Air Conditioning C O M P Re S S O R; Identification; Disassembly Of The Drive Components; Clutch Drive Hub - GMC 1989 Light Duty Truck Repair Manual

1B3-2 R-4 AIR CONDITIONING COMPRESSOR
Figure 1— R-4 Compressor, V-Groove Pulley Type
with 4 Pole Clutch and Driver Shown
30 ml (1 oz.) is drained from the compressor, add the same
amount of new 525 viscosity oil to the overhauled assem­
bly.

IDENTIFICATION

An identification label attached to the compressor pro­
vides the name of the m anufacturer and model number
(figure 3).

DISASSEMBLY OF THE DRIVE COMPONENTS

CLUTCH DRIVE HUB

Remove or Disconnect (Figures 4, 5,
Tools Required:
J 9399 Thin Wall Socket
J 25008-A Holding Fixture
J 33027 Clutch Hub Holding Tool
J 37707 Clutch Plate and Hub Assembly
Remover
• Attach J 25008-A to the com pressor (figure 5).
• Mount J 25008-A in a vise (figure 6).
1. Shaft nut with J 9399 (figure 6).
• Hold the clutch plate with J 37707.
Figure 2— R-4 Compressor, Poly-Groove Pulley
Type with
2. Clutch drive hub (figure 7).
6
and 7)
3. Shaft key.
4 POLE CLUTCH ROTOR AND/OR
4 -+
Remove or Disconnect (Figures 4 , 8 , 9 , 1 0 and 11)
Tools required:
6
Pole Clutch and Driver Shown
Figure 3— Identification Label
• Thread J 37707 into the clutch plate and hub
assembly.
BEARING-V-GROOVE
J 6083 Snap Ring Pliers
J 9398 Rotor Bearing Remover