horsch Leeb 6 GS, Operating Instructions Manual, Page: 56 / 154

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3.8 Filling level gauge Tank-
Control
The Tank-Control digitally shows the filling level
in the solution tank at the filling point and in the
terminal.
The pump automatically switches off when the
entered filling quantity is reached.
Filling level gauge
3.9 Filter
Use all specified filters of the filter
equipment. Clean the filters at regular
intervals.
Trouble free operation of the crop protection
sprayer is only ensured with optimal filtration of
the solution. Appropriate filtering considerably
influences the treatment success of the crop
protection measure.
Pay attention to the permissible filter combina -
tions or mesh widths. The mesh widths of self-
cleaning pressure filters and nozzle filters must
always be smaller than the nozzle opening of
the nozzles used.
Please note that the use of pressure filter ele -
ments with 80 or 100 meshes/inch may with
some crop protection agents cause the separa-
tion of active ingredients.
If in doubt, contact the crop protection product
manufacturer.
Pressure filter
The pressure filter prevents contaminants from
entering into the nozzle line. Different degrees
of fineness are available to suit each application.
By standard the filter is fitted with a 80 mesh/
inch element.
In case of applications with liquid fertiliser or
when using bigger nozzles it is recommended
to use more coarse elements in order to keep
the pressure drop in the filter as low as possible.
The self-cleaning pressure filter prevents block -
ing of the nozzle filters in front of the spray
nozzles.
In circulation mode (main sprayer switch “Off”)
the inside surface of the pressure filter element
is continuously flushed and undissolved crop
protection agent and dirt particles are returned
to the solution tank.
Punched screen
The punched screen prevents that coarse con-
taminants can enter into pump and spraying
system.
Dome screen / filling screen
The dome screen / filling screen prevents con -
taminants from entering when filling the solution
tank through the dome or the induction hopper.
The screen has a standard mesh size of 1 mm.
Suction filter
The suction filter cleans the water / solution be -
fore it enters into the centrifugal pump (mesh size
0.9 mm).
Overview of pressure filter elements
Meshes/
inch
Col-
our
Nozzle
size
Mesh size
[mm]
32 white
50
blue from ‚03’ 0.35
80 grey ‚02’ 0.20
100 red up to
‚015’
0.15
Cleaning the filter
See 9.1.2