Komatsu PC130-6K 2001 Operation & Maintenance Manual page 62

Hydraulic excavator
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11. EXPLANATION OF COMPONENTS
METERS
3.
ENGINE WATER TEMPERATURE GAUGE
This gauge indicates the engine cooling water temperature.
If the temperature is normal during operation, the green range will
light up.
If the red range lights up during operation, the overheat prevention
system will be actuated.
The overheat prevention system acts as follows.
Red range
lights up:
Engine water temperature monitor
Red range
lights up:
Engine speed is lowered further to low idling, engine water tempera-
ture monitor
flashes and alarm buzzer sounds at the same time.
The overheat prevention system is actuated until the temperature
enters the green range.
When red range
andthe fuel control dial is turned to the low idling position, the display wil
be cancelled.
4.
FUEL GAUGE
This gauge indicates the amount of fuel in the fuel tank.
If the fuel level is normal during operation, the green range will light
up.
If only the red range lights up during operation there is less than 25
liters of fuel remaining in the tank so check and add fuel.
After the starting switch is turned ON, the correct level may not be
displayed for a moment, but this does not indicate any abnormality.
When stopping the engine turn the starting switch ON and check that
the monitor lamps on items A, B, C and D and the meters light up.
5.
DISPLAY
This normally displays the clock time. If any error occurs, it indicates
error information while the starting switch is ON.
2-10
flashes
lights, if the engine water temperature is reduced

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