Vaderstad NZ Aggressive NZA 600 Series User manual

Original instructions
Instructions
902616-en
13.12.2012
ver. 1
NZ Aggressive
series
NZA 600-1000
Manufacturing No.24732-
NZA 500ST
NZA 600T

2 13.12.2012
ver. 1

NZA 500-1000 /S/T/ST
13.12.2012
ver.1 3
1 Safety rules
1.1 Before using the cultivator .................................................................... 7
1.2 Warning decals ................................................................................... 7
1.3 Other safety rules ................................................................................ 8
1.4 Location of warning decals on the achine ............................................. 8
1.5 Data plates ......................................................................................... 9
1.6 Moving the achine when not hitched to a tractor ................................. 11
2 Assembly Instructions
2.1 Lifting and unloading ......................................................................... 13
2.2 Mounting the tines ............................................................................. 13
2.3 Fitting the drawbar ............................................................................ 14
2.4 Fitting supple entary sections (option) ................................................ 15
2.5 Fitting the spring for the reverse-action valve ........................................ 16
2.6 Fitting the rear Crossboard (option) ..................................................... 17
2.7 Fitting the following harrow ................................................................. 18
2.8 Fitting track eradicators (option) ......................................................... 18
2.9 Fitting the connecting drawbar (option) ................................................ 19
3 Instructions and adjustments
3.1 Hitching the cultivator ........................................................................ 21
3.2 Verifying the drawbar eye of the i ple ent .......................................... 22
3.3 Switching between transport and work positions .................................... 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 syste s, NZA 600-1000 ....... 26
3.8 Setting the working depth and scale. ................................................... 28
3.9 Setting the working depth, NZA 500 ST and 600T .................................. 29
3.10 Adjusting the wing section stop screws ................................................. 29
3.11 Crossboard ....................................................................................... 30
3.12 Adjusting the following harrow ............................................................ 34
Maintenance and service
4.1 Securing the i ple ent for service ...................................................... 35
4.2 No achine is better than the service it receives! .................................. 37
4.3 The stretching screw of the turn buckle ................................................ 37
4.4 Unsynchronized wing folding ............................................................... 38
4.5 Valve block cleaning .......................................................................... 38
4.6 Check and adjust ent of play in wheel bearings .................................... 39
4.7 Wheel changing ................................................................................. 40
4.8 Changing the ra seals ...................................................................... 40
4.9 Troubleshooting the aster and slave syste ....................................... 41
4.10 Bleeding the hydraulic syste for depth control ..................................... 41
4.11 Bleeding the hydraulic syste for the Crossboard .................................. 42
4.12 Lubrication points .............................................................................. 43
5 Attachment
5.1 Hydraulic sche atic diagra .............................................................. 45
5.2 Technical Data .................................................................................. 47

4 13.12.2012
ver. 1

NZA 500-1000 /T/ST
11.07.2011
ver.2 5
INTRODUCTION
The NZ Aggressive is a rugged sowing bed harrow designed for efficient, heavy-duty
working of the soil.
The harrow has a tine pitch of 7.5 cm distributed on 5 axles, making it very accommoda-
ting. 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 field. The Crossboard at the rear is
especially suited for working hard soils.
The NZA also has a following harrow which levels and pulverises the soil.
Switching between the work and transport positions is done using the hydraulic installa-
tion.

6 11.07.2011
ver. 2
EC DECLARATION OF CONFORMITY FOR THE MACHINE
in accordance with the EU Machinery Directive 2006/42/EC
Väderstad-Verken AB, P.O. Box 85, SE-590 21 Väderstad, SWEDEN
hereby confirms that the cultivation tools hereunder 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
manufacturing no. 24732-30000.
Väderstad 2010-06-18
Lars-Erik Axelsson
Legal requirements coordinator
Väderstad-Verken AB
Box 85, 590 21 Väderstad
The undersigned is also authorised to compile technical documentation for the above
machines.

NZA 500-1000 /T/ST
11.07.2011
ver.2 7
1 Safety rules
1.1 Before using the cultivator
Figure 1.1
!Read the instructions carefully and make sure you understand them.
!Always pay extra attention to the instructions or diagram when you see this symbol!
!Learn to handle the implement carefully and correctly! The implement could be dangerous in
the wrong hands and if used without taking proper care.
1.2 Warning decals
Figure 1.2
A Read the instructions carefully and make sure you understand them.
B Always make sure that the entire working area and folding area of the cultivator are unobstruct-
ed. Never walk under a suspended section.
Always check that the automatic catches have engaged in connection with transport 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
components.
D Never work under the implement when carrying out service or maintenance without ensuring
that it is properly supported on stands or standing on some other firm surface. Block the lifting
ram on the centre section using the yellow locking device (applies to NZA 600-1000) or the
stopper (applies to NZA 500 ST). Also refer to ”4.1 Securing the implement for service” on
page 35.
E Warning for excessive transport height, particularly NZA 1000. See ”5.2 Technical Data” on
page 47.
Beware of overhead power lines, viaducts, portals, trees etc. Always check the maximum per-
mitted transport height.
F Do not stand between the tractor and the implement when the tractor is reversed and the im-
plement hitched.
B
A
C D E
F

Safety rules
8 11.07.2011
ver. 2
1.3 Other safety rules
!Always keep the reversing valve of the wing folding hydraulic ram closed during transport on
the road or whenever persons are in close proximity to a folded up wing section, e.g. when re-
placing tines. Remove the rod D and move the lever A to the front. See “Figure 1.3”, position 0.
!When servicing or repairing the hydraulic system, the wings should be folded down and the
harrow should be lowered onto level, solid ground! Collect any spilled oil.
!When transporting the implement on public roads, show sound judgment and drive carefully.
Prior to transport on public roads in wet conditions, remove dirt that may fall off from both the
tractor and the harrow.
!This machine/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
on a public road.
!Prior to making the hydraulic connections, make sure the male couplings on the harrow and
the female couplings on the tractor are clean and free from dirt.
!To maintain the high level of quality and operational safety of the implement, use only Väder-
stad genuine spare parts. The warranty and any complaint commitments will become void if
other than genuine parts are used.
!Any welding work on the machine/implement should hold professional standard. Incorrect
welding may result in serious injuries or possibly fatal injuries. If in doubt, contact a profes-
sional welding service for proper instructions.
1. Location of warning decals on the machine
Figure 1.4
Figure 1.3
D
NZA 500-1000
A
B
C
D
E
F

NZA 500-1000 /T/ST
11.07.2011
ver.2 9
1.5 Data plates
!The machine is equipped with either a combination of signs 1.5.1, Serial number plate, and
1.5.2, CE plate, or 1.5.3, Machine label.
1.5.1 Serial number plate
Figure 1.5
A Type No.
B Manufacturing 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 indications include the following harrow and the front Crossboard. For the
NZA -6 the weight indications include the following harrow and the front Crossboard. For
more information, see ”5.2 Technical Data” on page 47.
G Year of manufacture
AB
CE F G
D

Safety rules
10 11.07.2011
ver. 2
1.5.3 Machine label
Figure 1.7
A Machine type
B Manufacturing serial number
(Always state the serial number of your machine 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 permitted payload
I Maximum permitted axle loading
J Maximum coupling load (at the tractor hitch)
!Also refer to ”5.2 Technical Data” on page 47.
A
B
D
EI
J
G
C
F
H

NZA 500-1000 /T/ST
11.07.2011
ver.2 11
1.6 Moving the machine when not hitched to a tractor
NOTE! If the machine must be moved when not hitched to a tractor,it must be transported on a ma-
chine trailer or lorry flatbed!
The machine must be rolled onto and off the transport vehicle using a tractor. Lifting with a crane
is prohibited!
1 Set the machine to the transport position; see ”3.3.2 Switching to the transport position” on
page 22.
2 Reverse the machine lengthwise onto the trailer or flatbed. If using a flatbed, a ramp, loading
pier or similar will be required. Take great care. Check that no machine parts are damaged
during loading.
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 to prevent rolling using chocks or similar.
5 Unhitch the tractor from the machine.
6 Secure the wing sections ready for transport using tension straps (A) or similar; see “Figure
1.8”.
7 Secure the machine using suitable lashing equipment in accordance with applicable rules. The
lashing equipment must be attached to the machine at the locations indicated by the decals; see
“Figure 1.8”.
!For information on the machine's dimensions and weight, see ”5.2 Technical Data” on page
47!
!Always make sure that you comply with applicable national regulations concerning transport
dimensions, requirements for escort vehicles or similar!
Figure 1.8
A
A

Safety rules
12 11.07.2011
ver. 2

NZA 500-1000 /T/ST
11.07.2011
ver.2 13
2 Assembly Instructions
Never work under the implement during loading, unloading or installation work. Pay close atten-
tion to safety! The implement is very heavy. Only use lifting devices that have sufficient lifting
capacity. For weight indications, see ”5.2 Technical Data” on page 47.
On delivery, the implement may be incompletely assembled in a state that varies with the method
of transport, etc. Use the following assembly instructions as applicable.
2.1 Lifting and unloading
Figure 2.1
Lift the harrow from the front using pallet forks placed under the frame. The lifting 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 harrow thills are packed on a pal-
let.
2.2 Mounting the tines
Figure 2.2
Prior to delivery and to minimise the transport dimensions, all tines on the fifth tine shaft have
been dismantled. To facilitate easy loading and unloading two tines on the third tine shaft have
also been dismantled (this does not apply to the NZA 900 and 1000). The tines are supplied
packed on the frame. Assemble the tines at the indicated positions. The tine brackets should be on
the right of the indications.
NOTE! Unless the tines are assembled in the correct positions, they may cause damage to the
wheels during transport on the road!

Assembly Instructions
14 11.07.2011
ver. 2
2.3 Fitting the drawbar
Figure 2.3
Fit 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 small amount of play to allow later adjustment.
Fit the hose holder on the draw-bar.

NZA 500-1000 /T/ST
11.07.2011
ver.2 15
2. Fitting supplementary 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.
Table 2.1
NZA 800 NZA 700 + 0,5 m + 0,5 m
NZA 1000 NZA 900 + 0,5 m + 0,5 m

Assembly Instructions
16 11.07.2011
ver. 2
2.5 Fitting the spring for the reverse-action valve
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 place with the pins.
For valve adjustment, see ”3.5 Adjusting the reverse-action valve” on page 24.

NZA 500-1000 /T/ST
11.07.2011
ver.2 17
2.6 Fitting the rear Crossboard (option)
Figure 2.6
The Crossboard sections should be screwed onto the brackets on the harrow frame. They can be
fitted at two different height positions. The figure shows the standard fitting.
Figure 2.7
Fit the parallel rods between the lifting arms on the front 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 must point upwards.
Fit the rods on the correct side of the lifting arms to avoid that the rods touch the hoses and con-
nectors on the Crossboard hydraulic rams. See position A. Note that the screws act as a joint and
as such must not be tightened. Lock the screws using lock nuts on the opposite side of the lifting
arms.
A
B
NZA 500-600

Assembly Instructions
18 11.07.2011
ver. 2
2.7 Fitting the following harrow
The following harrow thills should be screwed into the brackets on the harrow frame or in the
brackets on the rear Crossboard. They can be fitted at two different height positions. In the stand-
ard configuration, the thills should be set in the lower positions. See the figure.
The following harrow sections are hitched onto the thills and locked in place with the screws A.
Note that 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 the draw-bar as shown in “Figure 2.10”.
Lateral positioning depends on the tread of the tractor.
NOTE! When folding up the wing section on a harrow with track eradicators on both the centre and
wing sections, it is very likely that the track eradicators will collide if set higher than the harrow
tines. Always make sure the track eradicators do not come into contact with each other when fold-
ing up the harrow.
Figur 2.8 Figur 2.9
Figure 2.10 Figure 2.11
A

NZA 500-1000 /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 diameter is used!
A

Assembly Instructions
20 11.07.2011
ver. 2
2.9.1 Fitting the draw-bar hoses onto the NZA 500-600
Figure 2.13
Remove the hydraulic hoses of 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.
2.9.2 Fitting the draw-bar hoses onto the NZA 700-800
Figure 2.14
2.9.3 Fitting the draw-bar hoses onto the NZA 900-1000
Figure 2.15
A
B