Air Conditioning and Heating R-12 All Caterpillar Machines Caterpillar


Identifying the Air Conditioning System

Usage:

769C 01X
The type of air conditioning system must be identified before the system is serviced. The refrigerant must be identified so that the correct service manual can be selected.


Illustration 1g00649373

(1) Compressor block fittings

(2) Charging Ports

By examining charging ports (2), you can determine if the air conditioning system contains R-12 refrigerant.

If the machine has R-12 charging ports, a tag should identify the amount of refrigerant that is needed in the air conditioning system. The tag will be located inside the cab or near the compressor.

R-12 air conditioning systems should contain Air Conditioning Mineral Oil.

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