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6. ADJUSTMENTS
This chapter describes the adjustments to be made to the
VESTA-2813 seed drill in order to adapt it to the requirements
of the soil and the type of seed to be sown. The values given
in this manual may vary depending on ground conditions,
climate factors or machine condition.
6.1 LEVELLING THE COULTER UNIT
To level the coulter unit, use the adjuster (1, Fig. 6.1) located
at the rear of the hopper.
Fig. 6.1
1
VERY IMPORTANT:
PERFORM THIS ADJUST-
MENT WITH THE MACHINE COUPLED TO THE
TRACTOR.
LEVEL THE COULTER UNIT SO THAT ALL THE
COULTERS TOUCH THE GROUND AT THE SAME
TIME (FIG. 6.2).
Fig. 6.2
6.2 DEPTH CONTROL
The sowing depth is controlled by means of:
- The
DEPTH ADJUSTERS
see section 6.2.1.
- The
DEPTH CONTROL WHEELS
see section 6.2.2.
- The
FOLDING PART ANGLE STOPS
see section 6.2.3.
- The
COULTERS
see section 6.2.4.
VERY IMPORTANT:
THE COULTER UNIT MUST
BE LEVELLED BEFORE ADJUSTING THE SOWING
DEPTH (SEE SECTION 6.1 LEVELLING THE COUL-
TER UNIT).
In order to ensure correct adjustment of the sowing depth,
you are advised to follow the steps given below:
1-
Raise all depth control wheels (see section 6.2.2 DEPTH
CONTROL WHEELS). If the machine model is equipped
with compacting rollers, these should be left loose (see
section 6.8 COMPACTING ROLLER).
2-
Set the desired sowing depth by means of the coulter
unit's main adjusters or the carriage stops (see section
6.2.1 DEPTH ADJUSTERS).
3-
Travel 10 metres with the coulter unit in working position
and floating mode.
4-
Check that the sowing depth of the coulters in the cen-
tral section is at the desired level. If not, adjust the depth
again by means of the coulter unit's main adjusters or the
carriage stops (see section 6.2.1 DEPTH ADJUSTERS) and
travel a further 10 metres to check.
4.1-
Once the depth has been set in the central sec-
tion, for those models that have a compacting
roller or control wheels in the central part, lower
the central part of the coulter unit until it touch-
es the ground. Proceed as specified in sections
6.2.2 DEPTH CONTROL WHEELS or 6.8 COMPACT-
ING ROLLER.
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