isuzu Workshop Repair Guides

Isuzu Workshop Service and Repair Manuals

Refrigerant Oil|Service and Repair > < Oil Return Operation
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Refrigerant Oil: Testing and Inspection
Contamination of Compressor Oil

Unlike engine oil, no cleaning agent is added to the compressor oil. Even if the compressor runs for a long period of time (approximately 1 season), the
oil never becomes contaminated as long as there is nothing wrong with the compressor or its method of use.

Inspect the extracted oil for any of the following conditions:

-

The capacity of the oil has increased.

-

The oil has changed color to red.

-

Foreign substances, metal powder, etc., are present in the oil.

If any of these conditions exists, compressor oil is contaminated. Whenever contaminated compressor oil is discovered, the receiver/drier must be
replaced.

Refrigerant Oil|Service and Repair > < Oil Return Operation