Komatsu GALEO HM350-2 Operation & Maintenance Manual page 73

OPERATION
EXPLANATION OF COMPONENTS
FUEL GAUGE
This meter (3) shows the amount of fuel remaining in the fuel tank.
When the fuel level caution lamp lights up, it indicates that there is
less than 75 liters (19.82 US gal) of fuel remaining in the tank, so
check and add fuel.
ENGINE WATER TEMPERATURE GAUGE
This meter (4) indicates the engine water temperature.
It should be in the white range during operation.
If it is in the red range during operation, the alarm buzzer will sound
and the central warning lamp will light up at the same time. "E02
ENGINE OVERHEAT" is displayed on the character display, so
run at the engine under no load at a mid-range speed and wait until
the meter enters the white range.
If it is in the red range, the engine output is automatically limited.
TORQUE CONVERTER OIL TEMPERATURE GAUGE
This meter (5) indicates the torque converter oil temperature.
It should be in the white range during operation.
If it is in the red range during operation, the alarm buzzer will sound
and the central warning lamp will light up. "E02 TC OVERHEAT"
is displayed on the character display, so run the engine under no
load at a mid-range speed and wait until the meter enters the white
range.
RETARDER OIL TEMPERATURE GAUGE
This meter (6) indicates the retarder oil temperature.
It should be in the white range during operation.
If it is in the red range during operation, the alarm buzzer will sound
and the central warning lamp will light up at the same time. "E02
BRAKE OVERHEAT" is displayed on the character display, so
stop the machine in a safe place, set the shift lever to the N
position, run the engine under no load at a mid-range speed and
wait until the lamp goes out.
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