Komatsu PC290LC-11 Operation & Maintenance Manual page 102

EXPLANATION OF COMPONENTS OPERATION
WATER SEPARATOR CAUTION LAMP
The water separator caution lamp warns that water is accumu-
lated in the water separator.
When abnormal
The caution lamp lights up in red.
Water is accumulated in the water separator.
Stop the engine and drain the water from water separator.
For detail, see "METHOD FOR CHECKING WATER SEPARA-
TOR, DRAINING WATER AND SEDIMENT (3-143)".
REMARK
The water separator forms one unit with the fuel pre-filter.
The water separator is installed at the bottom of the fuel pre-
filter as detachable condition.
AIR CLEANER CLOGGING CAUTION LAMP
Air cleaner clogging caution lamp warns about clogging of the
air cleaner.
When clogged
The caution lamp lights up in yellow and indicates action level
"L01".
The air cleaner is clogged.
Stop the engine and check and clean the air cleaner.
For detail, see "METHOD FOR CHECKING, CLEANING AND
REPLACING AIR CLEANER".
AIR CONDITIONER SYSTEM CAUTION LAMP
Air conditioner system caution lamp warns about abnormality in
air conditioner system.
When abnormal
The caution lamp lights up in yellow and indicates action level
"L01".
The air conditioner system has abnormality.
Ask your Komatsu distributor for inspection and maintenance
as soon as possible.
MAINTENANCE TIME CAUTION LAMP
Maintenance time caution lamp displays notices and alarms
concerning maintenance time.
This lamp lights up when the starting switch is turned to the
"ON" position. It goes out after 30 seconds and the display
changes to the standard screen.
When the due time is over
The caution lamp lights up in red.
The maintenance time is over.
If no action is taken, the machine performance will become
worse and the machine life will be shortened.
Perform necessary maintenance as soon as possible.
3-30