2
¾
To open the hopper, release the levers (2)
and fold up the hopper lid.
¾
To close the hopper, fold down the lid and
close the levers (2).
¾
Check hopper for leaks after closing.
Pressure hopper
The hopper is designed as pressurized hopper
and must always be closed and tightly sealed
during placement of seed.
Leaks with a loss of air will cause sowing faults.
The placing quantity will drop, possibly all the
way down to zero.
¾
Check the hoppers for leaktightness after
each opening and closing and after extended
idle times while the fan is running.
Switch on the fan and feel with your hands
around the lid or listen for escaping air.
¾
In case of leaks replace the seals or readjust
hinges and locks.
¾
Open the hoppers only after the internal pres-
sure in the hopper has been relieved.
Filling the hopper
The front hopper must be connected to the
tractor to fill it.
¾
Lower the hopper to the ground for filling.
¾
Open the hopper.
¾
Fill the hopper using a filling auger, front load
-
er or Bigbag. Pay attention to the division in
the hopper, see
Technical Data
.
¾
Close the hopper.
Fan
The hydraulic fan is directly driven by the tractor
hydraulics.
1
2
3
4
5 6 7
1 Pressure gauge leak oil line return pressure
2 Fan
3 Axial piston motor 5 cm³ (or 10 cm³ with double fall
sluice)
4 Check valve
5 Pressureless return
6 Return (connection
A
)
7 Supply (connection
B
)
The generated air flow transports fertiliser or
seed from the fall sluice to the coulters.
The required air volume depends on the
•
type and quantity of the fertiliser or seed used
•
working width
•
drilling speed
•
implement combination.
A correct fan speed can therefore not be speci-
fied and must be determined by tests in the field.
32
33