. OPERATION EXPLANATION OF COMPONENTS MONITOR SYSTEM TESTING ACTUATION OF MACHINE MONITOR SYSTEM NOTICE 3 - 6 Before st ON position, lamps (1) and (3) (in the diag ram on the right) l ight up for approx. 3 seconds and the al arm buzzer soun ds for approx. 3 se conds. After 3 se Lamps (2) conds all lamps e and (3) stay on u xcept lamps (2) a ntil the engine sta If any lam ps do not light up there is probably a failure o r a disconnection.
Ask your Komatsu distribu tor to diagnose th e problem Lamp ( 3) lights up only f or the emergency steering device If the dire ctional lever is n ot in the neutral position when the starting switch is turned ON, th e central warnin g lamp l ights up and the alarm bu zzer sounds in termittently. If this happens, return the direction buzzer w allever to the ne ill stop.