Vaderstad Rapid RDA 400S, Instructions Manual

Page: 57 / 110

RDA 400-450 S
Ver.3 29.06.2007 57
2.24 Adjusting the following harrow
Figure 2.65
1 Select a suitable work angle from hole series B.
2 The work pressure of the following harrow is adjusted using the adjusting screw (A). Depend-
ing on the work pressure set on the following harrow, the cotter (C) should be positioned be-
tween the trailing edge and centre of the oblong groove (D).
Adjust the following harrow to remain in the work position when turning on the headland in
the low-lift position. This will cancel out the tracks of the drill when turning.
Figure 2.66
3 Check that the following harrow tines trail in the between the wheel tracks and in the actual
wheel tracks, respectively. This indicates that the following harrow tines travel in the furrow
centre. When the following harrow tines travel between the furrows, high pressure can be ap-
plied on the following harrow without disrupting the seed.
In this fashion, a vaporization lay-
er can be harrowed while sowing
.
NOTE!
Do not reverse the tractor unless the drill has been fully raised and the following harrow
has sufficient clearance height.
NOTE!
If the machine has been set to the maximum drilling depth and the following harrow is sub-
ject to a high load, the clearance in the transport position may be limited.
B
A
C
D