GMC 1990 Light Truck Repair Manual page 99

Figure 10—Removing the Felt Ring Metal Retainer
J 29886 Driver Handle
J 37796 Shaft Protector
J 37791 Clutch Front Plate Spanner
1. Field coil and snap ring retainer.
• The coil flange protrusion must match the hole
in the front housing to prevent coil movement
and to correctly place the lead wire.
2. Coil wire to clip.
• Clamp the compressor in a vise by the mounting ears
or support the compressor on the four mounting ears
at the rear of the compressor.
3. Bearing to the rotor with J 37795 and J 29886 (figure
14).
4. Snap ring to the rotor.
3. Rotor pulley (5) to the front housing hub and align.
• Place J 37795 into the bearing cavity with the
outer edge on the rotor bearing outer race.
• Place J 29886 into the ring (figure 15).
• Use a hammer to tap the end of J 29886 to guide
the rotor until it bottoms out against the com­
pressor front housing hub. Listen for a distinct
change of sound during the tapping process.
4. Internal bearing snap ring.
5. Shaft key (27).
6. Front plate assembly.
• Align the front plate keyway to the compressor
shaft key.
7. J 37796 to the compressor shaft.
• Tap the front plate to the shaft until the plate
bottoms to the clutch shims.
8. Shaft hex nut.
• Hold the plate with J 37791 (figure 3).
SD-709 AIR CONDITIONING COMPRESSOR 1B5-5