Komatsu PC290LC-6K Operation & Maintenance Manual page 52

11. EXPLANATION OF COMPONENTS
11.1.3 C: EMERGENCY STOP ITEMS
If any monitor lamp flashes, stop the engine or run it at low
idling, and take the following action.
1. ENGINE WATER TEMPERATURE
If the temperature of the engine cooling water becomes abnormally
high, the monitor lamp flashes, and the overheat prevention system is
automatically actuated to reduce the engine speed.
Stop operations and run the engine at low idling until the engine wa-
ter temperature gauge enters the green range.
2. RADIATOR WATER LEVEL
If the radiator water level drops, the monitor lamp flashes. Stop the
engine, check the radiator water level, and add water if necessary.
3. ENGINE OIL PRESSURE
If the engine oil pressure drops below the normal pressure, the moni-
tor lamp flashes. At this item, stop the engine and inspect it according to
16.6 "OTHER TROUBLE."
REMARK
While the starting switch is ON, the lamp remains lit and goes off
once the engine is started. When the engine starts, the buzzer may sound
for a short time, however, this does not indicate a fault.
2-8
CAUTION