GMC C Series 1993, Repair Manual

Page: 30 / 264

1D2-10 HR6-HE AIR CONDITIONING COMPRESSOR
[T|
J 5403
SNAP RING
PLIERS
[ T ] SEAL SEAT
RETAINER ,
RING
• G60060-1D2-C-R1
Fig. 21 Removing or Installing Shaft Seal
! Retaining Ring
4. Install the, new seal retainer ring with its flat side against
the Seal, using Snap-Ring Pliers J 5403. See Figure 21.
Use'the sleeve from O-ring installer J 33011 to press in on
the seal retainer ring so that it snaps into its groove.
5. To leak test, install compressor leak test fixture
J 9625-A on rear head of compressor and connect gage
charging'lines and J 38100-C Refrigerant Recovery
System.;Pressurize suction and high-side of compressor
with Refrigerant 12 vapor to drum pressure. Temporarily
install (M9 x 1.25 thread on shaft) nut and, with the
compressor in horizontal position, rotate the compressor
, shafts, in, normal direction of rotation several turns by
hand.; Leak test the seal area and correct and leak found.
Reb|6yei; the refrigerant. Remove shaft nut.
6. Remove any excess oil resulting from installing the new
seal parts from the shaft and inside the compressor neck.
7. Install'the clutch plate and hub assembly as described in
minor repair procedures.
.
8. Reinstall compressor belt and tighten'bracket.
9. Evacuate and charge the refrigerant system.
COMPRESSOR PRESSURE RELIEF VALVE
1++1 Remove or Disconnect
1. Recover the refrigerant.
Remove old pressure relief valve (Fig. 19).
’sTi; '
Install or Connect
,2.
seal onto the ,shaft with a rotary motion until it stops.
Take care not to dislodge the O-ring. Be sure the seal
makes good contact with the O-ring. Disengage the
installer from the seal and remove the installer
J 2 3 128-A and the seal protector J 34614.
NOTICE:
Handling and .care of seal protector is
important. If seal protector is nicked or the bottom
flared, the new seal may be damaged during installation. ;
1. Clean valve seat area on rear head.
2. Lubricate O-ring of new pressure relief valve and O-ring
assembly with new 525 viscosity refrigerant oil. Install
newj j ; 1 valve
and torque in place, 9.0 N*m
(6.1 lbs-ft.)
3. Evajcuate,and recharge the system. •
4 ., Leakitest system.
; i ' ' 1 l ■ ■ :
Fig. 22 Removing or Installing Shaft Seal