Komatsu WA200-8 Operation & Maintenance Manual page 121

OPERATION
RADIATOR FAN MANUAL 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 manual fan reverse mode, the fan may be rotated in reverse to blow off mud or dirt sticking to the radiator.
1.
Set the engine speed to low idle.
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 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.
k k
CAUTION
EXPLANATION OF COMPONENTS
3-57