14-24. AIR-CONDITIONING COMPRESSOR REPLACEMENT (R-12)
This task covers:
Air-conditioning system discharged
(compressor replacement only).
General mechanic's tool kit:
Right splash shield removed
Air filter to air horn hose removed
Disconnect battery ground cable
General Safety Instructions
Air-conditioning system must be discharged,
prior to replacing components.
The following procedure applies to vehicles with R-12 refrigerant only.
Air conditioning system must be discharged, prior to replacing
components in vapor system. Failure to do this may result in
injury to personnel or damage to equipment.
Ensure valve holes in compressor and service valves are
immediately capped after service valve removal. Failure to do so
may cause damage to compressor.
Perform steps 1 and 2 if compressor is being removed to service
other than the A/C system components.
Tag service valves "front-seated" for installation.
Turn both service valves (3) fully clockwise until front-seated.
Loosen two nuts (2) on service valves (3) slowly to allow refrigerant to escape from compressor (20).
Remove two service valves (3) and O-rings (1) from compressor (20) slowly. Discard O-rings (1).
Remove screw (10) and clamp (11) from adjusting bracket (6).
Prior to removal, tag leads for installation.
Disconnect two compressor leads (23) from two harness leads (24).
Remove nut (9), lockwasher (8), and washer (7) from adjusting bracket (6) and timing chain cover
bolt. Discard lockwasher (8).
Remove two nuts (14), lockwashers (13), washers (12), capscrews (4), washers (5), adjusting
bracket (6), and clamp (21) and washers (7), from compressor (20). Discard lockwashers (13).
Remove drive belt (16) from pulley (15).
Remove adjusting bracket (6) and washer (7) from compressor (20) and timing chain cover bolt.