OM3018 08/07 Operation - Section 3 Operating Instructions Page 3-35 FIGURE 3-8. INSTRUMENT PANEL - RIGHT SIDE 55. Temperature Adjustment Lever 57. Air Selector Lever The Temperature Adjustment Lever (55, Figure 3-8) is used to adjust the cab air temperature for heating or cooling. The Air Selector Lever (57) selects the source of air. Outside air enters through a filter and is sent to the cab to ventilate the inside the cab. In this way, a pleasant working environment is always maintained even on dusty job sites. Move the lever to the left toward "WARM" (red bar) for higher temperature. Move the lever to the right toward "COOL" (blue bar) for lower temperature.
Move the lever to the left toward "FRESH" for outside air. Air is taken from outside to mix with the air inside the compartment. 56. Blower Switch Move the lever to the right toward "RECIRC" for recir- culation of cab air only. This is generally used to cool the cab quickly. The Blower Switch (56) is a four position switch to control fan speed. Move the lever to fan position desired. 58. Vent Selector Lever The Vent Selector Lever (58) directs the cool or warm air through one or more of the following outlets: front vents; foot vents; or defroster vents. The positions - from left to right - are as follows:
Move the lever to the left toward "VENT" to direct heated or cooled air through the front vents (59). "OFF" - Low - Medium - High Low, Medium, and High are indicated by circular marks of increasing size. Move the lever to the center to "HEAT" to direct air to the foot vents and defroster vents for heating and dehumidifying. When in the "OFF" position, the air conditioner com- pressor is de-activated. Move the lever to the right to "DEF" to direct air to the defroster vents to remove and/or prevent mist from forming inside the windshield.