Gaspardo SD Series, Использование и обслуживание

Страница: 41 / 48

USE AND MAINTENANCE
39
ENGLISH
cod. 19501980
g
3.0.16 ASPIRATOR
The aspirator (Fig. 39) 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
aspirator and, hence, the success of the sowing.
The belt is correctly tensioned when it does not yield
under the pressure of a hand.
Belt checking procedure:
- Remove the protective housing
- Loosen the 4 screws (1 Fig. 39)
- Loosen the nut (2 Fig. 39)
- If worn, replace the belt.
- Tension the belt by tightening the screws (3 Fig. 39).
- Comply with the number of rpm recommended for the power
take-off.
- Tighten the bolts loosened before and close the casing.
Vacuometer
The vacuometer (Fig. 40) a the vacuum measuring device. The
one supplied shows aspiration values ranging from -0 to -100
mbar.
The average approximate aspiration values for large seeds are: -
60 to -70 mbar for small seeds: -40 to -50 mbar.
Comply with the number of rpm recommended for the
power take-off.
3.0.17 PREPARING FOR SEEDING
DANGER
Carefully follow the instructions below and perform the
operations in the order they are listed:
- From the driverís seat of the tractor, raise the seeder;
- Operate the power take-off at 540 rpm;
- Using the gear lever, put the tractor engine into neutral;
- Brake the tractor and if necessary, secure it with wooden
blocks sized according to the size of the wheels;
- Ensure that no-one can approach the tractor driver's seat;
- Check that all the drive shafts are properly engaged.
- Carefully check moving parts, dri-ving parts and seed
distribution.
- Manually turn the seeder gear drive wheel in the direction in
which the machine is moving;
- Adjust the selector and control through the transparent grate
(Fig. 41) that the plate is only holding one seed per hole;
- From the "seed chart" on page 39 the number of seeds
required can be determined in advance.
CAUTION
Remove and overturn the supporting feet (Fig. 42).
- Proceed with seeding: after a few metres check to ensure
that the distributors are sowing one seed at a time.
At the end of seeding, discharge the remaining seeds through
the distribu-tor door (Fig. 43).
fig. 40
-50
-60
-70
-80
-90
-100 0
-10
-20
-30
-40
Mbar
fig. 41
fig. 42
fig. 39
NR -
19
NR -
17
1
2
3
1