GASPARDO PRIMAVERA Empleo Y Mantenimiento página 57

INDEPENDENT SYSTEM
When the characteristics of the tractor are such that they cannot
guarantee the correct working of the blower, it is necessary to install
a self-contained oleo-dynamic system.
Installation characteristics
- Oil supply: follow the data in the table in Fig. 35.
Operation description
The multiplier joined to the tractor's power take-off, works a pump
that takes oil from the outside tank to the three-way regulator. Here,
indicated on the manometer, the pressure required for the motor
to work the blower is adjusted (Table 4). Furthermore, the system
is equipped with a safety valve that allows the blower to continue
to rotate from inertia without suffering breakage or damage, if the
circulation were to stop suddenly.
Starting up
With the engine off and the tractor immobilized, connect correctly
the quick-couplings. Clean and grease the tractor power take-off.
(A, Fig. 36). Connect the multiplier (B, Fig. 36) to the machinery
power take-off as shown in Figure 36. Make sure it is correctly
coupled, block the rotation of the multiplier with the chains supplied
(C, Fig. 36). Check the multiplier oil level and top up if neces-
sary (ESSO SAE W80-90). Start the tractor and run the system
at idle for a few minutes, bringing constant pressure to the entire
circuit in order to avoid instability of the blower. Bring the blower
up to the number of revolutions that corresponds to the working
conditions (Table 4).
ATTENTION
When it is not intended to distribute product, but rather to use
only the equipment to which it is applied, disconnect the pump
and the multiplier from the rear power take-off and replace it
in the special attachment.
BLOWER PUMP CONTROL
Seed drills are delivered with pressure based on the machine width,
as according to (Table 4).
mod. PRIMAVERA
Distributed Product
Normal seed
Small seed
If you wish to increase the number of revolutions of the fan for
distributing heavier seeds, carefully proceed as follows (Fig. 37):
a) Operate the blower.
- Dependent system: start the distributor of the tractor that the
system is connected to.
- Independent system: start the power take-off of the tractor at
the number of revs envisaged for the system.
b) loosen the handwheel (1, Fig. 37);
c) rotate the handwheel (2, Fig. 37) clockwise or anticlockwise to
reduce or increase pressure and adjust the number of revolu-
tions of the blower accordingly.
d) When the adjustment has been completed, tighten the lock nut
again.
NOTES:
- In the fi rst metres of the work, check that the seeds are being
placed correctly in the furrow. If the seeds are being placed
outside the furrow, reduce the rpm of the fan.
cod. G19503101
USE AND MAINTENANCE
(r.p.m.) Pressure
Min. Max. (bar)
3600 3800
170÷180
2500 2700
90÷100
Table 4

fi g. 36
A
B
2
1
fi g. 37
It is strictly forbidden to touch act on the dowel (3, Fig. 37) for
any reason, as this would unset the system and could lead to
the motor or pump breaking.
Remember furthermore that at the successive start-up of the
system, with cold oil and the position of the regulator untouched,
there will be an initial increase in the blower speed which, once the
right working temperature has been reached, will return to that set.
OIL COOLING
When using a dependent system it is important to check the capacity
of the tractor's oil tank and whether the cooling system is suffi cient. If
necessary have an oil cooler or a larger tank installed on the tractor
by the dealer: the ratio between the volume of oil in the system
and the capacity of the tank should be approximately 1:2.
ATTENTION
- Always keep oils and grease out of reach of children.
- Always read warnings and precautions indicated on the
containers carefully.
- Avoid skin-contact.
- After use wash the equipment thoroughly.
- Treat the used oils and polluting liquids in conformity with
the laws in force.
The Manufacturer declines all responsibility due to negligence
and non-observance of these rules.
ENGLISH
C
GRUPPO
RAPP.
1 :2
COD.
6072.002020
OLIO SAE 90
3
WARNING
MP 10
57