18-pass sequence
Considering as an example a seed drill width equal to 4.5 m, the 18-pass sequence performes 18 passages in the following way:
Passages 3 and 16: left row shut-off if you start from the left side of the field (Fig. 38); right row shut-off if you start from
the right side of the field (Fig. 39);
Passages 7 and 12: right row shut-off if you start from the left side of the field (Fig. 36); left row shut-off if you start from
the right side of the field (Fig. 37);
All other passages do not shut-off any row
Table 3 sums up the shut-offs performed in the special sequence.
Passages
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Code G19503490
USE AND MAINTENANCE
Fig. 38
Starting from the left
10-pass
14-pass
18-pass
R
R
L
L
L
R
L
R
Fig. 39
Starting from the right
10-pass
L
L
R
R
R
L
R
L
Table 3
14-pass
18-pass
L
R
R
L
R
L
L
R
EN
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