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4.6.3 SEEDER EXCLUSION
Switch off the tractor and remove the key;
Lift the single seeder from the ground in the following way:
- Hook the spring the position 1 (Fig. 15),
- Lift the seeder until it hooks on,
- Hook the spring the position 2 (Fig. 15);
Disconnect the seeder drive shaft (Fig. 29) as follows:
- Push the coupling sleeve and keep it pressed(1, Fig. 29) in the
direction shown by the arrow, press forward and at the same time
rotate the ring nut (2, Fig. 29) until it is free of the iron pin;
- Pull the sleeve back at the end of its run (1, Fig. 29).
- To render the drive operative again, push the sleeve forward and
lock the ring nut again against the iron pin.
4.6.4 PLANTING UNIT TRANSMISSION
Each box has a safety pin (3, Fig. 30). When the rotation of the
seed disc comes under strain or stops due to the entering of foreign
bodies with the seeds (paper, string etc.), empty the seeds from
the container, check and clean the distributor, check the disc pins
and replace the safety pin.
Each transmission shaft has a torque limiter with a sound alarm (5,
Fig. 30) that, when the pin breaks (3, Fig. 30), signals the anomaly
or breakdown that has occurred in the distributor. If this happens,
stop at once and remedy the situation; remove the broken pin and
replace it (use the pin punch supplied).
IMPORTANT! Do not use metal pins.
CAUTION! Do not completely tighten the screws that hold the box
(4, Fig. 30); oscillation is expected.
4.7 VACUUM PUMP
The aspirator (Fig. 31) 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. 31)
- Loosen the nut (2, Fig. 31)
- If worn, replace the belt (4, Fig. 31).
- Tension the belt by tightening the screws (3, Fig. 31).
- Tighten the bolts loosened before and close the casing.
Vacuometer
The vacuometer (5, Fig. 31) 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 32.
cod. G19501383
WARNING
–55 ÷ –60 mbar;
–40 ÷ –45 mbar.
USE AND MAINTENANCE
fi g. 29
fi g. 31
5
fi g. 32
1
3
4
5
Corretto-Correct-Korrector
-50
-60
-40
Mbar
-70
-30
-80
-20
-90
-10
-100
0
2
1
- 4 0
- 6 0
- 2 0
- 8 0
0
m b a r
- 1 0 0
ENGLISH
2
fi g. 30
3
4
EN - 65
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