Komatsu WA500-6H, Operation & Maintenance Manual, Page: 160 / 412

3.3 Operation Operation
3-94
WA500-6H – VEAM430100
Check before starting
If the machine is at an angle, reposition it level before checking.
Carry out the following inspections and cleanings every day
before starting the engine for the day´s work.
Check monitor panel
1. Turn starting switch to the ON position (B).
2. Check that all the monitors, gauges, and the central warning
lamp light up for approx. 2 seconds and the alarm buzzer
sounds for approx. 2 sec.
If the lamps do not light up, there is probably a failure or dis-
connection. Contact your KOMATSU distributor for inspec-
tion.
Check dust indicator
1. If air cleaner clogging caution lamp (1) on the machine mon-
itor lights up, clean the air cleaner element.
For details of the method of cleaning, see "Cleaning or
replacing outer element (4-29)".
REMARK
A dust indicator is installed inside the engine hood on the left
side of the machine. The dust indicator shows the condition of
clogging of the air cleaner in 5 stages. This makes it possible to
check how clean the element is and when it should be replaced.
GK050049
A
B
C
GK050027
GK050027
1
GK050111