Compressor Disassembly- Internal Cylinder And S H A Ft - GMC 1989 Light Duty Truck Repair Manual

Figure 26 — HR -6 Compressor Rear Head Detail
COMPRESSOR D IS A S S E M B LY -
INTERNAL CYLINDER AND
SHAFT
Remove or Disconnect (Figures 4, 27, 28, 29 and
30)
Mark the front head (11) alignm ent with cylinders (16)
(23) and rear head (28) alignment.
Clutch plate and hub assem bly (2).
Pulley (5).
Clutch coil assembly (6).
Shaft seal parts (8 ,9 ,1 0 )
• Note the com pressor alignm ent marks and use
them as a reference for compressor assembly
(figure 27).
5. Through bolts (7) and gaskets (figure 28).
• Throw away the gaskets.
• Hand-support the com pressor from below.
• Remove com pressor assembly from J 33026.
6. Rear head (28) (figure 29).
• Using a wood block, tap around the edge of the
rear head (28) to ease removal.
• Mount the com pressor on J 33026 front head
(11) down (figure 30).
7. Head gasket (27).
.
8 Valve plate (26).
Suction reed plate (25).
9.
10 Cylinder seal (24).
.
Cylinder (23).
11.
Important
• Shaded parts shown in figure 3 are not service­
able. A replacement kit (gut pack) is available.
• Cylinders (23) (16), cylinder seal (22), discharge
crossover seal (17), piston group, axial plate
shaft assemlby (20) and bearings; replace as a
kit.
12. Cylinder seal (22).
13. Cylinder (16).
HR-6 AIR CONDITIONING COMPRESSOR 1B 4 -1 1
7. T h ro u g h B o lt and G a ske t (6 R equired)
Figure 28 — Removing and Installing the Through
Bolts in the Front Head
A. P la s tic H eaded H a m m e r
B. W ood B lo c k
11. F ro n t Head
28. R ear H ead
Figure 29 — Tapping the Rear Head or Front Head
Free of the Cylinder
B-06627
B-06177