Balancing Procedure with Service Compressor Replacement (Flushing Not Required)

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NOTE:

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

The replacement compressor is shipped with 74 ml (2.5 oz) of refrigerant oil.

Fig 1: View Of Refrigeration Oil Replenishing

Courtesy of GENERAL MOTORS COMPANY

Before installing the compressor, calculate the total amount of oil drained from the compressor and collected by the recovery equipment.
If the amount drained and recorded is:
- LESS THAN 74 ml (2.5 ounces), leave 74 ml (2.5 ounces) in the replacement compressor. Do not drain the oil from the replacement compressor.
- MORE THAN 74 ml (2.5 ounces), calculate the difference between the amount that was drained and recorded. ADD the calculated difference to the A/C system by filling the A/C compressor or using J 45037 injector along with GE 48997 adapter.