Operation - Section 3 OM3037 Page 3-28 Operating Instructions BLANK. Reserved for future Options. (23, Figure 3-6) (Not Used) (24, Figure 3-6) HOURMETER The hourmeter registers the total number of hours the engine has been in operation. (25, Figure 3-6) (Not Used) BLANK. Not used in this truck application. (26, Figure 3-6) (Not Used) BLANK. Not used in this truck application. (27, Figure 3-6) HEADLIGHT SWITCH The instrument panel lights, clearance lights, and the headlights are controlled by this three position rocker type switch. “Off” is selected by pressing the bottom of the switch.
Press the top of the switch until it reaches the first detent to select the panel, clearance, and tail lights only. Press the top of the switch again, until it reaches the second detent to select headlights, as well as panel, clearance, and tail lights. (28, Figure 3-6) WINDSHIELD WIPER and WASHER The windshield wiper control switch is a four position rotary switch with intermittent wiper de- lay and wash feature. “Off” position is the detented position when the knob is rotated fully counterclockwise against the stop. The intermittent wiper position is located between “Off” and the first detent position, when rotating the knob clockwise.
Rotating the knob closer to the first detent position decreases the time interval between wiper strokes. Rotate the knob clockwise to the first detent position for slow speed. Rotate the knob to the second detent position for fast speed. To use the windshield washer, press and hold the knob “in” to activate the windshield washer system. (29, Figure 3-6) PANEL LIGHT DIMMER The panel light dimmer control is a rheostat which allows the operator to vary the brightness of the instruments and panel lights. Rotating knob to the full counterclockwise position turns panel lights “On” to brightest condition.
Rotating knob clockwise continually dims lights until “Off” position is reached at full clockwise rotation. The Payload Meter Switch is a two-way, momentary switch. The top position is the Select position. The Select position is used to step through the different displays. The lower posi- tion is the SET position. The SET position is used to set the Operator ID or clear the load and total ton counters. Refer to Section 6, Optional Equipment, for a more complete descrip- tion of the Payload Meter System and its functions. (30, Figure 3-6) PAYLOAD METER SWITCH