Draining Procedure
Important: Drain and measure as much of the refrigerant oil as possible from the removed compressor.
- Before draining oil, position the compressor verdically (clutch facing upwards) and let it sit for 1 minute.
- Position the compressor horizontally, with the ports facing downward, rotate the clutch and shake the compressor in order to remove as much oil from the compressor as possible.
- Drain the oil from both the suction and discharge ports of the removed compressor into a clean, graduated container. Rotate the compressor shaft to assist in draining the compressor.
- Measure and record the amount of oil drained from the removed compressor. This measurement will be used during installation of the replacement compressor.
- Inspect oil drained from removed comperssor. Refer to
Air Conditioning Compressor Oil Diagnosis
- Properly discard the used refrigerant oil.
Balancing Procedure
Important: The refrigerant oil in the A/C system must be balanced during compressor replacement.
- Before installing the compressor, the refrigerant oil will have to be fully drained.
- Add back the same quantity of polyalkylene glycol (PAG) oil as drained from the removed compressor.
Refer to the amount of refrigerant oil recorded during the compressor removal.