Clutch Plate and Hub Assembly

Remove or Disconnect

Tools Required:
J 9396 Compressor Holding Fixture J 9399 Compressor Shaft Nut Socket
J 9401-A Hub Drive Plate Remover
J 25030 Clutch Hub Holding Tool

^ Clamp J 9396 in a vise.

Removing The Shaft Nut:

^ Compressor to J 9396. Secure with thumb screws.

1. Shaft nut (1) with J 9399.
^ Hold the clutch plate and hub assembly (2) with J 25030.

Removing The Clutch Plate & Hub Assembly:

2. Clutch plate and hub assembly (2).
^ Thread J 9401-A into the clutch plate and hub (2).
^ Hold the body of J 9401 with a winch and tighten the center screw into the remover body.

3. Shaft key (36).
^ Retain the shaft key (36) if usable.

Inspect
^ All parts and replace as necessary.

Install or Connect

Tools Required:
J 9399 Compressor Shaft Nut Socket
J 9480-B Hub and Drive Plate Assembly Installer
J 25030 Clutch Hub Holding Tool

1. Shaft key (36).

Aligning The Drive Plate Key:

^ Allow the shaft key (36) to extend 4.5 mm (3/16-inch) out of the bottom of the hub keyway.
^ The shaft key (36) is curved to give an interference fit in the groove.

Important
^ Do not drive or pound on the clutch hub or the shaft (39). Internal damage to the compressor may result.

2. Clutch plate and hub assembly (2).
^ Install the clutch plate and hub assembly (2) over the compressor shaft lining up the key slot on the hub with the keyway slot in the shaft.

Installing The Drive Plate:

^ Install J 9480-B on the threaded end of the shaft.
^ Back off J 9480-B body to allow the center screw to be threaded against the end of the compressor shaft (39).
^ Hold the center screw with a wrench and lighten the hex portion of J 9480-B body while pressing the hub onto the shaft (39). After tightening the body several turns, remove J 9480-B and check that the shaft key (36) is properly in place in the keyway.
^ Air gap between contact surfaces of the clutch plate and hub assembly (2) and the pulley (6) should be 0.56-1.34 mm (0.022-0.057-inch).
^ Remove J 9480-B.

Inspect
^ Position of the shaft (39) (even with or slightly above the clutch hub).

3. Shaft nut (1).
^ Use J 9396 to hold the clutch plate and hub assembly (2).

Tighten
^ Shaft nut (1) to 27 N.m (20 ft. lbs.) with J 9399.
^ Hand spin the pulley (6) to check for free rotation.