SURE-CHANGE

SURE-CHANGE
Air Dryer Monitor Kit #314A
The only sure way to save money on air dryer rebuilds and down time
Desiccant type air dryers are the most
efficient way to remove moisture from an
air system – Until the Desiccant Becomes
Saturated. When oil and moisture saturate
the desiccant beads, the efficiency goes
downhill quick.
SURE-CHANGE pin points the exact time
the desiccant needs to be changed, saving
down time and money. Changing the
desiccant to often is costly, changing it to
late could be deadly to the system!
•
Oil resistant material to keep oil
off the sight glass
•
Burst Pressure 900 psi
•
No electrical or moving parts
•
Mounts in minutes on your air
system.
SURE-CHANGE mounts after the air
dryer. When the desiccant is good and the
air is dry the sight glass is blue. When the
desiccant becomes saturated and moisture
gets through the dryer, the sight glass turns
pink.
Mounting Instructions
1. Remove air line from the outlet side of the air dryer.
2. Install ½ inch Street Tee in the outlet side of dryer.
3. Install air line in opposite end of the Tee
4. Install SURE-CHANGE in the side port of the tee.
One time purchase. No need to replace.
After desiccant is changed, SURE-CHANGE turns back to blue
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TABLE OF CONTENTS
AIR SYSTEMS GENERAL DESCRIPTION
3
Compressor Designs
3
SAFETY PRECAUTIONS
4
DESICCANT AIR DRYERS
5
Desiccant Air Dryer General Descriptions
Theory of Desiccant Operation
Mounting Recommendations
Turbo 2000 & HD-2000 Removal
Turbo 2000 & HD-2000 Installation
AIR SYSTEM and AIR DRYER TROUBLESHOOTING
5
5
6
7
7
8
Turbo 2000 & HD-2000
Problem: Air continually leaks from the exhaust port during compressor standby mode
Problem: System air pressure drops rapidly
Problem: Air compressor moves into the standby mode but cycles rapidly
Problem: Air leaks from the purge port during air compressor charge cycle
Problem: Air compressor runs continuously (system pressure will not build)
Problem: Air dryer does not purge
Problem: Safety valve opens
Problem: Water accumulation in the air system (tanks)
8
8
8
8
9
9
9
10
11
SERVICE PROCEDURES
Turbo 2000 & HD-2000
Purge Valve Service Kit #235
Regeneration Valve Service Kit #223
Check Valve Service Kit #238
Desiccant Cartridge Service Kit #T224
Heater Assemblies Service Kits #248, #249, #619110, #619111
TURBO 2000’ONLY SERVICE PROCEDURE
11
13
14
15
16
18
18
Turbo Valve Service Kit #228
SPECIFICATIONS & PARTS LIST
19
Component Identification and Description
20
Turbo-2000 & HD-2000 Parts Schematic
21
Turbo-2000 & HD-2000 Charge Cycle Schematic
22
Turbo-2000 & HD-2000 Regeneration Cycle Schematic
23
Turbo-2000.doc
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AIR SYSTEMS GENERAL DESCRIPTION
Compressed air is used in a variety of vehicle vocations (both traditional and nontraditional) primarily for brake application. Compressed air also operates for air seats, air
ride suspensions, air shift, horns, etc. Mounted directly to the engine, the compressor is
controlled through a pneumatic device known as a D2 governor. The governor controls
the compressor’s pumping and non-pumping cycles.
Diesel engine designs, in order to achieve optimum horsepower and fuel efficiency,
incorporate the use of turbo chargers. A turbo charger forces greater amounts of air into
an engine’s combustion chamber for a cleaner burn. On vocations where an air
compressor’s intake is connected to the pressure side of the turbo-charger, the
compressor produces a greater CFM (cubic feet per minute) flow rate.
Compressor Designs
Flow rate, compressor duty cycle, and vehicle vocation are three variables that affect an
air compressor, air dryer, and the entire air system. Size of the compressor (cfm) is
predicated by the air requirements of the vehicle vocation. Compressor CFM and duty
cycle determines the air dryer model type required. Some vocations may require the
installation of dual air dryers to meet the demands of high air flow (CFM) and duty
cycles.
During the non-pumping cycle, turbo boost pressure is lost through the air compressor’s
exhaust valve(s) and exits through the air dryer’s open purge port. To prevent this,
Chicago Rawhide’s turbo series air dryers incorporate a turbo boost protection valve.
Discharge Line Unload (DLU) air systems do not require turbo boost protection as the
compressors are naturally aspirated and designed to pump continuously. The Chicago
Rawhide HD air dryer is controlled by a traditional D2 governor that allows the
compressor to pump continuously through the purge port of the air dryer. This allows the
air compressor to run cooler.
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SAFETY PRECAUTIONS
1. Before performing any test and/or isolating the air dryer, the vehicle’s wheels must be
chocked making sure the vehicle will not roll before releasing the brakes.
2. Never work under a unit supported only by a jack. Always support the vehicle with
stands.
3. Stop engine when working under a vehicle.
4. Never remove a component or a pipe plug unless you are certain all system air
pressure has been exhausted.
5. Never connect or disconnect a hose or line containing air pressure.
6. Never exceed recommended working air pressure.
7. Never attempt to disassemble an air dryer until you have read and understood all
recommended procedures.
8. Use only proper tools and observe all precautions pertaining to the use of those tools.
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DESICCANT AIR DRYERS
Desiccant Air Dryer General Description
Chicago Rawhide’s desiccant series of air dryers, Turbo 2000 and HD2000, are models
designed to mount vertically between the air compressor and the air system’s supply
reservoirs. The desiccant air dryer receives hot compressed air that it cools, dries, and
filters before delivery to the supply reservoirs.
The TURBO-2000 and HD-2000 incorporate four pounds of desiccant and a separate
purge tank (460 cubic inches) that is isolated from the vehicle air system. The purge tank
stores clean, dry air for regeneration of the desiccant bed. The design of these air dryers
serves vehicle vocations with compressor duty cycles of up to 40%.
Air dryers are constructed of a light weight aluminum and steel housing with a unique
spin-off cartridge. Below the cartridge are five (5) ports: 1) inlet, 2) outlet, 3)
regeneration, 4) control and 5) purge port. Each port has a specific function. The inlet
port receives contaminated air from the air compressors. Outlet port directs clean dry air
to the air system. Connected to the isolated purge tank is the regeneration port. The
control port receives an air signal from a governor device and the purge port expels water
and contaminates from the air dryer.
Theory of Desiccant Operation
Hot, compressed air enters the air dryer through the inlet port. As the air enters the dryer,
the air expands; oil and water vapor condense, and accumulate in the sump. The air
passes through a series of filters and a cloth bag removing carbon and other
contaminants. Removal of the remaining water vapor occurs as air passes through the
desiccant bed within the cartridge. The clean dry air is then directed to the vehicle air
system through the outlet port. The 2000 series of air dryers simultaneously refills a
regeneration tank through the regeneration port.
When the air system reaches the governor-regulated cutout pressure (typically 120psi, the
air dryer purge valve opens via an air signal received from the air system governor. The
governor will simultaneously signal the compressor to stop compressing air in vehicle
applications not utilizing a DLU (Discharge Line Unloaded). In vehicles utilizing a
DLU, a naturally aspirated air compressor or non-computerized engines, the HD2000 air
dryer is required, as the compressors will continue to pump air through the air dryers
purge port.
The air dryer’s check valve closes during the non-pumping cycle of the compressor. With
the check valve closed, air system reservoirs maintain air pressure. The filtered, dried
purge air, which has accumulated in the external isolated purge tank, begins a controlled
regeneration cycle flowing clean dry air through the air dryer desiccant bed. This
regeneration cycle, removes accumulated moisture from the desiccant bed; back flushes
and cleans the filters expelling contaminants out the dryer’s purge port. This completes
the purge cycle.
Turbo-2000.doc
5
When the air system pressure drops to the governor regulated cut-in pressure (typically
95psi), the air dryer’s purge valve closes as the valve reacts to the evacuating of air
pressure through the exhaust (EXH) port of the governor. The compressor then begins the
pumping cycle.
Additionally, the TURBO-2000 design includes an additional valve within the dryer:
(Turbo cut off valve). This valve ensures engine boost pressure will not escape out the
dryer’s purge port during the non-pumping cycles.
Chicago Rawhide offers additional air dryers too meet the unique requirements for the
Holset SS or QE designed compressors. These air compressors require a differential
check valve, which maintains the system air pressure within the air compressor’s
discharge line.
Mounting Recommendations
Air dryers are mounted between the air
compressor and the first reservoir tank. The
air compressor discharge line should be either
copper or steel braided Teflon®. When using
copper, it is recommended that a small amount
of flexible Teflon® steel braided hose be used
to absorb vibration.
The compressor discharge line size, length and
material must be such that the dryer inlet air
temperature is typically no more than 160° F
or no less the 45° F above low ambient
temperature (reference SAE J2383). (For
example: if ambient temperature is -45° F, the
dryer inlet temperature must be above +5° F.)
Lower dryer inlet air temperature should be avoided to minimize the risk of freeze up in
the discharge line or dryer inlet fitting. Higher dryer inlet air temperatures should be
avoided to minimize the risk of heat damage to the dryer’s seals and/or to avoid a loss of
drying performance. It is recognized that both limits may not be achievable at all
extremes of ambient temperature and compressor duty cycle. Therefore, to protect from
discharge line freeze up, it is recommended that a pressure relief valve be installed near
the compressor outlet, particularly on those vehicles which will not meet low temperature
limit at the dryer inlet.
The air dryer mounting location must be away from a heat source and downhill from the
air compressor. It is required that ambient air circulation occurs around the air dryer.
Detailed installation instructions come with each air dryer from the factory.
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WARNING: Read and follow safety precautions found on page 3 before
proceeding.
TURBO-2000 AND HD-2000 AIR DRYERS
Turbo-2000 and HD-2000 Removal
1. Drain the air system
2. Disconnect heater wiring
3. Mark the air lines for later reference and disconnect from the air dryer.
4. Remove the lock-nuts, washers and cap screws that attach the air dryer to the vehicle.
Turbo-2000 and HD-2000 Installation
1. Position air dryer. Install the cap screws, washers and lock-nuts. Torque to 37 ft.lbs.
2. Inspect lines and fittings. Replace any damaged components.
3. Connect all air lines and fittings. Take care to match marked lines with appropriate
ports.
4. Connect the heater wiring.
TYPICAL CONNECTION SCHEMATIC
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AIR SYSTEM AND AIR DRYER TROUBLESHOOTING
TURBO-2000 & HD-2000 AIR SYSTEM
Problem: Air continually leaks from the exhaust port during compressor standby
mode.
Possible Cause
Remedy
Worn check valve
Clean cavity, replace check valve assembly #238
Worn turbo valve
Clean cavity & replace turbo valve assembly #228
Worn purge valve seat
Clean cavity & replace purge valve assembly #235
Problem: System air pressure drops rapidly.
Possible Cause
Remedy
Fittings are loose or damaged
Tighten and/or replace as necessary
Air, reservoir, tubing, or hoses damaged
Repair or replace as necessary
Worn check valve
Clean cavity & replace check valve assembly #238
Worn turbo valve (Turbo-2000 only)
Clean cavity & replace turbo valve assembly #228
Worn purge valve seal
Clean cavity & replace purge valve assembly #235
Problem: Air compressor moves into standby mode but cycles rapidly
Possible Cause
Remedy
Fittings are loose or damaged
Tighten and/or replace as necessary
Air reservoir, tubing or hoses damaged
Repair or replace as necessary
Worn check valve
Clean cavity & replace check valve assembly #238
Worn turbo valve (Turbo-2000 only)
Clean cavity & replace turbo valve assembly #228
D2 Governor malfunctioning
Replace governor
Worn purge valve seal
Clean cavity & replace purge valve assembly #235
Problem: Air leaks from purge port during air compressor charge cycle.
Possible Cause
Remedy
Worn purge valve
Clean cavity & replace purge valve assembly #235
Dirt/foreign material is stuck in the purge valve
Clean cavity & replace purge valve assembly #235
D2 Governor malfunctioning
Heater assembly malfunctioning (>32 Degrees)
Replace governor
Replace heater assembly: #619111
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Problem: Air compressor runs continuously (system pressure will not build)
Possible Causes
Remedy
Fittings are loose or damaged
Tighten or replace loose or damaged fittings
Air reservoir, tubing or hoses damaged
Repair or replace as necessary
The air compressor needs to serviced or replaced
Rebuild or replace the air compressor
Worn purge valve
Clean cavity & replace purge valve assembly #235
The air compressor capacity is to low for vehicle
Install larger compressor
Line between governor and air compressor is
blocked
Replace line or remove block
The safety valve is malfunctioning
Replace the safety valve #610024
Ice has formed in the purge valve
Replace the heater assembly
D2 governor malfunctioning
Replace governor
Problem: Air dryer does not purge.
Possible Causes
Remedy
The line between the air governor and the air dryer
purge port is missing, leaking or damaged.
Install or replace the air line or tighten the fittings
Worn purge valve
Clean cavity, replace the purge valve assembly #235
Ice has formed in the purge valve
Replace heater assembly
Heater is malfunctioning
Replace heater assembly
Misalignment of purge valve sleeve
Align purge valve sleeve
Problem: Safety Valve Opens
Possible Causes
Remedy
Air dryer check valve is blocked
Clean cavity and replace check valve assembly
#238
Air brake system is blocked down stream of the air
dryer
Remove blockage or replace failed components in
air system
Air compressor governor malfunctioning
Replace compressor D2 governor
Plugged desiccant cartridge
Replace Cartridge T224
The safety Valve is malfunctioning
Replace the safety valve #610024
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Problem: Water accumulation in air system (tanks)
Possible Causes
Remedy
Desiccant is contaminated
The air compressor capacity is to low for the vehicle
Malfunctioning regeneration valve
The line between the purge tank and the air dryer
purge port is missing, leaking or damaged
Line between the compressor and the air dryer is too
short (insufficient pre-cooling)
Replace desiccant cartridge #T224
Install large air compressor and replace desiccant
cartridge #T224
Clean cavity and replace regeneration valve
assembly #223
Install or replace the air line or tighten the fittings.
Fit new line with a minimum length of 6 feet copper
line or 12 feet of steel braided Teflon®
REFER TO VEHICLE MANUFACTURER FOR SPECIFIC TEST
PROCEDURES
FOR NON RELATED AIR DRYER COMPONENTS
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Service Procedures
Turbo-2000 & HD-2000
Purge Valve Service Kit #235
WARNING: READ AND FOLLOW SAFETY PRECAUTIONS FOUND
ON PAGE 3 BEFORE PROCEEDING.
Symptom
1) Dryer won’t exhaust
2) Air leak at exhaust port during the:
a. Charge mode
b. Standby mode
3) Pressure slow or no build
4) Compressor cycles rapidly
Operational Check
Start engine and build to cutout pressure.
Cycle several times. If dryer does not
exhaust, replace purge valve #235.
Symptom #2A &3
Start engine and build pressure to just
before cutout (approx. 100psi). Stop
engine. Apply soap solution at exhaust port
or listen for air leak at exhaust port. If leak
is present, replace purge valve #235.
Symptom #2B & 4
Remove governor line from UNL port on the dryer. Start engine and build to cutout
pressure. Stop engine. If no air leaks are present, replace purge valve #235.
Purge Valve Replacement
1. Disconnect the purge air line.
2. Remove the two fasteners that attach the purge valve retainer. Remove the retainer.
3. Remove the purge valve assembly from the purge port and discard.
NOTE: If there is excessive oil in the purge port, the compressor may require
servicing.
4. Clean the purge port thoroughly
5. Remove the three (3) o-rings from the retainer and discard.
6. Using the lubricant supplied, lightly grease the new o-rings.
Turbo-2000.doc
11
7. Install on the retainer the two (2) thickest o-rings then install the third (thinner) oring.
8. Install the new filter screen in the purge cavity open end out.
9. Apply a light coating of grease around the o-ring seat on the valve assembly. Install
the thin o-ring on the purge valve seat.
10. Aligning the purge valve exhaust port with the air dryer exhaust port, install the purge
valve assembly. Use care not to dislodge the o-ring from its seat.
WARNING: If the air dryer purge valve port does not align, the air dryer will not
exhaust.
11. Install the retainer.
12. Apply a light coating of grease on the threads of the two retainer bolts.
13. Install the two retainer bolts. Tighten to 10 15 ft.lb.
14. Reconnect the purge air line to the air dryer purge port.
Turbo-2000.doc
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Turbo-2000 & HD2000 Service Procedures
Regeneration Valve Service Kit #223
WARNING: READ AND FOLLOW THE SAFETY PRECAUTIONS
FOUND ON PAGE 4 BEFORE PROCEEDING.
Symptom
1. Water in tanks
2. Slow or no purge
Operational Check
Symptom 1 & 2
Start engine. Build air pressure allowing
dryer to exhaust. Stop engine. After
initial exhaust, air should bleed with
decreasing intensity out the exhaust port
for approximately 45 seconds. If air fails
to bleed as described above, replace
bleed valve kit #223.
BLEED VALVE REPLACEMENT
1. Drain the air from the system
2. Disconnect the air line at the air
dryer purge port.
3. Remove bleed valve nut.
4. Remove and discard the o-ring, spring and spindle.
5. Clean bleed valve nut and cavity area.
6. Position new spindle in the cavity with spring pocket side out, and Install the spring.
7. Using the grease supplied, apply a light coating on the o-ring. Install the o-ring on the
nut.
8. Apply a light coating of grease on nut threads. Install the nut and tighten to 30 ft.lb.
9. Re-connect the air line to the dryer purge port.
Turbo-2000.doc
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Check Valve Service Kit #238
WARNING: READ AND FOLLOW THE SAFETY PRECAUTIONS
FOUND ON PAGE 4 BEFORE PROCEEDING.
Symptom
1. Dryer exhausts frequently.
2. Air continually flows from the exhaust
port when the compressor in the
standby mode.
3. Wet tank pressure drops rapidly.
NOTE: The above symptoms could also
lead to turbo valve replacement. A
malfunctioning Turbo valve will tend to
allow pressure to drop to cut-in pressure
with-in seconds.
Operational Checks
Symptom #1, 2, &3:
Disconnect the air line at the purge port and
plug. Start the engine and build pressure to
cutout pressure. Stop the engine. Apply
soapy solution around exhaust port. If soap
bubbles exist, replace check valve #238.
Check Valve Replacement
1. Drain the air system.
2. Disconnect the air line from the outlet port.
3. Remove check valve nut.
4. Remove and discard the o-ring, spring, spindle and ball.
NOTE: If there is excessive oil in the check valve port, the compressor may require
servicing.
5. Clean nut and cavity area.
6. Install new ball in cavity. Next, position the spindle with the spring pocket facing up.
Install the spring.
7. Using the grease supplied, apply a light coating on the o-ring. Install the o-ring on the
nut.
8. Apply a light coating of grease to the threads of the nut. Install the nut and tighten to
60 ft.lb.
9. Re-connect the air line to the air dryer outlet port.
Turbo-2000.doc
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Desiccant Cartridge Service Kit #T224
WARNING: READ AND FOLLOW THE SAFETY PRECAUTIONS
FOUND ON PAGE 4 BEFORE PROCEEDING.
Symptom
1. Regular Service Interval
2. Water in Tanks
Operational Checks
Symptom 1 & 2
Desiccant cartridge requires servicing at intervals determined by the compressor duty
cycle or application conditions. Typical service intervals for Maintenance of Way
environments are:
Tie cranes / Spikers
1-2 years
Cranes
1 year
Regulators & Tampers
1 year
The above is a guide line only. Check
tanks on a regular basis, opening the
drain valves. If moisture exists, replace
cartridge #T224.
Desiccant Cartridge Replacement
1. Drain the air system
2. Using a strap wrench, turn the
desiccant cartridge
counterclockwise and remove it.
Discard it.
3. Remove and discard the o-ring
from adapter stud.
NOTE: If there is excessive oil
present the compressor may require
servicing
4. Clean top surface of adapter plate
and threaded stud.
5. Using grease supplied, apply a
light coating on the o-ring. Install
o-ring on the adapter stud.
6. Apply a generous coat of grease on
the new desiccant cartridge gasket
surface.
7. Thread new cartridge onto the stud turning clockwise. When gasket contacts the
adapter plate, tighten cartridge ½ turn.
Turbo-2000.doc
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Heater Assemblies Service Kits
@248, #249, #619110, #619111
Warning: READ AND FOLLOW THE SAFETY PRECAUTIONS
FOUND ON PAGE 4 BEFORE PROCEEDING.
Symptom
1. Dryer won’t exhaust.
2. Exhaust port leak.
3. Cannot build pressure.
Operational Check
NOTE: Thermostat must be cooled to at least 35° F to check.
1. Closed ohmmeter circuit indicates heater is functioning.
2. Open ohmmeter circuit indicates faulty heater assembly.
Heater Assembly Replacement
1. Disconnect heater leads.
2. Remove the two screws from the
heater cover.
3. Remove the attaching hardware.
4. Remove heater/thermostat
assembly and discard.
5. Thoroughly clean entire area.
6. Apply a light coating of anti-seize
to the heater element thermostat
cavity only. Do Not apply this
compound to the screws.
7. Install new heater.
7.1. Early Models
7.1.1. Install new set screw
until snug Screw will
protrude from bottom cap about ⅛ inch.
7.1.2. Fill heater cover with non-corrosive RTV.
7.1.3. Place two (2) 6-32 x 1-⅛ screws in heater cover and attach the thermostat.
DO NOT OVER TIGHTEN
7.1.4. Coil wires around heater cover posts allowing wires to protrude through
the slots.
7.1.5. Connect Blue heater wire to a good chassis ground.
7.1.6. Connect the orange wire to the ignition switch.
7.1.7. Seal and route heater wires carefully
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16
Heater Assemblies Service Kits Continued
7.2. Late Models
7.2.1. Slide “O” ring over heater
and thermostat into position
around the connector flange.
7.2.2. Slide heater and thermostat
into position in the casting.
7.2.3. Ensure the thermostat sits
flat on the casting.
7.2.4. Place foam cube on top of
the thermostat and bring
heater connector into position
over heater.
7.2.5. Secure heater assembly
using two (2) 8-32 x ½”
screws.
7.2.6. Reconnect Metri-Pak
connector to male plug.
Turbo-2000.doc
17
Turbo-2000 Only Service Procedure
Turbo Valve Service Kit #228
WARNING: READ AND FOLLOW THE SAFETY PRECAUTIONS
FOUND ON PAGE 4 BEFORE PROCEEDING.
Symptom
1. Dryer frequently exhausts.
2. Air continually flows from the exhaust port when the compressor is in the stand by
mode.
3. System pressure drops rapidly.
NOTE: The above symptoms could also
lead to check valve replacement. A
malfunctioning Turbo valve will tend to
allow the pressure to drop to cut-in
pressure within seconds.
Operational Check
Symptom #1, 2 & 3
Disconnect line at the purge port and plug.
Start engine and build pressure to cutout
pressure. Stop engine. Apply a soapy
solution around the exhaust port. If soap
bubbles exist, replace Turbo valve #228.
Turbo Valve Replacement
1. Drain the air system
2. Disconnect the heater wiring.
Disconnect the inlet and purge air lines
from their respective ports. Mark the
lines for later assembly.
3. Remove 8 bolts from the bottom cap
and set aside. Discard the gasket.
4. Remove the turbo nut, valve stop and valve. Discard them.
5. Clean cavity area thoroughly.
6. Lightly coat the 2 small o-ring surfaces and install on the piston. Carefully install the
valve in the cavity with the tapered side up.
7. Place valve stop on top of valve concave side down.
8. Lightly lube the large o-ring and place on nut. Install flat seal into nut.
9. Install nut and tighten to 50 ft.lb.
10. Place gasket on bottom cap aligning the small hole with the small check valve. Locate
bottom cap so that the inlet port is directly below the outlet port. Install 8 bolts, set
aside during disassembly. Tighten bolts to 15 – 20 ft.lb.
11. Re-connect inlet and purge lines as previously marked to air dryer.
12. Re-connect heater wiring.
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AIR DRYER UNITS
Length
16 ¼ inches
Width
8 ½ inches
Weight
16.5 pounds
Capacity
30 Cfm*
Heater
75 watt sealed
Drying Bed
4 lbs. Desiccant
Mounting
Vertical
Inlet/Outlet
½” NPT
Bleed Valve
⅜” NPT
Governor
¼” NPT
Turbo Valve Kit Internal (Turbo 2000 only)
* Actual Output. Boosted compressor intake increases output.
Length
Diameter
Weight
PURGE TANK
12 inches
7 ¼”
14 pounds
Turbo-2000 – Part Number Description
STD
E-Type*
Description
620604
620504
Dryer with Tank Kit 24v
620606
620506
Air Dryer Only – 24v
221
221
Purge Tank
* (E-Type) = Holset SS or QE Compressor Compatible
620554
620556
221
Turbo-2000.doc
HD-2000 – Part Number Description
Air Dryer With Tank Kit – 24v
Air Dryer Only – 24v
Purge Tank
19
A
B
C
D
E
F
G
H
I
J
K
L
*
COMPONENT IDENTIFICATION AND DESCRIPTION
610237
Bleed Valve Nut
223
Bleed Valve Kit
610077
Body Gasket
610069
Seal Retainer
T224
Desiccant Cartridge
610236
Check Valve Nut
238
Check Valve Kit
619087
Bottom Cap Assembly 24v – STD
619090
Bottom Cap Assembly 24v – HD
619113
Bottom Cap Assembly 24v – Holset – E type
235
Purge Valve Kit
249 (24v)
Heater Kit (Early Model – Plastic Cover)
619111 (24v)
Heater Kit (Late Model – Metri-Pak)
610024
Safety Valve – 175 psi.
228
Turbo Valve Kit
619340
Complete Service Kit (T224, 228, 235, 238)
Bold Part Numbers Represent Suggested Stocked Service Components
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Turbo-2000.doc
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CR TURBO-2000/HD-2000 CHARGE SCHEMATIC
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CR TURBO-2000/HD-2000 REGENERATION
SCHEMATIC
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