Gaspardo DAMA, Использование и обслуживание

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USE AND MAINTENANCE
ENGLISH
74
-
cod. G19502891
4.14.2 TRIAL SOWING GEARBOX TABLE
This Table ( Tabe 5 ) indicates the number of turns that the seeder’s
gearbox must make in order to perform a trial sowing when the
machine is stationary.
This turn value depends on the model of the seeder and its work
width.
In the case of working widths that differ from those indicated in the
table, it is possible to calculate the n° of gear revolutions.
For example: there is a working width of 2.80 m .
For reference, use the values, n° of gearbox turns, of the nearest
working width which in this case is, according to the table, 3.00
m with values:
n° of gear revolutions= 69.
N° of gear revolutions width of 2.80 m:
69 x 3,00= 74 gear revolutions;
2,80
4.14.3 EASY METHOD FOR DETERMINING THE NUMBER OF
SOWING TEST
The number of gearbox turn given in the table to be performed
for the stationary sowing test have been calculated on the basis
of ideal conditions. In actual working situations other factors
can cause signi cant variations between the values given in
the table and actual sowing results. The most common of these
are: loss of drive wheel adherence caused by moisture and/or
terrain conditions, fertilizers or other products mixed in with the
seed that reduce its ow rate, variations in seed weight, etc.
To obtain the actual number of gear rotations (for 1/100 ha), pro-
ceed as follows:
for a seeder 3,00 m wide. When large quantities are to be distributed
per hectare (e.g. wheat, barley, peas, etc.) set the planting unit as
in
Table 6 and ll the hopper to half its normal load.
Cover a distance of 33,3 m, counting:
a) the number of rotations made by the drive wheel and multiply
by 1.97 (wheel/gear transmission ratio) to obtain the number
of gear rotations to perform for the stationary test.
Ex.: 17 wheel rotations counted x 1.97 = 33.5 gearbox turns.
b) counting directly the number of gearbox turns from the protru-
ding shaft-end into which the sowing test crank is inserted.
IMPORTANT : The length of the test run will vary depending on the
working width, such that the product of the width (in m) ´ test run (in
m) is always equal to a surface area of 100 m
2
(1/100 of a hectare).
Example: PEAS
- Completely open the blades, position “ 2 ”;
- Use the large distribution wheel;
- Position the feeler pin lever in position “
5 ” on the gauge;
- Disengage the stirring shaft in the hopper.
4.14.4 ADJUSTMENT TABLE OF THE SEEDER
Table 6
Table 5
1
2
0
9
A
B
0
1
2
2 0 1 1 1 0 0 4 3 1 4
1/40 ha 1/100 ha
DAMA 250
Larghezza di lavoro - Working width
Arbeitsbreite - Largeur de Travail
Ancho trabajo
Giri Cambio - Gears Turns - Getreibe Umdr.
Tourns boite - Giros cambio
32 83
DAMA 300 69 27
DAMA 350 59 23
DAMA 400 52 20