horsch LEEB PT 330, Operating Instructions Manual

Page: 148 / 203

11.4.2 Preparing for spraying
operation
NOTE
Basic prerequisite for the proper application
of crop protection agents is the proper func-
tion of the crop protection sprayer.
¾
Have the crop protection sprayer regularly
tested on a test stand. Rectify apparent faults
immediately. Have the crop protection sprayer
checked, as requested.
¾
Before starting spraying check the following
machine data in the control terminal:
•
the permissible spraying pressure range for
the spraying nozzles installed in the spraying
boom.
¾
Use all specified filters.
¾
Clean the filters at regular intervals.
Trouble free operation of the crop protection
sprayer is only ensured with optimal filtration
of the spraying mixture. Appropriate filtering
considerably influences the treatment success
of the crop protection measure.
¾
Pay attention to the permissible filter combina -
tions or mesh sizes.
The mesh sizes of pressure filters and nozzle
filters must always be smaller than the nozzle
opening of the nozzles used.
The standard pressure filter element used in
the pressure filter has a mesh size of 0.18 mm
with 80 meshes/inch. This pressure filter ele -
ment is adequate for a nozzle size from 02'.
The pressure filter element with 100 meshes/
inch is required for nozzle sizes '015' and '01'
(optional equipment).
¾
Please remember that the use of pressure
filter elements with 100 meshes/inch will
have the effect that with some crop protection
agents active components may be filtered out.
If in doubt, contact the crop protection agent
manufacturer.
¾
Generally clean the crop protection sprayer
before placing a different crop protection agent
¾
Flush the nozzle line:
•
with each nozzle change
•
before the installation of other nozzles
•
before turning the three-fold nozzle head to
another nozzle.
¾
Take appropriate action if an error message ap-
pears in the display during spraying operation.
¾
Check the displayed spraying pressure during
spraying operation.
¾
Make sure that the displayed spraying pres-
sure does under no conditions deviate from
the specified spraying pressure from the
spraying table by more than ±25%, e.g. when
changing the application quantity
¾
More significant deviations from the specified
spraying pressure will adversely affect the
optimal treatment success of the crop pro-
tection measure and/or cause environmental
damage.
¾
Reduce or increase the travel speed, until the
permissible spraying pressure range (of the
intended spraying pressure) is reached again.
Never spray the spraying mixture container
completely empty (this does not apply for
the end of the spraying operation).
Fill up the spraying mixture container at the
latest when a filling level of approx. 50 litres
is reached.
148