OM3216 3/10 Operator Cab and Controls - Section 32 Page 32-19 ELECTRONIC DISPLAY PANEL The character display shows KOMATSU SYSTEM CHECK for three seconds. When the engine starting switch is turned to the ON position before starting the engine, a system check is performed for 30 seconds. The following system checks occur: If the lamps do not work, a failure in the circuit has occurred. Contact your Komatsu distributor for inspection. The central warning lamp illuminates for two seconds, and then turns off.
When the starting switch is turned ON, if the shift lever is not in the NEUTRAL position, after completion of the system check, the shift lever position pilot lamp and the central warning lamp will illuminate, and the alarm buzzer will continue to sound intermittently. When this happens, if the shift lever is in NEUTRAL, N is displayed, the central warning lamp turns off, and the buzzer stops. The alarm buzzer sounds for two seconds, and then stops. The monitor lamp alternately illuminates for two seconds and then turns off for one second. The shift indicator alternately displays 88 for two seconds and then turns off for one second.
After a three second system check, the meters start to function. FIGURE 32-12. CENTER ELECTRONIC DISPLAY PANEL A. Character Display B. Caution Items C. Emergency Stop Items D. Meter Display Portion E. Central Warning Lamp