PURE AIR DRYER
MAJOR REPAIR KIT
RN60A
MAJOR REPAIR KIT (RN60A) CONTENTS
ITEM
QTY
DESCRIPTION
1
1
Filter
2
1
Desiccant Bag
3
2
"O"-Ring - Cover and Body (1/8 x 5 7/8 ID)
4
2
"O"-Ring - Cylinder/Body and Cylinder/Canister
(1/8 x 5 3/8 ID)
5
1
"O"-Ring - Cover/Canister (1/8 x 3 1/8 ID)
6
1
Check Valve Seal
7
1
"O"-Ring - Check Valve End Cap (1/16 x 1 5/16 ID)
8
1
"O"-Ring - Purge Piston (3/32 x 13/16 ID)
9
1
"O"-Ring - Purge Valve Body (3/32 x 1 1/8 ID)
10
1
Seal - Purge Valve
11
2
Grease, Silicone
L31048
Rev. 10/01
!
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 air pressure may
cause the vehicle to roll. Keep hands away from brake chamber push rods
and slack 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.
SERVICING THE PURE AIR DRYER FROM THE
INLET/OUTPUT END
The Pure Air Dryer can be completely overhauled while installed on the vehicle, if
there is adequate clearance from either end:
14" Clearance Required For Top End Servicing
12" Clearance Required For Bottom End Servicing
LUBRICATE ALL "O"-RINGS AND SEALS PRIOR TO SERVICING
1. Drain all air from the vehicle reservoirs. Loosen the line on the
dryer marked "inlet" to ensure no pressure remains in the unit.
Completely disconnect the inlet and outlet lines and move them
to one side.
2. Using a 1.5" wrench, remove the check valve end cap. Remove
the spring and valve disc. Discard disc. Remove the "O"-Ring from the cap.
Discard the "O"-Ring.
PURE AIR DRYER REPAIR KIT
INSTRUCTIONS