Komatsu PC138USLC Operation & Maintenance Manual page 62

OPERATION
REMARK
When the engine is started, the battery voltage may suddenly drop depending on the temperature and the battery
condition. If this happens, the display on the machine monitor may momentarily go out, but this does not indicate
any abnormality.
Stopping Engine When Situation is Normal
When the starting switch is turned to the ON position, ending screen JJ is displayed for 5 seconds, then on the
display goes out.
DETAILED CONTROLS AND GAUGES
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