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OPERATION
EXPLANATION OF COMPONENTS
The engine system caution lamp warns about abnormality in
the engine system.
When action level "L04" is displayed
The caution lamp lights up in red and the alarm buzzer sounds
continuously.
Stop the machine immediately and ask your Komatsu distribu-
tor for inspection and maintenance.
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 the 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 OIL LEVEL CAUTION LAMP
Engine oil level caution lamp warns about drop of engine lubri-
cating oil level.
It displays only while the engine is stopped.
When oil level is low
The caution lamp lights up in yellow and indicates action level
"L01".
The oil level in the engine oil pan is insufficient.
Check the oil level in the oil pan and add oil.
For detail, see "METHOD FOR CHECKING OIL LEVEL IN EN-
GINE OIL PAN, ADDING OIL".
If the oil level drops again in a short time, the engine oil may be leaking.
For the inspection and maintenance, ask your Komatsu distributor.
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