5.3 Position of the throttle valve of the
fan
The air flow speed can be reduced by means of the fan’s
throttle valve. Thus small-sized, light seeds can be kept from
being blown out of the furrow made by the coulter.
- Set the handle of the throtle valve (fig. 20) in position N for
the application of normal seeds; position F is meant for
seeding fine seeds.
5.4
Adjustment of sowing depth
The pressure of all coulters can be adjusted centrally and
evenly by means of the spindle (fig. 21).
- Turn the spindle to the right for an increase of sowing depth
and to the left if a shallower depth is required.
The pressure of each individual coulter can be adjusted by
means of the chain attached to the draw spring (fig. 22).
- Use another shackle to attach the chain to the coulter. A
smaller length of chain increases the sowing depth.
When operating on loose soil, with a small interrow distance
and at a high forward speed we recommend a lighter
adjustment of the coulter pressure of the foremost coulter
row. This will keep the seed rows from being covered with
soil by the following coulter rows.
- Increase the chain length of all coulters of the foremost row
by 1 shackle.
47
20
21
22
N
F
To Next Page
Loading...
