L31270 US REV. 8/13 xxMEX ALP
Innovative Vehicle Solutions
OPERATIONAL CHECKS
After repairs are completed and air lines are re con nect ed,
start the engine, build-up pressure to 100 psi, and shut off
the engine. Check for air leaks at the inlet and outlet of the
dryer. Correct any leakage problem. Restar t the engine and
build-up pressure to cut-out pressure. At cut-out pressure
the dryer purge valve opens and im me di ate ly expels a large
volume of air, followed by a slow flow of air lasting
approximately thirty seconds. Check for leakage to assure
that the
PUR
est
Air Dryer will operate properly.
A. Compressor Unloader Mechanism.
B. Governor.
C. Drain Cock and Safety Valve in first (supply) reservoir.
D. All air connections leading to and from the first (supply)
reservoir.
PURGE VALVE INSTALL INSTRUCTIONS
DRAIN ALL AIR FROM THE VEHICLE RES ER VOIRS BEFORE
YOU BEGIN THIS PROCEDURE.
1. Remove the three hex head screws and purge valve cover .
2. Remove large snap ring.
3. With pliers pull out purge valve assembly and discard.
4. Install large and small o-rings on the purge valve assembly .
5. Lubricate the purge piston bore.
6. Insert new purge valve assembly in dryer housing.
7. Install new snap ring.
Service Instructions
PUR
est
®
Air Dryer
Major Repair Kit (RN60AB/RN60AN)
www.haldex.com
Haldex Limited
500 Pinebush Road, Unit #1
Cambridge, ON Canada N1T 0A5
519-621-6722
519-621-3924
Installation
Guide
L31270
Rev. 8/13
When working on air system com po nents the following
pre cau tions should be ob served.
1. Stop engine when working under a vehicle. Always block
the ve hi cle wheels to prevent a fore or aft roll. Bleeding off
system pres sure may cause the vehicle to roll. K eep hands
away from brake chamber push rods and brake adjusters;
they may apply as system pressure drops.
2. Never connect or disconnect a hose or line containing air
pres sure. It may whip as air escapes. Nev er remove a
component or a pipe plug unless you are cer tain all sys tem
air pressure has been exhausted.
3. Never exceed recommended working air pressure and
al ways wear safety glasses when working with air pressure.
Nev er look directly into component por ts or direct a
pressurized air flow at any one.
4. Never attempt to disassemble a component until you have
read and understood all rec om mend ed procedures. Some
components con tain powerful springs and injury can result if
not prop er ly disassembled. Use only proper tools and observe
all precautions per tain ing to the use of those tools.
!
WARNING
PUR
est
®
MAJOR REPAIR KIT CONTENTS
(RN60AB/RN60AN)
TURBO-SAVER™ VALVE INSTALL INSTRUCTIONS
DRAIN ALL AIR FROM THE VEHICLE RES ER VOIRS BEFORE
YOU BEGIN THIS PROCEDURE.
1. Remove control port end cap and discard.
2. Disconnect the inlet air line from the dryer .
3. Insert a long shank screwdriver into the inlet por t and press
the Turbo-Saver™ piston out through the control por t and
discard.
4. Install small o-ring on the Turbo-Saver™ piston body.
5. Lubricate the control port bore.
6. Through the control port opening, insert the new
Turbo-Saver™ piston body.
7. Install the o-ring on the new control por t end cap
and thread into dryer. Torque to 35-50 ft. lbs.
8. Reconnect inlet and control air line.
Haldex Brake Products Corporation
10930 N. Pomona Ave.
Kansas City, MO 64153
816-891-2470
FAX: 816-891-9447
OUTLET CHECK VALVE INSTALL INSTRUCTIONS
DRAIN ALL AIR FROM THE VEHICLE RES ER VOIRS BEFORE
YOU BEGIN THIS PROCEDURE.
1. Disconnect the dryer outlet line.
2. Remove outlet end cap.
3. Remove o-ring from end cap. Discard the seal assembly , spring
and o-ring.
4. Install new o-ring on outlet end cap.
5. Install new seal assembly and spring. Seal assembly must be
centered.
6. Thread outlet end cap into dryer body and torque to 3 5-50 ft. lbs.
7. Reconnect outlet air line.
HEATER INSTALL INSTRUCTIONS
1. Disconnect leads of the heater assembly being replaced. If
ambient temperature is <45 ± 8°F, disconnect the battery or
make sure the ignition switch is in OF F position.
2. Remove old heater assembly and discard.
3. Apply the heat conductive g rease in the cavity recess in which
the heater assembly is inserted.
4. Install new heater assembly in the cavity . (The raised thermostat
on the heater body must be placed in the depressed bore in the
dryer body.)
5. Install new gasket, purge valve shield and shield retainer . Install
the three hex head screws. Torque to 30-50 in. lbs.
6. Connect heater wires/connector to vehicle heater
wires/connector.
HEATER OPERATIONAL CHECKS
At temperatures above freezing, the heater circuit will be open. If an
operational check is required, a means must be available to reduce
the temperature of the heater thermostat to below 45 ± 8°F .
1. After installation of the heater is completed, apply ice or other
cold source to the heater plastic body area to lower the
temperature of the thermostat.
2. Connect a continuity meter or a similar device to the heater leads.
3. When the heater thermostat drops to about freezing, the
continuity meter should indicate a closed circuit.
4. Remove the cold source from the heater plastic body area.
5. When the heater thermostat reaches about 65 ± 1 0°F, the
continuity meter should indicate an open circuit
PRESSURE RELIEF VALVE INSTALL INSTRUCTIONS
DRAIN ALL AIR FROM THE VEHICLE RES ER VOIRS BEFORE
YOU BEGIN THIS PROCEDURE.
1. Remove Pressure Relief Valve and discard.
2. Install new Pressure Relief V alve. Torque to 20-35 ft. lbs.
TURBO-SAVER™ VALVE
QTY.
DESCRIPTION
1
Piston
1
Piston O-Ring (1/2 ID)
1
End Cap O-Ring (3/4 ID)
1
Cap Nut
PURGE VALVE
QTY.
DESCRIPTION
1
Drain Valve Assembly
1
Body O-Ring (1 15/16 ID)
1
Piston O-Ring (13/16 ID)
1
Retaining Ring
1
Lubricant (1/4 oz)
OUTLET CHECK VALVE
QTY.
DESCRIPTION
1
Seal Assembly
1
O-Ring (1 5/16 ID)
1
Conical Spring
1
Pressure Relief Valve
HEATER
QTY.
DESCRIPTION
1
Heater Assembly, 28 VDC
1
Gasket
1
Retainer
1
Shield, Purge Valve
3
Hex Head Screw, 10-24 x 5/8” Long
1
Grease, Heat Conductive
Servicing of these assemblies can be ac com plished while the
unit is installed on the ve hi cle.
NOTE "A"
: It is recommended that the desiccant car tridge be
replaced if water/oil is present in the reservoirs. If the dryer has
been in operation for more then three years, it is recommended
that the desiccant cartridge be replaced. Lubricate all o-rings
and seals prior to assembly.
