11. EXPLANATION OF COMPONENTS 6. LAMP SWITCH This switch is used to turn on the front lamps, working lamps, additional lamp at the top front of the cab, rear lamps, and monitor lighting. OFF ON 7. ALARM BUZZER STOP SWITCH This is used to stop the alarm buzzer if it sounds to warn of an abnormality during operation. AM089420 Stop AM089440 8. MACHINE PUSH-UP SWITCH This switch is used to switch the safety valve set pressure at the head end of the boom cylinder to two levels. 1 Low pressure setting: The boom thrust force is weak,so the swaying of the chassis is small during digging operations, and digging opera- tions can be carried out smoothly.
This is used for general digging opera- tions on normal ground, soft rock, or blasted rock. 2 High pressure setting: The thrusting force of the boom be- comes more powerful, so it is easy to twist and swing or escape from soft ground. It is effective in carrying out digging operations using the bucket and the weight of the machine in confined areas. AM089450 9. HORN SWITCH Press the switch on the right work equipment control lever to sound the horn. AM089470 10. KNOB SWITCH The knob switch on the left work equipment control lever is used to actuate the power max. or swift slow-down functions. Keep the switch pressed. The power max.
function can be used for a maximum of 8.5 seconds in H/O or G/O mode. The swift slow- down function can be used for as long as the switch is kept pressed. AM089480 2-17