Komatsu Galeo PC27MR-2 Operation & Maintence Manual page 59

OPERATION
Meter Display Portion
(1) Engine coolant temperature gauge
(2) Fuel gauge
Engine Coolant Temperature Gauge
This meter (1) shows the engine coolant temperature.
During operation, the indicator should be in range (A).
If the indicator enters red range (B) during operation, pilot lamp (C)
flashes and the buzzer sounds at the same time. If this happens,
run the engine at low idle and wait until pilot lamp (C) goes out and
the indicator goes down to range (A).
Fuel Gauge
This meter (2) shows the fuel level in the fuel tank.
F indicates that the tank is full.
E indicates that the fuel level is low. If the fuel level goes below 4.5
liters (1.19 US gal), the indicator enters red range (A), and at the
same time, pilot lamp (B) flashes.
If the indicator enters red range (A) or pilot lamp (B) flashes, check
the fuel level and add fuel.
The correct level may not be displayed for a short time after the
starting switch is turned to the ON position, but this is not a
problem.
DETAILED CONTROLS AND GAUGES
(3) Service meter
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