Sowing Machine AMBER 900/3
27
10.2.7 ADJUSTING AND SETTING OF SOWING MARKERS.
The sowing marker must be set in such a way that the gaps between sowing paths
during the following sowing are equivalent of row spacing. (
Figure 8
). Rowing path
S
s
is defined as the distance between the outer/two extreme/ coulters. The distance
is equal to the working sowing width reduced by the width of one row spacing.
The extension of the left and right
marker is
calculated according to the following formula:
d
t
S
Z
s
+
−
=
2
where:
Z
- extension of the left or right sowing
marker measured from the trail of the outer
coulter to the sowing marker disc.
S
s
- distance between the outer coulters –
the width of sowing path (measured in
centimeters),
S
r
- working width of the sowing machine (in
centimeters),
t
- the tread of the front wheels measured
from the centre of one wheel to the
centre of the other at their base ( in
centimeters),
d
- the width of row spacing (in
centimeters).
After the sowing markers are properly adjusted
to the required width, the bolts fixing the
marker spring /A Figure 12b/ must be tightened.
Example:
The sowing must be performed with the user of 24 coulters with the row spacing of
d=12,5
cm.
The working width in case of such row spacing and the number of is as follows:
Sr = 24 * 12,5 = 300 cm
Exemplary tread of the front wheels of a tractor is
t=150
cm.
Solution:
The width of a sowing path is as follows:
Figure 18 Diagram of pulling the
sowing machine according to the
sowing markers
27
