Operating Instructions - Section 32 10/04 OM3215 Page 32-16 (23, Figure 32-8) (Not Used) BLANK. Reserved for future Options. Hourmeter The hourmeter (24, Figure 32-8) registers the total number of hours the engine has been in op- eration. (25, Figure 32-8) (Not Used) BLANK. Not used in this truck application. (26, Figure 32-8) (Not Used) BLANK. Not used in this truck application. Headlight Switch The instrument panel lights, clearance lights, and the headlights are controlled by this three position rocker type switch (27, Figure 32-8). 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, clear- ance, 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. Panel Light Dimmer The panel light dimmer control (28, Figure 32-8) 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 ON position is reached at full clockwise rotation.
Payload Meter Switch The Payload Meter Switch (29, Figure 32-8) is a two-way, momentary switch. The top posi- tion is the Select position. The Select position is used to step through the different displays. The lower position 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 description of the Payload Meter System and its functions.