. OPERATION EXPLANATION OF COMPONENTS MONITOR SYSTEM TESTING ACTUATION OF MACHINE MONITOR SYSTEM 3 - 6 NOTIC Before startin startin ON position, lamps ( 1) and ( 3) (in t he diagram on the right) light up fo r approx. 3 seconds and the alarm buzze r sounds f or approx. 3 s econds. After 3 Lamps second (2) and s all l (3) st amps exce ay on until pt lamps (2) a the engine st If any l amps d o not l ight up the re is probabl y a failure or a disconnection. Ask yo ur Komatsu d istributor to diagnose t he problem Lam p (3) lig hts u p only for t he emergenc y steering device.