HOSE A. 1J4536 - Caterpillar

Illustration 1 g00881978
The heating and air conditioning controls are located on the switch panel in the upper right side of the cab.
Heater - Press the top of switch (2) into position (A) in order to turn on the heater.
Air Conditioner - Press the bottom of switch (2) into position (C) in order to turn on the air conditioner. Place switch (2) into the middle position (B) in order to turn off the heater and air conditioner.
Fan Speed Switch (3) - The switch controls the speed of the blower fan motor for the heating and air conditioning system. (D) Low (E) Medium (F) High
Pressurizing - The cab can be pressurized in order to keep out dust. Close the door and the windows in order to pressurize the cab. Place heating and air conditioning switch (2) into middle position (B). Set fan switch (3) to the desired speed. The volume of dust that is kept from entering the cab depends on the speed of the fan.
Temperature Control - Temperature control knob (1) is a rotary switch. Turn knob (1) clockwise for warmer air. Turn knob (1) counterclockwise for cooler air.
Defrost - Press the bottom of switch (2) in order to turn on the air conditioner. Set fan speed switch (3) to the desired speed. Adjust temperature control knob (1) so that the windows remain free of moisture.