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Structure and function
36
GreenDrill BAH0108-0 03.20
4.4
Fan
The fan generates a flow of air that conveys the metered material to the baffle plates. The air current
becomes stronger with increasing fan speed.
A strong flow of air is required for optimal distribution of the seed. If the air flow is too strong, the seed
can be damaged on the baffle plates. If the air flow is too weak, there may be blockage in the seed
tube hoses.
The fan is driven either by an electric motor or a hydraulic motor.
Read the preliminary fan speed from the table.
The values in the table are reference values
and depend on the
seed (grain size and weight)
spread rate
working width
working speed.
Working width
Seeding with
coarse seed
metering
wheels
fine seed
metering
wheels
3.0 m
3000-3100
1400-2900
6.0 m
3400-3500
1550-3300
12.0 m
4200-4300
1650-4000
Fan speed [rpm]
Set the fan speed to the value from the table and check the spread pattern on the field. Optimise
the spread pattern by adjusting the fan speed.
The fan speed does not change when the working speed changes. To ensure that the spread
pattern does not change during operation, constantly maintain the selected fan speed.
4.4.1
Electric fan drive
If your implement is equipped with the electric fan drive, the control terminal is used to
switch the electric fan drive on and off,
see section "Control elements", page 52 and
adjust the fan speed,
see section "Adjusting the fan speed", page 68.
Содержание GreenDrill GD200-E
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