Komatsu H75051 Operation & Maintenance Manual page 87

OPERATION
SYSTEM CAUTION LAMP
The system caution lamp warns about abnormality in the sys-
tem.
When action level "L03" is displayed
The caution lamp lights up in red.
At the same time, the centralized warning lamp lights up and
alarm buzzer sounds intermittently.
Stop the operation, move the machine to a safe place, stop the
engine, then ask your Komatsu distributor for inspection and
maintenance.
When action level "L01" is displayed
The caution lamp lights up in yellow.
When you finish the operation, always perform the inspection and maintenance.
Ask your Komatsu distributor for the inspection and maintenance as needed.
WORK EQUIPMENT SYSTEM CAUTION LAMP
The work equipment system caution lamp warns about abnor-
mality in the work equipment system.
When action level "L03" is displayed
The caution lamp lights up in red.
At the same time, the centralized warning lamp lights up and
alarm buzzer sounds intermittently.
Stop the operation, move the machine to a safe place, stop the
engine, then ask your Komatsu distributor for inspection and
maintenance.
When action level "L01" is displayed
The caution lamp lights up in yellow.
When you finish the operation, always perform the inspection and maintenance.
Ask your Komatsu distributor for inspection and maintenance as needed.
BRAKE OIL TEMPERATURE CAUTION LAMP
The brake oil temperature caution lamp warns about overheat-
ing of the brake oil.
If the machine is operated continuously under severe condition
or the brake is used frequently on a long downhill slope, the
brake oil temperature increases.
If the caution lamp lights up in yellow, perform the following ac-
tions.
1.
Release the accelerator pedal to decrease the speed.
2.
Avoid frequent use of the brake.
Do not continue depressing the brake pedal but depress it
intermittently.
When the machine is operated with the brake used less frequently as described above for a while, the brake oil
temperature decreases and the caution lamp goes out.
EXPLANATION OF COMPONENTS
3-21