KL 2500/3000
29
Figure 15. Main adjustment screw
The sowing depth can also be adjusted coulter-specifically. To do this, move the
weighting spring extension chain on the retaining hook on the front of the machine.
Adjusting the chain, e.g. 1-2 loops tighter, is usually required to compensate for tractor
tire tracks. The coulter springs of TUME coulters are designed in such a way that the
drill height has no significant impact on coulter weighting. Therefore, any change in
placement depth will not significantly impact the weighting of the coulters.
