GMC 1990 Light Truck Repair Manual page 80

1B4-4 HR-6 AIR CONDITIONING COMPRESSOR
Figure 5 — Removing the Shaft Nut
Figure 6 — Removing the Clutch Plate and
Hub Assembly
2. C lutch Plate and Hub Assem bly
5. Pulley (Rotor)
21. Key
35. Keyway (Shaft)
Figure 7 — Positioning the Shaft Key,
2. C lutch Plate and Hub Assem bly
A. A ir Gap 0.38-0.64 mm
(.015-.025 inch)
B-06574
Figure 8 — Installing the Clutch Plate and
Clutch Plate, and Hub Assembly
Hub Assembly
F-04459
F-04460