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Fan Reverse Rotation Switch
Fan reverse rotation switch (1) reverses the hydraulic driven
fan. In case the radiator is clogged, rotate the hydraulic
driven fan in reverse direction to blow out the clogged
dust. It is recommended to carry out the fan reverse
rotation regularly to prevent the cooling system from
clogging.
OFF
When fan reverse rotation switch (1) is set to OFF
position, the fan turns in normal direction.
AUTO
When fan reverse rotation switch (1) is set to AUTO
position, the fan rotates in the normal direction for 10
minutes for the first time. Then, the fan automatically
reverses rotation and again return to the normal
direction. (Normal rotation Reverse rotation Normal
rotation )
After that it keeps normal rotation for 30 minutes. The
reverse rotation time is 60 seconds (1 minute). (90
seconds (1.5 minutes) at low temperature)
In case abnormal situation occurs such as engine coolant
overheating or high refrigerant pressure of the air
conditioner, the duration time of reverse rotation may be
shortened to protect devices from damage.
f
NOTE: After depressing the AUTO side of this switch,
the fan auto-reversing function remains activated as the
switch position is kept being depressed until it is manually
returned to OFF or ON position.
OPERATOR'S STATION
1-106
1
115MNEC-07-01
1
ON
OFF (Neutral)
AUTO
MNEC-01-019
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Troubleshooting
