Komatsu PW98MR-10 Operation & Maintenance Manual page 90

EXPLANATION OF COMPONENTS OPERATION
The engine system caution lamp warns about abnormality in
the engine system.
When action level "L03/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 "L01" is displayed
The warning lamp lights up in yellow.
Some functions may be restricted from use, but the machine can operate.
However the machine can operate.
When you finish the operation, always have the inspection and maintenance performed.
ENGINE SUDDEN STOP BY AUTO IDLE STOP CAUTION LAMP
The auto idle stop sudden stop caution lamp warns about the
abnormality when the engine is stopped abruptly by the auto
idle stop function for more than the specific times.
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.
The engine durability may be lower but the machine can operate.
When you finish the operation, always perform the inspection and maintenance.
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 indicator tells the operator that the engine speed is higher
than the permitted range.
The caution lamp lights up in red and the alarm buzzer sounds
intermittently.
If the engine speed increases even further, the intervention lev-
el "L02" is displayed.
Bring the machine to a moderate engine speed and travelling
speed.
RKA48740
3-22
WENAM00061