Major Repair To The Compressor; Shaft Seal Replacement - Chevrolet 1988 Light Duty Truck Repair Manual

1B5-8 HR-6 AIR CONDITIONING COMPRESSOR
Figure 19— Staking the Clutch Coil Assembly
to the Coil Head
— Stake size should be one half the area of
th e p u n c h
(0.010-0.015-inch) deep (figure 20).
Pulley (5).
Clutch plate and hub assembly (2).

MAJOR REPAIR TO THE COMPRESSOR

A. Steel Shell
B. Lip Seal
2 1
Figure — Com pressor Shaft Seal
Replacem ent of the shaft seal assem bly or the pressure
relief valve will require the discharge of the vehicle's refri­
gerating system (figure 21). O ther than clutch repair pro­
cedures, the same holds true for any disassem bly of the
compressor. To discharge the refrigerant, refer to the vehi­
cle service manual.
After servicing or repairing the compressor, always add
the proper amount of new 525 viscosity refrigerant oil.
Refer to " S pecifications."
Keep the w orkbench and work area clean when servic­
ing the compressor, and use proper, clean service tools.
tip a nd 0 .2 8 -0 .3 5 mm
B-06551
NOTICE: A n y a tte m p t to use m a k e s h ift o r in a d e ­
qu ate se rvice to o ls o r e q u ip m e n t m ay re s u lt in
dam age a n d /o r im p ro p e r c o m p re s s o r o p e ra tio n .
All parts used for servicing the com pressor internally
are protected by a preservative and packaged in a m an­
ner w hich does not require cleaning, washing or flushing.
The parts can be used in the internal assembly just as
they are removed from the service package.

SHAFT SEAL REPLACEMENT

+-► R em o ve or D isco nn ect (F ig u re s 4, 22, 23 and
----- 24)
Tools Required:
J 5403 Snap Ring Pliers
J 34614 Shaft Seal Protector
J 23128-A Seal Remover and Installer
J 9553-01 O-Ring Seal Remover.
1. Clutch plate and hub assem bly (2).
• Install J 34614 over the threaded end of the
shaft (20).
2. Shaft seal retainer ring using J 5403 (figure 22).
• Clean the com pressor neck area around the
shaft (20), the exposed part of the shaft seal
(8) and the O-ring seal groove.
3. Shaft lip seal using J 23128-A (figure 23).