Depth setting
The drilling depth is determined by the depth
setting and the coulter pressure on the coulters.
The drilling depth is adjusted mechanically via
two racks.
1
2
¾
Secure the tractor against rolling away, secure
the control units.
¾
Lower the seed bar until it rests on the ground.
If necessary, vary the height of the seed bar
slightly to facilitate adjustment.
¾
Remove the bolts on both sides (1).
¾
Adjust the height of the seed bar on the racks
using the box spanner (size 24) supplied (2).
Adjust both racks to the same height. Adjust
the height so that the bolts can be inserted.
¾
Insert the bolts at the rows of holes and secure
them with cotter pins.
NOTE
¾
The settings of drilling depth and coulter
pressure affect each other. Check the coulter
pressure in the field after each change of the
placement depth.
¾
Adapt the adjustment to the soil conditions,
the working speed, harvest residues and the
loosening work of the coulter discs.
It can only be determined in the field in work
-
ing position.
¾
With each change, the drilling depth and the
effect of the press rollers on consolidation and
depth guidance must be checked.
¾
Check the drilling depth when starting work
and regularly during use.
Coulter pressure adjustment
When lowering the machine the coulters are
pressed into the soil, until the press rollers take
over the depth guidance.
The rubbers on the guide are thereby tensioned
and the required coulter pressure is generated.
The harder the soil and the deeper the seed is
to be placed, the higher the required pressure.
Adjust the coulter pressure so that the set drilling
depth is reached and the coulters run quietly
during field work.
Excessive coulter pressure will adversely affect
the placement accuracy of the seed and increas-
es the wear on the coulters.
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