Gaspardo DP, Use And Maintenance

Page: 27 / 62

USE AND MAINTENANCE
27
ENGLISH
cod. 19501170
g
To assure the correct operating position of the machine, check:
a) the arm length of the third point for a carried machine (1,
fig. 14);
b) the position of the coupling of the first and second point for
a towed machine (fig. 15).
Finally, it is recommended to further load the springs of the elements
which operate behind the tractor wheels and to stretch the chains
or the side tie rods of the three point attachment well, to give
stability to the machine.
WHEN AND HOW TO BALLAST THE FRAME
When the ground is very hard and the position springs are very
compressed there is the risk that the total strain of the springs,
raise the frame up to the point that the drilling units arms get to
the inferior end of the run. This situation makes it impossible for
the machine to follow the depression in the ground because the
drilling units no longer have downward amplitude. In this case:
a) reduce the compression of the springs.
b) or ballast the frame with 1 or 2 crop ends square rod to inert
and fix in the frame.
3.3.2 PRESS WHEEL ADJUSTMENT
The purpose of the press wheel, thanks to its spring load system is
toclose the seeding furrow right after the seed has been placed
this operation may vary according to different tactor such as:
-
type of soil (light, compacted, huthd or dry)
- amount and rind of residues on the ground
- seeding speed, etc.
therefore the down pressure must be registered carefully. The action
of the press wheel may be adjusted as follows (fig. 16):
A) modifying the
tension of the spring (1).
B) modifying the space between the wheel and the seeding
furrow by changing the position of the spacer (2).
WARNING
If necessary, adjust the backlash of the rear seed covering
wheel periodically by carrying out the following operations
(fig. 16):
C) loosen the lock nuts (3);
D) carefully tighten the screws (4) by checking the
backlash of the rear seed covering wheel;
E) tighten the previously loosened lock nuts (3).
The drilling-maschine is equipped with a seed-cover harrow made
of a load bearing bar, on which there are more parallely hinged
tooth-holder segments.
The teeth are elastic with a bent profile to allow the stubles to flow
free in the earth. The end parts of the teeth are folded at apposite
angles to help cover the furrow with the earth that is raised. The
inclination of the bar can be slightly varied according to the condition
of the soil and the quantity of stubbles, loosening the brackets of
the main bar (fig. 17).
WARNING
Lower the seed-covering harrow to the work position
when the machine is hoisted.
When transporting on public roads, fold the harrow into
its transport position and lock it in place using the safety
pin; with the DPI seeder, fold the side seed cover harrows
so that they fall within the overall dimensions of the
seeder.
3.3.3 ROW MARKER DISK ADJUSTMENT
The row marker is a machine that traces a reference line parallel
to the tracks of the tractor on the ground.Once the tractor has
reached the end of the forward track and reversed, it then
proceeds by moving with the central part of the tractor on the
reference line (fig. 18). The row marker will continue to trace a
parallel reference line during its progress down each row. The
inversion of the row-marker arms is moved by means of a control
on the seeder.
ATTENTION
When moving on the road, block the row-marker,vertical
position, arms with the dowels and the snap split pins,
and turn the row-marker disks inwards within the external
dimensions of the machine.
fig. 17
AD BC
AC
BD
B
D
A
C
Arm DX
Arm SX fig. 18
1
3
4
3
2
fig. 16