Unigreen 50, 40, 55, 20 manual Filling the Tank, Filling with the Antipollution Ejector FIG, Mixing

FIG. 6

FIG. 7

FIG. 8

FIG. 9

WARNING: using the taps on the pump or in any case on the front of the machine puts the operator near the cardan shaft. Despite the presence of CE standard protective covers you should take great care.

4.10 FILLING THE TANK

The machines for defensive crop treatments, in consideration of the safety of persons, animals and the protection of the environment, must only be filled indirectly from open water courses and only by free-falling water from the waterworks.

The pipe used for filling must never come into contact with the liquid inside the tank and therefore the water must always fall over the upper edge of the filling inlet and through the filter installed on it.

The tank is fitted with a transparent graduated band that shows the exact quantity of liquid inside. This reading is precise if the tank is on flat ground; the actual total capacity coincides with the highest number. All the filling systems fitted by Unigreen on their production machines or on request are antipollution and stop the liquid overflowing out of the tank.

4.10.1 FILLING WITH THE ANTIPOLLUTION EJECTOR (FIG. 6)

If you are filling with an antipollution hydroejector (mounted as standard on some models) then you should proceed as follows:

=put roughly 20-30 L of water in the tank and start the pump.

=remove the cap of ejector P and insert filling pipe S.

=place the other end of the hose, on which you fitted filter Q, in the watering point.

=open the tap R that supplies the ejector (on pump or pressure regulator ).

=increase the pressure until it reaches a value which is sufficient to suck up the liquid.

=visually check the level of the liquid inside the tank and after filling disconnect pipe S from the ejector, close the tap R and replace the cap P.

4.11 TEST TREATMENT WITH CLEAN WATER

We recommend doing a test treatment with clean water to get to know the system and check the settings.

4.12 MIXING

The active principle can be mixed using the relevant stirrers before and during the treatment. Correct mixing and stirring is the basis of the correct distribution on the crops. We recommend some useful accessories such as the premixer for powders and liquids (see the following paragraph).

To mix the product in the tank proceed as follows:

a)high-pressure machines from 30 to 60 bar (FIG. N° 7): run the stirrer (or ejector) for roughly 10-15 minutes at the maximum pressure available

b)low pressure machines, max 20 bar

=with a drilled pipe on the drain, run the pump at roughly 540 RPM with the pressure regulator on drain for at least 10-15 minutes. (FIG. N° 8)

=with the stirrer on a delivery, run the pump supplying the stirrer (or ejector) at the maximum pressure available for at least 10-15 minutes. (FIG. N° 7)

Some models with very small tanks aren’t equipped with mixers, you should use the drain of the pressure regulator: run the pump at roughly 540 RPM with the pressure regulator in the drain position for at least 10-15 minutes. (FIG. N° 9).

4.12.1 MANUAL PREMIXING

Dilute the active principle by hand before introducing it into the tank, (you must wear suitable protective clothing such as rubber gloves, a mask or goggles, overalls, etc.).

4.12.2 PREMIXER ON COVER (OPTIONAL):

Open the cover and pour all of the chemical powder into the filter, close the cover and open the supply tap until all of the powder has dissolved.

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