Do not change a shaft seal because of small amounts of oil on an adjacent surface. Only replace a shaft seal after you find actual refrigerant leakage using an approved leak detector, such as J 39400 or equivalent.

Tools Required

1. Recover the refrigerant using the J 39500-B .
2. Loosen and reposition the compressor in the mounting brackets, if necessary.
3. Remove the clutch plate and hub assembly from the compressor. Refer to Compressor Clutch Plate and Hub Assembly Removal .



4. Remove the shaft seal retainer ring (1) using the J 5403 .
5. Any dirt or foreign material in the compressor may cause damage. Thoroughly clean the following components:

•	The inside of the compressor neck area surrounding the shaft

•	The exposed portion of the seal

•	The retainer ring groove

•

The shaft




6. Fully engage the knurled tangs of the J 23128-A into the recessed portion of the seal (1) by turning the handle clockwise.



7. Remove the seal (1) from the compressor using a rotary-pulling motion. Discard the seal.
8. Securely hand-tighten the handle. Do not use a wrench or pliers.



9. Remove and discard the seal seat O-ring (1) from the compressor neck using the J 9553-01 .
10. Inspect the shaft and the inside of the compressor neck for dirt or foreign material. Ensure that the shaft and the inside of the compressor neck are perfectly clean before installing the new parts.
11. Thoroughly clean the O-ring seal groove in the front head.