Komatsu PW118MR-11 Operation & Maintenance Manual page 100

EXPLANATION OF COMPONENTS OPERATION
FAN CONTROL SYSTEM CAUTION LAMP
The fan control system caution lamp warns about abnormality
in the fan control system.
When action level "L03" is displayed
The caution lamp lights up in red and the alarm buzzer sounds
intermittently.
Stop the operation and move the machine to a safe place, then
ask your Komatsu distributor for inspection and maintenance.
When action level "L01" is displayed
The caution lamp lights up in yellow.
Some functions may be restricted for use, but the machine can operate.
When you finish the operation, always have the inspection and maintenance performed.
Ask your Komatsu distributor for inspection and maintenance as needed.
ENGINE OIL PRESSURE CAUTION LAMP
Engine oil pressure caution lamp warns about abnormality of
engine lubricating oil pressure.
When oil pressure is low
The caution lamp lights up in red and indicates action level
"L03".
The alarm buzzer sounds intermittently.
Stop the operation and move the machine to a safe place, then
ask your Komatsu distributor for inspection and maintenance.
ENGINE OVERRUN CAUTION LAMP
This lamp signal to the operator that the engine speed is higher
than the permitted range.
The caution lamp is red and the alarm buzzer operates inter-
mittently.
If the engine speed increases further, the action level "L02" is
displayed .
Take the machine to a moderate engine speed and driving
speed.
RKA48740
CHARGE LEVEL CAUTION LAMP
Charge level caution lamp warns about abnormality in the
charging system while the engine is running.
When abnormal
The caution lamp lights up in red and indicates action level
"L03".
The alarm buzzer sounds intermittently.
Charging is not be performed normally while the engine is run-
ning.
Stop the engine and check the fan belt for damage, and then
ask your Komatsu distributor for inspection and maintenance.
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