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WARNING
When working on air system
components the following precautions
should be observed.
1. Stop engine when working under a
vehicle. Always block the vehicle
wheels to prevent a fore or aft roll.
Bleeding off system pressure may
cause the vehicle to roll. Keep
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 pressure. It
may whip as air escapes. Never
remove a component or a pipe plug
unless you are certain all system air
pressure has been exhausted.
3. Never exceed recommended
working air pressure and always
wear safety glasses when working
with air pressure. Never look
directly into component ports or
direct a pressurized air flow
at anyone.
4. Never attempt to disassemble a
component until you have read and
understood all recommended
procedures. Some components
contain powerful springs and injury
can result if not properly
disassembled. Use only proper tools
and observe all precautions
pertaining to the use of those tools.
PURE AIR PLUS
MAJOR REPAIR KIT CONTENTS
(DQ6020)
TURBO-SAVER VALVE
TM
QTY.
DESCRIPTION
1
Piston
1
Piston O-ring (1/2 ID)
1
End Cap O-ring (3/4 ID)
1
Valve Disc
1
Screw, Thread Form
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
OUTLET CHECK VALVE
QTY.
DESCRIPTION
1
Seal Assembly
1
O-ring (1 5/16 ID)
1
Conical Spring
Servicing of these assemblies can be accomplished
while the unit is installed on the vehicle.
NOTE "A": When servicing a Pure Air Plus Air
Dryer that has been in operation for more than one
year, it is recommended that the coalescing filter be
replaced. If the dryer has been in operation for
more than three years, it is recommended that both
the coalescing filter and the desiccant cartridge be
replaced. Lubricate all o-rings and seals prior to
assembly.
TURBO-SAVER
INSTALLATION INSTRUCTIONS
DRAIN ALL AIR FROM THE VEHICLE RESERVOIRS
BEFORE YOU BEGIN THIS PROCEDURE.
1. Loosen desiccant cartridge with a strap wrench
(OTC#7206, Snap-On #A91C, or equivalent) at
the base of the cartridge and spin off by hand.
Set the cartridge aside or discard (See NOTE
"A").
2. Remove the coalescing filter and either set aside
or discard (See NOTE "A").
3. Remove control port end cap and discard the o-ring.
4. Disconnect the inlet air line from the dryer.
5. Using a large flat blade screwdriver in the control
port side and a 1/4" hex head or flat blade screwdriver
in the inlet side, loosen and remove the screw. Remove
the Turbo-Saver piston and discard. Using long
TM
needle nose pliers, remove the valve disc through
the coalescing filter housing.
6. Install small o-ring on the Turbo-Saver piston body.
7. Using long needle nose pliers hold the valve disc
in position through coalescing filter housing.
8. Insert thread forming screw through the dryer inlet and
through the valve disc. Lubricate the control port bore.
9. Through the control port opening, insert the new
Turbo-Saver piston body and screw together.
TM
Torque to 20-28 in. lbs.
10. Install a new o-ring on control port end cap and
thread into dryer. Torque to 35-50 ft. lbs.
11. Install coalescing filter.
12. Thread desiccant cartridge onto dryer and hand tighten.
13. Reconnect inlet and control air line.
VALVE
TM
TM
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