GMC T Series 1994 Repair Manual page 59

1 - J 8433-3 SCREW
2 - J 8433 PULLER CROSS BAR
3 - J 33024 CLUTCH COIL INSTALLER
4 - CLUTCH COIL ASSEMBLY
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Fig. 17 Installing Clutch Coil Assembly
Install or Connect
1. Place the clutch coil assem bly on the front head with the
term inals positioned at the "m arked" location.
2. Place the J 33024 clutch coil installer over the internal
opening o f the clutch coil housing and align installer
w ith the com pressor front head.
3. C enter the J 8433-1 puller crossbar in the countersunk
center hole o f the J 33024 clutch coil installer. Install the
J 3499 2 -2 through bolts and w ashers through the
crossbar slots and thread them , into the holding fixture
J 34992 to full fixture thickness (Fig. 17).
4. Turn the center forcing screw o f the J 8433-1 puller
crossbar to force the clutch coil onto the front head. Be
sure clutch coil and J 33024 installer stay "in-line"
during installation.
5. W hen coil is fully seated on the front head, use a 1/8"
diam eter drift punch and stake the front head at three (3)
places 120° apart (Fig. 18), to ensure clutch coil
rem aining in position.
• Stake size should be only one h alf the area o f the
punch tip and only approxim ately 0 .2 8 -0 .35mm
(.0 1 0 -.0 1 5 ") deep (Fig. 19).
6. Install rotor and bearing assem bly and the clutch plate
and hub assem bly according as described previously.
MAJOR V5 COMPRESSOR REPAIR
PROCEDURES
W hen replacing the shaft seal assem bly (Fig. 20),
pressure relief valve or rear head m ounted pressure sw itches
(Fig. 21), even if the com pressor rem ains on the vehicle during
the operation, it will be necessary to discharge the system of
refrigerant.
O ther than clutch repair procedures, the sam e holds true
for any disassem bly o f the com pressor.
A clean w orkbench covered w ith a sheet o f clean paper,
and a place (clean trays, etc.) for all parts being rem oved and
replaced is im portant, as is the use o f the proper, clean service
tools.
NOTICE:
A ny attem pt
inadequate service tools or equipm ent m ay result in
dam age and/or im proper com pressor operation.
1-C L U T C H C O IL
2 - D R I F T PUNCH
3 -S T A K E IN F R O N T
H E A D (3 PLACES)
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Fig. 18 Staking Clutch Coil To Front Head
COMPRESSOR SHAFT SEAL
REPLACEMENT
Seal Leak Detection
A shaft seal should not be changed because o f small
amounts o f oil found on an adjacent surface. The seal is
designed to leak som e oil for lubrication purposes. A shaft seal
should be changed only when a large am ount o f sprayed oil is
found, and only after actual refrigerant leakage is found by
using an approved leak detection procedure.
to use m akeshift or