Vacuum Pump - Gaspardo MAGICA 9 Mode D'emploi Et Entretien

SELECTOR ADJUSTMENT
When the indicator (1, Fig. 32) is moved, it commands a cursor (2,
Fig. 32), which slightly touches the plate near the holes, causing
the excess seeds to fall. The selector is adjusted at each seed and
plate change, towards the lower numbers for small seeds (A, Fig.
32) and viceversa for big seeds (B, Fig. 32).
Adjust the selector and control through the transparent grate (Fig.
33) that the plate is only holding one seed per hole;
IMPORTANT: The selector does not adjust the air fl ow in the
distributor.
ANTI-OVERFLOW PLATE ADJUSTMENT
The anti-overfl ow plate (1, Fig. 34) can be adjusted to 3 positions
and defi nes the width of the seed inlet gap (2, Fig. 34), so that
these cannot fl ow out of the distributor due to excessive feeding.
Adjustment is particularly 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.

5.4.2 VACUUM PUMP

The aspirator (Fig. 35) 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 im-
portance to ensure the good for the good operation of the aspirator
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. 35)
- Loosen the nut (2, Fig. 35)
- If worn, replace the belt (4, Fig. 35).
- Tension the belt by tightening the screws (3, Fig. 35).
- Tighten the bolts loosened before and close the casing.
Vacuometer
The vacuometer (5, Fig. 35) 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 35 (6).
cod. G19503301
WARNING
–55 ÷ –60 mbar;
–40 ÷ –45 mbar.
USE AND MAINTENANCE
2
1
fi g. 32
fi g. 33
fi g. 34
fi g. 35
- 6 0
- 8 0
m b a r
- 1 0 0
6
-
A
1
5
-50
-60 -40
Mbar
-70
-30
-80 -20
-90
-10
-100
0
- 4 0
- 2 0
0
1
ENGLISH
2
1
B
2
3
2
4
EN - 63