Komatsu GALEO HM350-2 Operation & Maintenance Manual page 55

EXPLANATION OF COMPONENTS
Check central warning lamp, alarm buzzer, monitor lamps, and meters.
Before starting the engine, set the starting switch in the ON position and check that the machine monitor operates
as follows.
The central warning lamp lights up for 2 seconds, then goes off.
The alarm buzzer sounds for 2 seconds, then stops.
The monitor lamps light up for 2 seconds, then go off for 1 second.
The gearshift indicator displays "88" for 2 seconds, then goes off for 1 second.
The meters start the operations after the system is checked for 3 seconds.
The character display displays "KOMATSU" for 3 seconds.
If the machine monitor does not operate as explained above, there is probably a failure, so please contact your
Komatsu distributor for inspection.
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OPERATION