Compressor Clutch: Service and Repair

Air Conditioning Clutch Assembly Replacement (LNF)

Special Tools
* J 6083 External Snap Ring Pliers
* J 37872 Universal Spanner Wrench

Removal Procedure

1. Remove the compressor. Refer to Air Conditioning Compressor Replacement (Removal and Replacement).

2. Remove the three adjustable dowels from the J 37872 .
3. Install three 5/16 x 1 inch bolts in place of the dowels.
4. Remove and discard the compressor clutch plate bolt.
Use the J 37872 .

5. Remove the compressor clutch plate from the compressor.

6. Remove the compressor pulley snap ring using the J 6083 .

7. Remove the compressor pulley from the compressor.

8. Remove the compressor clutch coil snap ring using the J 6083 .

9. Remove the compressor clutch coil from the compressor.

Installation Procedure

1. Carefully clean the clutch plate bolt threads with a M6x1.0 tap. Carefully blow out debris with compressed air.

2. Install the compressor clutch coil to the compressor.

3. Install the compressor clutch coil snap ring using the J 6083 .

4. Install the compressor pulley to the compressor.

5. Install the compressor pulley snap ring using the J 6083 .
6. Place a small amount of oil on the 0.4 mm (0.016 in) air gap shim and place inside the clutch drive plate.

7. Install the compressor clutch plate to the compressor.

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

8. 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.

Note: Make certain that the new drive plate bolt has colored adhesive on at least 5 threads.

9. Install the clutch drive plate bolt.

Caution: Refer to Fastener Caution (Fastener Caution).

10. Tighten the compressor clutch drive plate bolt.
Use the J 37872 .

Tighten the bolt to 12 Nm (9 lb ft).

11. Install the compressor. Refer to Air Conditioning Compressor Replacement (Removal and Replacement).
12. Leak test the fittings using the J 39400-A .