Heater and Air Conditioning Controls

The recirculating fan controls air flow through the louvers. Knob (C) selects one of three recirculating fan speeds or the off position. Knob should be in the off position during cold weather start-up before engine comes up to operating temperature.

Rotate the temperature control knob (B) to control the air temperature.

To increase air temperature move knob 3 mm (1/8 in.) into the red. Wait 3 to 4 minutes, allowing the air temperature to stabilize, before repeating the procedure if needed.

The air conditioning is controlled by the ON (I) and OFF (O) switch (A). If maximum cold is needed, turn temperature control knob (B) to the maximum position in the blue area and turn fan control knob (C) to the fastest fan position. Lower the fan speed to medium as the cab cools, then lower the fan speed to low if necessary. Wait 3 to 4 minutes between adjustments, allowing the air temperature to stabilize.

To defog the windshield, turn air conditioning switch (A) on and adjust temperature with temperature control knob (B).

If the cab is still too cool, turn temperature control knob 3 mm (1/8 in.) toward the red. Wait 3 to 4 minutes, allowing the air temperature to stabilize, before repeating the procedure if needed.

If the A/C compressor stays off 3 to 4 minutes and the air smells musty, move temperature control knob (B) slightly toward the red and increase fan speed one position.

A-A/C Switch
B-Temperature Control Knob
C-Fan Speed Knob

AG,OUO6038,1052 -19-08OCT99-1/1