38.13 Secure machine frame to shockmounts with screws (5) and washers (6). Secure screw using Loctite 243 or an equivalent medium strength threadlocking compound and torque to 36 ft.lbs. (49 Nm). 5.38.14 Apply Loctite 545 hydraulic sealant, or equivalent, to fittings on exciter drive motor and attach hydraulic hoses. 5.38.15 Install drive housing assembly (4) and connect hydraulic lines to drive motor. See section Drive Housing. wc_tx000473gb.fm 133 Disassembly/Reassembly—Older Machines RT Repair 5.38.16 With all hydraulic hoses connected, tighten hose clamps (9, 13) around hoses. Install hose clamps to drum supports with screws (7) and washers (8) and attach hose guard (11). Secure screws using Loctite 243 or an equivalent medium strength threadlocking compound. 5.38.17 Install drum support cover (3) and drums (2). See section Drum Support Cover and section Drums. WARNING Note: See sealant and torque reference charts in back of book for appropriate threadlocking adhesives and torque values. Before you start the machine, ensure that all tools have been removed from the machine and that replacement parts and adjusters are firmly tightened. 5.39 Articulated Joint and Steering Cylinder Exploded View 1 [T1] 2 3 4 5 6 7 11 12 11 12 16 13 13 14 7 6 15 17 4 1 [T1] 4 5 3 2 9 8 [L1, T2] 10 wc_tx000473gb.fm wc_gr002550 134 RT Repair Disassembly/Reassembly—Older Machines 5.40 Articulated Joint and Steering Cylinder Components See Graphic: wc_gr002550 Ref. Description 1 Nut-lock (M16) 2 Ref. Description 2 11 Screw (M12x20) 2 Washer 2 12 Washer 2 3 Bearing-ball 2 13 Fitting-hydraulic 2 4 Fitting-grease 6 O-Ring 2 5 Bracket-pivot 2 O-Ring 2 6 Pin-pivot 2 14 Hose assembly 1 7 Screw (M16x90) 2 15 Hose assembly 1 8 Screw (M12x40) 8 16 Bearing 2 9 Access cover 1 17 Cylinder-hydraulic 1 10 Screw (M8 x 16) 4 [L1] 0029312 [T1] 155 ft.lbs. (210 Nm) Qty. Qty. [T2] 94 ft. lbs. (128 Nm) a b c wc_gr002551 wc_tx000473gb.fm 135 Disassembly/Reassembly—Older Machines RT Repair 5.41 Replacing Articulated Joint See Graphic: wc_gr002551and wc_gr002552 Prior to removal: 5.41.1 Remove scraper bars and drums from both right and left sides of the rear half of machine. See section Drums. 5.41.2 Start machine and position machine as if turning left (a). This will help gain access to articulated joint at point (b). Once in this position, turn machine off. 5.41.3 Support each drum, both front and rear, with screw jacks (c) or blocking. Only use blocks or jacks with a suitable load bearing capacity. Do not use improvised blocks or jacks. WARNING Removal: 5.41.4 Heat the M12 screws (8) holding pivot brackets (5), using a small propane torch to break down the threadlocking compound. Remove screws and bracket. 5.41.5 Remove M16 screw (7) from top and bottom joint. 5.41.6 Tap out pivot pin (6) from bracket portion of machine frame. Note: Pivot pin is removed from top to bottom on uppermost bracket and from bottom to top on lower bracket. 5.41.7 Slide pivot bracket (5) and washer (2) out of machine frame. 5.41.8 After pivot bracket is off, place pivot pin (6) back into it as shown. Use an arbor or hydraulic press to push against pin (d) and press bearing (3) out of bracket. Installation: 5.41.9 To prevent rust, repaint any areas of the pivot bracket damaged by heating during disassembly. 5.41.10 Press bearings (3) into pivot brackets (5). Note: Bearing outer race is cracked. This is done during assembly procedure to install the inner bearing. 5.41.11 Place washer (2) into machine frame. 5.41.12 Slide (e) pivot bracket (5) over washer (2) and into machine frame. 5.41.13 Tap pivot pin (f) into bracket portion of machine frame and through pivot bracket (5). Note: Pivot pin is installed from bottom to top on uppermost bracket and from top to bottom on lower bracket. 5.41.14 Install M16 screw (7) and secure with locknut (1). Torque to 155 ft. lbs. (210 Nm). wc_tx000473gb.fm 136 RT Repair Disassembly/Reassembly—Older Machines 5.41.15 Secure pivot bracket (5) to rear half of machine frame with M12 screws (8). Secure screws using Loctite 271, or an equivalent high strength threadlocking compound and torque to 94 ft. lbs. (128 Nm). 5.41.16 Attach drums and scraper bars. 5.41.17 Grease bearings, through fittings (4), using Shell Alvania #2 grease. Note: See sealant and torque reference charts in back of book for appropriate threadlocking adhesives and torque values. Before you start the machine, ensure that all tools have been removed from the machine and that replacement parts and adjusters are firmly tightened. WARNING 2 3 6 4 7 5 6 4 3 2 8 3 1 2 7 6 d 6 3 6 f 7 2 3 e 5 2 1 wc_gr002552 wc_tx000473gb.fm 137 Disassembly/Reassembly—Older Machines RT Repair 5.42 Steering Cylinder See Graphic: wc_gr002553 Removal: 5.42.1 Remove four M8 screws (10) mounting the cylinder access cover (9) to the machine. 5.42.2 Disconnect hoses (14, 15) from cylinder (17). Cap hoses and fittings (13). 5.42.3 Remove two M12 screws (11) and washers (12) mounting cylinder (17) to frame. 5.42.4 Pull steering cylinder (17) from rear frame. Installation: 5.42.5 Mount steering cylinder (17) inside rear frame with M12 screw (11) and washer (12). 5.42.6 With machine positioned with front in-line with rear, secure ram end of steering cylinder to front frame with M12 screw (11) and washer (12). 5.42.7 Apply Loctite 545, or equivalent hydraulic sealant, to fittings (13) and attach hoses (14, 15) to steering cylinder (17). 5.42.8 Mount steering cylinder access cover (9) to frame with M8 screws (10). WARNING wc_tx000473gb.fm Note: See sealant and torque reference charts in back of book for appropriate threadlocking adhesives and torque values. Before you start the machine, ensure that all tools have been removed from the machine and that replacement parts and adjusters are firmly tightened. 138 RT Repair Disassembly/Reassembly—Older Machines 11 12 13 13 17 14 15 9 10 wc_gr002553 wc_tx000473gb.fm 139 Disassembly/Reassembly—Older Machines RT Repair 5.43 Drive Pump and Coupling Assembly Exploded View 1 [L1] 7 [L1, T2] 2 3 6 5 8 4 11 9 29 28 27 12 26 25 [L1, T1] 14 10 13 15 17 16 18 19 20 [L2] 15 24 20 [L2, T2] 17 18 23 [L2, T2] 19 22 [L2] wc_gr002554 wc_tx000473gb.fm 140 RT Repair Disassembly/Reassembly—Older Machines 5.44 Drive Pump and Coupling Assembly Components See Graphic: wc_gr002554 Ref. Description 1 Stud 2 Ref. Description 6 16 Block-hydraulic 1 Washer-lock 6 17 O-Ring 2 3 Nut (M8) 6 18 Fitting #8 (incl. 17, 19) 2 4 Bolt 6 19 O-Ring 2 5 Plug 1 20 Hose assembly 1 6 Manifold-suction 1 21 Screw (M6x40) 4 7 Screw (M6x50) 4 22 Hose assembly 1 8 Clamp-hose 1 23 Screw (M6x80) 4 9 Hose-suction 1 24 Block-hydraulic 1 10 O-Ring 1 25 Screw (M10x30) 4 11 O-Ring 1 26 Adapter-pump 1 12 Pump-hydraulic 1 27 Adapter-internal 1 13 Fitting-adapter 2 28 Adapter-engine 1 14 O-Ring 2 29 Support-pump 1 15 O-Ring 2 [L1] 0029311 [T1] 36 ft.lbs. (79 Nm) wc_tx000473gb.fm Qty. [L2] 0079356 [T2] 7 ft.lbs. (10 Nm) 141 Qty. Disassembly/Reassembly—Older Machines RT Repair 5.45 Replacing Drive Pump and Coupling See Graphic: wc_gr002555 Removal: 5.45.1 Loosen hose clamp (8) and disconnect suction hose (9) from suction manifold (6). Danger of burns! Pump may be hot. Care must be taken when removing hydraulic components and oil. Hot oil can burn! WARNING 5.45.2 Tag, disconnect, and cap hydraulic hoses (20, 22). 5.45.3 Remove screws (7, 21, 23) mounting hydraulic blocks (6, 16, 24) from drive pump (12). This is to provide clearance for mounting screws (25). 5.45.4 Heat and remove two M10 screws (25), mounting the drive pump (12) to pump support (29). 5.45.5 Slide pump adapter couplings (26, 27) off pump (12). 5.45.6 Remove two M8 nuts (3) and washers (2) mounting pump support (29) to engine. 5.45.7 Remove two screws (4) mounting adapter (28) to engine. Installation: 5.45.8 Grease adapter couplings (26, 27) with Shell Alvania #2 and install them on drive pump (12). Note: Pump adapter (26) must be installed with short end facing toward pump as shown. 5.45.9 Mount adapter (26) to engine with screws (4). 5.45.10 Mount pump support (29) to engine studs. Apply Loctite 243 or an equivalent medium strength threadlocking compound to studs and secure with nuts (3) and washers (2). 5.45.11 Mount drive pump (12) to pump support (29) with screws (25). Secure screws using Loctite 271, or equivalent high strength threadlocker, and torque screws to 7 ft.lbs. (10 Nm). Note: Make sure tangs (a) on internal adapter (27) fit into slots in engine adapter (28). Apply grease or anti-seize to tangs and opposing couplers. 5.45.12 Mount hydraulic blocks (6, 16, 24) to drive pump (12) with screws (7, 21, 23). Secure screws using Loctite 271, or equivalent, and torque to 7 ft.lbs. (10 Nm). 5.45.13 Apply hydraulic sealant to fittings and attach hydraulic hoses (20, 22, 9). wc_tx000473gb.fm 142 RT Repair Disassembly/Reassembly—Older Machines 7 1 2 3 6 8 4 9 29 28 a 27 26 12 25 16 20 24 21 23 22 wc_gr002555 wc_tx000473gb.fm 143 Disassembly/Reassembly—Older Machines RT Repair 5.46 Removing Engine Cover See Graphic: wc_gr002556 General: All machines are equipped with a two cylinder, 20 Hp (16 kW) Lombardini diesel engine - model 12LD475-2. When servicing the engine or replacing parts, refer to the engine identification plate located on the fan shroud for the serial number and model number of the engine. Cover Removal: wc_tx000473gb.fm 5.46.1 Before removing the cover, loosen hose clamp (b) mounting air cleaner hose (c) to air cleaner (d). Remove air cleaner hose. 5.46.2 Remove two screws (e), nuts (f), and ground strap (k) mounting voltage regulator (g) to inside of cover wall. 5.46.3 Remove eighteen M8 screws (h) mounting entire engine cover (j) to front frame. 144 RT Repair Disassembly/Reassembly—Older Machines c b d j g e f k h h wc_tx000473gb.fm 145 wc_gr002556 Disassembly/Reassembly—Older Machines RT Repair 5.47 Removing Engine See Graphic: wc_gr002557 Stop and switch off the machine and disconnect the battery. 5.47.1 Remove cover from front frame. See section Removing Enigne Cover. 5.47.2 Loosen screws (1) holding throttle cable retainers (2) and pull retainers off cable. 5.47.3 Remove nut (3) holding throttle cable (4) to engine mounting bracket. Pull cable out through bracket. 5.47.4 Tag and disconnect hydraulic hoses (5) from drive pump. Cap or plug all open connections. 5.47.5 Unplug wire harness (6). 5.47.6 Disconnect battery ground wire (7) from engine block. 5.47.7 Disconnect positive battery cable (8) from starter motor. 5.47.8 Remove screws (9) mounting radiator (10) to front frame. Keep hydaulic hoses connected and place radiator assembly aside and clear from engine. 5.47.9 Disconnect fuel pressure line (11) from fuel solenoid and cap the hose. 5.47.10 Disconnect fuel return line by cutting hose (12) as close to crimped clamp (13) as possible. Use a side cutter or other appropriate tool to remove crimped clamp from barbed nipple (14) on engine. 5.47.11 Remove cap (15) to drain oil from engine. Remove fitting and seal ring connecting drain hose assembly (16) to engine. Note: In the interests of environmental protection, place a plastic sheet and a container under the machine to collect the liquid which drains off, and dispose of properly. 5.47.12 Remove the four M16 screws (17) and nuts (18) securing engine to machine frame. 5.47.13 Use an appropriate hoist and sling to lift engine up and off machine frame. Use lifting eyes (19) on engine for lifting. WARNING Only use steel ropes or chains for hoisting. Ropes or chains must have the suitable specified lifting capacity. Do not use improvised ropes or chains. 5.47.14 Remove drive pump, couplings and support from engine. See section Drive Pump and Coupling. wc_tx000473gb.fm 146 RT Repair Disassembly/Reassembly—Older Machines 3 4 8 2 5 1 18 15 16 6 11 5 17 7 19 10 14 12 13 9 wc gr002557 wc_tx000473gb.fm 147 Disassembly/Reassembly—Older Machines RT Repair 5.48 Installing Engine See Graphic: wc_gr002558 Replacement engines come equipped with a new voltage regulator and pump coupling. They do not include the following: • Exhaust System • Air Cleaner • Wiring Harness or Engine Relays • Pressure Switch • Engine Oil Drain Remove these items from existing engine assembly for use on new engine. See the upcoming sections for removal and installation procedures. wc_tx000473gb.fm 5.48.1 Line up mounting holes on engine with those on the front frame. Mount engine to frame with four M16 screws (1) and nuts (2). 5.48.2 Install seal ring (3) and drain hose assembly (4) into engine. Check engine oil level. See Section 1.12 Lubrication Specifications. 5.48.3 Install throttle cable (5). Make sure cable is pushed all the way in at handle . Insert cable through bracket (6) and secure with nut (7). Adjust retainers (8) on cable end so machine runs at specified RPM at full throttle control. See Tech Data for engine specifications. 5.48.4 Install drive pump and coupling. See section Drive Pump and Coupling. 5.48.5 Install cover assembly. See section Replacing Engine Cover. 5.48.6 Reconnect battery cables. 148 RT Repair Disassembly/Reassembly—Older Machines 6 7 5 8 2 3 4 1 wc_gr002558 wc_tx000473gb.fm 149 Disassembly/Reassembly—Older Machines RT Repair 5.49 Replacing Muffler See Graphic: wc_gr002559 Removal: Danger of burns! Muffler may be hot–care must be taken when removing any muffler components. WARNING 5.49.1 Remove two M8 nuts (18) mounting muffler adapter (9) to engine. 5.49.2 Remove two M8 screws (10) mounting muffler bracket (11) to engine. 5.49.3 Remove muffler assembly from engine. Installation: 5.49.4 Line up mounting holes on muffler bracket (11) with holes on engine. Mount muffler bracket with two M8 screws (10). 5.49.5 Mount muffler adapter (9) to studs on engine exhaust manifold with two nuts (18). 9 9 12 12 18 14 10 16 11 wc_gr002559 wc_gr002560 17 15 5.50 Replacing Engine Air Cleaner See Graphic: wc_gr002560 Removal: 5.50.1 Loosen hose clamps (12) and remove air cleaner hoses (13, 14). 5.50.2 Remove four M8 screws (15) mounting air cleaner (16) to air cleaner mounting plate (17). 5.50.3 Remove air cleaner from engine. Installation: wc_tx000473gb.fm 5.50.4 Line up mounting holes of air cleaner mounting plate (17) with those in the air cleaner (16). Mount air cleaner with four M8 screws (15). 5.50.5 Slide air cleaner hose (13) over inlet on air cleaner and secure with hose clamp (12). Repeat for air cleaner hose (14). 150 RT Repair Disassembly/Reassembly—Older Machines 5.51 Engine Relays See Graphic: wc_gr002561 Removal: 5.51.1 Remove three M8 locknuts (1) mounting air cleaner mounting plate (2) to engine. Save ground strap (3). 5.51.2 Remove three M8 studs (4) from engine. Note: Relays are interchangeable for quick troubleshooting of possible defective relay. Installation: 5.51.3 Install three M8 studs (4) into engine. Secure studs using Loctite 271 or an equivalent high strength threadlocking compound. 5.51.4 Inspect and secure glow plug relay (5), starter relay (6), and antirestart module (7). 5.51.5 Line up mounting holes in air cleaner mounting plate (2) with studs (4) in engine. Secure plate to engine using M8 locknuts (1). Note: Install ground strap (3) on lower stud. Testing Anti-Restart Module: 5.51.6 Ensure brown ground wire is securely attached to the engine. 5.51.7 The white wire connects the engine oil pressure switch to the engine oil pressure switch indicator light via the anti-restart module. Ground the white wire to the engine frame and make sure the engine oil light turns on. Try to start the engine. 5.51.8 To eliminate the anti-restart module, unplug the 3-position wire connector. Ground the black wire from the plug end to the engine (opposite the anti-restart module) leading to the starter relay. Test start the engine. If this allows the engine to start, replace the antirestart module. 5 2 7 6 4 1 3 wc_gr002561 wc_tx000473gb.fm 151 Disassembly/Reassembly—Older Machines RT Repair 5.52 Miscellaneous Engine Components See Graphic: wc_gr002562 Removal: 5.52.1 Remove banjo fitting (8) and seal rings (9) mounting pressure switch assembly (10) to engine. Note: Pressure switch is normally closed 5.52.2 Remove clamp (11) securing end cap (12) to air manifold. Installation: wc_tx000473gb.fm 5.52.3 Remove existing screw and mount pressure switch assembly (10) to engine with banjo fitting (8) and seal rings (9). 5.52.4 Remove existing clamp and secure cap (12) with clamp (11). Orientate clamp so neither hoses nor wires rub on sharp edges. 152 RT Repair Disassembly/Reassembly—Older Machines 11 12 8 9 wc_gr002562 wc_tx000473gb.fm 153 Disassembly/Reassembly—Older Machines RT Repair 5.53 Engine Wiring See Graphic: wc_gr002563 and wc_gr002564 Installation: Replacement engines come equipped with a new voltage regulator (1) that needs to be modified. Make sure all regulators are grounded to the engine by a seperate ground wire to ensure proper function. 5.53.1 Cut off connector and terminals from end of regulator per dimension given. Strip and tin all five wires prior to crimping on terminals. 5.53.2 Crimp terminal (2) to purple wire of regulator and insert into position 5 of the connector (3). 5.53.3 Crimp terminal (2) to green wire of regulator and insert into position 4 of the connector (3). 5.53.4 Crimp terminal (2) to red wire of regulator and insert into position 3 of the connector (3). 5.53.5 Crimp terminal (2) to each yellow wire of regulator and insert into positions 1 & 2 of the connector (3). 5.53.6 Insert white plug (4) into position 6 of the connector (3). 5.53.7 After all terminals are inserted into connector, assemble end cap (5). The connector (6) attached to the alternator also needs to be modified. 5.53.8 Cut off connector and terminals from base of rubber boot. Strip and tin both yellow wires prior to crimping on terminals. 5.53.9 Crimp terminal (7) to each yellow wire and insert into positions 1 & 2 of the connector (8). 5.53.10 Insert red wire from harness (9) into position 3 of the connector (8). 5.53.11 Insert green/white wire from harness (9) into position 4 of the connector (8). 5.53.12 Insert white wire from harness (9) into position 5 of the connector (8). 5.53.13 Insert white plug (4) into position 6 of the connector (8). 5.53.14 After all terminals are inserted into connector, assemble end cap (10). 5.53.15 Connect harness (9) to engine components (A–N). wc_tx000473gb.fm 154 RT Repair Disassembly/Reassembly—Older Machines 10.5" (266.7 mm) 1 White Plug Position 6 Yellow Position 1 Yellow Position 1 Purple Position 5 Yellow Position 2 White Position 5 Yellow Position 2 Green Position 4 3 Red Position 3 8 White Plug Position 6 Red Position 3 Green/White Position 4 wc_gr002563 Continued wc_tx000473gb.fm 155 Disassembly/Reassembly—Older Machines RT Repair (Engine wiring continued) 0111879 Cap-retainer 8 0111872 Connector 5 0111876 Terminal-pin 16–18 7 0111878 Cap-retainer 3 0111871 Connector 10 0111874 Terminal 16–18 2 4 0111873 Plug 6 8 C 3 B M A H E N D M L 1 F 9 J G wc_gr002564 I Ref. Connection Color Ref. Connection Color A Voltage regulator White H Oil pressure switch White B Voltage regulator Green/White I Upper fuel solenoid Tan C Voltage regulator Red J Anti-restart module -- D Starter motor Black K Main wiring harness -- E Starter relay -- L GLow plug Pink F Starter motor Red M Ground Brown G Lower fuel solenoid Tan N Glow plug relay -- wc_tx000473gb.fm 156 RT Repair 6. Disassembly/Reassembly—Newer Machines Disassembly/Reassembly—Newer Machines 6.1 Tools Because all possible problems encountered while repairing the equipment cannot be anticipated, it is up to the mechanic to use common sense and good judgement in tool selection. The use of any special tools is recommended only for those operations where the use of conventional tools proves inadequate. Before substituting another tool or procedure, you should be satisfied that neither personal injury nor damage to the component will result. 6.2 Ordering Parts The repair procedures contained in this manual do not include part numbers. For parts replacement information, refer to the Parts Book originally supplied with the unit. If the original Parts Book has been lost, a replacement may be ordered from Wacker Corporation. When ordering a replacement Parts Book, please list the model number, item number, revision level, and serial number of the machine. Parts Books are also available on the Wacker Corporation Web site. See www.wackergroup.com. Enter the site as a visitor. 6.3 Reference Numbers ( ) Repair procedures contain reference numbers enclosed in parentheses ( ). These numbers refer to the item numbers shown on the assembly drawings and other detailed drawings. They are included to aid the mechanic in identifying parts and assembling components. 6.4 Weight Block See Graphic: wc_gr000843 The weight block symbol gives an approximate weight measurement to aid the mechanic when lifting/hoisting larger components. 250 kg (550 lbs.) wc_gr000843 wc_tx000474gb.fm 157 Disassembly/Reassembly—Newer Machines 6.5 RT Repair Drum Support Exploded View 30 47 31 32 33 34 46 45 2 1 3 35 36 43 4 42 5 38 41 40 39 6 7 26 27 28 9 10 11 12 13 14 15 16 23 22 17 21 20 19 16 24 7 6 6 4 29 25 3 28 27 wc_gr002097 wc_tx000474gb.fm 26 158 2 1 RT Repair 6.6 Disassembly/Reassembly—Newer Machines Drum Support Components See graphic: wc_gr002097 Ref. Description Ref. Description 1 2-1/8” nut 25 Seal 2 Washer 26 9/16-18 plug 3 Drum hub 27 O-Ring 4 M10 x 20 screw 28 Cover 5 Cover 29 Drum support 6 Roller bearing 30 Retaining ring 7 Retaining ring 31 M8 x 25 screw 8 O-Ring 32 Shaft seal 9 Plate 33 Ball bearing 10 M8 x 16 screw 34 Retaining ring 11 3/8-16 x 1 screw 35 Retaining ring 12 Washer 36 Ball bearing 13 Pinion gear 37 O-Ring 14 Drive motor 38 Screw 15 M12 x 60 screw 39 Cover 16 Key 40 Plate 17 Drive shaft 41 O-Ring 18 Key 42 Shaft 19 Retaining ring 43 Spring 20 M8 x 20 screw 44 Ring 21 Cover 45 Roll pin 22 Shaft seal 46 Housing 23 Pinion gear 47 Pinion gear 24 Retaining ring -- -- wc_tx000474gb.fm 159 Disassembly/Reassembly—Newer Machines 6.7 RT Repair Identifying Drum Supports See graphic: wc_gr002053 wc_tx000474gb.fm 6.7.1 The rear drum (1) contains a brake (a), a drive motor (b), an exciter assembly (c) with exciter motor (d). 6.7.2 The front drum (2) contains a drive motor (b) and an exciter assembly (c) with exciter motor (d). 6.7.3 When disassembling the drum support, always start on the exciter side of the drum—it can be identified by the bulge (e) in the casting. 160 RT Repair 6.8 Disassembly/Reassembly—Newer Machines Removing Drums See graphic: wc_gr002052 6.8.1 Lock articulated joint. 6.8.2 Lift one end of the machine using an appropriate crane or hoist. Insert jack stands (x) to support machine from underneath. 6.8.3 Remove the M12 screws (a) and washers and remove the scrapers (b). 6.8.4 Remove the six M16x55 screws (d) securing the drum (e) to the drum support (f). 6.8.5 Remove the three M16 screws (c) and washers acting as plugs. In their place, insert three of the M16x55 removed in the previous step. Use these screws as pushers to push the drum off the drive housing. x a b f d e c wc_tx000474gb.fm 161 wc_gr002052 Disassembly/Reassembly—Newer Machines 6.9 RT Repair Installing Drums See graphic: wc_gr002052 6.9.1 Lock articulated joint. 6.9.2 Lift one end of the machine using an appropriate crane or hoist. Insert jack stands (x) to support machine from underneath. 6.9.3 Place the drum (e) on the drum support (f) and secure it to the hub using six M16x55 screws (d) and washers. Use Loctite 243 or equivalent on the screws and torque them to 210 Nm (154 ft.lbs.). 6.9.4 Install the scrapers (b) using M12 screws (a). Use Loctite 243 or equivalent on the screws and torque them to 120 Nm (88 ft.lbs.). 6.10 Opening Drum See graphic: wc_gr002347 6.10.1 Loosen the center hub nut (a) so that it is nearly off (2–3 threads remaining on). Do so for both sides of the drum. 6.10.2 Remove the scrapers and the drums. See Section Removing Drums. 6.10.3 Position the drum support slightly off the floor and support it with jack stands. 6.10.4 Starting with the exciter side, remove the outer ring of bolts (b) securing the slave hub assembly onto the drum support. 6.10.5 Using three pusher bolts in position (c), gradually push the slave hub assembly off the drum support. When the hub releases from the taper of the drive shaft a distinct “pop” will be heard. Be sure to leave the center hub nut on the shaft 2–3 threads to prevent the hub assembly from “popping” off the drum. 6.10.6 Once the slave hub assembly is free, remove the hub nut and remove the slave hub assembly (d) from the drum support. 6.10.7 If working on the rear drum support, disconnect the hydraulic line (e) to the brake. Cap the line immediately after disconnecting it to prevent contamination of the hydraulic system. 6.10.8 Disconnect the hydraulic lines to the drive motor (f). Cap all lines immediately after disconnecting them to prevent contamination of the hydraulic system. 6.10.9 On the opposite side of the drum support, remove the outer ring of bolts securing the drive hub assembly onto the drum support. 6.10.10 Using three pusher bolts, gradually push the drive hub assembly off the drum support. With the help of an assistant, pull the drive hub assembly completely from the drum support. The assembly will include the shaft, drive motor (g), and the brake (h) on rear drum supports. wc_tx000474gb.fm 162 RT Repair Disassembly/Reassembly—Newer Machines 6.11 Closing Drum See Graphic: wc_gr002347 and wc_gr002097 wc_tx000474gb.fm 6.11.1 Reassemble drive and slave hubs. See sections Reassembling Drive Hub and Reassembling Slave Hub. 6.11.2 With the aid of an assistant, position the drive hub assembly (shaft, drive hub, drive motor, and brake on rear drums) into the drum support. Secure the assembly to the drum support using twelve M10 x 20 screws. Use Loctite 243 or equivalent on the screws and torque them to 49 Nm (36 ft.lbs.). 6.11.3 Tighten the hub nut. Torque the hub nut to 816 Nm (600 ft.lbs.). 6.11.4 Connect the drive motor and brake hydraulic lines. 6.11.5 On the exciter side of the drum support, position the slave hub on the drum support. Secure the assembly to the drum support using twelve M10 x 20 screws. Use Loctite 243 or equivalent on the screws and torque them to 49 Nm (36 ft.lbs.). 6.11.6 Tighten the hub nut. Torque the nut to 816 Nm (600 ft.lbs.). 163 Disassembly/Reassembly—Newer Machines RT Repair 6.12 Disassembling Drive Hub See Graphic: wc_gr002352 and wc_gr002097 6.12.1 Remove drum. See Section Removing Drum. 6.12.2 Open drum. See Section Opening Drum. 6.12.3 Remove drive motor (a) and brake (b) (on rear hubs). 6.12.4 Remove oil from drive hub. Dispose of oil properly. 6.12.5 Remove five screws (c) securing gear cover (d) and remove the gear cover. Note: Because gasket eliminator is applied to the mating surfaces of the hub and the gear cover during assembly, it may be necessary to tap the gear cover to break it loose. 6.12.6 Press the shaft seal (e) from the gear cover. 6.12.7 Remove the retaining ring (f). 6.12.8 Leave the hub nut (g) on the shaft and using three pusher bolts (h), pull the gear off the shaft. 6.12.9 Pull the lip seal off the shaft. 6.12.10 With the hub nut loose but still on the shaft, tap the hub from the opposite side to break the hub loose from the taper on the shaft. Note: Leaving the hub nut threaded on the shaft prevents the hub from “popping” off the shaft when the hub releases from the taper on the shaft. 6.12.11 Pull the key from the shaft. 6.12.12 Invert the hub as shown and using a propane torch heat the bearing inner race quickly. When heated to the proper temperature, the bearing race will slide off the hub. Pull it from the shaft if necessary. 6.12.13 Remove the retaining ring from the gear cover and remove the outer bearing race. wc_tx000474gb.fm 164 RT Repair wc_tx000474gb.fm Disassembly/Reassembly—Newer Machines 165 Disassembly/Reassembly—Newer Machines RT Repair 6.13 Reassembling Drive Hub See Graphic: wc_gr002355 and wc_gr002097 6.13.1 Insert the replacement bearing outer race (6) (markings side in first) into the gear cover (5) and secure it with the retaining ring (7). 6.13.2 Press the inner bearing race (a) onto the hub and add a new seal (b) to the hub. When hub nut is tightened, the seal seats into gear cover (5). 6.13.3 Insert the key (16) and the retaining ring (19) on the shaft (17). Cool the shaft with cold water and apply a thin film of oil to the shoulder of the shaft (c) where the gear will rest. Heat the gear to 400°F (use a hot plate or similar source). Then, slide or press the shaft into the gear (23) up to the retaining ring. Note: When heated to the correct temperature, very little pressure is required to press the shaft into the gear. 6.13.4 Allow the gear and shaft to cool. Slide the shaft assembly through the gear cover. 6.13.5 Apply Loctite flexible anaerobic gasket or equivalent on the gear cover and connect the gear casing cover (21) to the gear cover using five M8x20 screws (4). Use Loctite 243 or equivalent on the screws and torque the screws to 41 Nm (30 ft.lbs.). 6.13.6 Add key (d) and seal (e) to shaft. 6.13.7 Place the hub (3) onto the shaft and secure it with washer (2) and hub nut (1). 6.13.8 Fill hub with 12.5 oz. of 10W30. See specification chart. 6.13.9 Apply Loctite flexible anaerobic gasket (f) or equivalent between face of gear casing cover and the drive motor. Install the drive motor (g) using three M12 screws. Use Loctite 243 or equivalent on the screws. 6.13.10 Apply Loctite flexible anaerobic gasket or equivalent between face of gear casing cover and the brake. Install the brake (h) using three M8 screws. Use Loctite 243 or equivalent on the screws and torque them to 41 Nm (30 ft.lbs.). wc_tx000474gb.fm 166 RT Repair Disassembly/Reassembly—Newer Machines 8 1 10 23 2 4 3 12 13 14 9 11 16 22 15 c 26 27 28 17 21 20 6 5 19 7 18 a b d e g e f wc_gr002355 wc_tx000474gb.fm 167 Disassembly/Reassembly—Newer Machines RT Repair 6.14 Disassembling Slave Hub See Graphic: wc_gr002353 and wc_gr002097 wc_tx000474gb.fm 6.14.1 Remove the retaining ring (a) and remove the disc (b). 6.14.2 Remove the bearing outer race (c) from the cover. 6.14.3 Press the seal (d) from the cover. 6.14.4 Invert the hub as shown and using a propane torch heat the bearing inner race quickly. When heated to the proper temperature, the bearing race will slide off the hub. Pull it from the shaft if necessary. 168 RT Repair Disassembly/Reassembly—Newer Machines 62 64 57 59 758 60 53 52 70 71 672 671 c b a d wc_gr002353 wc_tx000474gb.fm 169 Disassembly/Reassembly—Newer Machines RT Repair 6.15 Reassembling Slave Hub See Graphic: wc_gr002356 and wc_gr002097 wc_tx000474gb.fm 6.15.1 Press new seal (a) into cover. 6.15.2 Apply a liberal amount of EMB lubriplate white grease or equivalent to the replacement bearing outer race (b) and insert it into the gear cover. Secure it with the disc (c) and retaining ring (d). 6.15.3 Press the inner bearing race (e) onto the hub and add new replacement seal (f). 170 RT Repair Disassembly/Reassembly—Newer Machines 62 64 57 59 758 60 53 52 70 672 71 671 b a e c f d wc_gr002356 wc_tx000474gb.fm 171 Disassembly/Reassembly—Newer Machines RT Repair 6.16 Rebuilding Brake See Graphic: wc_gr002354 Disassembly: 6.16.1 Open the drum. See Section Opening the Drum. 6.16.2 Remove drive hub. See Section Disassembling Drive Hub. 6.16.3 Remove the three screws (698) securing the brake to the hub and remove the brake. Note: Gasket eliminator is applied to the mating surfaces of the hub and the brake during assembly, it may be necessary to tap the brake cover to break it loose from the hub. 6.16.4 Remove fitting and drain hydraulic oil from casing; dispose of hydraulic oil properly. 6.16.5 Remove the retaining ring (90) and remove gear (56). 6.16.6 Remove the six screws (693) securing the cover (81) and remove the cover. 6.16.7 Remove O-ring (a) from cover. 6.16.8 Remove the plate (83) and inner O-ring (94) from housing (80). 6.16.9 Remove the retaining ring (89) and pull bearing (87) from cover. 6.16.10 Pull the shaft (82) from inside the housing. 6.16.11 Remove the ring spacer (84) and spring (85). 6.16.12 Remove the retaining ring (88) and pry bearing (b) out of housing. 6.16.13 Pull seal (c) from housing. Reassembly: 6.16.14 Insert the seal (c) into housing. 6.16.15 Insert bearing (86) into housing (80) and secure with retaining ring (88). 6.16.16 Dip O-ring (94) in hydraulic oil and position on face of housing. 6.16.17 Insert bearing (87) into cover (81) and secure with retaining ring (89). 6.16.18 Align holes in plate (83) with pins and place plate on housing. 6.16.19 Add spring (85) and gear to shaft and insert shaft assembly into housing. 6.16.20 Apply Loctite 243 or equivalent to six screws (693) and secure cover (81) to housing. 6.16.21 Add gear (56) to shaft and secure with retaining ring (90). wc_tx000474gb.fm 172 RT Repair Disassembly/Reassembly—Newer Machines 90 698 91 86 56 88 80 92 89 84 85 87 69 82 693 69 83 81 a b c wc gr002354 wc_tx000474gb.fm 173 Disassembly/Reassembly—Newer Machines RT Repair 6.17 Exciter Exploded View 8 4 13 3 5 12 9 692 11 702 14 12 692 720 695 13 10 12 8 5 2 4 70 71 1 12 14 702 wc_tx000474gb.fm 174 RT Repair Disassembly/Reassembly—Newer Machines 6.18 Exciter Parts List Measurem./Abm. Norm Torque/Drehm. Sealant Schmierstoff Chaveta Clavette A14 x 9 x 50 DIN6885 O-Ring O-Ring Anillo-O Joint torique 12 x 2 Plug (threaded) Schraubverschluß Tapón roscado Bouchon 9/16-18in 692 0011457 12 Screw Schraube Tornillo Vis M8 x 25 DIN933 25Nm/18ft.lbs 0029311 695 0011543 2 Screw Schraube Tornillo Vis M8 x 20 DIN912 41Nm/30ft.lbs 0029311 702 0012361 12 Screw Schraube Tornillo Vis M8 x 16 720 0033988 Lockwasher Federring Arandela elástica Rondelle de ressort 10 Ref. Pos. Part No. Artikel Nr. Qty. St. Description Beschreibung Descripción Description 1 0116902 1 Drum support Bandagenträger Basa del tambor Support de tambour 2 0119224 1 Exciter shaft Erregerwelle Eje del excitador Arbre de l'excitatrice 3 0119225 1 Exciter shaft Erregerwelle Eje del excitador Arbre de l'excitatrice 4 0119226 2 Eccentric weight Unwucht Masa excéntrica Balourd excentrique 5 0119227 2 Eccentric weight Unwucht Masa excéntrica Balourd excentrique 8 0116318 2 Gear Zahnrad Engranaje Engrenage 9 0116958 1 Cover Deckel Tapa Couvercle 10 0116959 1 Bearing cover Lagerdeckel Tapa del rodamiento Couvercle du roulement 11 0119314 1 Exciter motor Erregermotor Motor excitador Moteur d'excitatrice 12 0080742 4 Roller bearing Rollenlager Rodamiento de rodillos Roulement à rouleaux 14 0080211 2 Cover Deckel Tapa Couvercle 67 0116872 1 Key (square) Keil 70 0014398 3 71 0078269 3 2 25Nm/18ft.lbs 0029311 wc_gr002351 wc_tx000474gb.fm 175 Disassembly/Reassembly—Newer Machines RT Repair 6.19 Disassembling Exciter See graphic: wc_gr002349 6.19.1 Open the drum. See Section Opening the Drum. 6.19.2 Remove the two screws (a) securing the exciter motor (b) to the drum support and remove the exciter motor. 6.19.3 Remove the screws securing the exciter housing cover. Use two of the longer screws (c) as pushers to push off the exciter housing cover (d). 6.19.4 Pull the exciter shaft (e) and drive gear from the exciter housing. 6.19.5 Remove the screws securing the bearing cover (f) to the exciter housing. Remove the bearing cover by tapping it from inside the exciter housing. 6.19.6 On the opposite side of the machine, remove the exciter housing cover and the bearing cover as stated above. 6.19.7 Pull the second exciter shaft and drive gear from the exciter housing. 6.19.8 Using a properly-sized adapter plug (g), tap the bearing from the exciter housing. 6.19.9 Using an Arbor press, press the bearing from the exciter housing cover (h) that the exciter motor mounts to. 6.19.10 Using an inside-style puller, pull the bearing from the other exciter housing cover (i). 6.19.11 Tap on the small eccentric weight (j) to remove the bearing race from the exciter shaft. 6.19.12 Using a gear puller (k), pull the gear and the inner bearing race off the exciter shaft. wc_tx000474gb.fm 176 RT Repair wc_tx000474gb.fm Disassembly/Reassembly—Newer Machines 177 Disassembly/Reassembly—Newer Machines RT Repair 6.20 Reassembling Exciter See Graphic: wc_gr002350 6.20.1 Using an Arbor press, press new outer bearing races (a) into the exciter housing covers. 6.20.2 Install the eccentric weight (b) and key (c) on exciter shaft. Then, press the gear (d) and the bearing race (e) onto the exciter shaft. Do so for both exciter shafts. 6.20.3 On the opposite side of each shaft, install the eccentric weight (f) and press the inner race (g) onto the exciter shaft. Do so for both exciter shafts. 6.20.4 Insert the bearing outer race (h) into the follower side of the exciter housing. 6.20.5 Insert the follower-side exciter shaft assembly into the exciter housing. 6.20.6 Apply Loctite 515 gasket eliminator or equivalent to the bearing cover (i) and secure the follower-side bearing cover to the exciter housing with six screws. Torque screws to 25 Nm (18 ft.lbs.) 6.20.7 Insert the exciter-side bearing outer race into the exciter housing. Apply Loctite 515 gasket eliminator or equivalent to the bearing cover and secure the cover with six M8x16 screws. Use Loctite 243 or equivalent on screws and torque to 25 Nm (18 ft.lbs.). 6.20.8 Fill exciter housing with oil. 6.20.9 Insert driven exciter assembly into the exciter housing so that weights are even and level with each other (j). 6.20.10 Apply Loctite 515 gasket eliminator or equivalent to the bearing cover and secure the cover with six M8x25 screws. Use Loctite 243 or equivalent on screws and torque to 25 Nm (18 ft.lbs.). 6.20.11 Apply Loctite 515 gasket eliminator or equivalent to the exciter motor and secure with two M8x20 screws. Use Loctite 243 or equivalent on screws and torque to 25 Nm (18 ft.lbs.). wc_tx000474gb.fm 178 RT Repair Disassembly/Reassembly—Newer Machines d b a c e f g h i j wc_gr002350 wc_tx000474gb.fm 179 Disassembly/Reassembly—Newer Machines RT Repair 6.21 Removing Drum Support See Graphic: wc_gr002706 6.21.1 Open the drum. See Section Opening the Drum. 6.21.2 Disconnect the hydraulic lines (a) at the exciter motor. Plug hydraulic lines immediately after disconnecting to prevent contamination of the hydraulic system. 6.21.3 Remove the exciter components (weights, shafts, covers). See Section Rebuilding Exciters. 6.21.4 Empty the drum support of oil. 6.21.5 Label positions of all the hoses (b). 6.21.6 Cut the wire tie (c). 6.21.7 Using an appropriate hoist or crane, raise the machine approximately six inches off the ground. Using an appropriate hoist or crane, secure the drum support in the raised position (d). Using jack stands (e) or screw jacks, secure the machine frame in position. Secure the machine frame and the drum support using separate devices. You will be required to lower the drum support in upcoming steps while retaining the position of the machine frame. 6.21.8 Remove the shock mount screws (f) at the outer and the upper inner locations. 6.21.9 Lower the drum support to gain access to the upper hose clamp. 6.21.10 Loosen the nuts (g) of the hose clamps. Remove the screws (h) securing the hose clamps to the drum support. 6.21.11 Remove the brake line (i) from the bulkhead fitting and pull the brake line from the drum support. 6.21.12 Lower the drum support to the floor. Guide the hoses through it as it is being lowered. 6.21.13 Remove the screw (j) securing the lower inner shock mount. 6.21.14 Continue guiding the hoses through the drum support and pull the drum support completely away from the frame. wc_tx000474gb.fm 180 RT Repair Disassembly/Reassembly—Newer Machines f i b c d j a e 6" (15 cm) g h h g i wc_gr002706 wc_tx000474gb.fm 181 Disassembly/Reassembly—Newer Machines RT Repair 6.22 Installing Drum Support See Graphic: wc_gr002706 and wc_gr002359 6.22.1 With shock mounts attached to drum support, position drum support on the floor and under frame of machine. As you position it, guide the hydraulic hoses into the drum support. 6.22.2 Attach upper and lower hose clamps to drum support. During mounting of hose clamps on rear drums, attach hose guard (15). Do not tighten hose clamps around hoses at this time. 6.22.3 Lower the machine frame so that the outer shock mounts can be secured. Use Loctite 243 or equivalent on the screws and torque them to 86 Nm (63 ft.lbs.). 6.22.4 Continue lowering machine until innermost shock mounts can be secured. Use Loctite 243 or equivalent on the screws and torque them to 86 Nm (63 ft.lbs.). 6.22.5 Cut the head off an M10 screw. Insert it into the drum support in an upper location and use it as a guide pin. With the aid of an assistant or appropriate crane, position the drive hub assembly so that the shaft is approximately halfway in to the drum support. Connect the hydraulic line leading to the hydraulic fitting (b) on the drive motor that is closest to the drive hub. Using the pin as a guide, slide the drive hub assembly the rest of the way into the drum support. 6.22.6 Use Loctite 243 or equivalent on twelve M10x20 screws and secure the drive hub assembly to the drum support. Torque the screws to 49 Nm (36 ft.lbs.). 6.22.7 Attach the rest of the hydraulic lines and add wire tie. 6.22.8 Tighten hose clamps around hoses. 6.22.9 Grease inner seal (c) with white lithium grease and place it approximately halfway on the taper portion of the drive shaft. 6.22.10 Install the key on drive shaft and install the hub with hub nut. Torque hub nut to 816 Nm (600 ft.lbs.). Also torque drive-side hub nut. 6.22.11 Install drums and scrapers. See Section Installing Drums. wc_tx000474gb.fm 182 RT Repair Disassembly/Reassembly—Newer Machines 685 682 15 694 685 682 777 719 46 47 680 702 16 371 3 709 718 704 718 72 48 685 777 682 49 a b c wc_gr002359 wc_tx000474gb.fm 183 CombiControl/Electrical System 7. RT Repair CombiControl/Electrical System 7.1 CombiControl Features See Graphic: wc_gr002567 This machine is designed specifically for remote control operation. This feature protects the operator by allowing him or her to stand at a distance from the machine, and the work area, during operation. When used in excavations, it allows the operator to stand safely above the trench, rather than in it. The CombiControl transmitter is designed for both cable-controlled and infra-red (IR) remote-controlled operations. The Infra-red System includes the transmitter and receiving eye. This system provides wireless line-of-sight operation up to 65 feet (20 m). It uses a hand-held transmitter to transmit signals to a receiving eye on the machine to control machine operation. 7.2 CombiControl Operation See Graphic: wc_gr002568 The Infra-Red Control System will only operate if the control cable is connected to the receiving eye receptacle on the roller (b). During operation, keep the transmitter pointed at the receiving eye on the machine to continue operation. The amber light on top of the machine will blink slowly to show that the machine is receiving signals from the transmitter. When the joystick is pressed fully forward, the roller will go into high-speed travel, and the amber light will blink rapidly. The CombiControl transmitter batteries can be recharged at the end of operations by connecting the transmitter receptacle (a) to the battery charging cable (c). The Cable Control System will only operate if the control cable is disconnected from the receiving eye and connected to the transmitter receptacle (a, d). In this mode, the CombiControl transmitter batteries charge while the machine is in operation. Always use the neck strap for the CombiControl transmitter provided by WACKER. This neck strap is designed to break away so that the operator will not be injured should the machine slide, tip, or fall. WARNING wc_tx000475gb.fm 184 RT Repair CombiControl/Electrical System wc_gr002567 b a c d wc_gr002568 wc_tx000475gb.fm 185 CombiControl/Electrical System 7.3 RT Repair Decoder Module See Graphic: wc_gr002569 The decoder module (d) is positioned behind the rear panel at the back of the machine. It receives, decodes and outputs the signal from either the control cable or IR transmitter. It is also the power supply for all electronic functions. It includes a channel selection microswitch. A channel selection microswitch is also included in the transmitter module. For operation of the remote control systems BOTH switches must be set to the SAME channel. The LED's (green and red) are there for diagnostic aiding. They are: 7.4 • The green LED (f) will light when the decoder is receiving a control signal (joystick movement). • The red LED (g) will be constantly on for machines 9000 & 9002. Setting Control Channels See Graphic: wc_gr002569 The remote control system can be tuned to 3 different channels. This allows three machines to operate in the same area without interference. A channel selection microswitch (e) is included in the CombiControl transmitter module and in the decoder module (d), which is located under the rear panel at the back of the machine. For operation of the remote control systems BOTH switches must be set to the SAME channel. The channel comes preset from the factory to Channel 1. To change the control channels: Remove the four screws holding the CombiControl Transmitter box together and carefully pull it apart. Remove the rear panel covering the decoder module. Press both of the microswitches to change the channel to any of the three channel positions. Make a note of the channel in use, and label the CombiControl Transmitter box and machine to identify the correct channel. wc_tx000475gb.fm 186 RT Repair CombiControl/Electrical System Note: To check that the machine and the CombiControl Transmitter box are set to the same channel, turn them both on. The amber light on the machine will come on but it will NOT blink if the decoder module and the transmitter module are not set to the same channel. wc_gr002569 wc_tx000475gb.fm 187 CombiControl/Electrical System 7.5 RT Repair CombiControl Control Cable See Graphic: wc_gr002570 Removal: Stop and switch off the machine and disconnect the battery. 7.5.1 Remove six M8 screws (1) mounting rear cover (2) to rear frame. 7.5.2 Unscrew connector end of cable (3) from decoder module (4). 7.5.3 Remove two M5 screws (5) and nuts (6) holding nylon clamp (7) around cable (8). Note: You may need to unscrew strain relief from swivel mount to gain slack in cable for easier removal of clamp. 7.5.4 Remove M12 locknut (9) and washer (10) mounting swivel mount (11) to pivot (12). 7.5.5 Unscrew strain relief from swivel mount (11) and pull cable (8) from machine. Installation: Note: If the pivot (12) was removed, it is important to mount the pivot with the window as shown. This will allow the cord to move into the operating and stored positions. 7.5.6 Slide swivel mount (11) over pivot (12) and secure with washer (10) and locknut (9). 7.5.7 Route cable end (3) through swivel mount (11) and plug into decoder module (4). Plug other end of cable into either the transmitter module or the I.R. receiving eye module. 7.5.8 Attach nylon clamp (7) onto cable (8) on underside of frame below pivot (12). Secure clamp with two M5 screws (5) and nuts (6). 7.5.9 Mount rear cover (2) to rear frame using six M8 screws (1). WARNING wc_tx000475gb.fm Before you start the machine, ensure that all tools have been removed from the machine and that replacement parts and adjusters are firmly tightened. 188 RT Repair CombiControl/Electrical System 9 10 11 12 8 6 7 5 3 2 5 1 wc_gr002570 wc_tx000475gb.fm 189 CombiControl/Electrical System 7.6 RT Repair CombiControl Receiving Eye Module See Graphic: wc_gr002571 and wc_gr002572 Removal: 7.6.1 Remove four M5 screws (13) and nuts (14) mounting cap (15), cap mount (16), and bracket (17) to center cover (18). 7.6.2 Remove two M4 screws (19) and nuts (20) mounting receiving eye module (21) to center cover (18). 7.6.3 Remove four M3 screws (22) and nuts (23) mounting connector end (24) to bracket (17). 7.6.4 To test receiving eye (21), note condition of the green LED. With the machine and transmitter “ON”, the control cable must be secured to the connector end (24). The green LED will turn and stay “ON” as long as the transmitter is “ON” and directed toward the receiving eye. If there is no green LED, check the cable to make sure. Installation: 7.6.5 Drop connector end (24) through center cover (18) and mount to bracket (17) with four M3 screws (22) and nuts (23). 7.6.6 Mount receiving eye module (21) to center cover (18) with two M4 screws (19) and nuts (20). 7.6.7 Align holes in cap (15) and cap mount (16). Place over receiving eye module (21) on center cover. 7.6.8 Align holes in bracket (17) with holes of cap (15) and cap mount (16). Secure with four M5 screws (13) and nuts (14). WARNING wc_tx000475gb.fm Before you start the machine, ensure that all tools have been removed from the machine and that replacement parts and adjusters are firmly tightened. 190 RT Repair DECODER MODULE NEGATIVE, GND SIGNAL, I.R. + POSITIVE, 12VDC CombiControl/Electrical System RECEPTACLE 1 1 2 3 4 2 CONTROL CORD 4 #1 GREEN GREEN "A" #2 RED BLACK "B" #4 WHITE WHITE "C" A C B 3 wc_gr002572 13 15 19 21 18 16 21 21 14 22 23 17 wc_gr002571 wc_tx000475gb.fm 191 CombiControl/Electrical System 7.7 RT Repair CombiControl Wiring P R W G/B-W P P B P P G/W G/R G/W Br G/B G/B P R B wc_gr002573 Wire Colors B Black R Red Y Yellow Or Orange G Green T Tan Br Brown Pr Purple L Blue V Violet Cl Clear Sh Shield P Pink W White Gr Gray LL Light blue wc_tx000475gb.fm 192 RT Repair 7.8 CombiControl/Electrical System CombiControl Transmitter Module See Graphic: wc_gr002574 The CombiControl transmitter is not intended to be a serviceable component other than easily replaceable parts such as: • Joystick Knob • Rubber Boot • Battery Pack • Cord Connector • Cap • Neck Strap Inspect the transmitter for visual damage, loose parts or wires, and moisture. If transmitter is found to be damaged in any way and not functioning properly, consult WACKER Corporation for repair options. To gain access to inside of the transmitter: 7.8.1 Remove four screws (1) mounting lower housing (2) to upper housing (3). 7.8.2 Slowly pull the two halves apart being careful not to pull the internal wires A or connector B from the circuit board. CAUTION: If battery wires should be separated from circuit board and reconnected wrong, the transmitter will not draw power from the battery. 3 A Red Brown Blue 2 wc_gr002574 1 wc_tx000475gb.fm 193 CombiControl/Electrical System 7.9 RT Repair Wiring Schematic—Decoder Module, Control Panel & Engine "A" BROWN "B" DECODER MODULE BGLPRTWY- RECEPTACLE NEGATIVE, GND. 1 2 SIGNAL,I.R. + POSITIVE, 12VDC WIRE COLORS INFRA-RED EYE MODULE PANEL MOUNT C B A WHITE "C" 1 4 3 4 2 #1 GREEN GREEN "A" #2 RED BLACK "B" #4 WHITE WHITE "C" CONTROL CORD CONNECTOR END A C B BLACK GREEN BLUE PINK RED TAN WHITE YELLOW Br - BROWN Gr - GRAY Or - ORANGE Pr - PURPLE 3 HYDRAULIC VALVES Or/W REVERSE FORWARD VIBRATION HIGH VIBRATION LOW BRAKE STEERING LEFT STEERING RIGHT HIGH SPEED DECODER HAS 10 SEC SWITCHOVER DELAY FOR EXCITER OUTPUTS A BACKUP SAFETY ENGINE CONNECTOR B REVERSE FORWARD CONTROL LIGHT VIBRATION-HIGH VIBRATION-LOW (NOT USED) BRAKE STEERING-LEFT STEERING-RIGHT HIGH SPEED FUEL VALVES STARTER (NOT USED) 12 V (POSITIVE) GROUND 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 Or Y G W Gr P A GLOW PLUG SWITCH B B TILT T/B Pr L Y/Or T B A B C T/R C W D 82 B Br Resistor G/W P E OFF A B ALT HOUR ON KEYSWITCH G/B CONTROL R Br Br OIL W TO STARTER ‘30’ BATTERY 12 VDC Br P F R REVERSE POLARITY MODULE R G/R B ENGINE CONNECTOR Pi A B B B STARTER RELAY C T R W D E GLOW PLUG RELAY T G/W ANTI-RESTART MODULE F FROM BATTERY G/R ENGINE OIL PRESSURE R R 30 G 50 STARTER ALT. G B L C QSD FUEL VALVE GLOW PLUG Br VOLTAGE REGULATOR wc_gr002575 wc_tx000475gb.fm 194 Threadlockers and Sealants Threadlockers and Sealants Threadlocking adhesives and sealants are specified throughout this manual by a notation of “S” plus a number (S#) and should be used where indicated. Threadlocking compounds normally break down at temperatures above 175°C (350°F). If a screw or bolt is hard to remove, heat it using a small propane torch to break down the sealant. When applying sealants, follow instructions on container. The sealants listed are recommended for use on Wacker equipment. TYPE ( ) = Europe Loctite 222 Hernon 420 Omnifit 1150 (50M) COLOR USAGE Purple Low strength, for locking threads smaller than 6 mm (1/4”). Hand tool removable. Temp. range: -54 to 149°C (-65 to 300°F) Blue Medium strength, for locking threads Loctite 243 Hernon 423 larger than 6 mm (1/4”). Omnifit 1350 (100M) Hand tool removable. Temp. range: -54 to 149°C (-65 to 300°F) Loctite 271/277 Red High strength, for all threads up to 25 mm Hernon 427 (1”). Omnifit 1550 (220M) Heat parts before disassembly. Temp. range: -54 to 149°C (-65 to 300°F) Loctite 290 Green Medium to high strength, for locking Hernon 431 preassembled threads and for sealing Omnifit 1710 (230LL) weld porosity (wicking). Gaps up to 0.13 mm (0.005”) Temp. range: -54 to 149°C (-65 to 300°F) Loctite 609 Green Medium strength retaining compound for Hernon 822 slip or press fit of shafts, bearings, gears, Omnifit 1730 (230L) pulleys, etc. Gaps up to 0.13 mm (0.005”) Temp. range: -54 to 149°C (-65 to 300°F) Loctite 545 Brown Hydraulic sealant Hernon 947 Temp. range: -54 to 149°C (-65 to 300°F) Omnifit 1150 (50M) Loctite 592 White Pipe sealant with Teflon for moderate Hernon 920 pressures. Omnifit 790 Temp. range: -54 to 149°C (-65 to 300°F) Loctite 515 Purple Form-in-place gasket for flexible joints. Hernon 910 Fills gaps up to 1.3 mm (0.05”) Omnifit 10 Temp. range: -54 to 149°C (-65 to 300°F) PART NO. – SIZE 73287 - 10 ml 29311 - .5 ml 17380 - 50 ml 29312 - .5 ml 26685 - 10 ml 73285 - 50 ml 28824 - .5 ml 25316 - 10 ml 29314 - .5 ml 79356 - 50 ml 26695 - 6 ml 73289 - 50 ml 70735 - 50 ml Threadlockers and Sealants Threadlockers and Sealants (continued) Threadlocking adhesives and sealants are specified throughout this manual by a notation of “S” plus a number (S#) and should be used where indicated. Threadlocking compounds normally break down at temperatures above 175°C (350°F). If a screw or bolt is hard to remove, heat it using a small propane torch to break down the sealant. When applying sealants, follow instructions on container. The sealants listed are recommended for use on Wacker equipment. TYPE ( ) = Europe COLOR USAGE Loctite 496 Clear Instant adhesive for bonding rubber, metal Hernon 110 and plastics; general purpose. Omnifit Sicomet 7000 For gaps up to 0.15 mm (0.006”) Read caution instructions before using. Temp. range: -54 to 82°C (-65 to 180°F) Loctite Primer T Aerosol Fast curing primer for threadlocking, Hernon Primer 10 Spray retaining and sealing compounds. Must Omnifit VC Activator be used with stainless steel hardware. Recommended for use with gasket sealants. PART NO. – SIZE 52676 - 1oz. 2006124-6 oz. Torque Values Torque Values Metric Fasteners (DIN) TORQUE VALUES (Based on Bolt Size and Hardness) 8.8 10.9 WRENCH SIZE 12.9 Size Nm ft.lb. Nm ft.lb. Nm ft.lb. Metric Inch Metric Inch M3 1.2 *11 1.6 *14 2.1 *19 5.5 7/32 2.5 – M4 2.9 *26 4.1 *36 4.9 *43 7 9/32 3 – M5 6.0 *53 8.5 6 10 7 8 5/16 4 – M6 10 7 14 10 17 13 10 – 5 – M8 25 18 35 26 41 30 13 1/2 6 – M10 49 36 69 51 83 61 17 11/16 8 – M12 86 63 120 88 145 107 19 3/4 10 – M14 135 99 190 140 230 169 22 7/8 12 – M16 210 155 295 217 355 262 24 15/16 14 – M18 290 214 405 298 485 357 27 1-1/16 14 – M20 410 302 580 427 690 508 30 1-1/4 17 – 1 ft.lb. = 1.357 Nm * = in.lb. 1 inch = 25.4 mm Torque Values Torque Values (continued) Inch Fasteners (SAE) Size Nm ft.lb. Nm ft.lb. Nm ft.lb. Metric Inch Metric Inch No.4 0.7 *6 1.0 *14 1.4 *12 5.5 1/4 – 3/32 No.6 1.4 *12 1.9 *17 2.4 *21 8 5/16 – 7/64 No.8 2.5 *22 3.5 *31 4.7 *42 9 11/32 – 9/64 No.10 3.6 *32 5.1 *45 6.8 *60 – 3/8 – 5/32 1/4 8.1 6 12 9 16 12 – 7/16 – 3/32 5/16 18 13 26 19 33 24 13 1/2 – 1/4 3/8 31 23 45 33 58 43 – 9/16 – 5/16 7/16 50 37 71 52 94 69 16 5/8 – 3/8 1/2 77 57 109 80 142 105 19 3/4 – 3/8 9/16 111 82 156 115 214 158 – 13/16 – – 5/8 152 112 216 159 265 195 24 15/16 – 1/2 3/4 271 200 383 282 479 353 – 1-1/8 – 5/8 1 ft.lb. = 1.357 Nm * = in.lb. 1 inch = 25.4 mm Wacker Construction Equipment AG · Preußenstraße 41 · D-80809 München · Tel.: +49-(0)89-3 54 02 - 0 · Fax: +49 - (0)89-3 54 02-3 90 Wacker Corporation · P.O. Box 9007 · Menomonee Falls, WI 53052-9007 · Tel. : (262) 255-0500 · Fax: (262) 255-0550 · Tel. : (800) 770-0957 Wacker Asia Pacific Operations · Skyline Tower, Suite 2303, 23/F · 39 Wang Kwong Road, Kowloon Bay, Hong Kong · Tel. +852 2406 60 32 · Fax: +852 2406 60 21