Layout and function
38
GreenDrill BAH0054-9 11.17
4.3.2 Hydraulic blower fan drive
If your implement is equipped with the hydraulic blower fan drive, the control terminal shows whether
the blower fan is switched on or off. When the blower fan is switched on, the red control lamp above
the
button is illuminated. The button has no function with the hydraulic blower fan drive.
The blower fan speed is not displayed.
The tractor control unit serves to switch the
blower fan on and off. The blower fan speed is
adjusted using the flow control valve of the
tractor.
If the tractor does not have a flow control valve,
the blower fan speed is adjusted using the con-
trol valve (1) of the GreenDrill.
To ensure that the seeding shaft can only be
switched on when the blower fan is running, the
switch position of the blower fan is requested by
a pressure sensor (1).
This ensures that the seeding shaft cannot be
switched on when the blower fan is not running
and prevents blockage in the seed hose lines.
The following maximum values must not be exceeded:
Operating pressure
of the hydraulic system:
max. 210 bar
Blower fan hydraulic fluid tem-
perature:
max. 80°C
Oil flow rate
(tractor pump output):
max. 80 l/min.
Higher oil flow rates can exceed the maximum
permissible blower fan hydraulic fluid tempera-
ture.
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