Vacuum Pump - Gaspardo SP SPRINT Manuel D'emploi Et Entretien

EXPELLER DEEDS
The seed expeller is to be used only with sugar beet seed.
Remove the expeller with large seed such as corn, sunfl ower,
soybean, peanut, etc.
Loosen the screws (8, Fig. 18) and remove the expeller (9).
ASSEMBLY
Position the expeller (9) as shown in Figure 18.
keeping the expeller pressed against the edge, obtained in the
relative seat (10, Fig. 18), block it by the screw (8) kit. The screw is
to be mounted only as shown in the picture. Do not interpose any
thikness between the expeller and its seat.
Make sure the expeller is fl at against the seed disk but that it does
not come in contact with the disk. Replace the expeller when worn.
SELECTOR ADJUSTMENT
A cursor is controlled (11, Fig.19) by moving the indicator (12,
Fig. 19); this slightly touches the disk near the holes, causing the
excess seeds to fall.
The selector is adjusted at each change of seed and disk, towards
the lower numbers for small seeds and vice versa for big seeds.
IMPORTANT: The selector does not adjust the air fl ow in the
distributor.
ANTI-OVERFLOW PLATE ADJUSTMENT
The anti-overfl ow plate (13, Fig. 20) can be adjusted to 3 positions
and defi nes the width of the seed inlet gap (14, Fig. 20), so that
these cannot fl ow out of the distributor due to excessive feeding.
Adjustment is par-ticularly needed when the ground slopes steeply
or when working with small seeds.
In this case, it might be necessary to replace the standard plate
with a special one to be used exclusively with small seeds.
Spare part order code: G22270133.

4.5.2 VACUUM PUMP

The aspirator (Fig. 21) creates a vacuum inside the distributors,
so that the seeds are aspirated onto the holes in the plate. The
tensioning and good condition of the belt are therefore of vital
importance to ensure the good for the good operation of the aspi-
rator and, hence, the success of the sowing. The belt is correctly
tensioned when it does not yield under the pressure of a hand.
Make sure that the universal joint is disconnected from the
power take-off before carrying out the following operations:
Belt checking procedure:
- Remove the protective housing
- Loosen the 4 screws (1, Fig. 21)
- Loosen the nut (2, Fig. 21)
- If worn, replace the belt (4, Fig. 21).
- Tension the belt by tightening the screws (3, Fig. 21).
- Tighten the bolts loosened before and close the casing.
Vacuometer
The vacuometer (5, Fig. 21) a the vacuum measuring device. The
one supplied shows aspiration values ranging from -0 to -100 mbar.
The average approximate aspiration values are:
for large seeds:
for small seeds:
When necessary, remove the glass of the vacuometer to carry
out a cleaning operation with a gentle jet of air or a cloth.
If it is necessary to reset the indicator of the vacuum gauge,
remove the glass cover and use a screwdriver to take out the
screw as shown in Figure 21 (6).
cod. G19501383
WARNING
–55 ÷ –60 mbar;
–40 ÷ –45 mbar.
USE AND MAINTENANCE
8
9
fi g. 18
11
12
fi g. 21
- 4 0
- 6 0
- 8 0
m b a r
- 1 0 0
6

10
12
fi g. 19
13
5
-50
-60 -40
Mbar
-70
-30
-80 -20
-90
-10
-100
0
- 2 0
0
1
ENGLISH
11
14
fi g. 20
3
2
4
EN - 59