Komatsu H75051 Operation & Maintenance Manual page 127

OPERATION
If the condition for reversing the fan is not satisfied,
changeover condition waiting pilot lamp (4) lights up in red.
5.
Set the engine speed to high idle and perform thecleaning.
6.
After finishing the cleaning, set the engine speed to low
idle.
7.
If the menu switch is pressed on the standard screen, the
screen shown in the figure is displayed.
Press ENTER switch to return the fan to the normal rota-
tion mode.
Fan reverse rotation pilot lamp (3) flashes and then goes
out.
REMARK
If one of the following conditions is satisfied, the fan rotation re-
turns from reverse direction to normal direction.
• Perform the manual fan reverse operation again while the
fan is rotating in reverse.
• 10 minutes elapses after the fan rotation direction is re-
versed.
• Stop the engine.
• The coolant temperature, boost temperature, or HST oil
temperature overheat (the caution lamp of the oil tempera-
ture gauge or coolant temperature gauge on the machine
monitor lights up in red, then action level "L02" is dis-
played) while the fan is rotating in reverse.
RADIATOR FAN AUTOMATIC REVERSE MODE
When rotating the fan in the reverse direction, beware extremely that dirt will not fly out and cloth, etc.
will not be wound in the fan.
Dust may be blown up. Check that there is no person around the machine while the fan is rotating in the
reverse direction.
In the automatic fan reverse mode, you can configure the setting for automatically rotating the fan in the reverse
direction to blow off mud and dirt sticking to the radiator.
k k
CAUTION
EXPLANATION OF COMPONENTS
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