43
GB 09 01
Air Technique
Air tec
Air tec
Air tec
Air tec
Air technique
hnique
hnique
hnique
hnique
With TWIN air assistance energy is added to the spray
droplets to improve control with the spray liquid .
This way TWIN makes it possible to:
carry the spray droplets safely to the target and in-
crease plant deposit
minimize off-target deposit due to wind drift or loss on
the ground
open the crop and obtain good penetration even with a
low volume rate
ensure a high coverage.
Air speed / Air v
Air speed / Air v
Air speed / Air v
Air speed / Air v
Air speed / Air volume
olume
olume
olume
olume
The fan speed is infinitely variable and can produce from
0 to 35 m/s (78 mph) air speed at the air outlet. This
equals from 0 to 2000 m
3
air/m boom/hour
(3.872 CFM/A boom/hour).The air speed must be
adjusted to the spray job
Blow
Blow
Blow
Blow
Blower adjustment
er adjustment
er adjustment
er adjustment
er adjustment
The oil flow determines the air
speed from the blowers. The
oil flow can be observed on
the pressure gauge (0-250
bar).
The colour codes of the
gauge refer to air speed
produced at certain pressure
ranges.
Pressure in bar
When booms are half-folded, reduce r.p.m. or pressure
with 25% to obtain the same performance.
The following table gives a rough guideline of the air
assistance needed for different crop conditions.
Ang
Ang
Ang
Ang
Angling of
ling of
ling of
ling of
ling of air and liquid.
air and liquid.
air and liquid.
air and liquid.
air and liquid.
The main purpose of the TWIN angling system is to
counteract for the negative influence which wind direc-
tion and driving speed have on the quality of the spray
job. Further the co-angling af air and liquid can help
opening dense crops for better penetration
The TWIN FORCE air system can be set at any angle
from 40° forward to 30° back (defined by the air stream).
Adjusting the air assistance
Adjusting the air assistance
Adjusting the air assistance
Adjusting the air assistance
Adjusting the air assistance
The air speed and angling must always be adjusted
individually for each spray job and the given weather
conditions.
It is always a good idea to get used to a new sprayer out
in a field with only water in the tank, on this occasion the
following routine for air adjustment should be practised:
1.
Start with the air vertical
2.
Set the air speed ...............
A
3.
Find the best angling .........
B
4.
Readjust the air ..................
A
IMPORTANT!
Fine turning of air speed and angling will
often be necessary all through the spraying job.
It is easiest to find the best air setting to reduce drift
when the sun is low and behind the boom (backlight).
These conditions make the drift more visible.
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Driving direction
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