Blower Drive; Power Take-Off Rpm; Oleo-Dynamic Blower Drive; Dependent System - GASPARDO PRIMAVERA Empleo Y Mantenimiento

ENGLISH

3.6 BLOWER DRIVE

3.6.1 POWER TAKE-OFF RPM

The blower pump is enabled by the tractor power take-off. It is
important that the rpm indicated are respected. If the minimum
rpm is not reached the machine could lose distribution precision
and where there are large quantities of seeds, the granulate
pipes could get clogged.
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.
Adjust the tensioning with the knob (1, Fig. 32).
Observe the number of power take-off revolutions shown.
Driving a vehicle with a 540 rpm propulsion, with a power take-
off of 1000 rpm and an engine rpm correspondingly low is not
permitted. Danger of blower pump breakage. During
distribution do not let the power take-off rpm drop too low.

3.6.2 OLEO-DYNAMIC BLOWER DRIVE

Safety
The equipment is suitable only for the use indicated. Any use
other than that described in these instructions can cause
damage to the machine and constitute a serious danger to the
user.
Regular operation depends on the correct use and adequate
maintenance of the equipment. It is advisable therefore to observe
scrupulously what is described in order to prevent any
inconveniences that could prejudicate proper operation and
duration. It is just as important to keep to what is described in
this booklet since the Manufacturer declines all responsibility
due to negligence and non-observance of these rules.
At any rate the Manufacturer is available to assure immediate
and accurate technical assistance and all that may be necessary
for the improved operation and better performance of the
equipment.
The oleo-dynamic blower drive may be used, maintained and
repaired only by personnel with complete knowledge of the
apparatus in question and of the relative dangers. Check the
correct connection of the quick-couplings; failure to do so could
result in damage to the system. Disconnect the oleo-dynamic
unions only after having first depressurized them.
High-pressure oil leaks can cause serious skin injuries with the
risk of infection. In such cases seek immediate medical attention.
It follows that oleo-dynamic components should not under any
circumstances be installed in the tractor cabin.
All the component parts of the pressurised system should be
carefully installed in order to avoid damage during the use of the
machinery.
56
ATTENTION
ATTENTION
USE AND MAINTENANCE
fig. 32
1

DEPENDENT SYSTEM

Characteristics of the tractor necessary for installation:
- A sufficient number of distributors on the tractor: the supply
to the blower drive has maximum priority.
- Tractor oil flow rate: the oil required for engaging the blower is
approx. 32 litres/minute with a max. pressure of 150 bar.
- For correct blower operation and sufficient oil cooling we
recommend supplying the circuit with an amount of oil equal to
55÷60 litres.
- Oil cooling: if the tractor is not equipped with a large enough
cooling system, it will be necessary:
a) to install one;
b) increase the oil reserve by means of a supplementary tank
(ratio: 1:2 between the pump delivery/minute and the oil reserve).
- The return circuit must be low pressure (max 10 bar).
- Do not connect the return circuit to the auxiliary distributor.
- Tractors: check the tractor according to the above observations.
If necessary have any modifications carried out by the tractor
dealer.
- Oil supply: follow the data of the table in Fig 33. The hydraulic
pipes must be connected correctly to the tractor distributors
following the instructions on each pipe.
A - quick-coupling
side;
B- three-way regulator;
C- manometer;
D- engine;
E- safety valve;
F- quick-coupling scavenge
side;
G- cooler (optional).
Tractor side
fig. 33
g
pressure
E
C
B
A
cod. G19503100
D
G
F