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CUSTOM AIR CONDITIONING
18-53
FRONT
HEAD
O-RING
SUPPORT
BLOCK
J-21351
4950
Fig.
18-89 1977 A-6
Front Head 0-Ring Installed
COMPRESSOR
SHELL
SUPPORT
BLOCK
J-21352
TUBE HOLE
4957
1
OIL PICK;UP TUB
Fig.
18-9 1
Installing
1977 A-6
Oil Pick-up Tube
CAVITY BETWEEN
GEAR TEETH
Fig.
18-92
Positioning
1977 A-6
Oil Pump Gears
Fig.
1 8-90
Installing
l 9 $ 7 ~ - 6
Compressor Shell
discharge valve plate.
2 1. Using the 525 oil, lubricate new heaa to-shell O-ring
and install on rear discharge valve plate, in contact with shell
(Fig. 1B-93).
22. Install suction screen in rear head casting, using care
not to damage screen.
23. Coat sealing surface on webs of compressor rear head
casting with 525 viscosity refrigerant oil.
24. Install rear head assembly over studs on c o m p r e o r
shell.
The two lower threaded compressor mounting
holes should be in alignment with the compressor
sump.
Make certain that suction screen does not drop out of
place when lowering rear head into position (Fig. 1B-94).
If rear head assembly will not slide down over dowels
in intemal mechanism, twist front head assembly back-and-
forth very slightly by-hand until rear head drops over dowel
pins.
25. Install nuts on threaded shell studs and tighten
evenly to 25 lb. ft. torque using a 0-50 lb. ft. torque wrench.
26. Invert compressor in Holding Fixture and install
compressor shaft seal as described in "Compressor Shaft
Seal" Replacement procedure.
27. Install compressor clutch coil and housing assembly
as described in "Compressor Clutch Coil and Housing Asm."
Replacement procedure.
28. Install compressor pulley and bearing assembly as
described in "Compressor Pulley and Bearing" Replacement
procedure.
29. Install compressor clutch plate and hub assembly as
described in "Compressor Clutch Plate and Hub Asm.'
Replacement procedure.
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