OPERATING SECTION 4 Page 11 4.5. CAB CONTROLS Fig. 4.4. Air Conditioner, Heater and Accessories Controls 1. Door Wiper Knob and Washer Pushbutton 2. Window Wiper Knob and Washer Pushbutton 3. Heater and/or Cooler Pressurized Control Knob 4. Temperature Control Knob DOME LIGHT Dome light is switched on with switch mounted in the light. CAB VENTILATION NOTE: For maximum cooling turn the temperature control knob fully to the left. 1. DOOR WIPER KNOB This knob activates window wipers and washers. Principle of operation is similar to wiper timing knob and washer. 2. WINDOW WIPER KNOB This knob activates window wipers and washers.
The switch enables two-speed selection of the wipers, low and high speed when turn to the left and push the washer button to spray washer fluid. 3. HEATER AND/OR COOLING PRESSURIZER FAN SPEED CONTROL KNOB This knob controls the speed of the fan circulating air inside the cab. It has three speed settings low, medium and high. Turn the knob to the left for three fan speed selections when cooling the air, i.e. low, medium and high. Turn the knob to right for three fan speed selections when heating air i.e. low, medium and high. To turn the fan off, turn knob to center position. DRESSTA TD-40C