Layout and function
GreenDrill BAH0054-9 11.17
37
4.3 Blower fan
The blower fan generates a flow of air that conveys the metered material to the baffle plates. The air
current becomes stronger with increasing blower fan speed.
A strong air current 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 blower fan is driven either by an electric motor or a hydraulic motor.
4.3.1 Electric blower fan drive
If your implement is equipped with the electric blower fan drive, the control terminal is used to
switch the electric blower fan drive on an off, and
adjust the blower fan speed
with control terminal 3.2, see section "Adjusting the blower fan speed", page 55
with control terminal 5.2, see section "Adjusting the blower fan speed", page 80.
Read the preliminary blower 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
Blower fan speed [rpm]
Set the blower fan speed to the value from the table and check the spread pattern on the field. Op-
timise the spread pattern by adjusting the blower fan speed.
The blower 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 blower fan
speed.
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