OM3241 Operation - Section 32 Operator Cab and Controls Page 32-21 Check Engine This amber indicator light will illumi- nate if a malfunction is detected by the engine electronic control sys- tem. Service Engine Indicator (CENSE) When the key switch is turned to the RUN position before starting the engine, amber service engine indicator light (D6) will illuminate for about two seconds. The light will then turn off if no faults are detected in the system. If this indicator remains on, or flashes when equipped with the Centry™ fuel control sys- tem, alert maintenance personnel as soon as possi- ble.
If this indicator illuminates, truck operation may con- tinue, but maintenance personnel should be alerted as soon as possible. Service Engine Indicator (AEM) Komatsu Engines w/Centry™ Fuel Control This indicator monitors the Centry™ fuel system. During engine operation, if a fault is detected in the system, the light will turn on and stay on indicating a warning fault. For more severe faults that can affect engine operation, the light will flash indicating that immediate attention is required. Amber service engine indicator light (A5) will illuminate when the Advanced Engine Monitor (AEM) system detects a fault. A warning buzzer will also sound.
Warning faults (light on) are ones that require attention in the near future, but in most conditions, will not greatly affect governing performance. High Wheel Motor Temperature Indicator When high wheel motor temper- ature indicator light (B5) is illu- minated and the alarm sounds, high wheel motor temperature is indicated. Stop the truck, place the selector switch in NEUTRAL, and raise the engine rpm to high idle for several minutes to cool the wheel motors. If the indicator does not turn off, notify maintenance personnel.
Severe faults (light flashing) are ones that require immediate attention, because Centry™ governor performance could be significantly affected, resulting in a backup mode of operation. Active fault conditions must be corrected as soon as possible. Refer to Lamp Test Switch for an additional descrip- tion of this light's function. Blower Fault Warning Hazard Warning Light Switch Blower fault warning light (C5) will flash on and off. An alarm will sound if a malfunction occurs in the cooling air circuit for the alter- nator and motorized wheels. Stop the truck immediately, and notify maintenance personnel if the warning light is illuminated.
Damage to electrical components may result without the proper ventilation of the blower. Hazard warning light switch (7) 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.