Procedures

Air Conditioning Compressor Oil Balancing

Draining Procedure

Note: Drain and measure as much of the refrigerant oil as possible from the rear head ports of the REMOVED compressor.

1. Drain the refrigerant oil from the crankcase and rear head ports into a clean, graduated container.




2. Rotate the compressor shaft to assist in draining the compressor.

3. Measure and record the amount of oil drained from the removed compressor.
This measurement will be used during installation of the replacement compressor.

4. Inspect oil drained from removed compressor. Refer to Air Conditioning Compressor Oil Diagnosis Air Conditioning Compressor Oil Diagnosis.

5. Properly discard the used refrigerant oil.

6. Clean the graduated cylinder.

Note: Drain and measure as much of the refrigerant oil as possible from the rear head ports of the NEW compressor.

7. Remove the drain bolt and drain the refrigerant oil from the crankcase and rear head ports into a clean, graduated container.

8. Rotate the compressor shaft to assist in draining the compressor.

Balancing Procedure





Note: The refrigerant oil in the A/C system must be balanced during compressor replacement.

The replacement compressor is shipped with a service charge of 74 ml (2.5 fl. oz) or 40 ml (1.4 fl. oz) of refrigerant oil.

1. Refer to the amount of refrigerant oil recorded during the compressor removal.

2. If the amount of oil recorded from the removed compressor is less than or equal to the service charge of oil in the new compressor, add back the full amount of the new PAG oil back into the new compressor through the compressor suction port.

3. If the amount of oil recorded from the removed compressor is greater than the service charge of oil in the new compressor, add back the full new PAG oil back into the new compressor and supplement with new PAG to the new compressor through the compressor suction port.

4. Rotate the clutch driver three times to lubricate the internal compressor components.

Note: If additional A/C components are replaced during compressor replacement, add the PAG oil directly to the A/C compressor to compensate the A/C system.

5. If necessary, refer to Refrigerant System Specifications Refrigerant System Specifications.