Row Marker - GASPARDO MTE Empleo Y Mantenimiento

ENGLISH

3.8 ROW MARKER

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 completed its run and it has turned around,
follow the reference row with one of the front wheels (L1, Fig. 36)
or with the centre of the tractor (L2, Fig. 36) according to the row
marker employed,
where:
L = the distance between the outer most unit and the row mar-
ker;
D = the distance between the rows;
N = the number of units operating;
C = the tractorís front wheelbase.
Each time it passes, the seeder will mark a reference line on the
side opposite to the previous passage. Row-marker arm inversion
is activated by the tractor's hydraulic distributor control.
The hydraulic row marker device has a valve that alternately ope-
rates the two arms, so that just one hydraulic tractor distributor is
present.
When the system is not in use protect the quick couplings with
the hoods provided and house the hydraulic pipes in the support
provided for the purpose.
System regulation
The hydraulic systems provided come equipped with one-way fl ow
regulators (Fig. 37) which allow for the regulation of the quantity
of oil during opening or closing, depending on how the regulators
have been installed.
(1) Regulator for closing the row marker;
(2) Regulator for opening the row marker.
- Flow from A to B, free;
- Flow from B to A, choked (regulated).
Calibration of the fl ow regulators:
- Slacken the lock nut (3, Fig. 37).
- Fully close the oil fl ow (CLOSED).
- Using the hydraulic distributor of the tractor, operate the system
and open the oil fl ow by turning the knob (4, Fig. 37).
- When fi nished making the adjustment, tighten the lock nut
again.
- Carry out the calibration on all four regulators.
Make sure that the result of this adjustment does not cause
the rising or descent speed to damage the structure itself.
For normal soils the correct working position of the disc is that
shown in Fig. 38 ref. (5); for strong soils turn it over as shown in
ref. (6) Fig. 38.
During travel by road, lock the row marker arms in a vertical
position with the safety bolts (9, Fig. 41) and turn the discs
to come within the machine's overall dimensions (10, Fig. 41)
locking them with the bolts supplied.
Before travelling on the road, with row marker arm for track
at the tractor centre, rotate the upper arm (11) as shown in
fi gure 41.
62
WARNING
WARNING
USE AND MAINTENANCE
fi g. 36
1
CLOSED
OPEN
2
fi g. 37
Avanzamento
Advancement
Avancement
fi g. 38

C
D
L1
L2 D D D
3
4
B
OPEN A
CLOSED
B
5
6
cod. G19503270