990K Wheel Loader Machine Systems Caterpillar


Hydraulic Oil Cooler

Usage:

990K A9P


Illustration 1g03656029
(1) Oil cooler
(2) Oil cooler bypass valve

The hydraulic oil cooler is part of the cooler group located on the rear of the machine. Air flow through the cooler group cools the oil in the hydraulic oil cooler.

Oil is supplied by the fan pump and then to the fan motor. The oil returning to the hydraulic tank from the fan motor first flows through the hydraulic oil cooler. The oil cooler bypass valve allows excess oil flow to return to the tank protecting the oil cooler.

Caterpillar Information System:

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