Compressor Clutch Hub: Service and Repair

COMPRESSOR CLUTCH PLATE/HUB ASSEMBLY REPLACEMENT

TOOLS REQUIRED
J 37872 Universal Spanner Wrench

REMOVAL PROCEDURE
1. Remove the compressor.




2. Remove and discard the compressor clutch plate bolt. Use the J 37872 to hold the compressor clutch plate from turning.

IMPORTANT:
- Remove the three adjustable dowels from the Universal Spanner Wrench.
- Install three 5/16 x 1 inch bolts in place of the dowels.




3. Remove the compressor clutch plate.

INSTALLATION PROCEDURE
1. Carefully clean the clutch plate bolt threads with a M6x1.0 tap. Carefully blow out debris with compressed air.
2. Place a small amount of oil on the 0.4 mm (0.016 in) air gap shim and place inside the clutch drive plate.




3. Install the compressor clutch plate.




4. Measure the air gap between the pulley and the drive plate. Adjust the shims to achieve a 0.3-0.6 mm (0.012-0.024 in) air gap.

IMPORTANT: Make certain that the drive plate does not drag against the pulley when the pulley is rotated.




5. Make certain that the new drive plate bolt has colored adhesive on at least 5 threads. Install the clutch drive plate bolt. Use the J 37872 to hold the compressor clutch plate from turning.

NOTE: Refer to Fastener Notice in Service Precautions.

Tighten the compressor clutch drive plate bolt to 12 N.m (9 lb ft).

6. Install the compressor.
7. Evacuate and charge the refrigerant system. Refer to Refrigerant Recovery and Recharging.
8. Leak test the fittings using the J 39400-A.