Neco NM 692 Autopilot Manual
Transcription
Neco NM 692 Autopilot Manual
rrt ,l I \_ lP J I rrr 1; IIMuub 892 Plt0I AUT0MAIIG rrrrt lNSIAttAIl0ltl & 0PERATlltl0 lNsrnuGIl0lls NECO MARINE IT]||ITED Walton Road, Eastern Road, Gosham, Portsmouth, Hants. Telex 86149 Tel.: Cosham (07018) 70988. The Normand ElectricalGroup of Companies THE N.M.692 AUTOMATICPILOT BasicUnits OptionalExtras Remote Steering Control Wind Vane Steering System Masthead Unit Switch Unit Crash Switch Hold on Switch lsolator Switch Control Unit Crash Switch Relay Box =={- BudderFeedbackUnit THE NECO NM 69/2 AUTOMATIC PILOT . INSTALLATION INSTRUCTIONS L I S TO F U N I T S sEcTloN 1 THE CONTROL UNIT. The unit is suppliedwith brackets(for shelf mountingi and clamping plates (for panei mo[nting], together with a removeableneoprenebezel trim. Two long plated boltt are suppliedfor shelf mounting and two short bolts for panelmounting.Cablesreqtrired for inter connectingwith other units are zupplied fitted tc a plug-in connector, screwedto the rear of the control unit casing.it is normally supplied with three cables factory fitted, and two socket connections. One socket is used when a Remote SteeringContrc! is lined and the other when the Wind Vane SteeringSystemis fitted. The blankingplugs should not be removed unlessa Remote SteeringCcntrol and/or a Wind Vane SteeringSystemare fitted. Careshouldbe taken that the corrnectcrrs and that it is alwayspluggedin so that in the plugin unit arenot damaged, the cablesemergetowardsthe centreof ihe controi unit. Apart from panel from illuminationlamps,which run at battery voltageiand are accessible the control unit panel),the unit is identicalfor both 12 and 24 volt D.C., Strouldthe suppliesand may be usedwith a Drive Unit of either vr.rltage. shouldbe madefor unit be sited in an exposedposition somearrangements coveringwhen not in use. l.l I n s . mms 244 B 1 2 % 324 c 5% t32 r68 D 6\ 102 E 4 A 97t F 13/ t/6 51 J 12.7 l1 25.4 44.4 K h t I M lv 'GYo 35 G 2 Y. lz Jn A^O,. 6.3 -G-j \ Panel mouilrng clarhp Ft-i F I G . 1 C O N T B OU L N I TD I M E N S I O N S Remote Steering control socket Wind vane steering system NOTE A r u b b e rp l u g i s f i t t e d socket. to the R.S.C. T h e s p e c i a l l yw i r e d p f u gi n t h e w i n d vane socket should NOT be ren'roved u n l e s st h e w i n d v a n e system is fitted. 1 . 2 COMPASSUNIT. The CompassUnit is basedon the well proven NM 3 Neco Magnetic Transmitting Compass.lt can be mounted in an exposed position sincethe unit is watertight and tested to withstand temperatures of +600 to -20o centigradeand thus strould be possibleto find a stritable site where magneticdeviationwill be srnall.The gimbal bracket hasslotted holes to allow the compassto be sleraredin order to compensatefor 'A' coefficient deviation. 1 metre of tinsel cable is fitted to the compass, with the lead ends terminated in crimped connectorsfor direct insertion into a connectorbox. This lengthof cableshould not be shortened. r__r____- 1 . 3 NECO ElectricDRIVE UNIT consistingof a Neco 12 lor24l volt DC 1/8 h.p.. ventilatedmotor, drivinga 5/8" diametershaftat 17Yzor 35 r.p.m. througha type S.W.gearbox.Theshaftismilledfor a 3/16" x 3/16" x 1" key. For safetyin transitthe gearboxissupplieddrainedof oil. Incorporatedin the gearbox is an electro magnetic multi-tooth clutch, the feedback transmitterand limit switches.Underthe top coverof the unit are located circuitry,all fusesand a sixteenway two armaturerelays,their suppression connectionterminal block. In the 24 volt unit the motor windingsare appropriateto the voltage,but a droppingdiode is incorporatedin the supply to the electronicunits, which are commonto both voltages.Motor Batteryleadsarefactory fitted. Units are interchangeable. tl n -----l -f B EARTH O I LF I L L E R O I LL E V E L I rns mm rns mm A 5 118 130 F 2 3/8 60 B 8.66 220 G 5/8 16 c I 240 H 114 b D 5 1/21 140 J 4 318 111 E 1 5/8 41 K 7 178 7/16 B c D E F Approximate A weight t n s . 9U 12 1ILo 3tq 5 h 4k 4 0l b s ( l 8 k s s ) m m s . 2 3 5 305 261 8 2 ' 6 140 114 F I G . 3D R I V EU N I T D I M E N S I O N S 1 . 4 C O N N E C T O RB O X E S .O n e i s s u p p l i e df o r c o n n e c t i n gN o . 1 C a b l ef r o m the control unit to compass. F I G . 2 C O M P A S SD I M E N S I O N S t REMOTE STEERING CONTROL (optional extra). This unit is supplied fitted with 5 metres of trailing cable, the end of which terminates in a plug type R.P.C. 12P-6 for fitting into the Remote Steering Control Socket on the Control Unit, Plug-in connector. When an extra length of cable is required for the R.S.C. a special connector box fitted with "hold-on" switch facility is supplied with the extra cable. 1 . 6 H O L D - O N S W I T C H ( o p t i o n a l e x t r a ) l s s u p p l i e df o r u s e w i t h t h e R e m o t e S t e e r i n gC o n t r o l . T h e H o l d - o n S w i t c h i s f i t t e d t o a s p e c i a lc o n n e c t o rb o x . The switch in the'ON' position allows the operator to use the Remote Steering Control irrespectiveof the press-onswitch fitted to the Remote S t e e r i n gC o n t r o l . 't .1 R U D D E R F E E D B A C K U N I T ( o p t i o n a l e x t r a ) T h e R u d d e r F e e d b a c kU n i t w i t h m e c h a n i c a l i n k a g et o t h e r u d d e r a r m , i s a v a i l a b l ef o r ' s l o p p y ' s t e e r i n g m e c h a n i s m sa n d f o r h y d r a u l i cs y s t e m ss u b j e c tt o s l i p . E l e c t r i c a ll e a d sf r o m t h i s u n i t r e p l a c et h o s e f r o m t h e n o r m a l f e e d b a c kt r a n s m i t t e r a t t h e d r i v e u n i t . F o r d e t a i l so f i n s t a l l a t i o ns e es e p a r a t ei n s t r u c t i o n s S . e c t i o n6 . 'Crash' 1 . 8 'CRASH' SWITCH (optional extra) The Switch is an emergency device by which means the Automatic Pilot may be switched off at a r e m o t e s t a t i o n , f o re x a m p l e- a f l y i n g b r i d g e .T h e ' C r a s h ' s w i t c hc o m p r i s e s t w o u n i t s ,t h e p u s hb u t t o n u n i t f o r m o u n t i n g a t t h e r e m o t e s t a t i o n ,a n d t h e r e l a y u n i t f o r r n o u n t i n gn e a r t o t h e d r i v e u n i t o f t h e a u t o m a t i cp i l o t . A s i n g l e o p e r a t i o n o f t h e p u s h b u t t o n s w i t c h w i l l c a u s et h e r e l a y u n i t t o s w i t c h t h e p i l o t o u t o f o p e r a t i o n ,a c o n d i t i o nw h i c h w i l l r e m a i nu n t i l t h e s y s t e mi s r e s e tb y s w i t c h i n g ' O f f ' a tt h e C o n t r o l U n i t , S w i t c h i n g ' O n ' a t t h e C o n t r o l U n i t w i l l r e s t o r en o r m a l p i l o t o p e r a t i o n . 1. 9 C O M P A S SA D J U S T M E N T A l D . T h i s d e v i c e ,n o r m a l l y r e q u i r e df o r C o m p a s s A d j u s t e r s a n d I n s t a l l a t i o n C o n t r a c t o r s ,i s t e m p o r a r i l y c o n n e c t e d t o t h e A u t o m a t i c P i l o t . l t v i s u a l l y i n d i c a t e sw h e n t h e P i l o t i s i n i t s ' n e u t r a l ' p o s i t i o n . l t p r o v i d e s a r a p i d m e t h o d o f o b t a i n i n g c o m p a s s h e a d i n g sf o r p r e c i s ec o m p a s sa d j u s t m e n t . 1 . 1 0 I S O L A T O R S W I T C H B O X ( o p t i o n a l e x t r a ) . A f u s e ds w i t c h b o x , w i t h ' O n ' i n d i c a t o r l a m p f o r c o n n e c t i n gt h e a u t o m a t i c p i l o t p o w e r s u p p l y l e a d st o the batterysupply. 1.11 WIND VANE STEERING UNIT (optionalextra). This unit can be fitted to all NM 692 Systems TheNecoNM692AutomaticPilot applies 1.2 SPROCKETAND CHAIN DRIVE part of the steeringmechanismbysprocket rotary some turning by rudder where andchaindrivenby the DriveUnit. For normalsteeringinstallations, side of 40o either to approximately the rudder movement is restricted such that be should pinion teeth to sprocket teeth of ratio the amidships (9 the output shaftof the drive unit is rotated through 47,Iurns turns when is rudder movedfrom the when 35 r.p.m. motor is usedl or slightly more. way' the other hard-over to hard-overone way As the Drive Unit also containsthe FeedbackTransmitterand Limit Switches,it is importantthat when selectingthe sprocketratio the operation of the Limit Switchesis taken into consideration'They are factory set to operate at 2 turns either side of the neutral position of the 17y2r.p.m., Drive Unit shaft, and 4 turns either side of the neutral position of the 35 r.p.m.,Drive Unit shaft. Thus when deciding on the sprocket ratio it is important that the chain drive arrangementis such that the drive unit shaft rotatesthrough at least the amidshipsposition and the point at which the rudder 2Yoturnsbetween comesagainsteachof its stops,or 4% turnswhen the 35 r.p.m.driveunit isused.Whilstthe limit switchesmustcut off powerto the driveunit before desirablethat the switches the rudder reachesits stops. it is nevertheless shouldnot be constantlyoverriddenwhen steeringmanually' VARIATIONS FROM NORMAL - Although 4L turns (9 turns when a 35 r.p.m. drive unit is used) of drive motor shaft are standardthere are the sprocketratio caseswheremore turns may be desirable.By increasing a t t h e r u d d e rw i l l i n c r e a sael t h o u g ht h i s w i l l r e d u c e t h e t o r q u ea v a i l a b l e the rate of applicationof the rudder.There is, however,a certainclassof steeringmechanism,designedfor constanttorque at the steeringwheel regardless of rudder position, with which it is very desirablethat the for instance,is based Mathwaysteering, sorocketratio shouldbe increased. on this principle.Thesesystemsare non-linearin operationand result in r a t h e rc o a r s ei . e . ,s e n s i t i vset e e r i n ign t h e r a n g en e a ra m i d s h i p sI t. i s i n t h i s r a n g e t h a t t h e a u t o m a t i cp i l o t n o r m a l l yf u n c t i o n sa n d i n c r e a s i n tgh e s p r o c k e rt a t i o s o a s t o g i v eu p t o 6 ( 1 2 )Q r i v eu n i t l u r n sm a y b e b e n eifc i a l . l , , , .P" i t c hc h a i ni s r e c o m m e n d e pd a, r t i c u l a r l iyf t h e a u t o m a t i cp i l o t i s c a l l e d where spacels upon to work near the limit of its power. Nevertheless proved acceptable' has chain Pitch gear 3/8" light limited,and the steering SeeTablesA&8. 5 l- ) t, S I T I N GT H E U N I T S sEcTloN2 T A B L EA 1 1 7 %r . p . m . ) Steering Gear Turns (Hard over to Hardover) 22\Z,z23as 11\1\12 s\3Lz qaLoq\4\ RADIO FREOUENCY INTERFERENCE the automatic pilot It is important when deciding on the position of power supply cables that and unit inter run of the planning tnO ,ni,t, the radio transmitter consideration should be given to the proximity of to them. cables its associated and reasonableinternal Although the NM692 is fully suppressedagainst any be induced if pilot to R. F. for possible it i. radio frequency oi-"*#"rf power carrying or aerial cables are run in the same loom as the radio these can act as a .uOf.r, or those containing general ships wiring, as even Radio ReceiverAerial and cross coupling will be inevitable' cables Therefore as a general rule all pilot inter unit and power supply other possible from as far away as looms and should be run in separate cables. 2.2 C o N T R O L U N I T . T h i s m a y b e e i t h e r b r a c k e tm o u n t e d o r p a n e l / b u l k h e a d m o u n t e d . I n t h e f o r m e r c a s et h e c l a m p i n g p l a t e s a r e n o t r e q u i r e da n d t h e two longer bolts should be used. For panel/bulkheadmounting the n e o p r e n eb e z e l t r i m i s s t r i p p e d o f f , ' a n d t h e c l a m p i n g p l a t e s a n d s h o r t e r bolts are used. T h e c o n t r o l U n i t m u s t b e r e a s o n a b l ya c c e s s i b l et o t h e h e l m s m a n a n d p r e f e r a b l yw i t h i n h i s r a n g e o f v i s i o n w h i l s t l o o k i n g o u t a h e a d .I n m a n y c a s e si t n e e d n o t a c t u a l l y b e w i t h i n r e a c h o f t h e s t e e r i n gw h e e l a n d t h e h e l m s m a ns h o u l d n o t h a v e t o l e a n a c r o s st h e w h e e l i n o r d e r t o r e a c h t h e unit, particularly if the wheel is of the spoked variety. There is no r e s t r i c t i o nr e g a r d i n gt h e p r o x i m i t y o f t h e u n i t t o t h e s t e e r i n gc o m p a s s ' 5 21 Numberof teeth on Steering Gear Sprocket 2.1 25 z3 11 IJ 51 13 t5 19 to 11 21 zc 19 13 l5 17 t7 21 ZJ t'2 l9 21 z5 ZJ 38 2 1 25 Numberof teeth on DriveUnit sprocket T A B L EB ( 3 5 r . p . m . ) S t e e r i n g G e a r T u r n s ( H a r do v e r t o H a r do v e r ) 2 2Laz\z3a 3 3La3Lt 4 5 o l\t% N u r n b e r o fza teeth on JO Steering 57 G e ar S p r o c k e t It) 1 3 13 15 13 l5 17 13 15 17 r9 21 )'\ l3 IY 19 t3 21 zl 25 ?q Numberof teeth on Drive Unit sprocket COMPASS wnere: T h e a b o v et a b l e sa r ed e r i v e df r o m t h e f o r m u l a : No. of teeth on DriveUnit Sprocket= No. of teethon SteeringGearSprocketX SteerinqGearTurns(H.O.to H.Ol 9(or4%l d. e. A greatersprocketratio (i.e.fewerteethon drivesprocketand/ormore teethon the steeringgearsprocket)may be requiredin craftwith "lively" steeringcharacteristics or with Mathwaysteeringgear.{Seepage5.} A site should be chosen,either above deck or below M i n i m a l d e v i a t i o nw i l l b e e x p e r i e n c e d ' T h e r e i s l i t t l e r i s k o f m a g n e t i co r f e r r o u s m a t e r i a lb e i n g l o d g e d in the proximity of the comPass. Movement of the craft is minimal' Subiect to (a) this will n o r m a l l y b e l o w d o w n a n d n e a rt h e c e n t r e l i n e o f t h e c r a f t . There is no restriction to the movement of the compasswithin its gimbals. T h e u n i t i s u n o b t r u s i v ea n d u n l i k e l y t o b e t o u c h e d b y m e m b e r s of the crew. 2.4 CONNECTORBOXES. Theseshould preferablybe sited under cover. Securingholes are accessiblewhen the cover plate is removed.one connectorbox is normallysuppliedand is usedto connectNo. 1 cableto the Compass. ) o Ct':ntrciunit Ns I cable ' t-i. ! Remotesteerinq ! ! control ti r, r-- 6 way connector box Cable Nn 1 Compass MetricSize Length Mef ra-s 0 S m n l1 6 / 0 ' 2 0 m m l0 R I 3 x 0 . 2 m l 7r r/ 0 ' 2 0 m m 4 5-12v 6-l2v 5-24v 6-24v Earth 5 l.0mm'32/0'20mm 5 5 l.5mnf30/0'25nr 5 l . O m m ' 3 2 / 0 ' 2 0 m5n 5 l'5mm'30/0.25m Mm i n.i m u n CABLEINTERCONNECTIONS N.M.69/2 igiiii:i ff:iliilii;i !iiiiI;a iil;*eisryiii|iiilEiI, iE:g|:l; ;;ig5=E' igiii*Fii! iiE!: i:riiifr i 3;Er;i-IE:fiIiiii:;F:EiEEi+iAg Eiii i;i;;EiF Ii;iEiiiggiiiiiiii Ii:EF;:E IEiEEEg;:igiIIEIgii rs a. SECTION 3 3.1 3.2 CONNECTING UP THE AUTOMATIC PILOT 3.3 ,opened WARNING. The Control Unit should not be up, by other than authorised servicing personnel. Attention is drawn to Section 2.1 Radio Frequency Interference. Starting from the Control Unit all cables should be routed as described hereafter and securely cleated. Care should be taken to ensure that no undue strain is placed on the cable glands. Lengths of the cables are nol critical but power-carrying leads should be no longer than necessary. CAUTION. To avoid rotation of the cables and possible strain it is recommended that all cable glands be tightened BEFORE connecting up the lead-outs.Referring to the Cable Interconnectionsdiagram Figure 4. No. 1 CABLE (6 core 0.5mm2 16/0.20mm unscreened) The BLACK lead of this cable is not used and may be cut short. The cable is 10 metres long and should be led to the 6 way connector box sited close to theCompass The cable is cut at this position and connected through the connector box asshown in Figure 5. The trailing lead from the Compass is 1 metre long and should not be shortened. The lead ends ol this cable are terminated in crimped connectors for direct insertion into the 6 way connector box. The trailing lead from the Compassshould notbe connected at this stage. I I I No. 3 CABLE (4 core 020mm). Only suppliedwhen a Remote Steering Control is fitted. 5 metres of cable is supplied as standardfitted to the Remote Steering Control with the necessaryplug for direct connection into the plug box on the rca( of the Control Unit as shown in Figure 6. Controlunit Remote steering control N o t e ' c a r e s h o u l d b e t a k e n t h a t t h e R S C .p l u g i s n o t i n s e r t e dr n t o t h e w i n d v a n e s o c k e t . FIG.6 3.4 lf a 'hold on switch' or extra cableare providedfor the RemoteSteering C o n t r o l a s p e c i a lb o x f i t t e d w i t h ' h o l d o n s w i t c h ' i s s u p p l i e da n d i s connectedasshownin Figure7. cablelength as ordered Plug &_socket F I G . 5 C O M P A S SC O N N E C T O RB O X Plug& socket I FControl unit I Na 3 cable to remote steeringcontrol 5 metres (standardcable length) FIG.7 10 11 3.5 No. 2 CABLE (8 core O.5mm2 l6/0.2Omml and No. 4 Cable (3 core tmm2 3zll.Z)mm are run to the drive unit; No. 4 cable is a power carryingcable. Removethe top cover of the Drive Unit and cut No. 2 Cableand No. 4 cabletothe reguiredlength,leavingsufficient slackto allow the Drive unit to be movedby smallamountswhen the roller chainis eventuallyconnectd. It is recommendedthat the lead-outsbe tinned. Decide whether standard rotation or Reverse rotation is required. ("Standard' Rotation is zuch that, to apply starboardrudder, the outpui shaft must rotate anticlockwisewhen viewedfrom its exposedend). Figure8 showsthe order in which the lead-outsshould be enteredinto the l6-way terminal block for standardrotation. Figure9 for reverserotation. lf, however.a Rudder Feedbackunit is to be fitted, connectionsshould be as in Figure8 for both Standardand Reverserotation. 3.6 REVERSERorATloN oF DRIVE uNtr. ln someinstailations it may be necessaryfor the Drive Unit output shaft to rotate in the reversedirection. No. 2 cable from the control Unit to the DriveUnit is then connectedin accordancewith Figure 9. This alteration may necessitatethe iesettingof the limit switches.Theseare locatedunder the cylindricalcover adjacentto the earth stud of the Drive Unit. 1 -p 1 2 CORE 2 3 4 LLOW BLACK 5 6 7 8 I 10 11 12 13 RED BTUT 14 15 16 rI 2 3 BROWN 4 EROWN 5 Ltov\ BLUE Il WHITE I EROWN ffiffi VIOTT.T BLACK RED YELLOW 6 7 8 I 10 11 12 13 't1 15 16 ffiffi FIG.9 ReverseRotation FIG.8 Standard Rotation 12 13 3.7 POWERSUPPLIES.The Drive Unit is suppliedwith two pairsof power leads factory fitted, as shown in Figure 4. No. 5 cable - The Control PowerCableand No. 6 - The DriveUnit PowerCable.Nos.5 and 6 cable must not be connectedto independentbatteries,unlesseither the negative or positiveterminalsof the two batteriesarecommon.lt is recommended that both thesecablesshouldbecapableof beingisolated, eachwith its own lsolator Switch (10 ampl An lsolator Switch Box can be suppliedas an optionalextra and is wired up in accordance with Figure10. 3.9 No.6GABLE, DRrvE uNrr powER CABL_E(2-core1.5mm230/o.25mm for 12 volt installations) or (2-corel.0mm2 32/O.2Omifor 24 vott installations)may be run to the battery direct or througha distribution board capableof handling30 amps (12 volts installationilor l5 amps (24 volt installations).In either caseit is recommended that this be isolatedby a separateswitch. ln the event of a relay stickingin the on positionit is possiblefor the DriveUnit to run evenwith the control unit srvitched off . By f ittingthe rsoratorSwitchin the DriveUnit powercabre,possibledamage to the DriveUnit can be prevented. 3.10 THE EARTH STUD. (locatedon the sideof the DriveUnitl must now be connectedto the ship's Earth or to the terminalof the battery which is connectedto the Ship's Earth. CONTROLPOWER CAALE Irom batiery 3. l1 'CRASH'swrrcH (if fitted) Disconnectthebattery,cut the 2-core1.0mm2 32/0.2omm cabre No. 5 cabre at the chosenposition rno-.onn""t tn. sectionof cablefrom the control Unit lsolatorinto terminalsI and 2 of the Relay Unit, connect the sectionof cable from the Drive unit into terminals 5 and 6, and using a length of 0.5mm2 .16i0.20mm l i n k t e r m i n a l s3 a n d 4 o n t h e R e l a y U n i t t o t e r m i n a l s3 a n d 4 o n t h e P u s hB u t t o nU n i t . F i g u r el l . D R I V EU N I T POWERCABLE lrom baitery C O N T R O LP O W E R CABLE(No.5) t o d r i v eu n i t Terminal7 is usedonly with solenoidValve-operated Hydraulicsystems. (Seesection7) D R I V EU N I T P O W E RC A B L E( to driveunit C o n t r o l U n i t l s o l a t o r o r l s o l a t o rS w i t c h B o x F I G . I OI S O L A T O R S W I T C HB O X 3.8 14 No. 5 CABLE, CONTROL POWER CABLE (2-core 1mm2 32lO.2}mml m u s t a n v a r i a b l yb e r o u t e d d i r e c t t o t h e b a t t e r v t e r m i n a l s a n d n e v e r v i a a c a b l e w h i c h i s s u p p l y i n g p o w e r t o t h e d r i v e u n i t o r o t h e r c i r c u i t s ,a s s h o w n i n F i g u r e 4 . F a i l u r et o d o t h i s w i l l r e s u l t i n p o o r p i l o t p e r f o r m a n c e , a st h e p u l s eo f c u r r e n tt a k e n b y t h e p i l o t m o t o r b y s w i t c h i n g ( t o g e t h e rw i t h t h e r e s i s t a n c ea, n d p o s s i b l y m o r e i m p o r t a n t , t h e i n d u c t a n c eo f t h e c a b l e ) can produce a voltage drop of several volts for a few milli-secondsover o n l y a s h o r t l e n g t h o f c a b l e ,a n d w i l l c a u s er e l a y f l u t t e r . T h e C o n t r o l U n i t lllumination is not controlled by the Offlon switch; this can be switched o f f b y t u r n i n g t h e b r i l l i a n c ec o n t r o l h a r d a n t i c l o c k w i s e . ELUE CORE FIG.ll CONNECTIONSFOR CRASH SWITCH MK.2 15 sEcTroN4 L I N I N G U PT H E S Y S T E M 4 . 1 L I N I N G U P O N I N S T A L L A T I O N w i t h F e e d b a c ku n i t i n s t a l l e di n t h e D r i v e Unit - see separateinstructions for Rudder Feedback Units. E n s u r et h a t t h e c h a i n d r i v e i s d i s c o n n e c t e dl r o m t h e D r i v e U n i t . II Check that (a) No. 1 cable from the Control Unit is connected into the appropriate connector boxes as shown in Figure 5. I ( b ) T h a t t h e r a i l i n g ' c a b l e f r o m t h e C o m p a s sh a s N O T been connected into the connector box. 3. i P o s i t i o nt h e C o n t r o l s a s f o l l o w s See Sensitivity - Maximum (fully clockwise) I 'l RudderControl 0 igure | F ^12 ) TrimControl - 0 t 10. I I I I v T h e D r i v e U n i t o u t p u t s h a f t s h o u l dn o w r u n t o i t s ' n e u t r a l 'p o s i t i o n . U s i n g t h e T r i m C o n t r o l , c h e c k t h e d i r e c t i o no f r c t a t i o n , r e t u r n t o 0 . lvlark the output shaft so that it can be returnedto this position if i n a d v e r t e n t l yr o t a t e d . l t i s v i t a l t h a t t h e c o n t r o l s b e s e t e x a c t l y a s stated in 2 above. I ci 111 \ ILLUNiIINATION 'OFF'the p i l o t a t t h e C o n t r o lU n i t a n d s w i t c h ' O F F ' b o t h Switch l s o l a t o r S w i t c h e s .L o c k t h e r u d d e r e x a c t l y a t a m i d s h i p s C . o n n e c tu p t h e r o l l e r c h a i n t o t h e D r i v e U n i t p i n i o n ,w i t h s h a f t i n i t s ' n e u t r a l ' p o s i t i o n , a n d t h e s t e e r i n gg e a r s p r o c k e t d r i v e . 4,2 Free the steering gear and then close the lsolator switches and C o n t r o l U n i t s w i t c h . T h e e l e c t r o - m a g n e t iccl u t c h s h o u l d t h e n e n g a g e a n d l o c k t h e p i l o t a n d s t e e r i n gg e a r i n t h e a m i d s h i p sp o s i t i o n . M o v e t h e T r i m C o n t r o l a n d C h e c k t h a t t h e r u d d e r m o v e sa c c o r d i n g l y . Switch 9 16 'OFF' G SENSITIVITY T O C H E C KI N S T A L L A T I O N O F ' C R A S H ' S W I T C H 1. R e c o n n e ct h t e Batterv. 'ON' 2. Switch J. Put the OFF/ON switch on Control Unit to'ON'and check the A u t o m a t i c P i l o t f o r n o r m a l o p e r a t i o n ,t h i s m a y b e d o n e b y o p e r a t i n g t h e T r i m C o n t r o l a l t e r n a t e l yP o r t a n d S t a r b o a r d . 4. Operate the 5 C h e c k t h a t t h e A u t o m a t i c P i l o t i s i n o p e r a t i v eb y m o v i n g t h e T r i m Control to Port and Starboard. b. Put OFF/ON switch on the Control Unit to OFF, by now switching 'ON'at t h e C o n t r o l U n i t , n o r m a l p i l o t o p e r a t i o nw i l l b e r e s t o r e d . t h e p i l o t a t t h e C o n t r o lU n i t . Now connect the trailing cable from the Compass into the 6 way terminal block as shown in Figure 5. lt should be noted that these leads are terminated in crimped connectors for direct insertion into the 6 pin connector box. lt is NOT recommended that this length of cable be shortened. /A) orrLK7 on F I G . 1 2 C O N T B OPLA N ES L E T T I N GFSO RI N S T A L L A T I O AN LIGNMENT B o l t t h e D r i v e U n i t h a r d d o w n s o t h a t t h e c h a i n t e n s i o n i s s i m i l a rt o t h a t i n a n e w b i c y c l ec h a i n . M a n u a l l y c h e c k o p e r a t i o n o f t h e l i m i t switches. See Section 4.3 t RUDDER 18 I I 5'' 6 '1" r ntv" 7 r , Ensure that the Drive Unit output shaft is free to rotate. Switch 'ON' t h e D r i v e U n i t a n d C o n t r o l U n i t l s o l a t o rs w i t c h e sS. w i t c h ' O N ' the Automatic Pilot at the Control Unit. I i *:s. ,;0: I i I Check that the craft is in a berth not subject to magnetic interfererrce, e.g., is not alongsidea steel hulled vessel,steel pontoon, etc., and set t h e C o u r s e S e t t e r o n t h e C o n t r o l U n i t t o s h i p ' s h e a d m a g n e t i c .S e t the Rudder Control to 10 and Trim Control to 0. lf the drive unit m o v e s t h e r u d d e r , s l e w t h e C o m p a s sU n i t u n t i l t h e d r i v e u n i t r e t u r n s t h e r u d d e rt o i t s a m i d s h i pp o s i t i o n .B o l t t h e C o m p a s sU n i t h a r d d o w n . I I b o t h l s o l a t o rS w i t c h e s . 'Crash' Switch oush button. 17 r 4.3 R E S E T T I N G T H E L I M I T S W I T C H E S( S v s t e m sN O T f i t t e d w i t h R u d d e r F e e d b a c kU n i t ) . I n s o m e i n s t a l l a t i o n sa n d w h e r e r e v e r s er o t a t i o n o f t h e D r i v e U n i t o u t p u t shaft is required the Limit Switches may have to be reset. 4.5 T h i s s h o u l d b e c a r r i e do u t a s f o l l o w s : 'OFF'. 1. P u t t h e C o n t r o l U n i t a n d l s o l a t o rS w i t c h e st o z. R e m o v e t h eL i m i t S w i t c h c o v e r p l a t e f r o m t h e s i d eo f t h e D r i v e U n i t . T h i s w i l l e x p o s et h e t w o l i m i t s w i t c h e sa n d t h e i r r e s p e c t i v eo p e r a t i n g cams. M a n u a l l y o p e r a t e t h e s t e e r i n gg e a r u n t i l t h e r u d d e r c o m e s o n t o i t s p h y s i c a l s t o p , i t w i l l b e n o t i c e d t h a t a s t h e s t e e r i n gg e a r i s o p e r a t e d o n e o f t h e c a m s m o v e st o w a r d s i t s r e s o e c t i v el i m i t s w i t c h . 4. M a n u a l l y t u r n t h e s t e e r i n gg e a r i n t h e o p p o s i t e d i r e c t i o n u n t i l t h e r u d d e r i s c l e a r o f i t s p h y s i c a ls t o p ( t h e p o s i t i o n i n w h i c h t h e L i m i t S w i t c h i s r e q u i r e d t o o p e r a t e )r e s e tt h e c a m d e t e r m i n e di n 3 , s o t h a t i t o p e r a t e st h e L i m i t S w i t c h . T h e c a m s a r e s e c u r e di n p l a c e b y a 6 BA socket set screw. 6 R e p e a t3 a n d 4 w i t h t h e r u d d e r o n i t s c p p o s i t e p h y s i c a ls t o p . 6. M a n u a l l yo p e r a t i n gt h e s t e e r i n gg e a r ,c h e c k b y o b s e r v a t i o n t, h a t w h e n t h e r u d d e r i s a p p l i e d t h e L i m i t S w i t c h e so p e r a t e b e f o r e t h e r u d d e r s t o o s a r e r e a c h e di n e i t h e r d i r e c t i o n . 4 . 4 A D J U S T I N G T H E C O M P A S S .P r o v i d e dt h e c o m p a s sh a s b e e n i n s t a l l e di n a p o s i t i o n f r e e f r o m d i s t u r b a n c et o t h e e a r t h ' s m a g n e t i c f i e l d a n d t r i m c o r r e c t l y a d j u s t e d ,t h e c o u r s es e t a n d t h a t a c t u a l l y s t e e r e dw i l l b e i n c l o s e agreemenr. lf there are'differences of more than very few degreesit is likely that the c o m p a s su n i t i s s u b j e c tt o d e v i a t i o ne r r o r sa n d i t w i l l r e q u i r ec o r r e c t i n gb y a qualified compass adiuster. The following methods enable compass headings to be obtained so that these corrections may be effected. Both t a k e a d v a n t a g eo f t h e f a c t t h a t , w h e n t h e p i l o t D r i v e U n i t i s i n i t s " n e u t r a l " position, the course setter is effectively a compassrepeater. I I 18 METHODA usinsthe COMPASSADJUSTINGAID (CAA) R e m o v et h e t o p c o v e ro f t h e M o t o r U n i t . 1. 2. R e m o v e b o t h 2 5 a m p . ( 1 5 a m p ) f u s e s .T h i s w i l l r e n d e r D r i v e U n i t and clutch inoperative when the control unit is switched on, and t h u s p e r m i t m a n u a ls t e e r i n g . 3. Remove the Violet, green, brown, yellow, red and blue ieadscolour f o r c o l o t r r ,i n t o t h e t e r m i n a l s1 0 , 1 2 , 1 3 , 1 4 , 1 5 , a n d 1 6 o n t h e g l a n d s i d e o f t h e t e r m i n a l b l o c k ( s e eF i g . 8 ) b u t d o n o t d i s t u r b t h e g l a n d s . 4. Connect the exposed green, brown, yeilow, red and blue leads, colour for colour, into the terminal block of the CAA. The flying o r d n g el e a d o n t h e C A A s h o u l d b e c o n n e c t e di n t o t e r m i n a l 1 0 o n t h e D r i v e U n i t t e r m i n a l b l o c k . l t i s r e c o m m e n d e dt h a t t h e b a r e e n d o f the disconnected orange lead (see3 above) be covered with adhesive t a p e u n t i l t h e p i l o t w i r i n g i s r e c o n n e c t e dn o r m a l l y . t: t t t, t,I t l tf Il tI t S e t t h e S w i t c h o n C A A t o p i l o t v o l t a g e .S e t S e n s i t i v i t ya n d R u d d e r C o n t r o l f u l l y c l o c k w i s e .S e t T r i m t o " z e r o " . Bring the craft to the desired heading and adjust the Course Setter to this heading. S w i t c h o n a t t h e C o n t r o l U n i t a n d a l l o w a f e w s e c o n d sf o r t h e svstemto settle. Re-adjustthe Course Setter as indicated by the CAA lights - increase reading with the green lrght and vice versa.When both lights go out the system is balancedand the Course Setter then readswithin 't '/:o, of CompassUnit heading. 46 METHOD B. This is somewhat less accurate and calm water and steady wind conditions are necessary.Neverthelessit is adequateand useful when n o C A A i s a v a i l a b l e .N o d i s t u r b a n c et o a n y w i r i n g i s r e q u i r e d .C o m p a s s ad,lustmentis carried out underway with the pilot switched on. The craft is brought on to the required headingswith the course Setter and for each heading Trim is re-adjusted (see "Operation" section). lf this a d j u s t m e n t i s m a d e w i t h c a r e a n d c o n d i t i o n s a r e s t e a d yt h e C o u r s e S e t t e r r e a d i n gw i l l p r o v i d e a c l o s e i n d i c a t i o no f c o m p a s sh e a d i n g . Using normal compass adjustmerrt technigues compensating magnets should be placed and, if necessary,the Compass Unit slewed to minimise differences between course set and magnetic course steered. Residual differencesshould be tabulated in the form of a Deviation Table. 19 SECTION 5. 5.1 5 . 4 . R O U T I N EM A I N T E N A N C E FUSE AND RELAY REPLACEMENT. F U S E S s. i t u a t e du n d e rt h e t o p c o v e ro f t h e D r i v e U n i t a n d f r o m ( s e eF i g . 1 3 . ) the 16 way terminal block are: 1. 1 -- 5 amo BS 646 "l - 2 amp BS 646 ?- 25 amp (12 volt installation) or ? - 1 5 ; , : , , n 1p 2 4 v o l t i r . r s t a l l a t i o n ) S i t u a t e di n l s o i a t o rS w i t c h b o x 2 - lt/z amp 2 25 anrp (i2 volt installatior-r) or 2 - 15 antp(24 volt installation) B e f t . ' r er e p l a c i i ' r cf r i s e s - - S w i t c h D r i , , , eU n i t a n d C o n t r o l U n i t l s o l a t o r gy"y irchcs to O F F . 5.2 P A N E L I L L U M I N A T I O N . T h e s e m i d g e t l a r n p sp u s h f i t i n t o t h e s l o t t e d c a p s w i r i c l r s c r e w i n t o t h e C o n t r o l U n i t P a n e l .T h e y a r e : T h o r n B e n d i x 'Atlas'r.,/pr) 1 . 1 0 0 4 ( 2 8 V o l t r a t i n g f o r 2 4 v o l r i n s t a l l a t i o n s , l 4 V o lrta t i n g f o r ' 1 1 v1 c l 1 i n s i " ! l a t i o n s )W h e n r e p l a c i n g p a n e l l a m p s c a r e s h o u l r l b e t a k e n t o a v o i r : cl i s t o r t i n g o r o t h e r \ r ' i s ed a n r a g i n gt h e r u b b e r s e a l s . 5.3 R E P L A C E i v i E N TO F R E L A Y S . i P o t t e r a n d B r u m f i e l dT y p e P 8 5 l l Y ) . l t i s i m p o r t ; : i r t t h a t i l i e D r i v e U n i t a n d C o n t r o l U n i t l s o l a t o r sa r e s w i t c h e d O F F , o r a ! l e r n a t i v e i yt h e b a r t e r v c o n n e c t i o n sa r e d i s c o n n e c t e dA . c c e s st o t h e R e l a y sm a y b e g a i n e d b y r e m o v i n gt h e t o p c o v e r f r o r n t h e D r i v e U n i t . S e e F i q r i r e 1 3 . T h e r e l a y ; a r e e a c h s e c u i ' e dt o t h e b a s e p l a t e b y m e a n so f 2 - 4 B A s c r e w sa n d w a s h e r s T . h e r e l a v c o n n e c t i o n :a; r e m a d e t o a t e r m i n a l h l o c k l o c a t e d b e r r e a t ht h e f u s e a i r d s u p F r e s s i o np a n e l . T h e l a t t e r h e l t i b y ? - - 2 B A n u t s a n d r n v a s h e r s a r1r -d6 B A s c r e , , , vr . r r r ,rrl , ' a s h e ri n t h e p o s i t i o r r s s h o w r l i n F i g u r e 1 3 , a n d r e m o v a lw i l l a l l o r v t h e { l ; s eb o . r r dt o b e h i r r g e d aside cn its wirirrg in a direction towards ttr* iC way connector blocl<. N t : t e t h e p o s i t i o n o f t h e w i r i n g w h e r e i t e m e r g e sf r o r n b e n e a t h t h e r e l a y i r a s e .D i s c o n n e c tt h e r e l a r y sa n d r e m o v e ,t a k i n g c a r e n o t t o s t r a i n t h e s m a l l l e a f s p r i r i g si n t h e c o n n e c t o rb l o c k w h e n d i s c o n n e c t i n g . J ' h e n e w r e l a y s s l . r o u l db e s c r e w e d i n t o p o s i t i o n w i t h t h e w i r i n g i n t h e p o s i t i o n n o t e d f o r t h e o r i g i n a l s ,a n d c a r e s h r : u l d b e t a k e n t h a t a l i w i r e s are free to move and rrot trapped. Ensure that the loop of insulated wire connected to the armature of the relav is clear of obstruction and free to move. Connect the relaysto the terminal block as shown in Figure 13 c o i l i n g e x c e s sw i r e n e a t l y , a n d r e f i t t h e f u s e b o a r d . D u r i n g t h e l a t t e r o p e r ation it is especiallyimportant to ensurethat the wiring connections beneath the fuse board are not trapped between it and the terminal block, to avoid possiblepuncture of the insulationsby the terminal pins in the board. 20 \- 4. 6 Regularlylubricate the roiler chain drive betwecnthe Dr-iveLrnit and steeringgear. onceaseasoncheckthe oir reverin the DriveUnit gear'c,:< br, r;rar!..iirg r:acr.r on the oil levelscrewplug. situatedon the en<J of the g,.:1,1,,:.r. il;i ir,ii,;* seep from the gearbox. rf not. top up with castror 'ivlagna rirr.*gh ihe f i l l i n g p l u g , w h i c h i s a d j a c e ntto t h e e a r t hc o n n e c t i o r . r , the,,iieof the Drive Unit gearbox. The Rudder FeedbackUnit (if fitted) should be inspe.-. i+{!u i i.!j intervaisto ensurethat loosegearis not likely to foui tl_:eir,;kagi:ry,,,*,,. The ball and socket joints should be greasedoccasicnall.,. nsld lir;6,ir_,g fasteningschecked. To cleanthe contror Unit panerwashwith det€!.gent fresh and rinsev,rrtrr water. Dry off with a soft cloth. Relaycontacts.Theseshourdnot be touchedurrress svmptomsindica*ng dirty contactsoccur- A typicar symptom wourcJfre the cessar'ion oi ogr*,u" tion of the pilot, with the rudder at a fixed angle. This rnay ternL)orffriiy h€ rgmediedby switchingthe autopirotoFF and tiren oN .gri",-b"i;i"'r"rrv, shouldbe cleanedat the first subsequent opportunity. To cleanthe Relays: It is importantthat beforeany serviceoperations arecarriedout, that lhe Drive Unit be isoratedfrom the battery by opening both rsoratorswitches, or alternatelydisconnectingthe battery connections. Accessto the Reiar,is may be gainedby removingthe top coverfrom the driveunit. Thecontactsshourdbe creanedusingpreferabry a sorventcreanerfruid such asArklone,Inhibisoror spraycrene, but in the absence of any of these,-any good domesticdry cleaningfruid shourd suffice.The creanershourdbe worked betweenthe contactsusinga pieceof smooth surfacedcard suchas postcard, until alr traces of bracking are removed. The rerays may be manuallyoperatedto facilitatethis and the subsequent greasing operations. Repeatthe operationfor both pairs of contacts and allow time for the excesssolventto evaporate. on no accountshourdany abrasive or fire ever be usedon the contacts. The contactsshourd then be treated with a protective coat of Electrorube 2G grease.This may be apptiedby riqhtrycoatingthe end ot a teeteigaugu or similartool with the greaseand wiping betweeneachpair of contactsin turn, recoatingthe feelergaugeas necessary. 21 Gearbox level FUSES E a r t hs t u d nn""d,"" A I L u,.d *B' E"t n."^J """ D r F H J K FIG.13 RELAY C O N N E C T OBRL O C K 22 sEcTloN 9 9 . 1 OPERATING INSTRUCTIONS SwitchON the lsolatorSwitch (or Switches). for immediateus€. The autopilotis now available 9.2 TO STEERBY AUTOMATICPILOT Set: The CourseSetterto the Courseto be steered. Trim Control to 0. RudderControlto 5. SensitivityControl to its Mid position(12 o'clock). Ensurethat the steeringgearis free. Putthe ONiOFF switchon the ControlUnit to ON. The driveunit magnetic clutch will now engageand the craft will be steeredby the automaticpilot to the courseset. 9 . 3 A D J U S T I N GT H E C O N T R O L SF O R O P T I M U MP E R F O R M A N C E RUDDER CONTROL Adjust the Rudder Control at the lowest setting which gives,ihe most satisfactory steering. lf the control is set too high, excessive rudder is applied the craft will oversteer and weave about thtt rEi course. With too low a setting, rudder applied may be insufficii:r',itu bring the craft onto the set course. 9.4 2. TRIM CONTROL This applies rudder irrespectiveof the position of the Course Settei and RudderControl. To set the Trim Control: Checkthat the Trim Control is at 0. Set the Rudder Control to 10 or highest setting which gives a reasonably steady course. note the mean course actually steered. Then set the Rudder Control to i. lf tlre mean course steeredalters adjust Trim Control to regain course. Resetthe Rudder Control to 5. T h e a m o u n t o f T r i m s e t t i n gr e q u i r e di s l i k e l y t o v a r y w i t h a l t e r a t i o n s in speed and/or relativewind speedand direction. J. SENSITIVITY Adjust the Sensitivity Setting to reduce yawing. With a low setting the craft may yaw to some degree but battery consumption will be reduced. TO ALTER COURSE. Reset the Course Setter to new course to be steered.lt is not necess€ryto switch off the pilot when altering course. (lt should be noted that for a coursealteration of more than 180o, the autopilot will apply rudder to turn in the most direct direction towards the narv course). Reassess Trim Setting. 41 O V E R S E A SD I S T R I B U T I O N& S E R V I C E 9.5 9.6 o7 TO STEER BY REMOTE STEERING CONTROL {IF FITTED}. Depressthe switch on the Remote SteeringControl Handle and maintaining the pres$ire, turn the Control Knob for the required amount of rudder. All controls except Trim on the Control Unit are inoperative while the Remote Steering Control Switch is depressed. When the R.S.C. switch is released,the craft will regain the course set on 'Hold the control unit. lf a O n ' s r u i t c h i s f i t t e d t h e R . S . C . ,i s o p e r a t i v e whenever this switch is in the ON position. O P E R A T I N GT H E C R A S H S W I T C H ( I F F I T T E D I . Push the CrashSwitch Push Button. This will switch OFF the Autopilot and disengagethe drive unit from the steering gear. To reset and steer by autopilot,switch OFF at the Control Unit. Then switch ON at the Control U n i t a n d t h e c r a f t w i l l t h e n r e g a i nt h e c o u r s es e t . O P E R A T I N GT H E W I N D V A N E S T E E R I N GU N I T ( I F F I T T E D ) . 1. 2. S w i t c h i n g f r o m C o m p a s st o W i n d . N o t e t h e a n g l e o n t h e b o w o f R e l a t i v eW i n d t h a t t h e c r a f t i s r e q u i r e d t o s t e e r .P u t t h e T r i m C o n t r o l t o 0 . S e t t h e S w i t c h U n i t t o W i n d a n d i m m e d i a t e l y s e t t h e c o u r s es e t t e rt o t h e a n g l eo n t h e b o w o f t h e R e l a t i v eW i n d . ( S e eF i g u r e2 6 ) . The Sensitivity Setting should be left set to the setting determined f o r t h e p r e v a i l i n gc o n d i t i o n sa s i n 9 . 3 . 4 . T h e D e l a y s e t t i n g s h o u l d b e a d j u s t e d t o d a m p f l u c t u a t i o n so f t h e W i n d V a n e d u e t o s m a l l c h a n g e si n w i n d d i r e c t i o n , b e a r i n gi n m i n d t h a t t h e h i g h e r t h e d e l a y s e t t i n g ( c l o c k w i s e )t h e m o r e b a t t e r y c o n sumption is reduced. No change in Rudder setting should be necessary. S w i t c h i n gf r o m W i n d t o C o m p a s s . N o t e t h e C o m p a s sc o u r s e r e q u i r e dt o s t e e r .S e t t h e S w i t c h U n i t t o Compass and immediately set the Course Setter for the course r e o ui r e d . R e a d j u s tt h e C o n t r o l S e t t i n g sa s i n 9 . 3 . B E L G I U MH , O L L A N D , ObservatorWatersport,Paradiislaan141A, Rottordarn Hofland. Tef: O1O11 15 20 Telex:.22475. LUXEMBOURG FRANCE-ATLANTIC & CHANNEL COAST S.E.l.M.l.,32 Ouei De La Douane.Port Do Commercr, 29 20O Brest Tel: 80 08 97 Telel<:74531 FRANCE_SOUTH & MONACO S.A,R.L. MarineServicesM6diterran6ens 8 Bis Boulward D'Aguillon, 06 6fi) Antibes, France Tel: (93) 3423a7lAA felext 47729. WESTGERMANY Teilfeld1-3,2 Hamburg11. H,U. Pillekamp, Tel: Hamburgg1l-36 75 35 & 36 76 13. ,ii',,*l'il3,i1?i,"rinl.ftt"d?t6:3r11 rrALy&yucosLAvrASSiTf SPAIN,BALEARICS& CANARY ISLES 87, Madrid 16. Navymaq,Av, del Generalisimo fe/: 279 74 10, 27O29 07. Tetex: 22524 lmw MALTA Camper& Nicholson(Maltal Ltd,. 49 Royal Court. Abate RigourdSt. Ta'xbiex Yachtquay. Tel: 35€|i19.35840, 37450 NORWAY 22, Odo 1 ReidarA. Berg,Hegdetraug*eien Tel: 46 57 64 - 60 59 54 Telex: 16906 SWEDEN A.B. HermanGotthardt, Fack.$20O 40 Malrno8, Sweden Telex: 17429. DENMARK EFTF S/A, 48 Esplanaden, Blankensteiners K. Tel: 01-11 28 15. DR-1263,Copenhagen. Telex: 19038 StorosDK. FINLAND Siftafa Y&hts, Tierankatu A, 2O52O,Turku 52. Tel 921-371777 Telex: 62330 VenesSF. AUSTRALIA Electric Motors, 131 Gipp's St, Lobaschar's Collingwood,3066. Victoria Tel: 4l'7166 REPUBLICOF SOUTHAFRICA Southern Ocean Marine ServiceslPty.) Ltd., P.O. 8ox 80, MaydonWharf, Natal, and at Durban. 803 Msritime House,Esplanade, Tel:67871 CHANNEL ISLANDS (EXCEPTJERSEY} Channel lsland Boat Services,North E:planado, St. Petor Port, Guernsey. Tel: 23228' IntornationalYachting Inc', Athsns ToranrA, Athens 6tO. Telt 7i7.@,52 & 777'163. Telex: 214303Mark GR. GREECE GIBRALTAR E. K.U.R. Co. Ltd., 10 Carrera'sPassage, -Gibraltar. Tel:'7 1839 Telex: GK 259. N E C OM A R I N EL I M I T E D 42 Welton Road, Eastern Ro!d, Cqhan, Hentr' P()6^-lSiZ', Tda: 86149' England. Tct: Ccham (O7O18l 70988 (Rcgbt.r.d Offhel. Rcg. No. lffi.2141 Engfmd. 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I 382 |F , ' . j - ' t - I '--- fi.sl0;5 L_- _ __ -"1 : SYS-I.EB ML O C K D I A G R A I \F4O R N M 6 3 2 l T o r3 5 D R B ( 3 2 V o l tD C ) E c o c l t o / a aE <o 362 il;r*' ' \ i rl 'l i , PARTS LIST o @ o @ o Clutch Clutch Assy Assy Bearinl'RLS Bearing Final il -?17 _728 ! . ,, RLS 44 -229 '-2lo Shaft Oi1 Seal 080 @ Oil Seal 010 @- C i r c l i p @ GG ee aarr,, WW oo rrrmn SS tt aa rr tt Ftg I 1 0 3 3 0 8-72 2 6 12V 24V " " " -251 -232 -2s3 1 7. 5 R P l " t - 2 3 4 -255 55 RpM DRIVE SHAFT ASSEMBLY A VE g d \ ,'t'l -p Fig 2 M E C T I A N I C A LD R M UNIT' (cxplodcd view) 3B2A .--F -'l*-**