Chrysler DODGE D150 1993 Service Manual page 1461

24 - 24 HEATING AND AIR CONDITIONING
(3) Support the compressor on the 4 mounting ears
at the compressor rear. If a vise is being used, clamp
only on the mounting ears. Never clamp on the com­
pressor body.
(4) Align rotor assembly squarely on the front
housing hub.
(5) Using Rotor Installer Set, place the ring part of
the set into the bearing cavity (Fig. 10). Make cer­
tain the outer edge rests firmly on the rotor bearing
inner race.
(6) Place the tool set driver into the ring as shown
(Fig. 11).
J 8 9 2 4 - 2 5
Fig. 10 Rotor installer Set
J 8 9 2 4 - 2 6
Fig. 11 Rotor Installation
(7) With a plastic hammer, gently tap the end of
the driver while guiding the rotor to prevent binding.
Tap until the rotor bottoms against the compressor
front housing hub. Listen for a distinct change of
sound during the tapping process.
(8) Install external front housing snap ring with
spread type snap ring pliers.
(a) Check t h a t original clutch shims are in place
on compressor shaft.
(b) Replace compressor shaft key.
(c) Align front plate keyway to compressor shaft
key.
(9) Install front plate assembly.
(10) Using shaft protector, gently tap front plate to
shaft until it has bottomed to the clutch shims (Fig.
12). Listen for a distinct change of sound during the
tapping process.
J8924-27
Fig. 12 Front Plate to Shaft Installation
(11) Replace shaft hex nut. Tighten the hex n u t to
37 N*m (27 ft, lbs.) torque.
(12) Check air gap with feeler gauge. The specifi­
cation is 0.406-0.787 mm (0.016-0.031 inch). If air
gap is not consistent around the circumference,
lightly pry up at the minimum variations (Fig. 13).
Lightly tap down at points of maximum variation.
The air gap is determined by the spacer shims.
When installing the original or a new clutch assem­
bly, try the original shims first. When installing a
new clutch onto a compressor t h a t previously did not
have a clutch, use 0.040, 0.020, and 0.005 shims from
the clutch accessory sack.
(13) If the air gap does not meet the specification
given, add or subtract shims as required.