horsch LEEB 4 LT, Operating Instructions Manual

Page: 108 / 162

8.5.4 Spraying
1. Switch on the terminal.
2. Adjust the agitator.
3.
Prepare the spraying mixture as specified
by the crop protection agent manufacturer
and stir it up.
4. Unfold the spraying boom.
5. Set the working height of the spraying boom
(distance between nozzles and plants) in
dependence of the nozzles used according
to the spraying table.
6. In the terminal check the value “Pulses per
100 m”.
7. In the terminal check the value “min. pres-
sure” and “max. pressure” for the permissible
spraying pressure range (for the installed
spraying nozzles).
8. Enter the value for “Nominal quantity” for the
required application quantity into the terminal
or check the stored value.
9. Switch on the sprayers via the terminal.
NOTE
Comply with the applicable country specific
regulations! Comply with regulations concern-
ing the distance to waters and adjacent areas!
Travelling to the field with the agitator
switched on:
¾
Switch on the agitator via the terminal and
adjust the intensity.
The required agitating power depends on the prepa-
rations used and must be checked by the user.
After filling the agitator may be set to maximum
intensity to avoid demixing during longer trans-
port travels!
Before starting spraying operation you
should reset the stirring intensity you had set
for travelling, if it deviates from the stirring
intensity required for spraying!
8.5.5 Measures for windward drift
reduction
¾
Schedule your work for early morning or even-
ing (generally less wind).
¾
Reduce the spraying pressure.
¾
Choose bigger nozzles and high water ap-
plication quantities.
¾
Strictly maintain the exact boom working height,
because the risk of windward drift will increase
considerably with increasing nozzle distance.
¾
Reduce the travel speed (below 8 km/h).
¾
Use of so-called antidrift (AD) nozzles or injec-
tor (ID) nozzles (nozzles with a high proportion
of coarse drops).
¾
Follow the distance instructions for the cor-
responding crop protection agent.
8.5.6 Spraying with 25 cm nozzle
spacing and reduced target area
distance
¾
The risk of windward drifting can be consid-
erably reduced by reducing the target area
distance to less than 50 cm.
¾
This reduction of the target area distance is
only possible with a continuous 25-cm nozzle
pitch. Otherwise there is a risk of strip forma-
tion caused by non-existing overlapping of the
spraying cones.
¾
A distance reduction is only possible if all
nozzles used at a time are of the same type
and the same size.
¾
The minimum target area distance corre-
sponds with half the minimum target area dis-
tance for a corresponding 50 cm nozzle pitch.
¾
see nozzle manufacturer's data
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