Please note:
•
The
air flow should not be too high, so that
no seed or fertiliser will be blown out of the
seed furrow.
•
However, the air flow must also not be too
weak, so that no seed or fertiliser will remain in
the hoses and cause blockage. The fan speed
should therefore be set as high as possible.
•
To control the speed, the control unit in the
tractor must be equipped with a flow control
valve.
Basic setting: 3 500 - 4 500 rpm
•
Max. speed: 5000 rpm
¾
Reduce the fan speed when sowing fine seed.
NOTE
¾
Fan setting, transport and placement of fertil-
iser or seed must be checked on all coulters
when starting sowing and also at regular
intervals when working on large areas.
Connecting the hydraulics
CAUTION
Damages to the fan motor
¾
Connect the supply and return flow lines correctly
(1).
¾
Connect the leak oil line to the leak oil port of
the tractor (2). Note the return flow pressure
of max. 5 bar in the leak oil line!
1
2
Checks and maintenance
WARNING
Risk of injury from running fan
¾
Dismantle the protective grille on the fan only
when the machine is stopped!
¾
Do not expose yourself to the air from the fan
when the pneumatic hoses are disassembled.
NOTE
¾
Fan wing and protective grid must be regularly
checked for dirt deposits and cleaned.
Deposits on the protective grid restrict the air
flow and thus lead to blockage in the seed
pipes.
Deposits on the fan impeller cause unbalance.
The bearing will thereby be overloaded and
can be damaged.
Fan with protective grille
34
35
