OM3226 Operation - Section 32 Operator Cab and Controls Page 32-15 Voltmeter Gauge Voltmeter gauge (19, Figure 32- 11) indicates the voltage of the 24V battery system. Normal indi- cated voltage at high rpm is 27 to 28 volts with the batteries in the fully charged condition. When key switch (1) is in the RUN posi- tion and the engine is stopped, the voltmeter gauge indicates the battery charge condition. Headlight Switch Instrument panel lights, clear- ance lights, and headlights are controlled by headlight switch (27, Figure 32-11). 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 the headlights, as well as the panel, clearance, and tail lights. Engine Oil Pressure Gauge Engine oil pressure gauge (20, Figure 32-11) indicates the pres- sure in the engine lubrication system in pounds per square inch (psi). Normal operating pressure after engine warm up is 138 - 250 kPa (20 to 35 psi) at idle speed. If oil pres- sure is below this range, a problem may exist. Shut the engine off and notify maintenance personnel.
Panel Illumination Lights Dimmer Rheostat rheostat (28, and panel lights. Rotating the knob to the full counterclockwise position turns the panel lights on to the brightest condition. Rotating the knob clockwise continually dims the lights until the OFF position is reached at the full clockwise rotation. Engine Water Temperature Gauge Engine water temperature gauge (21, Figure 32-11) indi- cates the temperature of the coolant in the engine cooling system. The temperature range after engine warm-up in normal conditions is 74° - 91°C (165° - 195°F). Temperatures outside of this range may indicate a problem.
Payload Meter Switch Payload meter switch (29, Figure 32-11) is a two-way, momentary switch. The top position is the select position which is used to step through the different dis- plays. The lower position is the set position which is used to set the operator ID or clear the load and total ton counters. Refer to Payload Meter in this module for a complete description of the payload meter system and its functions. Fuel Gauge Fuel gauge (22, Figure 32-11) indicates how much diesel fuel is in the fuel tank. Fuel tank capacity is 3217 liters (850 gallons.) Engine Hourmeter Engine hourmeter (24, Figure 32-11) displays the total number of hours the engine has been in operation.
ghts ts dimmer re 32-11) o vary the