Challenger 35, Challenger 45 and Challenger 55 Agricultural Tractors Caterpillar


Heating and Air Conditioning Controls

Usage:

45 1DR



Illustration 1g00330805


Air Conditioning Switch (1) - Push in the switch in order to activate the air conditioning. Push in the switch again in order to allow the button to extend and turn off the air conditioning.

Operate the air conditioning and heating simultaneously in order to aid in defrosting the windshield. The air conditioner will remove moisture from the air while the heater warms the air in the cab.


Temperature Control (2) - The temperature control knob adjusts the blend of heated air and cooled air. Rotate the knob in a clockwise direction for warmer air. Rotate the knob in a counterclockwise direction for cooler air.


Fan Speed Switch (3) - Three fan speeds are available. Rotate the switch fully in a counterclockwise direction in order to select the low speed setting. Rotate the switch in a clockwise direction in order to select the HIGH or PURGE settings.

The fan will operate whenever the engine start switch is in the ON position. The fan provides cab pressurization in order to minimize the entrance of dust. When possible, operate the tractor while the windows are closed in order to keep the cab pressurized.

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