Roller for ne seeds
The rollers for ne seeds consist of cell discs,
spacers and drive shaft.
In order to avoid malfunction when sowing ne
seed, the cell rollers are completely pre-assem-
bled in the factory.
The rollers can be assembled with one or two
cell discs.
The use of two cell discs on the roller doubles
the delivery rate.
Cell discs are available with displacements of
3.5 cm³, 5 cm³, 10 cm³ and 25 cm³.
During sowing only the cell discs in the roller will
rotate, the spacers are stopped from rotating by
stops on the housing
On machines with double Venturi area
and 2 seed boxes you may only use
rotors with 2 cell discs.
Otherwise the seed is unevenly distrib-
uted to the two halves.
Removing or installing a ne seed rotor
The anti-rotation locks must be turned towards
the recess in the housing in order to remove and
assemble the rollers.
Assembly of roller for ne seeds
Adjusting the sealing lip
A defective sealing lip or an incorrectly
assembled supporting plate causes
metering errors during sowing.
¾ The sealing lip must not be torn or damage
- replace the sealing lip at least 1 × per year.
¾ Insert the side cover with the sealing lip into
the metering housing. The sealing lip must
have full contact with the rotor and should be
able to generate approx. 1 mm pre-tension.
approx. 1 mm
Sealing lip
The retaining plate for the sealing lip is
asymmetrically divided.
With all normal and ne seeds the wider side
must face towards the rotor.
In case of disturbances with coarse seeds such
as maize, beans etc. both the retaaining plate and
the sealing lip can be replaced by a wider design.
¾ Take out the rotor.
¾ Insert the side cover with the new sealing lip,
tighten the sealing lip only to such an extent,
that it can still be moved in axial direction.
¾ Move the lip, so that it projects approx. 1 mm
into the roller recess.
¾ Take o the side cover, do not move the lip
any more and tighten it.
¾ Assemble the side cover, check the setting
once again and reassemble rotor.
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