Chrysler DODGE D150 1993 Service Manual page 1459

24 - 22 HEATING AND AIR CONDITIONING
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(4) Remove the tape or plastic plugs from all the
suction and discharge openings and install the ser­
vice valves on the compressor.
(5) Connect the clutch lead wire.
(6) Connect the negative cable to the battery.
(7) Evacuate, charge and test the system for leaks.
MAGNETIC CLUTCH
The magnetic clutch consists of a stationary electro­
magnetic coil and a rotating pulley and plate assembly.
The electromagnetic coil is retained on the com­
pressor with a snap ring and is dimpled to maintain
its position.
The pulley and plate assembly are mounted on the
compressor shaft.
When the compressor is not in operation, the pul­
ley free wheels on the clutch hub bearing. When the
coil is energized the plate is magnetically engaged
with the pulley and turns the compressor shaft.
J8924-18
Fig. 3 Clutch Front Plate
REMOVAL
(1) Insert the 2 pins of the front plate spanner into
any 2 threaded holes of the clutch front plate (Fig.
2). Hold clutch plate stationary. Remove hex nut.
(2) Remove clutch front plate using puller. Align
puller center bolt to compressor shaft (Fig. 3). Thumb
tighten the puller bolts into the threaded holes.
(3) Turn center bolt clockwise until front plate is
loosened.
(4) Remove shaft key by lightly tapping it loose
with a slot screw driver and hammer (Fig. 4).
(5) Remove the external front housing snap ring
(Fig.
5).
J8924-19
Fig. 4 Shaft Key
J8924-20
Fig. 5 External Snap Ring