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Original Instructions Manual

Vaderstad NZ Aggressive NZA 600 Series, Original Instructions Manual

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NZA 500-1000 /T/ST

11.07.2011
ver.2

35

4

Maintenance and service

4.1

Securing the implement for service

Figure 4.1

Never work under the implement when carrying out service or maintenance without ensuring that
the machine is properly supported on stands or the like on a firm and level surface. Also block the
lifting ram of the centre section as explained below.

“Figure 4.2” shows the recommended placement of the trestles.

Figure 4.2

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Summary of Contents for NZ Aggressive NZA 600 Series

Page 1: ...Original instructions Instructions 902616 en 13 12 2012 ver 1 NZ Aggressive series NZA 600 1000 Manufacturing No 24732 NZA 500ST NZA 600T...

Page 2: ...2 13 12 2012 ver 1...

Page 3: ...ons 22 3 4 Adjusting hose length 24 3 5 Adjusting the reverse action valve 24 3 6 Adjusting the turnbuckle 25 3 7 Setting the working depth Master and slave systems NZA 600 1000 26 3 8 Setting the wor...

Page 4: ...4 13 12 2012 ver 1...

Page 5: ...The ample wheel fitting ensures excellent bearing capacity The front Crossboard crushes clods and levels the field The harrow can be fitted with an optional rear Crossboard for further working of the...

Page 6: ...r have been manufactured in accordance with the Council Directive 2006 42 EC The above declaration covers the following machines NZA 500ST NZA 600 NZA 600T NZA 700 NZA 800 NZA 900 och NZA 1000 manufac...

Page 7: ...and park ing To ensure reliable operation of the automatic lock grease the locking bars periodically C Warning tape pay attention to the danger of crushing and impact injuries Also used on safety comp...

Page 8: ...hine implement and the fitted tyres are dimensioned for a maximum speed of 30 km h on a good country road The owner driver has sole responsibility for observing local traffic regulations when driving...

Page 9: ...ring No 1 5 2 CE plate Figure 1 6 C Working width D Transport width E Serialnumber CE F Weight kg including following harrow and front and rear Crossboards For the NZA 500ST 600 T the weight indicatio...

Page 10: ...when ordering spare parts and in case of serv icing or warranty claims C Year of manufacture D Working width E Transport width F Tare weight of the basic machine G Maximum total weight H Maximum perm...

Page 11: ...ing 3 Lower the machine so that the cultivator tines and transport wheels rest on the ground Lock the centre section s lifting ram by using the setting device 4 Secure the machine s transport wheels t...

Page 12: ...Safety rules 12 11 07 2011 ver 2...

Page 13: ...g positions are marked with lifting symbols Carefully unload the draw bar following harrow section and when applicable the Crossboard sections and related parallel rods from the frame The following ha...

Page 14: ...the draw bar on the centre section using the draw bar bolts Connect the post on the draw bar with the parallel rod on the turn buckle Do not tighten the castle nut of the parallel rod fully leave a sm...

Page 15: ...sections option Figure 2 4 Fit the front bolt first following which the other mounting plates can be bolted together It is extremely important to retighten all bolts after about five hours of use Tab...

Page 16: ...e Figure 2 5 Applies to NZA 500 1000 Upon delivery from the factory the reversing valve spring of the harrow may in some cases not be installed Fit the spring as shown in the figure and lock it in pla...

Page 17: ...and rear Crossboards Fit the rods in the rear hole on the rear lifting arms see position B The rods must be parallel in the longitudinal direction of the harrow The grease nipple next to the crank mus...

Page 18: ...at the screws act as joints and thus must not be tightened When assembling the extensions see Figur 2 9 2 8 Fitting track eradicators option The track eradicators should be fitted on the front beam or...

Page 19: ...0 T ST 11 07 2011 ver 2 19 2 9 Fitting the connecting drawbar option Figure 2 12 NOTE When hitching an implement to the draw bar make sure the original cotter A or another cotter with the same diamete...

Page 20: ...f the wing folding ram from the reversing valve and connect the T pipe A to the nipple Fit the ram hoses to the nipple facing to the front Fit the connecting draw bar hoses B to the nipple facing up 2...

Page 21: ...hoses are correctly connected to the hydraulic couplings on the tractor The hoses are marked with colours From mftg no 24732 the following markings apply NZA 500 600 Hoses with yellow markings Liftin...

Page 22: ...for wing folding and Crossboard operation In the raised position the circuit controls wing folding while in the lowered position the circuit controls Crossboard operation A reversing valve ensures th...

Page 23: ...w is in the work position Always check that the catches have been locked prior to transport or parking 3 3 4 Securing the wing section prior to transport To prevent involuntary unfolding of the wings...

Page 24: ...e hydraulics between the wing folding action and Crossboard When the harrow is lowered into the work position the hydraulics are engaged to the Crossboard when the harrow is raised onto its wheels the...

Page 25: ...lel with the ground while driving Adjust longitudinal inclination of the centre section by adjusting the parallel adjustment screw A The front is lowered when turning the parallel adjustment screw clo...

Page 26: ...dure for a few seconds when hitching the seed drill to the tractor before adjusting the seed drill after extending and a few times during the working day NOTE Do not screw on any fitting in order to r...

Page 27: ...nsure first class results Make a habit of bleeding the hydraulic system each time the cultivator is hitched to the tractor be fore you start using it and also a few times during the day when you are u...

Page 28: ...help of the memory ram the machine returns to its previous work ing depth 3 8 2 Setting the scale Position the machine on a flat surface and adjust the height so that pins and wheels are both in the...

Page 29: ...es E Then tighten the bout marker The bout marker has now been adjusted and should not require any further adjustment in the future 3 9 1 Changing the working depth Raise the cultivator and move the a...

Page 30: ...hydraulic ram raises the Crossboard and vice versa Do not screw out the piston rod end more than 20 mm On the ram on which the depth scale is mounted the piston rod should not be screwed out more than...

Page 31: ...n of the front and rear Crossboards towards each other can be adjusted using the cranks on the rods Adjust using the cranks until the rear Crossboard has the same angle behind the entire work width of...

Page 32: ...locking devices on the wings are set in place Close the cock on the wing folding hydraulics See Figure 4 5 or Raise the harrow from the ground until the Crossboard tines do not touch the ground Fit th...

Page 33: ...NZA 500 1000 T ST 11 07 2011 ver 2 33 3 11 4 Quick Change System accessories does not apply to model ST and T Figur 3 24 Single Knife Double Knife...

Page 34: ...hanism to prevent damage on the implement when reversing The working depth and angle of the tines can be easily adjusted The harrow should be in the raised position when making this adjustment Adjust...

Page 35: ...ever work under the implement when carrying out service or maintenance without ensuring that the machine is properly supported on stands or the like on a firm and level surface Also block the lifting...

Page 36: ...ocking pins Check that the locking pins are not defective Replace the pins if they are found to be defec tive When for example replacing the tines on the wings with the implement folded down the cock...

Page 37: ...ally require any maintenance but check that hoses and cou plings have not been damaged To preserve the high quality of the cultivator always use genuine V derstad spare parts 4 3 The stretching screw...

Page 38: ...ies to NZA 900 1000 A Release the pressure in the hydraulic hoses B Detach the hydraulic hoses connected to the valve block C Unscrew the valve block from the piston support D Dismantle the entire val...

Page 39: ...season and at regular intervals after that regelbundet 1 Lift the wheel off the ground 2 Feel the wheel the wheel must be tensioned if you can you feel any play 3 Remove the hub cap 4 Slacken the ten...

Page 40: ...2 A Loosen and screw out the piston rod guide A using the caliper spanner B B Withdraw the piston rod The seal can now be changed NOTE Take great care to ensure that the seals face the right way round...

Page 41: ...e action valve on page 24 4 9 1 If the wing sections change relative to the centre section D Check the couplings for leakage E Check that there is no air in the hydraulic system F If necessary change...

Page 42: ...s When the first ram has been filled with fluid the fluid is pressed further via an overbleed valve to the other ram which is then filled with fluid The fluid is then pressed further to the third ram...

Page 43: ...NZA 500 1000 T ST 11 07 2011 ver 2 43 4 12 Lubrication points Figure 4 13 x 2 x 2 x 2 x 3 x 2 x 2 NZA 500 600...

Page 44: ...Maintenance and service 44 11 07 2011 ver 2 Figure 4 14 x 4 x 4 x 1 x 3 x 2 NZA 700 1000...

Page 45: ...NZA 500 1000 T ST 11 07 2011 ver 2 45 5 Attachment 5 1 Hydraulic schematic diagram Figure 5 1 NZA 500 ST Figure 5 2 NZA 600 600 T...

Page 46: ...Attachment 46 11 07 2011 ver 2 Figure 5 3 NZA 700 800 Figure 5 4 NZA 900 1000...

Page 47: ...ort height m 2 45 2 95 2 95 Weight kg 2050 2880 2400 Number of harrow tines 65 79 79 Power requirement kW approx 65 95 75 Mounted implement weight of tractor kg 160 180 180 Table 5 2 Machine NZA 700 N...

Page 48: ...Attachment 48 11 07 2011 ver 2...

Page 49: ......

Page 50: ...590 21 V DERSTAD S 590 21 V DERSTAD SWEDEN Telefon 0142 820 00 Telephone 46 142 820 00 Telefax 0142 820 10 Telefax 46 142 820 10 www vaderstad com...

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