Hardi LZ Series Instruction Book

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HARDI INTERNATIONAL A/S reserve the right to make changes in design or to add

new features without any obligation in relation to implements purchased before or after

such changes.

Contents

EC Declaration of Conformity .................................................... 2

Operator safety ......................................................................... 3

Description ................................................................................ 4

Function diagram ...................................................................... 5

Connecting the sprayer ............................................................. 6

Operating instructions ............................................................... 8

Adjustment of the controls .................................................. 11

Maintenance ............................................................................ 14

Cleaning the sprayer .......................................................... 14

Lubrication .......................................................................... 17

Re-adjustment of the Boom ................................................ 21

Changing of valves and diaphragms .................................. 26

Changing of ball seat in operating unit ............................... 27

Check of valve cone in distribution valves .......................... 27

Off-season storage ............................................................. 28

Operational problems .............................................................. 29

Technical specifications ........................................................... 33

Assembly ................................................................................. 39

Instruction book

674892-GB-04/2002

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Page 1: Table Of Contents
Operational problems .............. 29 Technical specifications ............33 Assembly ................. 39 Instruction book 674892-GB-04/2002 HARDI INTERNATIONAL A/S reserve the right to make changes in design or to add new features without any obligation in relation to implements purchased before or after such changes.
Page 2: Ec Declaration Of Conformity
EC Declaration of Conformity Manufacturer, HARDI INTERNATIONAL A/S Helgeshøj Allé DK 2630 Taastrup DENMARK Importer, declare that the following product; Adhere extra shipping package labels to inside cover. A. was manufactured in conformity with the provisions in the COUNCIL DIRECTIVE of 14 June 1989 on mutual approximation of the laws of the...
Page 3: Operator Safety
We congratulate you for choosing a HARDI plant protection product. The reliability and efficiency of this product depend on your care. The first step is to carefully read and pay attention to this instruction book. It contains essential information for the efficient use and long life of this quality product.
Page 4: Description
Description The HARDI LZ models are designed for the application of crop protec- tion chemicals and liquid fertilizers. They consist of a pump, frame with 800, 1000 or 1200 litre tanks, Self- Cleaning Filter, EC operating unit, LHZ 12, 15, 16, 18, 20, 21 or 24 metre fully hydraulic operated spray boom and transmission shaft.
Page 5: Function Diagram
Function diagram 1. Suction filter 2. Pump 3. Self-Cleaning Filter 4. Safety valve 5. Pressure agitator 6. On/off valve with pressure gauge 7. Pressure control valve with HARDI-MATIC 8. Distribution valve with pressure equalization. 9. Sprayer boom.
Page 6: Connecting The Sprayer
Connecting the sprayer The sprayer is designed for three point suspension and is equipped with 28 mm pivots (cat. II). Pivots can be relocated to suit the tractor. WARNING: Note the weight of the sprayer. Generally it is recommended to: 1.
Page 7 For the EC-operating unit the tractor circuit should have a 8 Amp fuse and for the D.A.H. a 16 Amp fuse. Use the HARDI Electric distri- bution box (No. 817925) if the tractor has a doubtful power supply. Rear lights (if fitted) Connect plug for rear lights to the tractors 7-poled socket and check that rear lights, stop lights and turning indicators function.
Page 8: Operating Instructions
To ensure long life of the transmis- sion shaft, try to avoid working angles greater than 15°. It is important for the personal safety of the operator that the transmission shaft is intact. The protection guards must cover the whole shaft.
Page 9 First set the tractor’s hydraulic remote control lever in position for correct direc- tion of oil flow. If the boom starts to rise either switch the hydraulic hoses around or set the control lever in the opposite position. Boom manoeuvering is as follows. A.
Page 10 3. Push switch B upward to unfold the inner sections. 4. Push switch A and C upward to unfold outer sections. 5. Push switch D and E downward to lower right and left sections. 6. Push switch F downward to lower the boom to correct height above crop or ground level.
Page 11: Adjustment Of The Controls
4 restrictors are supplied. Use the green one (largest orifice A) first. The hose N is unscrewed at the Self-Cleaning Filter, the restrictor is put in the hose and the hose is mounted again. If the required working pressure cannot be obtained, the restrictor is too large.
Page 12 EC remote control box A. Operating switch for on-off valve V. Operating switch for distribution valves C. Pressure regulation switch (to lower) D. Pressure regulation switch (to raise) 1. Choose the correct nozzle size by turning the TRIPLET nozzle bodies to the suitable nozzle for the spray purpose. Make sure that all nozzles are the same type and capacity.
Page 13 10.Adjust the other sections of the distribution valve in the same way. NOTE: HEREAFTER ADJUSTMENT OF PRESSURE EQUALIZATION WILL ONLY BE NEEDED IF YOU CHANGE TO NOZZLES WITH OTHER CAPACITIES. 11.Operating the control unit while driving: In order to close the entire boom switch on-off A to off position. This returns the pump output to the tank through the return system.
Page 14: Maintenance
If draining residues, e.g. liquid fertilizer into a reservoir, a snap-coupler with hose can rapidly be connected to the drain valve and the liquid safely drained. Spray Technique - see separate book. Optional Extras - see separate books. Maintenance In order to derive full benefit from the sprayer for many years the following few but important rules should be kept: Cleaning the sprayer Guidelines...
Page 15 It is sometimes necessary to leave spray liquid in the tank for short periods, eg. overnight, or until the weather becomes suitable for spraying again. Unauthorized persons and animals must not have access to the sprayer under these circumstances. If the product applied is corrosive, it is recommended to coat all metal parts of the sprayer before and after use with a suitable rust inhibitor.
Page 16 NOTE: If a cleaning procedure is given on the chemical label, follow it closely. 7. Start the pump and operate all controls enabling the liquid to come in contact with all the components. Leave the distribution valves until last. Some detergents and deactivating agents work best if left in the tank for a short period.
Page 17: Lubrication
The main filter protecting sprayer compo- nents is the suction filter at the top of the tank. Check it regularly. Ensure the O-ring on filter housing is in good condition and lubricated. Lubrication Recommended lubrication is shown in following tables. Use ball bearing grease (lithium grease No.2).
Page 21: Re-Adjustment Of The Boom
Re-adjustment of the Boom After having used the sprayer for some days the boom should be adjusted according to the following instructions. NOTE:Tractor and sprayer must be on level ground. Sprayer must be lubricated. (see section “Lubrication”). WARNING NOBODY MUST STAND UNDER THE BOOM WHILST ADJUST- MENT IS TAKING PLACE.
Page 22 Transport position The boom and transport brackets are to be adjusted so that boom movement is prevented when in transport. 1. Fold the outer sections and then the inner sections until the folding rams are at minimum length and carefully place the boom in the transport brackets.
Page 23 Linear adjustment of outer sections NOTE: The following is best done without pres- sure in the hydraulic rams. 1. Unfold the boom. 2. Loosen counter nut O and adjust the length of the rod until the outer and inner sections are parallel.
Page 24 Adjustment of inner and intermediate sections (24 m) 1. Unfold the boom. 2. Check that the ram rod is fully withdrawn. Adjust rigging screw if not so. 3. Midway on the wire of the inner section, check the tension. A 10 kg force the wire should move a maximum of 3 mm.
Page 25 6. Midway on the wire of the inner section, check the tension. A 10 kg force the wire should move a maximum of 3 mm. Adjust rigging screw if necessary. 7. Midway on the wire of the intermediate section, check the tension. A 10 kg force the wire should move a maximum of 20 mm.
Page 26: Changing Of Valves And Diaphragms
Changing of valves and diaphragms Valves Remove valve cover 1. Before changing the valves 2 note the orientation of the valves so that they are replaced cor- rectly. Important: Note valve with white flap 2A is placed in the valve opening shown.
Page 27: Changing Of Ball Seat In Operating Unit
Changing of ball seat in operating unit If problems with on/off valve occurs (e.g. dripping nozzles when on/off valve is closed), the ball and ball seat should be checked. Remove the 2 bolts fixing the on/off- pressure valve unit to the bracket, unscrew the union nut A and pull the on/off-pressure...
Page 28: Off-Season Storage
Nozzle tubes and fittings Poor seals are usually caused by; • missing O-rings or gaskets • damaged or incorrectly seated O-rings • dry or deformed O-rings or gaskets • foreign bodies Therefore, in case of leaks: DO NOT overtighten. Disassemble, check condition and position of O-ring or gasket, clean lubricate and reas- semble.
Page 29: Operational Problems
Tank Check that no chemical residues are left from the last spraying. Chemi- cal residues must not be left in the tank for a long time. It will reduce the life of the tank. See section on Cleaning the sprayer. Operating unit When the sprayer is put away the control box and the multiplug must be protected against moisture and dirt.
Page 30 Therefore ALWAYS check: 1. Suction, Self-Cleaning, pressure and nozzle filters are clean. 2. Hoses for leaks and cracks, paying particular attention to suction hoses. 3. Gaskets and O-rings are present and in good condition. 4. Pressure gauge is in good working order. Correct dosage de- pends on it.
Page 31 Pressure Nozzles worn. Check flow rate and replace nozzles dropping. if it exceeds 10%. Tank is airtight. Check vent is clear. Sucking air towards Excessive agitation, turn off. end of tank load. Returns inside tank need relocation. Pressure Clean all filters. Pressure filters increasing beginning to clog.
Page 32 The problem may be due to a blown fuse. One spare fuse is located inside the junction box. Fuse type T 10 A 250 V HARDI ref. no. 261272...
Page 33: Technical Specifications
The fuses are placed in the control box and are marked according to functions. Fuses 7 and 8 are spare fuses. Fuse type T 500 mA HARDI ref. no. 261125 Technical specifications Measure and weight Tank Spraying Measure Weight a ×...
Page 34 Power consumption and capacity r/min 361/ l/min l/min l/min kW l/min l/min 0,92 127 1,33 1,56 1,69 189 1,85 1,49 123 1,93 2,38 2,63 183 2,98 2,22 120 2,89 3,69 4,02 180 4,74 3,03 119 3,92 4,90 5,40 177 6,15 Rotation per min.
Page 35 Electric and hydraulic diagram Boom raise/lower...
Page 36 Electric and hydraulic diagram Distribution box...
Page 37 Electric and hydraulic diagram hydraulic system...
Page 38 Pictorial symbols EC Declaration of Conformity Description Function Connection Warning Operation Service/adjustment Liquid flow Pressure Cleaning Lubrication Winter / off-season storage Operational problems Technical specifications...
Page 39: Assembly
Assembly Preassembly information The sprayer is supplied ex-works in shipping packages (SP). Number of SP’s per sprayer varies depending on model. As this covers all LZ models, please note the fittings covering exactly your model. NOTE: Removal of the plastic bag covering the tank is easiest done before assembly.
Page 40 1. Mount the boxes on the holder delivered or a suitable bracket for the purpose. WARNING: The screws for mounting the D.A.H. control box must not be too long (max. 12 mm) as they may cause a short circuit! 2. Mount the boom wings. A crane or forklift will be needed. It will help to fully extend the tilt rams so the boom wings do not have to be raised as much.
Page 41 3. Nozzle tubes are supplied with one lock nozzle saddle per tube A. The rest can slide lengthwise B allowing for extension and contrac- tion. 4. Tubes and hoses are connected. Fit tubes using synthetic nut. Press down 1, turn 2. Do not over-tighten.
Page 42 12 m LHZ 15 m LHZ 16 m LHZ 18 m LHZ 20 m LHZ 21 m LHZ 24 m LHZ...
Page 43 5. Secure feed and connecting hoses with plastic straps (approx. every 30 cm). Check that the hoses do not catch or pinch during folding and unfolding.
Page 45 B104...
Page 46 B105...
Page 47 B205...
Page 48 C208...
Page 49 C209...
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Page 51 D300...
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Page 56 D904...
Page 58 E109...
Page 59 HARDI INTERNATIONAL HARDI HELGESHØJ ALLÉ 38 • DK 2630 TAASTRUP • DENMARK 0396 EN 1152 / ISO 5674 POS. 1000 K604...
Page 60 Notes:...

Hardi LZ Series Instruction Book

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