Distribution Of Fi Ne Seeds; Adjustment Fl Ow Air - Gaspardo PRIMAVERA 400 Manuel D'emploi Et Entretien

3.5.2 DISTRIBUTION OF FINE SEEDS
Distribution of quantities lower than 3 kg/ha.
During the dosing test the number of gearbox revolutions is low
because the quantity of product to be distributed is small. This can
result in irregular distribution of the product. If the operator notes
this, he should follow the instructions below.
Considering that every section (A, Fig. 28) of the dosing roller di-
stributes 20% of the product contained in roller itself, the number of
operating sections can be increase and the gearbox rotation speed
to reduce to obtain more homogeneous distribution.
First, take the dosing roller off the machine. Then, unscrew the
knob (B, Fig. 28) using the supplied wrench and remove the lock
nut (C). Extract the section(s) to be activated and put them back in
their positions (1-2-3-4-5, Fig. 28) turning them by 180°.
When re-assembling the sections, make sure that during operation
the dosing grooves of the active sections are staggered from one
another (D, Fig. 28). This will give continuity to distribution.
Re-position the lock nut, tighten the knob using the supplied wrench
and assemble the roller back on the machine.
Block the cleaning element in the operating position and make sure
that the springs hook the previously excluded sections (E, Fig. 28)
preventing their rotation and consequently distribution.
Perform the dosing test following the instructions supplied in
paragraph 3.5.4 and make sure that the real number of operating
sections is coherent with the 1 section roller.
IMPORTANT!
The quantity values in the table refer to a dosing roller where
1, 3 and 5 sections are actually operating (1/5 - 3/5 - 5/5).
When the same quantity is to be distributed, to reduce the
opening of the gearbox of every activated section by 20%.
To start distribution again using some of the sections or all of them
disassemble the roller and its parts and put them back in their
original position.
1
cod. G19503101
USE AND MAINTENANCE
A
4
3
2

3.5.3 ADJUSTMENT FLOW AIR
The air capacity can and must be changed according to the spe-
cifi c weight of the seeds by rotating the butterfl y valve supplied
(Abb. 27):
A) normal seeds;
Z) fi ne seeds.
The distribution table supplied with this planting unit shows the
A and Z references corresponding to the seed type used.
C
D
5
ENGLISH
Z
A
B
fi g. 27
fi g. 28
E
53