Komatsu H75051 Operation & Maintenance Manual page 89

OPERATION
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 OIL PRESSURE CAUTION LAMP
The steering oil pressure caution lamp warns the operator that
the steering oil pressure is below the specified value.
If the engine oil pressure drops below the specified value while
the engine is running, the caution lamp lights up in red and the
action level "L03" is displayed.
At the same time, the centralized warning lamp lights up and
the alarm buzzer sounds intermittently.
Stop the operation, move the machine to a safe place, stop the
engine, then ask your Komatsu distributor for the inspection
and maintenance.
HST SYSTEM CAUTION LAMP
HST system caution lamp warns about abnormality in the HST
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 the inspection and maintenance as needed.
HST OIL FILTER CLOGGING CAUTION LAMP
HST oil filter clogging caution lamp warns about clogging of the
HST oil filter.
When clogged
The caution lamp lights up in yellow, and action level "L01" is
displayed.
Replace the oil filter by referring to "METHOD FOR REPLAC-
ING HST OIL FILTER CARTRIDGE (4-63)".
EXPLANATION OF COMPONENTS
3-23