Operation - Section 3 OM3037 Page 3-34 Operating Instructions B5. High Wheelmotor Temperature (Optional) When this indicator is illuminated and alarm sounds, high wheel motor temperature is indi- cated. Stop truck, place Selector Switch in “Neutral” and raise engine RPM to high idle for sev- eral minutes to cool wheel motors. If indicator does not turn off, notify maintenance personnel. C5. Motor Blower OFF The motor blower warning light will flash on and off and an alarm will sound if a malfunction occurs in the cooling air circuit for the alternator and motorized wheels. Stop the truck imme- diately and notify maintenance personnel if warning light illuminates.
Damage to electrical components may result without proper ventilation of rotating equipment. D5, E5, A6, B6, C6, D6, E6: NOT USED Not currently used. Reserved for future use or options. The hazard warning light switch flashes all the turn signal lights. Pressing the bottom side of the rocker switch (toward the triangle) activates these lights. Pressing the top side of the rocker switch (toward the “OFF” symbol) turns these lights off. (7) HAZARD WARNING LIGHTS (8) LAMP TEST SWITCH The Lamp Test switch is provided to allow the operator to test the indicator lamps prior to starting the engine.
To test the lamps, and the warning horn, turn the key switch (1, Figure 3- 6) to the “Run” position and press the bottom side of the rocker switch for the “Check” posi- tion. All lamps should illuminate, except those which are for optional equipment that is not in- stalled. The warning horn should also sound. Any lamp bulbs which do not illuminate should be replaced before operating the truck. Releasing the spring-loaded switch will allow the switch to return to the “Off” position.