Compressor Clutch - Jeep cherokee 2000 Service Manual

XJ
REMOVAL AND INSTALLATION (Continued)

COMPRESSOR CLUTCH

The refrigerant system can remain fully-charged
during compressor clutch, pulley, or coil replacement.
The compressor clutch can be serviced in the vehicle.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the serpentine drive belt. Refer to
Group 7 - Cooling System for the procedures.
(3) Unplug the compressor clutch coil wire harness
connector.
(4) Remove the four bolts that secure the compres-
sor to the mounting bracket.
(5) Remove the compressor from the mounting
bracket. Support the compressor in the engine com-
partment while servicing the clutch.
(6) Insert the two pins of the spanner wrench
(Special Tool C-4489) into the holes of the clutch
plate. Hold the clutch plate stationary and remove
the hex nut (Fig. 20).
Fig. 20 Clutch Nut Remove
1 – CLUTCH PLATE
2 – SPANNER
(7) Remove the clutch plate with a puller (Special
Tool C-6461) (Fig. 21).
(8) Remove the compressor shaft key and the
clutch shims.
(9) Remove the external front housing snap ring
with snap ring pliers (Fig. 22).
(10) Install the lip of the rotor puller (Special Tool
C-6141-1) into the snap ring groove exposed in the
previous step, and install the shaft protector (Special
Tool C-6141-2) (Fig. 23).
(11) Install the puller through-bolts (Special Tool
C-6461) through the puller flange and into the jaws
of the rotor puller and tighten (Fig. 24). Turn the
HEATING AND AIR CONDITIONING
Fig. 21 Clutch Plate Remove
1 – CLUTCH PLATE PULLER
2 – CLUTCH PLATE
Fig. 22 External Snap Ring Remove
1 – PULLEY
2 – SNAP RING PLIERS
puller center bolt clockwise until the rotor pulley is
free.
(12) Remove the screw and retainer from the
clutch coil lead wire harness on the compressor front
housing (Fig. 25).
(13) Remove the snap ring from the compressor
hub and remove the clutch field coil (Fig. 26). Slide
the clutch field coil off of the compressor hub.
INSPECTION
Examine the friction surfaces of the clutch pulley
and the front plate for wear. The pulley and front
plate should be replaced if there is excessive wear or
scoring.
If the friction surfaces are oily, inspect the shaft
and nose area of the compressor for oil. Remove the
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