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3.8 ROW MARKER
Depending on the seed drill model, two different options of row
marker are provided:
- Mod. 400/450: hydraulically folding row marker with trace on
the tractor wheel (Fig. 39);
- Mod. 500/600: row marker with trace in the centre of the tractor
and hydraulic folding inside the planter's overall dimensions
(Fig. 40).
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 (Fig. 39) or
with the centre of the tractor (Fig. 40) according to the row
marker employed. . Each time it passes, the seeder will mark a
reference line on the side opposite to the previous passage.
The exchange of the row marker arms is actuated by a hydraulic
system with valve supplied with the equipment.
ATTENTION
For road transport lock the row marker arms in a vertical
position with the spring pins provided.
3.8.1 HYDRAULIC SYSTEM
The hydraulic systems provided come equipped with one-way
flow regulators (Fig. 41) which allow for the regulation of the
quantity of oil during opening or closing, depending on how the
regulators have been installed:
- Flow from B to C, free (Fig. 41);
- Flow from C to B, choked (regulated) (Fig. 41).
To regulate, loosen the lock nut (1) and turn the knob (2).
Once this adjustment has been made, re tighten the lock nut.
Make sure that the result of this adjustment does not cause
the rising or descent speed to damage the structure itself.
Never exceed the maximum admissible pressure for the
hydraulic system.
In the 500 and 600 models the hydraulic system of the row marker
is supplied with 3-way valves (F, Fig. 42) which use the same
distributor as the tractor to manage and control an additional
application (E) which works when the seed drill is not running
(e.g. seed hopper filling equipment).
cod. G19503100
WARNING
USE AND MAINTENANCE
fig. 39
fig. 40
B
1
fig. 41
E
fig. 42
g
ENGLISH
C
2
F
TRACTOR
59
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