Komatsu WA480-8, Operation & Maintenance Manual

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WARNING DISPLAY
The caution lamps displayed on the warning display section are
as follows. Take appropriate measures according to the speci-
fied remedies.
REMARK
• When 1 type of alarm is generated, it is displayed on cau-
tion lamp (A).
• When 2 types of alarm are generated, they are displayed
on caution lamps (A) and (B).
• When 3 types of alarm are generated, they are displayed
on caution lamps (A) and (B) alternately at intervals of 2
seconds.
STEERING SYSTEM CAUTION LAMP
The steering system caution lamp warns about abnormality in
the steering system.
If the caution lamp lights up in yellow and action level “L01” is
displayed, always perform inspection and maintenance after
the operation is finished.
Ask your Komatsu distributor for the inspection and mainte-
nance as needed.
STEERING OIL PRESSURE CAUTION LAMP
The steering oil pressure caution lamp warns the operator that
the steering oil pressure is below the specified value.
When action level “L03” is displayed
If the steering oil pressure drops below the specified value
while the engine is running, 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 is not displayed and lamp lights up in red
When the engine is started, the caution lamp lights up in red until the steering oil pressure rises above the
specified value.
At the same time, the centralized warning lamp lights up and alarm buzzer sounds intermittently.
Wait until the caution lamp goes out, and then start the machine.
OPERATION EXPLANATION OF COMPONENTS
3-23