Assessments - 2, GPA: 3.5 ( )

Fabricante : Unigreen Arquivo Tamanho: 967.17 kb Arquivo Nome : Língua de Ensino:

= loosen the hand wheel of maximum pressure valve B completely (anticlockwise). = open volumetric valve E completely. = start the pump by activating the power-takeoff of the tractor at 540rpm = open main control A (position “ON”), the manometer will be activated = open the drain tap on filter F slightly (only ERGO and REMO).. = close volumetric valve E completely. If the pressure rises over the maximum limit of the system, make sure maximum pressure valve B is open (see previous indications) = open all of the section valves C (position “ON”) = adjust maximum pressure valve B to a value over that of the working pressure (generally 10-14 bar) and in any case lower than the safe maximum pressure that the system can reach. Adjusting the volumetric pressure. = with the volumetric pressure valve E adjust the pressure to the value the treatment will be done at (the pressure is indicated on the nozzles tables on the basis of the tractor speed and litres/hectare to spray) Warning! The working pressure must be adjusted with the volumetric valve and not with the maximum pressure valve. In the case the working pressure is too near to the calibrated pressure of the maximum pressure valve, the proportional valve may not be able to compensate the speed variations correctly. Adjusting the compensated returns = close only one tap of section C (position “OFF”). = adjust the corresponding compensator G until you return to the pressure set previously (displayed on the manometer). = open and close the tap of section C and check that the pressure remains constant. = repeat the above operations for all the section taps. If the types of nozzles aren’t changed the regulations carried out will guarantee a constant spraying of the liquid also per treatments that are done at different working pressures. NB: if the type of nozzle is changed then the calibrating will have to be done again. 4.9 DELIVERY FILTERS (ONLY EQUIPPED MODELS) Particularly useful when using small (low volume) nozzles. In a central position with a manometer after the filter that shows any blockages in the cartridge. On the RVA version there is also a manometer before the cartridge to make it easier to find the problem. For cleaning the cartridge in the model RVA you should open the drain with the relevant lever (Fig. N° 4) for 2-3 minutes during the washing operations, as in the enclosed instructions. You should clean the cartridge by hand periodically, on the basis of the product used.To clean, stop the pump.Wear rubber gloves and the other personal protective equipment when cleaning. FIG. 4 11 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. 4.10.1FILLING 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 availab...

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