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14
8 MAINTENANCE
(to carry out with the internal combustion engine stopped or the
plug detached for electric motors).
The maintenance of the sprayer is essential for maintaining a
high level of safety. Also consult the single handbooks of the
main components of the sprayer.
All of the maintenance operations and repairs must be carried out
with the machine and cardan shaft stopped and the tank and
circuit clean of any residues of chemical products.
8.1 PROGRAMMED MAINTENANCE
( TAB. N° 7, page 18 )
We recommend using a table of programmed maintenance to
follow in time to keep the sprayer in an efficient working
condition.
For major and important maintenance jobs we recommend using
the normal UNIGREEN assistance service available from your
reseller, using original UNIGREEN spare parts.
8.2 EMPTYING TANK
The MULTI-purpose unit is equipped with a tap for emptying the
tank completely.
When cleaning the interior of the cistern, all the washing liquids
can be conveyed toward the tap indicated to the side.
We advise connecting the supplied tube in order to avoid
discharging the liquid directly onto the unit and its structure.
8.3 ROUTINE MAINTENANCE
= After every treatment, wash the inside of the tank and the
entire circuit as indicated in paragraph 4.13
= Periodically check that the suction and delivery filters are
clean (see figure)
= Check the oil level in the volumetric compensator of the
pump
= The use of chemical products that are particularly damaging
for a nitrile rubber mix (ex.. herbicides and products for rice
fields) can cause the diaphragm to break before time.
In these conditions check the state of the components more
often.
8.4 EXTRAORDINARY MAINTENANCE
At the end of a season of intense use, or every two years of
normal use, it is a good idea to have a specialised service
technician perform a general check on the machine.
8.5 REPAIRS
We recommend having the normal UNIGREEN assistance
service available from our reseller perform any repairs or contact
a specialised workshop. During all of the repairs, in particular
when welding, the machine and the circuit must be clean of any
residues of chemical product.
If the machine has to be lifted (for example to change a wheel)
follow the instructions in point 4.1 of the present handbook.
Also make sure the machine is stopped, connected to the
tractor, and use the relevant chocks to block the wheel still on
the ground.
If you use a jack (manual or hydraulic) make sure you use a jack
that is suitable for the frame so it can’t slip and put it in the right
position. The jack must be placed under the main frame of the
machine near the wheel to change. Make sure the ground is
compact: if necessary use wooden beams or other sufficiently
resistant material to broaden the supporting base of the jack.
Smontaggio Filtro di Aspirazione
Rubinetto di svuotamento cisterna