Rapid
series
RDA 400S
Maunfacturing No. 14800-
Instructions
900285-en
27.06.2011
ver. 2
Original instructions
2 27.06.2011
ver. 2
RDA 400S
Se instruktionsbok
See instructions
Siehe Betriebsanleitung
Voir manuel d’utilisation
0,49
Solrosor
Sunflowers
Sonnen-
blume
Lin
Klöver
Raps
0,76
Flax
Flachs
Lin
0,77
Clover
Klee
Trèfle
0,65
Rape
Raps
Colza
3-4
1,5-3
0,36
Gräs
Grass
Gras
Ray-grass
Majs
0,79
Maize
Mais
Maïs
5-20
21-70
10-60
61-100
5-24
25-40
41-60
4-10
11-20
21-30
-
2-10
11-20
21-45
30-100
-
101-300
301-500
Vicker
Lupiner
Ärtor
Bönor
Havre
Korn
Råg
Vete
0,83
Vetch
Vicken
Vesces
0,76
Lupins
Lupinen
Luping
0,80
Peas
Erbsen
Pois
0,85
Beans
Bohnen
Fèves
0,50
Oats
Hafer
Avoine
0,67
Barley
Gerste
Orge
0,72
Rye
Roggen
Seigle
0,77
Wheat
Weizen
Blé
Kg/ha
30-100
101-300
301-500
30-100
101-300
301-500
30-100
101-300
301-500
30-100
101-300
301-500
30-100
101-200
201-350
30-100
101-300
301-500
30-100
101-300
301-500
30-100
101-300
301-500
Table, Tabelle, Tableau
RDA 400-800S No. 14800-
Kg/l
Scale
2
6
15
30
80
140
3
4
1 Safety regulations
1.1 Before using the drill ............................................................................ 9
1.2 Warning decals ................................................................................. 10
1.3 Location of warning decals on the machine ........................................... 11
1.4 Other safety precautions .................................................................... 12
1.5 Data plates ....................................................................................... 13
1.6 Moving the machine when not hitched to a tractor ................................. 15
2 Installation instructions
2.1 Installation of the Control Station on the tractor .................................... 17
3 Instructions and settings
3.1 Tractor ............................................................................................. 18
3.2 Hitching and unhitching the seed drill without an intermediate packer ...... 19
3.3 Hitching and unhitching the seed drill with an intermediate packer ........... 21
3.4 Connecting the hydraulic hoses and electrical cables .............................. 22
3.5 Hose length and hose holder adjustment .............................................. 24
3.6 Wheel retraction mechanism (only machines with the hydraulic depth
adjustment option) ............................................................................ 25
3.7 Changing between transport position and working position ...................... 26
3.8 Horizontal alignment .......................................................................... 28
3.9 Mechanical adjustment of sowing depth ................................................ 30
3.10 Hydraulic adjustment of sowing depth (option 15582-) ........................... 31
3.11 Adjusting the wing sections ................................................................ 34
3.12 Adjusting the changeover valve ........................................................... 35
3.13 Adjustment of the pre-implements ....................................................... 36
3.14 Adjusting the following harrow ............................................................ 38
3.15 Adjusting Low lift height ..................................................................... 39
3.16 Locking the lifting rams during service .................................................. 39
3.17 Adjusting the seed coulters ................................................................. 40
3.18 Scraper ............................................................................................ 42
3.19 Bout marker adjustment ..................................................................... 43
3.20 Track eradicators, tines (option) .......................................................... 43
3.21 Track eradicators, System Disc ............................................................ 44
3.22 Wing packers (option) ........................................................................ 44
3.23 Setting the radar ............................................................................... 45
3.24 Adjusting the air-flow ......................................................................... 46
3.25 Seed box setting ............................................................................... 47
3.26 Calibration ........................................................................................ 48
3.27 Prior to filling the hopper .................................................................... 53
3.28 Emptying the seed hopper .................................................................. 54
3.29 Operation test ................................................................................... 55
3.30 Control station .................................................................................. 56
3.31 Interactive Depth Control function, IDC (option 15582-) ......................... 67
3.32 Tramlining ........................................................................................ 71
3.33 Adjusting the pre-emergence bout marker ............................................ 75
3.34 Hydraulic brakes (accessories) ............................................................ 76
3.35 Maintenance of hydraulic brake system ................................................ 78
3.36 Pneumatic brakes (accessories) ........................................................... 79
3.37 Maintenance of pneumatic brake system .............................................. 82
RDA 400S
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ver.2 5
4 Advice on seeding and driving instructions
4.1 Sowing depth .................................................................................... 84
4.2 Checking the seed feed ...................................................................... 85
4.3 Sowing headlands ............................................................................. 86
4.4 Engaging the drill .............................................................................. 86
4.5 Intermediate packer .......................................................................... 87
4.6 Tramlining ........................................................................................ 88
4.7 Bout markers .................................................................................... 88
4.8 Obstructions ..................................................................................... 88
4.9 Turning with Low lift .......................................................................... 88
5 Maintenance and service
5.1 General maintenance ......................................................................... 92
5.2 Inspecting the drill's towing eyelet ....................................................... 93
5.3 Seed feed housing and rape brush ....................................................... 94
5.4 Locking device .................................................................................. 94
5.5 Cleaning ........................................................................................... 95
5.6 Storing the drill ................................................................................. 96
5.7 Lubrication points .............................................................................. 98
5.8 Service cover .................................................................................. 100
5.9 Changing discs ................................................................................ 100
5.10 Changing disc bearings .................................................................... 101
5.11 Changing seed coulter mounting bolts ................................................ 101
5.12 Changing wheels ............................................................................. 102
5.13 Changing the seals on the hydraulic rams ........................................... 102
5.14 Changing the valve seals on the lifting ram ......................................... 103
5.15 Repairing and replacing seed hoses .................................................... 104
5.16 Replacing the fan revolution sensor .................................................... 105
5.17 Hydraulic drive transmission ............................................................. 106
5.18 Replacing the oil filter in the hydraulic unit .......................................... 107
5.19 Intermediate packer (option) ............................................................ 108
6 Troubleshooting
6.1 General information on troubleshooting .............................................. 109
6.2 Troubleshooting chart ...................................................................... 113
6.3 Alarm list ....................................................................................... 119
7 Appendices
7.1 Sowing table ................................................................................... 122
7.2 Hydraulic diagram ........................................................................... 124
7.3 Electrical system ............................................................................. 128
7.4 Technical data ................................................................................. 135
6 27.06.2011
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RDA 400S
INTRODUCTION
Väderstad Rapid A 400 S is a high-capacity cultivation drill. The Rapid drills can be used
under a large variety of conditions, from "direct drilling" to sowing straight after the
plough. This versatility is made possible by the drill's coulter system design and its unique
depth control system, amongst other features.
The machine can be fitted with different types of pre-implements to suit varying farmland
conditions.
IMPORTANT!
This instruction manual is based on experience and results obtained during development of
the Rapid series of drills. Hints and guidelines are to be regarded as general advice, entailing no responsibility whatsoever on the part of Väderstad-Verken AB and/or its representative. All responsibility for usage, road transport, maintenance and repair etc. of the drill
rests with the owner/driver.
Local conditions affecting crop sequence, soil type, climate etc. may require procedures
different to those mentioned in this manual.
The owner/operator shall bear full responsibility for correct use of the drill at any given
time.
Väderstad drills have passed quality assurance tests and operational tests prior to delivery.
The user/purchaser shall retain sole liability for ensuring that the equipment functions correctly when in use. In case of complaints, please refer to the “General delivery conditions
of the Väderstad group”.
27.06.2011
ver.2 7
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 drilling machines hereunder have been manufactured in accord-
ance with the Council Directives 2006/42/EC and 2004/108/EC.
The above declaration covers the following machines:
RDA 400S, manufacturing no. 14800-18000.
Väderstad 2010-06-18
Lars-Erik Axelsson
Legal requirements coordinator
Väderstad-Verken AB
Box 85, 590 221 Väderstad
The undersigned is also authorised to compile technical documentation for the above
machines.
8 27.06.2011
ver. 2
1 Safety regulations
1.1 Before using the drill
Figure 1.1
! Always pay extra attention to paragraphs or figures bearing the following symbol:
! Learn to handle the drill correctly and with care. The drill can be dangerous in inexperienced
or careless hands.
RDA 400S
27.06.2011
ver.2 9
Safety regulations
A
C D
B
H
E F
G
JI
K
L
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 seed drill are unobstructed. Never walk under a suspended section. Always check that the automatic catches have engaged in connection with transport and parking.
C
Warning tape, pay attention to the danger of crushing and impact injuries. Also used on safety
components.
D
Never work under the seed drill without ensuring that the machine is properly supported on
stands or is standing on some other firm surface. Secure the lifting ram and the push rod ram
(1, accessory) by means of the yellow locking device. See also ”3.16 Locking the lifting rams
during service” on page 39.
E
Always ensure that the working area of the bout markers is unobstructed. Bear in mind the danger of injury when folding or unforlding the bout markers or getting caught between the seed
drill and the bout markers when they are folded in.
NOTE!
The bout markers are always folded
in when the machine is raised, regardless of the indication on the control box. The marker arm
will always fold as the machine is lowered. Therefor always shut off the control box main
switch when the machine is not on the field. All settings will remain unchanged though the box
is shut off.
If the machine is parked and left resting only on the wheels and support leg, the bout markers
could start to slowly unfold due to internal overleakage in the hydraulic system. Make it a habit
to always park the machine on its wheels, discs and support leg and always block the bout
markers with the safety cotter pins.
F
Do not climb onto the wheels when the seed drill is parked as they can rotate.
G
Do not stand on the seed drill while it is in use.
H
Do not stand on the seed drill during front loading of seed.
10 27.06.2011
I
The ladder and platform of the drill are not designed for manual loading from small seed bags.
J
Do not stand on the upper grating of the seed hopper.
K
Do not stand between the tractor and the machine when reversing the tractor to hitch the drill.
L
Use ear defenders when adjacent to the running fan.
ver. 2
1.3 Location of warning decals on the machine
J
E
D
C
F
G,H,I,K
A,B,D,L
Figure 1.3
RDA 400S
27.06.2011
ver.2 11
Safety regulations
1.4 Other safety precautions
! Observe the greatest caution when transporting the seed drill on a public road. If the machine
has a full hopper, note that the towed weight is considerable and that the view to the rear is
greatly restricted. Check the adjustment of the tractor's rear-view mirrors. If the machine is to
be transported over a longer distance, be sure to block the lifting ram of the centre section with
the yellow mechanical locking device, see ”3.16 Locking the lifting rams during service” on
page 39. The owner/operator is solely responsible for transport of the seed drill on public
roads. Use the lights on the drill according to the local traffic regulations.
!
NOTE!
30 km/h, during transportation on the road.
! Make sure that at least 20% of the tractor's weight is resting on its front wheels when the drill
has been hitched and loaded. This will ensure full steering ability of the tractor train.
! When any repair work is carried out on the hydraulic system, the seed drill should be in the
lowered position and resting on a firm and level surface with the wing sections lowered!
! Never stand under the intermediate packer or drill if it is suspended and only secured with the
tractor's hydraulic lifting arms. Prior to any service on the intermediate packer, be sure to secure it properly with trestles, etc. on firm, level ground.
! Be sure to set the master cylinder stopper in such a way that the drill rests on both the wheels
and the discs when parked. Since the weight on the supporting leg is so high, the machine shall
not be parked on loose surface!
This machine/equipment together with its tyres is designed for a maximum speed of
! Always make sure that the seed drill's male couplings and the tractor's female couplings are
clean and free from impurities before connecting them together.
! Always use genuine Väderstad spare parts to maintain the quality and reliability of the seed
drill. If other brands of spare parts are used, all guarantee and claim commitments cease to be
valid.
! Regularly inspect the wear on the drill's towing eyelet. Replace the towing eyelet when it has
been worn down to the wear limit. See ”5.2 Inspecting the drill's towing eyelet” on page 93.
! 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
professional welding service for proper instructions.
! Never look straight into the optics of the radar when it is operating! There is a risk of permanent
damage to the eyesight! (Hydraulic feed output).
! When cleaning the drilling system or when servicing the transmission system on machines
with hydraulic feed output, the hydraulic flow to the fan and feed output driving mechanism
must always be shut off beforehand.
12 27.06.2011
ver. 2
1.5 Data plates
A
B
C
E F G
D
! 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 1.4
A
Type number
B
Manufacturing number. Always state the manufacturer number for your machine when ordering spare parts and in case of warranty claims.
1.5.2 CE plate
RDA 400S
Figure 1.5
C
Working width
D
Transport width
E
Serial (CE) number
F
Weight, total weight fully equipped and with maximum load. For more information, see ”7.4
Technical data” on page 135.
G
Year of manufacture
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Safety regulations
A
B
D
E
I
J
G
C
F
H
1.5.3 Machine label
Figure 1.6
A
Machine type
B
Manufacturing serial number
(Always state the serial number of your machine when ordering spare parts and in case of servicing 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 ”7.4 Technical data” on page 135.
14 27.06.2011
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RDA 400S
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 machine 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 ”3.7.2 Changing to transport position” on page
27.
2 Activate the wheel retraction function (Only applies to machines with hydraulic depth setting),
see ”3.6 Wheel retraction mechanism (only machines with the hydraulic depth adjustment
option)” on page 25.
3 Raise the pre-implement to the full lifting height.
4 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.
5 Lower the machine. Adjust the master cylinder's stop device and parking stay so that the
machine rests on the wheels, discs and support (or intermediate packer) in the lowered position.
Make sure that the machine's hydraulic system is depressurised.
6 Secure the machine's transport wheels to prevent rolling using chocks or similar.
7 Secure the tarpaulin using tension straps or similar.
8 Unhitch the tractor from the machine.
9 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 1.7”.
! For information on the machine's dimensions and weight, see ”7.4 Technical data” on page
135!
! Always make sure that you comply with applicable national regulations concerning transport
dimensions, requirements for escort vehicles or similar!
Figure 1.7
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Safety regulations
16 27.06.2011
ver. 2
2 Installation instructions
2.1 Installation of the Control Station on the tractor
Figure 2.1 Figure 2.2
1 Be sure to install the control box securely in the tractor cab. Place the control box within the
field of vision while looking in the travelling direction. Install the bracket as shown in the il-
lustration.
NOTE!
Check for hidden cables before drilling holes in the tractor cab.
RDA 400S
2 Connect the Control Station to the electrical socket on the tractor. If an electrical power outlet
is not available, extra wiring must be installed. Preferably use 6 mm² cable. Connect the cables:
Brown to positive (+) and blue to earth (-).
NOTE!
It is important to have good wiring connections, as a loose connection will prevent correct operation.
Do not use a cigarette lighter outlet,as the current consumption is up to 20 A.
Make sure that the connecting cable to the drill is not trapped under the rear window of the tractor
as this may cause damage. Use a hatch or a hole. Securely clamp the cable in the tractor cab. This
protects the Control Station from damage in case the connection cable has inadvertently not been
disconnected prior to unhitching the drill.
The polarity must not be reversed.
27.06.2011
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Instructions and settings
3 Instructions and settings
NOTE!
All basic adjustments must be carried out with the Rapid drill on a level surface, with the
wing sections lowered and with the drill hitched to a tractor.
3.1 Tractor
Figure 3.1 Figure 3.2
3.1.1 Tyre equipment and weights
To reduce soil compaction and to increase the pull, the tractor should be fitted with very good
tyres.Try to have as low tyre pressure as possible. Any front weights on the tractor should be removed.
3.1.2 Tractor hydraulic system requirements
1 pressure-free return input, 3/4”, for return oil from the fans. Contact your tractor distributor for
instructions on how this is to be installed.
4 x double-acting hydraulic couplings, 1/2", with the following functions:
A
For fan operation one double-acting hydraulic coupling is required, with a capacity of 40 l/min.
at 180 Bar. This coupling requires an individually adjustable flow.
B
For the raising/lowering of the seed drills and to operate the bout markers, one double-acting
hydraulic coupling is required, with a capacity of 40 l/min. at 180 bar.
NOTE!
It must be possible to use the hydraulic couplings mentioned in A and B above simultane-
ously.
C
For the retraction and extension functions and for operating the Crossboard, one double-acting
hydraulic coupling is required, with a capacity of 20 l/min. at 180 bar.
D
For the raising/lowering of pre-implements, one double-acting hydraulic coupling is required,
with a capacity of 20 l/min. at 180 bar.
18 27.06.2011
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RDA 400S
3.2 Hitching and unhitching the seed drill without an intermediate packer
3.2.1 Hitching
Figure 3.3
1 Connect the drill to the tractor hitch device.
2 Raise and secure the machine parking stay.
3 Fold the hose holder forward and connect the hydraulic hoses and electrical cabling, see also
”3.4 Connecting the hydraulic hoses and electrical cables” on page 22.
4 Check that the hoses and cables are hanging free, even during sharp turns, see also ”3.5 Hose
length and hose holder adjustment” on page 24.
! Regularly inspect the tractor's hitch device and the drawbar eye on the implement for wear, see
”5.2 Inspecting the drill's towing eyelet” on page 93.
27.06.2011
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Instructions and settings
3.2.2 Unhitching
Figure 3.4
! Unhitching and parking must always take place on a level and solid surface.
1 Lower and secure the machine parking support.
2 Be sure to adjust the master ram stopper and the parking stay in such a way that the drill rests
on the wheels, discs and its stay when parked. Since the load on the stay is very high, avoid
parking the drill on soft ground.
3 Disconnect the drill from the tractor hitch.
4 Disconnect the hydraulic hoses and electrical cables. Fold back and secure the hose holders in
the upright position.
Figure 3.5
NOTE!
If the machine is parked and left resting only on the wheels and parking stay, the bout
markers could start to slowly unfold due to internal overleakage in the hydraulic system. Make it
a habit to always park the machine on its wheels, discs and stay and always block the bout markers
with the safety cotter pins.
NOTE!
If the seed drill is to be parked with a full seed hopper, or in a location where the ground
conditions may not be fit to carry the load, a plank or similar must be placed under the parking
stay foot to spread the load.
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RDA 400S
3
3.3 Hitching and unhitching the seed drill with an intermediate packer
3.3.1 Hitching
Figure 3.6 Figure 3.7
1 Connect the drill to the tractor lifting arms. The Class 3 screw taps must be used.
Figure 3.8
2 Fold the hose holder forward and connect the hydraulic hoses and electrical cabling, see also
”3.4 Connecting the hydraulic hoses and electrical cables” on page 22.
3 Check that the hoses and cables are hanging free, even during sharp turns, see also ”3.5 Hose
length and hose holder adjustment” on page 24.
! After connection of the intermediate packer, the tractor lifting arms should be locked using the
side stabiliser stays.
! The driving instructions for the intermediate packer are given in ”4.5 Intermediate packer” on
page 87.
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Instructions and settings
3.3.2 Unhitching
Figure 3.9
1 Park the machine on a firm surface.
2 Depressurize the hydraulic system.
3 Disconnect the drill from the tractor lifting arms.
4 Disconnect the hydraulic hoses and electrical cables. Fold back and secure the hose holders in
the upright position.
NOTE!
ram prior to depressurizing the system. See ”3.16 Locking the lifting rams during service” on page
39.
If unhitching is done on soft ground, be sure to fit the yellow locking device on the lifting
3.4 Connecting the hydraulic hoses and electrical cables
3.4.1 Connection of the hydraulic hoses for operating the machine
1 The two hoses marked by yellow plastic rings are used to raise and lower the seed drill and to
operate the bout markers.
2 The two hoses marked by white plastic rings are used to fold down the side sections and to ad-
just the Crossboard.
3 The two hoses marked by blue plastic rings are used to operate the pre-implement.
4 The two hoses running to the hydraulic top rod (optional equipment) should be connected to a
two-way hydraulic connector.
! Carefully check that all hoses are connected in pairs to the correct hydraulic couplings on the
tractor.
22 27.06.2011
ver. 2
3.4.2 Hose connections to the fan and delivery system
2
2
1
A
Figure 3.10 Figure 3.11
1 Connect the two thin hoses to a two-way hydraulic connector designed for continuous opera-
tion of a hydraulic motor. If available, use a priority connector. The thicker hose of these two
hoses is the pressure hose to the hydraulic motor, while the thinner is the oil leakage hose.
2 The thickest hose is the 3/4" return hose and is connected to a separate non-pressurised return
input. Lock the return input coupling female connection. See “Figure 3.11”.
NOTE!
Carefully wipe the couplings dry! This is a good way to avoid unnecessary problems and
wear in the hydraulic system.
Read section ”3.30 Control station” on page 56 before starting the fan.
RDA 400S
3.4.3 Cable connections to the Control Station and lighting
Figure 3.12
1 Remove the protective cover (A) from the intermediate cable on the seed drill and connect the
cable to the Control Station. Be very careful when making this connection. Make sure that the
pins of both connectors are aligned. Then lightly press the connectors together while screwing
the nut to secure the connectors. When unhitching the implement, screw on the protective cover for the intermediate cable.
2 The male connector for seed drill lighting is connected to the standard external lighting con-
nector on the tractor.
3 The electrical cables are to be hung on the hose holders, together with the hydraulic hoses, see
”3.5 Hose length and hose holder adjustment” on page 24.
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Instructions and settings
A
B
3.5 Hose length and hose holder adjustment
Figure 3.13
The seed drill is equipped with a folding hose holder.
The holder can be fitted in different positions along the drawbar, and it should be located as close
to the tractor as possible to work best. The hose holder should also, in most cases, be pulled out
to its full length. Try to get the support for the hoses close to the drawbar eye or the intermediate
packer turning point.
The excess length of the hoses is formed into a loop beneath the platform and the hoses are
clamped by the hose holder.
! When the hydraulic hoses are connected to the tractor, the hose holder must be folded forward.
Choose a suitable location by moving the pin, see position A. The lengths of the hoses must be
arranged so that they hang free, even during sharp turns.
! When the hydraulic hoses are disconnected from the tractor, the hose holder must be folded
back. Keep the holder in its upright position with the pin, see position B. The hydraulic hoses
can now hang in the hose holder without the quick-release couplings dragging on the ground
and getting dirty.
24 27.06.2011
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RDA 400S
C
A
B
3.6 Wheel retraction mechanism (only machines with the hydraulic depth adjustment option)
Figure 3.14
NOTE!
Risk of crushing in the spring-loaded wheel retraction mechanism. Always use suitable
tools when operating the locking devices, e.g. using the supplied key (C)!
Also see ”3.7 Changing between transport position and working position” on page 26.
The drill has a function that allows the wheels of the side sections to be retracted when the machine
has been folded in to the transport position. This further reduces the transport width of the machine.
To engage this feature, move the levers (A) (one on each side section) up to position (B) once the
machine has been folded in. Use a suitable tool, such as the supplied key (C).
When the machine is unfolded to the work position, the wheel retraction mechanism is automatically reset and the wheels return to the "normal" position.
! The drill should not be in the fully raised position when the side sections are unfolded. Lower
it approx. 5 cm from the topmost position prior to commencing folding out the machine.
! If automatic resetting of the wheel retraction mechanism does not operate, this can be verified
by the machine hanging at an angle in the folded out position. If this is the case, fold in the side
sections and repeat the folding out procedure.
! The machine can be folded in and unfolded even when this feature has not been engaged. How-
ever, the result will be that the wheels of the side sections then remain in the "normal" position,
and the transport width will accordingly be slightly wider!
! Do not lower the machine to the drilling position if the machine is resting on soft ground and
the side sections have been folded in with the side section wheels also retracted.
If the machine has been folded in with the side section wheels retracted, do not retract the
wheels from the ground using the hydraulics.
Unless this caution is heeded, there is a risk of serious mechanical damage to the drill.
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Instructions and settings
3.7 Changing between transport position and working position
3.7.1 Changing to working position
Figure 3.15
A
Lift the seed drill to its top position. Folding the wing sections in and out must always be carried out with the seed drill fully raised. Also check that the tool bar is fully raised before folding
out.
Figure 3.16 Figure 3.17
B
Draw the wings together with the folding ram. At the same time unlock the wing sections with
the line.
Figure 3.18
C
Unfold the wing sections. Keep the lock release line taut until the second section has started to
unfold.
26 27.06.2011
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RDA 400S
Figure 3.19 Figure 3.20
D
Keep the hydraulic lever on the tractor in the lowering position (
must not be used) until the ram ("folding ram") is fully refilled, locking the wing sections in
the unfolded position. See “Figure 3.19”.
Note!
"Floating" position
Figure 3.21
E
Always drive forwards when the seed drill is lowered to its working position, to prevent the
seed coulters becoming clogged.
F
Lower the tool bar to its working position.
G
Undo the safety cotter pins of the bout markers.
3.7.2 Changing to transport position
A
Switch off the low-lift function at the control box. Raise the seed drill to its top position.
When the wing sections are being folded and unfolded, the mid section must always be in its
fully raised position.
B
Fold the drill.
C
Check whether the automatic locking devices engage.
D
Check that front implements and trailing implements do not exceed the 3 metre transportation
width limit.
E
Block the bout markers with the safety cotter pins.
Note!
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Instructions and settings
C
B
A
3.8 Horizontal alignment
Figure 3.22
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RDA 400S
The longitudinal inclination of the drill can be adjusted using the push rod (A) with the machine
resting on solid, level ground. When correctly adjusted, the front and rear row of drill discs should
reach the ground at the same time when the machine is lowered.
Loosen the lock nut (B), adjust to the desired position, and then tighten the lock nut. Use the included spanner with a 60 mm holding width.
The measure (C) must never exceed 165 mm!
NOTE!
Be sure to sufficiently tighten the lock nut!
Ground parallelism can be verified in the field by ensuring that the front seed boxes drill to the
same depth as those at the rear.
This can be easily verified using the Väderstad drill depth meter. First pack the soil a bit, then
scrape off thin layers of soil until the grains become visible. Grains in all rows should be visible
at the same time. If this is not the case, the drill is not operating in a parallel state.
NOTE!
Figure 3.23
This incurs the risk of the seed coulters blocking!
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Instructions and settings
3.9 Mechanical adjustment of sowing depth
Figure 3.24
The drilling depth of the centre section is set using the stop bolt (A). The drilling depth of the side
sections is adjusted with the cranks (B). The scale indications do not constitute absolute values of
the drilling depth in centimetres but serve as an index only. For considerable adjustments of the
drilling depth, It may be necessary to adjust the horizontal alignment. See ”3.8 Horizontal align-
ment” on page 28. Also see ”4.1 Sowing depth” on page 84.
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