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Home >> GMC Truck >> 1992 >> Suburban 3/4 Ton 4WD V8-350 5.7L >> Repair and Diagnosis >> Heating and Air Conditioning >> Compressor HVAC >> Service and Repair >> With HR100T/HR110T Compressor >> Minor Compressor Repair Procedures >> Clutch Plate and Hub Assembly

Clutch Plate and Hub Assembly

4 POLE AND 6 POLE CLUTCH

Remove or Disconnect

1. If compressor is on the vehicle, loosen compressor mounting brackets, disconnect the compressor drive belt and reposition the compressor for access, if necessary.





If compressor has been removed from the vehicle, attach the compressor to Holding Fixture 3 25008-A and clamp the Holding Fixture in a vise (Fig. 5).

- Compressor mounting holes are metric. Use proper metric bolts with holding fixture J 25008-A.

2. Keep the clutch hub from turning with the Clutch Hub Holding Tool J 33027-A, remove the shaft nut, using Thin Wall Socket J 9399 (Fig. 5).





3. Thread the Clutch Plate and Hub Assembly Remover J 33013-B, into the hub. Hold the body of the Remover with a wrench and turn the center screw into the Remover body to remove the Clutch Plate and Hub assembly (Fig. 6).

4. Remove the shaft key.

Install or Connect





1. Install the shaft key into the hub key groove (Fig. 7). Allow the key to project approximately 4.8mm (3/16") out of the keyway.

The shaft key is curved slightly to provide an interference fit in the shaft key groove of the hub.

2. Be sure the frictional surface of the clutch plate and the clutch rotor are clean before installing the Clutch Plate and Hub assembly.

3. Align the shaft key with the shaft keyway and place the Clutch Plate and Hub assembly Onto the compressor shaft.

NOTICE: To avoid internal damage to the compressor, do not drive or pound on the clutch hub or shaft.





4. Install the Clutch Plate and Hub Installer J 9401-B as illustrated in Figure 8.

5. Hold the hex portion of the Installer Body J 9401-B with a wrench and tighten the center screw to press the hub onto the shaft until there is a 0.5-7.6mm (0.20-0.30") air gap between the frictional surfaces of the clutch plate and clutch rotor.

6. Install a new shaft nut with the small diameter boss of the nut against the crankshaft shoulder, using Thin Wall Socket J 9399-A. Hold the Clutch Plate and Hub assembly with Clutch Hub Holding Tool J 33027-A, and tighten to 14 N.m (10 lb.ft.) torque, using a 0-60 N.m (0-25 lb.ft.) torque wrench.

7. If operation is performed with compressor on vehicle, connect drive belt, tighten mounting brackets and adjust belt tension.


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