Compressor Replacement

Air Conditioning Compressor Replacement (LL8)

Tools Required

- J 39400-A Halogen Leak Detector

Removal Procedure

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging Service and Repair.
2. Remove the generator. Refer to Generator Replacement Service and Repair.
3. Remove the idler pulley. Refer to Drive Belt Idler Pulley Replacement Service and Repair.
4. Disconnect the compressor electrical connectors.

Important: Some system pressure may still exist in the A/C compressor crankcase after you evacuate the system.

5. Remove the compressor hose assembly bolt from the compressor.
6. Remove the compressor hose assembly block from the compressor.






7. Remove the compressor mounting bolts from the compressor (1).
8. Remove the compressor.
9. Drain and measure the compressor oil. Refer to Air Conditioning Compressor Oil Balancing.

Installation Procedure

1. Add the proper amount of oil to the replacement compressor. Refer to Air Conditioning Compressor Oil Balancing.
2. Install the compressor.






Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

3. Install the compressor mounting bolts to the compressor (1).

Tighten
Tighten the bolts to 50 Nm (37 lb ft).

4. Install the compressor hose assembly block to the compressor.






5. Install the compressor hose assembly bolt to the compressor (1).

Tighten
Tighten the bolt to 33 Nm (24 lb ft).

6. Connect the compressor electrical connectors.
7. Install the idler pulley. Refer to Drive Belt Idler Pulley Replacement Service and Repair.
8. Install the generator. Refer to Generator Replacement Service and Repair.
9. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging Service and Repair.
10. Leak test the fittings of the components using the J 39400-A.