Pontiac FIREBIRD 1972 Service Manual page 128

CUSTOM AIR CONDITIONING 1A-69
3. Remove cover plate from compressor openings very
slowly to bleed off pressure.
WARNING: New compressors are charged with
a mixture of nitrogen, refrigerant and 11 fluid
02s. of 525 viscosity refrigeration oil. If thecover
is removed too rapidly, the oil may be blown out
violently due to the sudden release of pressure.
- - - -
4. Install coil and clutch parts if not already installed.
5. Evacuate, charge and leak test the system. Discon-
nect jumper wire from limiter connector and connect
thermal limiter.
COMPRESSOR H U B A N D DRIVE PLATE
ASSEMBLY
-
REMOVE A N D REPLACE
REMOVE:
1. Hold the clutch hub with J 9403 wrench and, using
J 9399 (special thin wall 9/16" socket), remove hub
and drive plate assembly lock nut from shaft (Figs.
1A-60 and 1A-61).
2. Remove hub and drive plate assembly retainer ring,
using J 5403 (No. 21 pliers). Remove spacer (Fig.
1A-62).
3. Screw threaded hub puller J 9401 into the hub. Hold-
ing body (J 9401-2) of tool with a wrench, tighten the
center screw (J 9401-1) to remove hub and drive plate
assembly (Fig. 1A-63). Remove J 9401 puller.
Fig. 1A-61 Removing Hub a.nd Drive Plate Lock Nut
Fig. 1A-63 Removing Hub and Drive Plate Assembly