Komatsu PC138US-11 Operation & Maintenance Manual page 110

EXPLANATION OF COMPONENTS
FUEL GAUGE
Fuel gauge shows the amount of fuel in the fuel tank.
The indicator should be in the green range during operations.
If the indicator starts to enter red range (A) during operation,
the remaining fuel is 52 ℓ or less, so perform inspection and
add fuel.
(A) to (B): Red range
(A) to (C): Green range
REMARK
When the indicator reaches red range (B), the remaining fuel is 32 ℓ or less.
When the indicator is in red range (B), fuel level lamp (D) lights up in red.
The correct fuel level may not be displayed for a short time when the starting switch is turned to ON position, but
this is not an abnormality.
SERVICE METER / CLOCK
The service meter/clock shows the total hours of operation of the machine or the present time.
When the engine is running, the service meter advances even when the machine is not moving. The service
meter advances 0.1 every 6 operation minutes, regardless of the engine speed.
• Service meter display
• Clock display (12-hour display)
• Clock display (24-hour display)
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OPERATION