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Hardi ZENIT A750, Instruction Book

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Hardi ZENIT A750 Instruction Book Download Page 28

3  -  Description

3.18

The hydro-pneumatic system is medium to high pressure. This system takes advantage of the great amount of 
turbulence in the cone-shaped low-volume nozzle and distributes the sprayed water correctly. The air gets to the 
spout at high speed and this spreads the water in the shape of a fan.

There  are  two  types of  spout,  with  three or five nozzles.  These 
two spouts cannot be used together.

Spout with 3 nozzles
Spout with 5 nozzles

Hydro-pneumatic System

A

A

B

B

Summary of Contents for ZENIT A750

Page 1: ...ZENIT Instruction book 67025002 Version 1 0 GB 9 2005 ...

Page 2: ......

Page 3: ...ation 3 4 MANIFOLD system 3 4 HLC circuit 3 4 Safety valve 3 4 Pressure damper 3 5 Diagrams of operation system 3 6 Operating units 3 7 M70 2 3 7 BKC 2 3 8 EVC 2 3 9 Air kit 3 10 Axial fan Technical information 3 10 Adjusting the fan 3 10 Protection grids 3 11 Air flow and power consumption 3 12 Gear Box 3 13 Centrifugal turbine Technical information 3 14 Protection grids 3 15 Air flow and pressur...

Page 4: ...lectrical control box 4 5 Installing the control box type Spray Box 4 6 Booms 4 7 Technical information 4 7 B 11 Fixed boom 4 7 B 20 Manual boom 4 7 B 20 Hidraulic boom 4 7 5 Operating Liquid and air circuits 5 1 Suction filter 5 1 Diaphragm pump 5 1 Tank 5 2 Pressure filters 5 2 Agitation 5 2 Cleanwartertank 5 3 Powder mixer 5 3 Gear Box 5 3 Nozzles 5 4 Booms 5 5 Technical information 5 5 B11 Fix...

Page 5: ... 3 After every 1000 hours of use 6 3 Winter storage 6 4 Preparing the equipment for use after storage 6 4 7 Fault finding Technical information 7 1 Before call to the Technical Service 7 1 In the case that 7 1 Could be 7 1 It s advisable 7 1 8 Technical specifications Dimensions 8 1 Axial 8 1 Pneumatic 8 1 Weights 8 2 Axial 8 2 Pneumatic 8 2 Pumps 8 3 321 7 8 3 321 10 8 3 363 7 8 4 General info 8 ...

Page 6: ......

Page 7: ...________________________________________________________ A complies with the provisions in the Directive 98 37 CE on machines as well as the national regulations that cons titute its transposition B complies with the current standards at the time of its manufacture with the Annex IV of the Directive 98 37 CE and harmonised standards Lleida May 2004 Josep Maria Godia Ribes Technical Director ILEMO ...

Page 8: ......

Page 9: ...ger that the air kit may explode Carry out a pressure test with clean water before using any type of chemical product Use appropriate protective clothing gloves helmet waterproof clothing etc Clean and rinse the equipment after use and before inspection De pressurize the equipment after use and before inspection Never inspect or repair the machine when on Disconnect the electrical circuit of the m...

Page 10: ...al information for an efficient use and maintenance of this high quality product As this instruction manual includes all the HARDI ZENIT axial pneumatic and hydropneumatic models please pay special attention to the paragraphs dealing with the one you have acquired This manual should be read along with that of Spraying Techni ques provided with the equipment so that you can obtain the best possible...

Page 11: ...neral view 1 2 3 4 5 6 7 8 9 10 11 12 1 Main tank 2 Suction filter 3 Rinse tank 4 Clean water tank 5 Lid of main tank 6 Rinse tank cap 7 Pump 8 Operating unit 9 3 point hitch 10 Carried rod hitching 11 Front level indicator 12 Quick hitch 10 12 ...

Page 12: ... products used for crop protection and liquid fertili sers This equipment may only be used for this purpose Use of the mist blower for other purposes is not allowed If there is no special legislation in your region which obliges the user to have a permit to use chemical products it is recommended you know the basic techniques for their use to avoid the risk of contaminating both people and the env...

Page 13: ...ctured with a tubular profile which provides great durability and resistance to breakages and vibrations To protect it from corrosion it is sanded down and covered with a layer of special paint that contains a polyurethane bi component with anti corrosion additives and protection against ultraviolet rays Tank Made of medium density polyethylene with ultraviolet filters it has smooth rounded surfac...

Page 14: ...ing the liquid circuit with clean water Each function is identified by a pictograph and are optionals The MANIFOLD System Depending on the model there may be a MANIFOLD valve This is a three way manual valve that allows you to select the tank from which the pump is to aspirate It is black and is situated on the lo wer left hand side of the blower above the suction filter Optiona lly a blue return ...

Page 15: ...used by pressure pulses in the liquid circuit the 321 pumps are fitted with an pressure damper The damper should be loaded at the pressure shown in the table on top of the pulsation damper 3 Description Pressure damper 3 5 A A ...

Page 16: ...5 2 3 4 6 10 9 7 8 11 12 13 14 1 Main tank 2 Suction MANIFOLD black 3 Suction filter 4 Pump 5 External filling 6 Safety valve 7 Pressure collector 8 Agitation 9 Section valves 10 Pressure filters 11 Fan and nozzles 12 Powder mixer 13 Nozzle for internal cleaning 14 Return Manifold Blue 15 Pressure regulator 3 6 15 Circuit configuration can vary according to local legislation and standards e g dump...

Page 17: ...nd sections of the spray line open and close With the lever on the left the flow is shut off from the nozzles and the return manifold is opened up completely To start operation one must increase the pressure using the red h a n d l e to the left of the operating unit Turn clockwise to increase pressure or anti clockwise to decrease it Check the pressure gauge to see when it is at the correct press...

Page 18: ...g this procedure the return manifold of each section is re gulated so that it returns the same amount of liquid to the tank as is expelled through all its nozzles when open This avoids variations in pressure when one or two sections are shut off The regulation procedure is the following 1 Open the two sections via the electrical control box 2 Put the pressure at for example 3 bar 3 Close one of th...

Page 19: ...is regu lated so that it returns the same amount of liquid to the tank as is expelled through all its nozzles when open This avoids variations in pressure when one or two sections are shut off The regulation procedure is the following 1 Open the two sections and on the electrical control box 2 Put the pressure at for example 3 bar 3 Close one of the sections 4 With the pressure equalisation valve ...

Page 20: ...change any of the parts without consulting your nearest dealer beforehand Handling air kits in order to change their cha racteristics should be done by qualified people Adjusting the fan The angle of the fan blades can be adjusted to 4 positions They normally come in position 3 Decreasing the angle of the blades minimum angle position 1 lessens the flow and decreases power consumption By increa si...

Page 21: ...ake the protection grids off the equipment whilst it is in use Do not go near the fan when the equipment is in use if you are wearing light or loose clothing Never put foreign bodies inside the fan via the grid regar dless of whether it is in use or not Protect your ears from the sound the fan makes by wea ring EN 352 1 1992 homologated ear muffs or something similar If you were to notice vibratio...

Page 22: ... P M KW A750 AG750 AG820 Blades in position 3 Power consumption These results have been calculated when the fan is in top gear To work out the results in first gear decrease the values by 45 Blades in position 4 Flow These results have been calculated when the fan is in top gear high To work out the results in first gear decrease the values by 15 pos 4 1 4 5 larga high 25000 30000 35000 40000 4500...

Page 23: ...itre of oil for cooling and lubrication The type of oil used is SAE 90 which is ideal for high temperatures See Maintenance for how frequently the equipment has to be checked The gear box for the AG750 and AG820 air kits has two speeds The speed ratio is the following AG750 1st speed 1 3 7 2nd speed 1 4 AG820 1st speed 1 3 69 2nd speed 1 4 36 It holds 1 3 litres of oil for cooling and lubrication ...

Page 24: ...R KITS Model Turbine Flow m3 h Gearbox P540 540 mm 11 000 2 speeds P540D 540 mm double 19 000 2 speeds The tractor P T O should not exceed 540 rpm as there is grave danger that the air kit may explode Keep away from the air inlets and outlets while the fan is in use Some objects may be expelled from the air outlet or a piece of cloth could be sucked into the air inlet The air kits are the most dan...

Page 25: ... If you were to notice vibrations or hammering switch off the turbine immediately 3 15 3 Description The following graphs show the air flow and pressure supplied by the two turbine models These results have been calculated when the fan is in top gear To work out the results in first gear decrease the values by 15 Air flow and pressure KIT AIRE NEUMATICO P540 0 100 200 300 400 500 0 5000 10000 1500...

Page 26: ...ir kits has two speeds The speed ratio is the following 1st speed 1 6 6 It holds 1 75 litres of oil for cooling and lubrication The type of oil used is SAE 90 which is ideal for high temperatures See Maintenance for how frequently the oil has to be chan ged ...

Page 27: ...e of a fan There are four types of spouts which combine with the type of boom and assembly you may have acquired with your piece of equipment Cannon with one outlet Spout with 2 outlets Spout with 3 outlets Spout with 4 outlets For this system ceramic discs are used to determine the flow rate This type of disc has two positions If the disc is placed so that the flow goes in through its flat side t...

Page 28: ...n the cone shaped low volume nozzle and distributes the sprayed water correctly The air gets to the spout at high speed and this spreads the water in the shape of a fan There are two types of spout with three or five nozzles These two spouts cannot be used together Spout with 3 nozzles Spout with 5 nozzles Hydro pneumatic System A A B B ...

Page 29: ...aces of the metallic parts of the mist blower have been treated with a strong protective product we recommend you apply to all those parts a layer of anti corrosion oil to stop chemical products discolouring the enamel and help future cleaning This should be carried out whenever the protective layer wears off Storage wheels On unhooking the equipment to exchange it for another or to sto re it away...

Page 30: ...h parts of the shaft Place one part of the shaft onto the tractor and the other onto the mist blower and measure the length that it has to be cut Mark the protection grids The shafts must always overlap at least 1 3 of their length 4 Both parts must be cut to the same size Use a saw and then file the pipes down afterwards 5 Grease the pipes and join the male and female pipe ends once more 6 Fit th...

Page 31: ... the two hooks will close automatically and the equipment will be fixed to the tractor 8 Put the safety rivets of the semi automatic quick hitch on to avoid the equipment from becoming detached during transpor tation or spraying 9 Place the equipment at the height needed 10 Tighten the third point until the equipment is completely per pendicular to the ground To detach the mist blower you should p...

Page 32: ...20 HY there is an optional electro hydraulic control kit with which it is possible to control all the boom s movements by means of a joystick that is fitted to the hydraulic lever With this system only one double acting outlet is necessary CANNON L M T Hydraulic engine 180º turn 1 double acting outlet Spout lifting cylinder 1 double acting outlet 4 4 4 Start up A A A B B C C Hydraulic Movements of...

Page 33: ... a place in the tractor s cab where it is possible to put a con trol box so that you can work it in as comfortable a way as possi ble The place we most recommend is to the right of the driver s seat The control box should be firmly attached to avoid bangs or excessive vibration The type of connector is universal and you should be able to plug it into any tractor If you take off the end cap you can...

Page 34: ...hould be able to plug it into any tractor As an emergency solution you can dismantle the connector and connect the cables directly to the battery Always remember Brown cable blue cable The basic control box is fitted with an insulated fuse When there is a short circuit the fuse heats up and the box stops working On cooling down the box starts working again This may take between 2 and 10 minutes de...

Page 35: ...ing four row sides or two complete rows The spouts are totally adaptable to the type of crop Loo sen the screws on the spout supports and adapt the height and width In order to direct the spout to the area to be treated it can be rotated The left and right hand booms can be opened and closed ma nually With the lifting cylinder if it is fitted it is possible to raise or lower the two booms at the s...

Page 36: ...4 8 4 Start up ...

Page 37: ...e the remaining liquid solidifies In this way you will avoid problems of blockage or lack of suction occurring when you next use the machine 5 1 5 Operating Liquid and Air Circuits Suction Filter A A B B C C Diaphragm pumps The maximum number of revolutions when in use is 540 rpm It is self priming and can be run dry Depending on the model ac quired the pump is fitted with 2 or 6 diaphragms The op...

Page 38: ...utomatically Do not forget to use protective clothing and gloves when doing this Tank Pressure filters Pressure filters stop allowing those impurities which have not been filtered out during suction from getting to the nozzles To avoid blockage of those filters it is very important to check them from time to time and empty them at the end of every treatment so that the chemical product does not so...

Page 39: ...ich form lumps when they first come into contact with water After use the powder mixer should be switched off as it uses a lot of flow Powder mixer When you are going to work with spray guns or simply agitate liquid it is not necessary for the fan to be on Therefore it is advi sable to put the gear box in neutral off The gear box is behind the pump When the gear lever is in the middle position the...

Page 40: ...e cone shaped part the nozzle will give out more flow than if it is placed the other way round The function of these nozzles in the pneumatic equipment is to control the amount of flow needed to break up the spray film The pressure ranges of the pneumatic equipment go from 0 to 4 bar On CANNON models there are three different types of spout Model L is made of polyester and is only fitted on equipm...

Page 41: ... depending on how dense the crop type is With regulating bracket it is possible to put all the spouts on the back backwards or forwards With regulating bracket it is possible to place the spouts nea rer or further away from the row depending on how dense the crop type is The spouts can be totally adapted to the crop type either for treatment in specific areas or a generalised treatment With regula...

Page 42: ...5 6 5 Operating ...

Page 43: ...ank The lid is on the left hand side of the equipment and is easy to find because it is red On the lid there is a tie which attaches it to the tank so that it does not get lost You should fill this tank up with a hose that does not belong to the equipment s liquid circuit so as to avoid any sort of chemical product getting inside this tank To clean the tank you should place the three way valve sit...

Page 44: ...s ready for use Clean mist blowers do not end up being damaged by pesticides and dissolvents Cleaning Procedure To clean the outside of your mist blower correctly it would be convenient to follow the steps below 1 Dilute any remaining product in the tank by at least ten times the amount of water and spray over the trees which have already been treated It is recommended you increase your forward sp...

Page 45: ... the tank operating unit and pipes Close the nozzles and switch off the PTO Close the suction filter valve and open the filter Immediately put clean water down the suction hose which goes straight to the pump and open up the nozzles Follow the procedure until clean water comes out of the nozzles Stop the pump and put the suction filter back in place 5 9 5 Operating ...

Page 46: ... could cause it to overheat and all its inside mobile parts could break Filters and fittings Check the filters after every 50 hours of use As well as checking whether the filter is clean make sure the mesh is in perfect condition If it is not the filter will not be effective at all Not having filters in good condition leads to numerous unwanted stops during a working day Each time you dismantle a ...

Page 47: ...s and O rings 3 Undo the bolt and replace the diaphragms 4 Remember to place the diaphragms with piece number up wards 5 Reassemble the pump placing the valves in the correct posi tion 6 Put grease Take care not to fit valves on upside down 7 Fit the cranckcase again Bear in mind that there are two different types of valves on the upper cranckcases which must be replaced in the same position 6 2 6...

Page 48: ...tch 5 Grease the diaphragm pump After every 100 hours of use 1 Carry out the checks mentioned above 2 Check the clasps on the equipment for attaching it to the tractor After every 250 hours of use 1 Carry out the checks mentioned above 2 Check the hydraulic hoses 3 Change the oil in the gear box After every 1 000 hours of use 1 Carry out the checks mentioned above 2 Service check of the transmissi...

Page 49: ...ring the period of time that the equipment will be out of use Lubrication Preparing the equipment for use after storage After storage the equipment should be prepared well thus guaranteeing it is in good condition for the new season To do this correctly follow the steps set out below 1 Take off the protective canvas cover if you had put one on 2 Fit the pressure gauge again Change the old Teflon 3...

Page 50: ...agi tation is on Worn nozzles Check the flow through every one and replace those that exceed it by 10 Air suction when emptying the tank Too much agitation Disconnect the agitator to empty the tank Pressure increases Pressure filters are starting to block Clean all filters Agitation nozzle is blocked Check for blockage by opening or closing agitation Foam production Air is entering the system Chec...

Page 51: ...T AXIAL Capacity liters 400 600 1000 A mm 1660 1660 1850 B mm 980 1200 1640 C mm 1275 1350 1440 ZENIT PNEUMATIC Capacidad liters 400 600 1000 Boom type B11 B20 B11 B20 B11 B20 A mm 1660 245 1660 245 1660 245 B mm 1950 195 1950 195 1950 195 C mm 1700 220 1700 220 1700 220 ...

Page 52: ...fications 8 2 ZENIT AXIAL Capacity liters 400 600 1000 Empty kg 365 375 430 Full kg 863 1113 1595 ZENIT PNEUMATIC Capacity liters 400 600 1000 Boom type B11 B20 B11 B20 B11 B20 Empty kg 380 460 390 470 445 625 Full kg 880 960 1130 1210 1610 1690 ...

Page 53: ... 3 7 25 22 3 0 30 3 3 37 3 6 40 4 0 44 4 8 50 4 8 Maximum pressure 25 bar Weight 23 2 kg Normal working revolutions 540 r p m 8 3 321 10 r min 300 400 500 540 600 700 bar l min kW l min kW l min kW l min kW l min kW l min kW 0 39 0 3 52 0 4 65 0 5 70 0 6 78 0 7 91 0 8 5 39 0 3 52 0 5 65 0 6 70 0 6 78 0 7 91 0 8 10 39 0 7 52 0 9 65 1 1 70 1 2 78 1 4 91 1 6 15 39 1 0 52 1 4 65 1 7 70 1 8 78 2 0 91 2...

Page 54: ...6 1 00 102 1 30 128 1 70 136 1 80 152 2 00 177 2 30 4 74 1 30 98 1 50 125 1 90 133 2 10 147 2 40 170 2 80 6 73 1 40 97 1 80 121 2 30 130 2 50 144 2 90 167 3 50 10 71 1 80 95 2 40 117 3 10 127 3 40 141 3 80 164 4 60 15 70 2 40 92 3 20 115 3 90 124 4 40 137 5 00 161 5 90 20 68 2 90 90 3 90 113 4 80 122 5 40 135 5 90 158 7 00 Maximum pressure 20 bar Weight 52 6 kg Normal working revolutions 540 r p m...

Page 55: ...life its parts can be recycled The tank is 100 reusable at a plastic recycling plant Hoses and synthetic fittings can be burnt The aluminium parts of the fan can be taken to an aluminium recycling plant Metalic parts can be taken to a scrapyard Always in accordance with local legislation Conversion factors SI unit Imperial unit Factor Weight kg lb x 2 205 Surface ha acres x 2 471 Length cm in x 0 ...

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