Fig. 14. Changer pin in middle hole.
c.
Adjusting the marker arms
4.3.1.
Middle markers
It is very simple to adjust the length of the middle markers. The distance of the marker disc from
the middle line of the tractor should be the working width of themachine. See fig. 16.
Should the adjustment be incorrect the screws in the arm (fig. 15) are opened and then the length of
the arm can be regulated. At the same time you can adjust the working angle of the disc suitable for
the circumstances. The disc is adjusted to spread out in driving direction.
Tighten the hexagon screws (fig. 15) when the disc is properly adjusted.
Fig. 15. Regulating screws in marker arm.
4.3.2.
Adjusting the wheel track markers
The adjustment of the wheel markers depends on the tractor wheel base. See fig. 17. If the drill is
used in many tractors the marker adjustment must always be adjusted to correspond to the wheel
base of each tractor. The easiest way to carry out the adjustment is to do it when the drill is
mounted to the tractor.
