Komatsu H75051 Operation & Maintenance Manual page 126

EXPLANATION OF COMPONENTS
2.
Select "Manual Fan Reverse Mode" on the "Machine Set-
ting and Information", and press ENTER switch (1).
REMARK
The fan rotation switches from the normal direction to the
reverse direction only when all of the following conditions
are met.
• The engine coolant temperature is less than 102 °C.
• The boost temperature is less than 119 °C.
• The HST oil temperature is less than 100 °C.
• It has been 20 seconds or more since the engine was
started.
3.
Press ENTER switch (1) to rotate the fan in the reverse di-
rection, or press RETURN switch (2) to cancel.
If the fan reverse operation is performed without satisfying
the condition for reversing the fan, the screen shown in the
figure is displayed, and the fan rotation direction cannot be
switched.
In this case, press RETURN switch (2), and then repeat
the procedure from the first.
4.
Fan reverse rotation pilot lamp (3) flashes, then lights up.
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OPERATION