horsch Leeb 4 AX, Operating Instructions Manual

Page: 60 / 161

Filter
NOTE
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 flawless filtration
of the spraying mixture. Appropriate filtering
considerably influences the treatment success
of the crop protection measure.
Pay attention to the permissible filter com-
binations or mesh sizes. The mesh sizes of
self-cleaning pressure filters and nozzle filters
(optional) must always be smaller than the noz-
zle opening of the nozzles used.
Please note that the use of pressure filter ele -
ments with 80 or 100 meshes/inch may cause
the separation of biocatalysts with some crop
protection agents.
Follow the notes of the crop protection agent
manufacturers.
Pressure filter
The pressure filter prevents contaminants from
entering into the nozzle line. Different degrees
of fineness are available to suit each application.
The filter is fitted with a 80 meshes/inch element
as standard.
In case of applications with liquid fertiliser or
when using bigger nozzles it is recommended
to use coarser elements in order to keep the
pressure drop in the filter as low as possible.
Dome screen
The dome screen prevents contaminants from
entering into the spraying mixture container dur-
ing filling through the dome. The screen has a
standard mesh size of 1 mm.
Suction filter
The suction filter filters the water / chemical
before the piston diaphragm pump (mesh size
0.9 mm). Different mesh sizes are available
depending on the application.
Overview of pressure filter elements
Meshes/inch Nozzle size Mesh size [mm]
32
50
from ‘03’ 0.35
80 ‘02’ 0.20
100 up to ‘015’ 0.15
Cleaning of the filters, see chapter Care and
Maintenance.
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