14-27.8. AIR-CONDITIONING COMPRESSOR REPLACEMENT (R-134a)
This task covers:
Air-conditioning system discharged
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.
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.
The following procedure applies to vehicles with R-134a
Remove two caps (15) from service valves (2) and turn service valve shafts (3) clockwise to
Disconnect two A/C clutch leads (1) from harness leads (16).
Cover or plug all open lines and connections immediately after
Remove service valves (2) and O-rings (4) from compressor manifold (7). Discard O-rings (4).
Remove serpentine belt (TM 9-2320-280-20).
Remove screw (13), lockwasher (9), washer (14), and spacer (5) from A/C compressor (10) and rear
mounting bracket (6). Discard lockwasher (9).
Perform step 7 to remove idler pulley bracket.
Remove remaining three screws (12), two lockwashers (9), and idler pulley bracket (11).