Clutch Plate and Hub Assembly

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.

Installing Shaft Key:

If compressor has been removed from the vehicle, attach the compressor to Holding Fixture J 25008-A and clamp the Holding Fixture in a vise.

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

Clutch Plate & Hub Assembly Removal:

2. Thread the Clutch Plate and Hub Assembly Remover J33013-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.

3. Remove the shaft key.

Install or Connect

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

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.

Installing Clutch Plate & Hub Assembly:

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

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 0.4-0.5mm (0.015-0.020") air gap between the frictional surfaces of the Clutch Plate and clutch rotor. Check for proper positioning of the shaft key (even or slightly above the clutch hub).

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

On-Vehicle

A. Position the Rotor and Bearing assembly on the front head.

Installing Rotor And Bearing Assembly (On-Vehicle):

B. With Rotor & Bearing Installer J 26271-A (without driver handle) in position and Rotor and Bearing assembly aligned with the Front Head as shown in the illustration, drive the assembly part way onto the head.

C. Plug clutch coil connector onto Clutch Coil.

D. Position the Clutch Coil so the three (3) locating tabs will align with the holes in the head and continue to drive the Rotor and Bearing assembly onto the front head.

Removing Rotor & Bearing Assembly Retainer Ring:

E. Install the retainer ring.

F. Reassemble the Clutch Plate and Hub with the shaft key onto the shaft with Installer J 9401-B until 0.5-7.6mm (0.20-0.030") air gap is obtained.

G. Install shaft lock nut. Torque to 14 N.m (10 lb.ft.).