GMC 1976 ZEO 6083 Maintenance Manual page 98

3 . Thoroughly clean inside of compressor neck
area surrounding the shaft, the exposed portion of
the seal seat and the shaft itself.
This is absolutely
necessary to prevent any dirt of foreign material from get-
ting into compressor .
4 . Place Seal Protector J-22974 over the end of
the shaft to prevent chipping the ceramic seal . Fully
engage the knurled tangs of Seal Seat Remover
Installer J-23128 into the recessed portion of the seal
seat by turning the handle
clockwise.
Lift the seat
from the compressor with a rotary motion (figure
58) .
CAUTION : DO
NOT tighten the handle
with a wrench orpliers; however, thehandle
must be hand-tightened securely to remove
the seat.
5. With Seal Protector J-22974 still over the end
of the shaft, engage the tabs on the seal assembly
with the tangs on Seal Installer J-9392 by twisting
the tool
clockwise, while pressing the tool down .
Then lift
the seal assembly out (See figure 59).
Remove the seal seat O-ring from the compressor
neck using O-Ring Remover J-9533 (See figure 58).
7. Recheck the shaft and inside of the compressor
neck for dirt or neck foreign material and be sure
these areas are perfectly clean before installing new
parts.
INSPECTION
SEALS SHOULD NOT BE REUSED . ALWAYS USE A
NEW SEAL KIT ON REBUILD . Be extremely careful that the
face of the seal to be installed is not scratched or damaged
in any way .
Make sure that the seal seat and seal are
free of lint and dirt that could damage the seal sur-
face or prevent sealing.
Figure 58-Removing Shaft Seal Seat and O-Ring
REPLACE
AIR CONDITIONING SYSTEM 1- 8 1
Figure 59-Replacing Seal and O-Ring
1. Coat new seal seat O-ring with clean 525 vis-
cosity refrigerant oil and install in compressor neck,
making certain it is installed in bottom groove
(figures 59
and 60) . Top groove is for retainer ring. Use O-Ring
Installer J-21508.
2. Coat the O-ring and seal face of the new seal
assembly with clean 525 viscosity refrigerant oil .
Carefully mount the seal assembly to Seal Installer
J-9392 by engaging the tabs of the seal with the tangs
of the tool (figure 59).
WIRE GAGE
.026 SHOULD "GO"
.075 SHOULD "NOT GO"
ABSORBENT SLEEVE
SLEEVE RETAINER
SEAL SEAT
RETAINER RING
SEAL SEAT
Figure 60-Compressor Shaft and Seal