Draining Procedure
Important: Drain and measure as much of the refrigerant
oil as possible from the removed compressor.
- Remove the compressor crankcase oil drain plug and drain the crankcase into
a clean, graduated container.
- Drain the oil from both the suction and discharge ports of the removed compressor
into the same 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 compressor. 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.
- The replacement compressor is shipped with 74 ml (2.5 oz) of refrigerant
oil.
- Compare
the amount of refrigerant oil recorded during compressor removal to the amount of
refrigerant oil shipped in the replacement compressor.
If the amount of
refrigerant oil drained and recorded from the removed compressor is:
• | Less than 74 ml (2.5 oz) |
• | Leave the 74 ml (2.5
oz) in the replacement compressor. |
• | More than 74 ml (2.5 oz) |
• | Add to the compressor the
difference between the 74 ml (2.5 oz) and the amount drained. |