horsch Leeb 5.280 VL, Operating Instructions Manual

Page: 23 / 308

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Before starting maintenance and service work
park the machine on level and firm ground and
secure it against rolling away. Clean the self-
propelled crop protection sprayer, especially
the parts which are contaminated by spraying
mixture. Wear the protective outfit stipulated
in the safety data sheet when cleaning!
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Lock hydraulically operated parts and depres-
surise the hydraulic system.
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Prior to working on the electrical system,
disconnect it from the electric current supply.
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When performing welding work on the ma-
chine, disconnect the cables from computers
and other electronic components. The ground
connection must be as close as possible to
the welding point.
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Secure all operating media like compressed
air and hydraulics against unintended com-
missioning.
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Secure the raised machine or raised machine
parts against accidental lowering before start-
ing maintenance, repair and cleaning work!
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Repair work inside the spraying mixture con-
tainer must only be performed after thorough
cleaning and wearing protective outfit with a
respirator. This work must be monitored by a
second person outside the spraying mixture
container for safety reasons! Ensure sufficient
ventilation of the spraying mixture container!
Only approved qualified personnel may enter
the spraying mixture container!
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Before cleaning the machine with high pres-
sure cleaner cover all openings, which should
stay clear of water, steam or cleaning agents
for reasons of safety or function. Do not aim
the water jet directly on electric or electronic
components and bearings.
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When cleaning with high pressure cleaning
equipment or steam jets keep a distance of at
least 150 cm to machine components.
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After cleaning, check all hydraulic lines for
leaks and loose connections.
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Check for chafing and signs of damage. Rem -
edy any faults immediately!
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Screw connections loosened for the purpose
of care and maintenance work must be
retighten after work is completed.
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Dispose of oils, greases and filters according
to regulations!
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If protective features are subjected to wear,
they must be inspected at regular intervals
and replaced in due time
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Do not clean new machines with a steam jet
of a high pressure cleaner. The paint takes
approx. 3 months to cure and could be dam-
aged before this time.
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Pay attention to the following when repairing
self-propelled crop protection sprayers which
have been used with ammonium nitrate - car-
bonyl diamide solution:
residues of ammonium nitrate - carbonyl di-
amide solution may form salt on or inside the
spraying mixture container through the evapo-
ration of water. This results in pure ammonium
nitrate and carbonyl diamide. In its pure form,
ammonium nitrate in connection with organic
matter, such as carbonyl diamide, becomes
explosive, if critical temperatures (caused by
e.g. welding work, grinding) are reached dur-
ing repair work.
By thoroughly cleaning the spraying mixture
container or the parts to be repaired with
water, this risk can be eliminated, because
the salt of the ammonium nitrate - carbonyl
diamide solution is water-soluble.
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All other maintenance and repair tasks,
which are not described in the operating
instructions, must only be carried out by
an authorized professional workshop or
by an operator who has been trained by
HORSCH for this purpose.
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