Operator's manual
+ INSTRUCTIONS FOR PRODUCT DELIVERY . . . Page 3
Nr. 99 941.GB.80A.0
Ihre / Your / Votre • Masch.Nr. • Fgst.Ident.Nr.
GB
Turnover Plough
SERVO 2
SERVO 2 S
SERVO 2 PLUS
SERVO 2 NOVA
ALLG./BA SEITE 2 / 9300-GB
Important information concerning
Product Liability.
According to the laws governing product liability, the manufacturer and
dealer are obliged to hand the operating manual to the customer at the time
of sale, and to instruct them in the recommended operating, safety, and
maintenance regulations. Confirmation is necessary to prove that the
machine and operating manual have been handed over accordingly.
For this purpose,
-document A is to be signed and sent to Pöttinger,
-document B remains with the dealer supplying the machine,
- and the customer receives document C.
In accordance with the laws of product liability, every farmer is an
entrepreneur.
According to the laws of product liability, property damage is damage
caused by a machine and not to it. An excess of Euro 500 is provided for
such a liabilioty.
In accordance with the laws of product liability, entrepreneurial property
damages are excluded from the liability.
Attention! Should the customer resell the machine at a later date, the
operating manual must be given to the new owner who must then be
instructed in the recommended regulations referred to herein.
GB Dear Farmer
You have just made an excellent choice.
Naturally we are very happy and wish to
congratulate you for having chosen Pöttinger.
As your agricultural partner, we offer you quality
and efficiency combined with reliable servicing.
In order to assess the spare-parts demand for
our agricultural machines and to take these
demands into consideration when developing
new machines, we would ask you to provide us
with some details.
Furthermore, we will also be able to inform you
of new developments.
Dokument D
GB-0600 Dokum D Servo - 3 -
PÖTTINGER Landtechnik GmbH
Industriegelände 1
A-4710 Grieskirchen
Tel. 07248 / 600 -0
Telefax 07248 / 600-2511
❑ Check SERVO Turnover Plough as per the delivery docket. Check that delivery is complete.
All safety equipment and operating devices at hand.
❑ Using the operating manual explain and go over the operation, initial start and maintenance of the machine or
implement with the customer.
❑ Fitting to the tractor has been carried out.
❑ Check that hydraulic connections to the tractor have been made and that they are correct.
❑ Hydraulic functions (turnover, cutting width adjustment) have been demonstrated and explained.
❑ Plough is set correctly to the tractor (cutting width of 1st component, drawing point).
❑ Transport and working positions have been explained.
❑ Information about optional and additional equipment has been given.
❑ It has been pointed out that to read the operating manual is imperative.
Cross where applicable. X
In accordance with Product Liability obligations, we would ask you to please check the following points.
GB
INSTRUCTIONS FOR
PRODUCT DELIVERY
In order to prove that the machine and the operating manual have been properly delivered, a confirmation is necessary.
For this purpose please do the following:
- sign the document A and send it to the company Pöttinger or via the internet to www.poettinger.at
- document B stays with the specialist factory delivering the machine.
document C stays with the customer.
GB
CONTENTS
- 4 -
941.GB.80A.0 Inhalt
Take note to safety points in the supplement!
CONTENTS
Defined use of the plough according to the manufacturer’s instructions .........................................5
Technical data ..................................................................................................................................5
Vehicle Identification Plate ...............................................................................................................5
Optional Equipment..........................................................................................................................6
Plough body forms ...........................................................................................................................7
Preparations on the tractor...............................................................................................................8
Hydraulic control on the lifting gear ..................................................................................................8
Hydraulic connection ........................................................................................................................9
Preparations on the plough ..............................................................................................................9
Attaching to the tractor ...................................................................................................................10
Removal from tractor......................................................................................................................10
Garaging, cleaning and winter storage of the implement ...............................................................10
Before driving to the field ............................................................................................................... 11
Set furrow width ............................................................................................................................. 11
Take care with models.................................................................................................................... 11
Fine setting (measurement F) .......................................................................................................12
Setting the adjustment spindle .......................................................................................................12
Setting the plough to the tractor using "Servomatic" ......................................................................13
2. Furrow width setting of the first ploughing component (backfurrow) ..........................................13
Turning the plough over .................................................................................................................14
Hydraulic cylinder (22) to swing the plough in................................................................................14
Setting the plough gradient (11) .....................................................................................................14
Ploughing with hydraulic control.....................................................................................................15
Hydraulic cutting width adjustment (SERVO PLUS) ......................................................................15
Shear bolts .....................................................................................................................................16
Semi-automatic stone safety device ..............................................................................................16
Fully automatic „Nonstop“ overload safety .....................................................................................17
Setting range ..................................................................................................................................17
Gas accumulator (43):....................................................................................................................18
Altering pressure in the gas accumulator .......................................................................................18
Take note........................................................................................................................................18
General maintenance advice .........................................................................................................19
Cleaning the machine parts ...........................................................................................................19
Hydraulic unit ................................................................................................................................19
Setting the ploughing component tilt ..............................................................................................20
Basic setting of the ploughing component .....................................................................................20
Setting the disk coulter (* ...............................................................................................................21
Spring loaded disk coulter (* ..........................................................................................................21
Pre-ploughing implements: ............................................................................................................21
Double feeler wheel .......................................................................................................................22
UNI - Rubber wheel........................................................................................................................23
Changing to transport position .......................................................................................................23
Transportation ................................................................................................................................23
Changing to working position .........................................................................................................23
Extension arm with hydraulic releasing device for packer and trailing implements .......................24
Working with a trailing implement ..................................................................................................24
Supplement ....................................................................................................................................25
Recommendations for work safety .................................................................................................27
Meaning of warning signs ..............................................................................................................30
Important! Additional Information ...................................................................................................31
Combination of tractor and mounted implement ............................................................................31
(941) 0000-GB TECHN. DATEN
GB
TECHNICAL DATA
- 45 -
Vehicle Identification Plate
• The implement’s exact designation and its fittings (frame
height, component form, ...) are imprinted in the section
„Type“.
• The factory number is imprinted on the vehicle identification
plate (as shown opposite) and on the attachment frame.
Guarantee claims and queries cannot be processed without the
serial number being supplied.
• Please enter the number onto the title page of this operating
manual immediately after taking delivery of the implement.
Defined use of the plough according to the manufacturer’s instructions
The plough is intended solely for normal use in agricultural work.
* For the ploughing in of arable land, fields and other soils. Any other uses outside of these are regarded as not in accordance with
the defined use. The manufacturer will not be held liable for any damages resulting from misuse. The risk is carried by the user
alone. The keeping of operating, servicing and maintenance requirements as specified by the manufacturer also come under the
heading of „defined use“.
Technical data
SERVO 2
Type Blades Component distance Frame height Cutting width Weight 1
SERVO 2-295 2 95 cm 72 / 78 cm 30 / 33 / 37 / 40 cm 442 kg
SERVO 2-395 3 95 cm 72 / 78 cm 30 / 33 / 37 / 40 cm 583 kg
SERVO 2-202 2 102 cm 72 / 78 cm 32 / 35 / 39 / 43 cm 445 kg
SERVO 2 S
Type Blades Component distance Frame height Cutting width Weight 1
SERVO 2 S-485 4 85 cm 72 / 78 cm 27 / 30 / 33 / 36 cm 785 kg
SERVO 2 S-495 4 95 cm 72 / 78 cm 30 / 33 / 37 / 40 cm 800 kg
SERVO 2-S PLUS
Type Blades Component distance Frame height Cutting width Weight 1
SERVO 2 S-P395 3 95 cm 72 / 78 cm 30 - 50 cm 672 kg
SERVO 2 S-P302 3 102 cm 72 / 78 cm 32 - 54 cm 676 kg
SERVO 2 NOVA
Type Blades Component distance Frame height Cutting width Weight 1
SERVO 2-N382 3 82 cm 65 / 72 / 78 cm 26 / 29 / 32 / 36 cm 784 kg
SERVO 2-N295 2 95 cm 65 / 72 / 78 cm 30 / 33 / 37 / 40 cm 580 kg
SERVO 2-N395 3 95 cm 65 / 72 / 78 cm 30 / 33 / 37 / 40 cm 790 kg
SERVO 2-N202 2 102 cm 65 / 72 / 78 cm 32 / 35 / 39 / 43 cm 583 kg
1 Applies to implements with standard fittings
A. P ttinger Maschinenfabrik Ges. m. b. H. A-4710 Grieskirchen Ober sterreich
Modell
Ges.Gew
Type
Masch.Nr.
(941) 0000-GB TECHN. DATEN
GB
TECHNICAL DATA
- 46 -
Optional Equipment
TD65/92/83
Trashboard
UW, UWS, W, WSS.
Leg deflector
U, UW, UWS, W, WSS.
Guiding plate
U, UW, UWS.
Knife coulter
U, UW, W, WSS.
Landside saver
UW, UWS, W, WSS
turnover depth
wheel (steel)
Double depth
wheel
Maize mulcher
ME 50/25 Smooth disk coulter Cutaway disk coulter
Manure mulcher - skim coulter
DV 50-25
Warning sign, Yellow reflex reflector for side indication, Red
reflex reflector for the lighting unit.
Extension arm for plough-trailing implements
Subsoiler
GB
EQUIPMENT
- 7 -
9300 GB AUSRÜSTUNGEN (941)
35
35
35
35
40
30
35
26
30
35
35-30 UW
35-35 UW
35-26 W
35-30 UWS
40-35 WSS
TD55/93/5
•
•
-
•
•
•
-
x
x
x
-
-
-
-
Plough body
forms
Description
• Easy to pull
• Excellent clod breaking
• Suitable for all soils
• Especially for slopes/shallow
plougling
• Easy to pull
• Very good characteristics for
newly ploughed fields
The small slatted body
• Particularly suitable for heavy,
sticky soils
• Very easy to pull
The large slatted body
• Particularly suitable for heavy,
sticky soils
• Very easy to pull
Working width
Working depth
Designation
Divided share Long-nose
share
Perfect share Share with
bolt-on tip
Pointed share
•
Factory fitted
Possible variation to factory fittings (without
additional charge)
- Not available
X Optional fitting for an additional charge
(943) ANBAU 9600-GB
GB
ATTACHING TO THE TRACTOR
- 8 -
Preparations on the tractor
General
Please observe the power range limits of the tractor being used.
Wheels
- Air pressure in the tractor’s rear tyres when ploughing should be 0.8 bar.
- Under difficult operating conditions additional wheel weights can be
advantageous. See the tractor manufacturer’s operating manual also.
Ballast weight
Sufficient ballast weights are to be stacked on the front of
the tractor in order to guarantee steering and braking
capabilities.
At least 20% of the tractor’s tare weight on the front axle.
Lifting gear
- Left and right lifting struts (4) must be of equal length.
Adjust using adjusting device (3).
- If the lifting struts on the lower link can be pinned variously, then select the
back position (H). In so doing the tractor’s hydraulic unit will not be heavily
loaded.
- Position (2) the upper link (1) according to the tractor manufacturer’s
information.
Setting-up for transportation
- Fix the lower link with the struts (5) so that the attached implement cannot
swing out during transportation.
- The hydraulic’s operating lever must be secured against lowering.
- Do not transport in the „ON-LAND“ position
Setting-up for ploughing
- Set the struts (5) so that the greatest possible sideways swing range exists.
Hydraulic control on the lifting gear
Control position:
For mounting and dismounting the implement and for transportation.
The control position is the normal setting for the lifting gear hydraulics.
The mounted implement remains at the height (= position) set by the servo-
valve (ST).
Pull control, mix control:
Ploughing occurs with of one of the two operating modes. See chapter
„OPERATION“ for description.
20%
Kg
ST
(943) ANBAU 9600-GB
GB
ATTACHING TO THE TRACTOR
- 9 -
6
TD65/92/28
Hydraulic connection
Single-action control unit
If the tractor has a single-action servo-valve only, it is absolutely
necessary to have an oil return line (T) professionally installed.
- Connect pressure line (1) to single-action control unit.
- Connect oil return hose (2) to tractor’s oil return line.
Double-action control unit
- Connect pressure line (1) and oil return line (2).
Preparations on the plough
Lifting lugs
Select the lifting lugs for the implement to be attached which correspond
to the hook-up size (category II or III) of the tractor’s lifting gear.
Changing lifting lug
- Knock clamping sleeve (2) out.
- Remove lifting lug
- Position required lifting lugs (o 28mm or 36.6mm) outwardly.
- Set required measurement and resecure lifting lug with clamping
sleeve (2) in the respective boring.
Cat. II = 825mm
Cat. III = 965 mm
Upper link pins
- Insert safety cord (6) in the unused boring.
(943) ANBAU 9600-GB
GB
ATTACHING TO THE TRACTOR
- 10 -
TD65/92/27
1P1
P2
Parking stand
- Using the control lever
(8), release parking
stand, swing up and back
and lay in the clamp (9).
Lighting and Warning equipment
When travelling in fog, half-light or at night, protruding parts are to be
clearly indicated. Advice on the application of warning signs, reflective
film or paint and lighting units can be found in the instructions for
ancillary equipment in
supplement C.
PôTTINGER can supply
lighting units and warning
signs upon request.
Always observe the
statutory regulations.
Removal from tractor
- Turn plough to working position and stand the implement on firm,
even ground.
- Move the control lever (ST) back and forth several times to reduce
pressure in the hydraulic lines.
- Switch tractor’s hydraulics
to control position.
- Disconnect hydraulic hoses
from tractor.
- Using the control lever (8),
release parking stand, swing
down and secure.
- Detach upper and lower links
from implement.
Garaging, cleaning and winter storage of the
implement
• Observe the points in the chapter „MAINTENANCE AND SERVICE“!
8
9
TD65/92/31
Attaching to the tractor
Safety advice:
See supplement A1, Pt. 8a-h
- Switch tractor’s hydraulics to control position.
- Attach implement to lower link and secure with linch pin.
Note
The attaching frame can be positioned horizontally by turning the tilt
spindle (11).
Doing this enables an easier coupling to the lower link.
Then turn the tilt spindle (11) back. See chapter „OPERATION“ also.
Pin upper link (1)
- Pin upper link (1) so that the attachment point (P1) on the plough
during operation is somewhat higher than the attachment point (P2)
on the tractor.
Securing lower link
If the tractor’s hydraulic control is
to be steered over the lower link,
then the upper link should be
positioned in the slot (LL) on the
attaching frame.
Securing upper link
If the tractor’s hydraulic control is
to be triggered over the upper
link, then both the (RL) borings on
the attaching frame are to be used.
- Couple hydraulic hoses to the tractor.
ST
(941) 9900-GB VOREINSTELLUNG
GB
PRESETTING THE PLOUGH
- 11 -
TD57/93/7
TD57/93/8
RA VF ZP VF ZP VF ZP VF ZP
(mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm)
900 412 491 410 495 409 496 409 495
1000 406 470 402 485 400 500 397 506
1100 400 448 396 464 393 480 388 500
1200 395 427 390 443 386 459 381 480
1300 390 305 385 422 381 438 375 460
1400 385 382 380 400 376 417 370 439
Table for models SERVO II, SERVO II-S PLUS, SERVO II NOVA
with double effect cylinder
Table for models SERVO II, SERVO II-S PLUS, SERVO II NOVA
with single effect cylinder
1234
RA VF ZP VF ZP VF ZP VF ZP
(mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm)
900 424 483 424 482 - - - -
1000 415 490 413 492 413 492 415 490
1100 408 478 405 494 403 501 402 502
1200 402 457 399 473 395 489 392 509
1300 397 436 393 453 389 469 384 489
1400 392 415 388 432 383 448 378 469
1234
Before driving to the field
Set furrow width
Four furrow widths can be selected on the standard
model (SERVO). The furrow width is set by swivelling
the anchoring console.
- Loosen front hexagonal screw (SK).
- Remove rear hexagonal screw.
- Swivel anchoring console until the required furrow width
is obtained and the hexagonal screw fits into one of the
borings (1, 2, 3, 4).
- Retighten hexagonal screws.
Setting both the spindles (ZP, VF) according to the
table.
Setting depends upon the inside distance between the tractor wheels (RA) and the
set furrow width (1, 2, 3, 4).
Both the drawing point (ZP) and backfurrow (VF) spindles are to bet set according to
the table. Further Information on the drawing point and backfurrow in chapter
"OPERATION"
.
Take care with models
SERVO II PLUS, SERVO III PLUS, SERVO IV PLUS!
The lowest setting is to be made on models with hydraulic furrow width adjustment.
TD57/93/8
TD57/93/7
RA
TD65/92/35
RA
TD65/92/35
SERVO II-S PLUS
TD 62/99/08
VF
ZP
VF
ZP
1
2
3
4
SK
SERVO II
SERVO II-S
SERVO II-SE
SERVO II NOVA
SERVO II-S NOVA
(941) 9900-GB VOREINSTELLUNG
GB
PRESETTING THE PLOUGH
- 12 -
Graph for cat. II
cat. II = 825 mm
Graph for cat. I
cat. I = 683 mm
Fine setting (measurement F)
Fine setting adapts the plough to the tractor in use
and therefore is to be carried out only once.
With that the fine adjustment spindle is set at the
established measurement (F).
- Make the measurements (A) and (B) and determine
the intersecting point (F) for cat. I or cat. II in
accordance with the table.
The measurements (A, B) are each to be made
from bolt centre to bolt centre.
- The position of the intersecting point between the
diagonal lines on the graph is the setting (F).
Example:
A = 456 mm
B = 902 mm
The intersecting point (F) lies between
the lines "256" and "258".
Therefore the average is 257 mm.
F = 257mm
Setting the adjustment
spindle
- Remove bolts (12).
- Set the adjustment spindle to the
determined measurement (F).
- Replace bolts (12).
TD57/93/4
Kat. II = 825 mm
Kat. I = 683 mm
Kat. I
Kat. II
A
B
B
TD65/92/39
(943) 9600-GB EINSATZ
GB
OPERATION
- 13 -
Setting the plough to the tractor using "SERVOMATIC "
„SERVOMATIC“ enables the optimum adaption of plough to tractor.
The following setting controls should be carried out in order.
1. Fine setting (F)
- Check setting measurement for fine adjustment spindle (F).
See chapter
"PRESETTING THE PLOUGH".
2. Furrow width setting of the first ploughing component (backfurrow)
The furrow width (S2) of the first ploughing component is set by turning the spindle (VF).
Furrow width (S1) to narrow
- turn spindle (VF) longer
Furrow width (S2) to wide
- turn spindle (VF) shorter
Furrow width (S2) correct
- Spindle is correctly set according to table.
See chapter
"PRESETTING THE PLOUGH“
Hydraulic cylinder (optional)
A hydraulic cylinder can be installed in place of the spindle (VF). However
an additional double-action control unit is necessary on the tractor.
• Never reach into the area where danger of crushing
exists as long as parts are still moving.
• Do not stand in the swinging range of the implement.
Incorrect setting
The drawing line does not run through the mid-point of the tractor’s rear
axle. Tractor is drawn into already ploughed area during ploughing. This
can only be compensated by steering in the opposite direction.
- Turn spindle (ZP) longer
See chapter
"PRESETTING THE PLOUGH“
3. Setting the drawing point (Z)
Correct setting
The drawing line (ZL) runs through the mid-point (M) of the
tractor’s rear axle. No side pull arises from the tractor.
The plough is easy to pull.
- Spindle (ZP) is set according to the table.
See chapter
"PRESETTING THE PLOUGH“
(943) 9600-GB EINSATZ
GB
OPERATION
- 14 -
Turning the plough over
Beware!
Nobody is to stand within the swinging range during turning.
Turning procedure is only to be actuated from the tractor cabin.
The plough must be completely raised to turn.
Depending on the plough size, the turning unit can be equipped with a single-action
cylinder and spring-powered support or with a double-action cylinder and intergrated
automatic reversing gear.
The automatic reversing gear enables the whole turning procedure to be carried out
through only one single switch position on the control unit (ST).
Turning procedure with a double-action cylinder
The turning procedure is carried out in the same way for both the single-action and the double-action control
unit.
A return line is necessary on the tractor for a single-action control unit.
- Switch control unit (ST) to lift (h).
The plough is turned 180¯.
- Switch control unit (ST) to neutral (O).
After some 5 seconds another turning procedure can be effected.
Turning procedure with a single-action cylinder and a single-action control unit.
- Firstly, switch control unit (ST) to lower (s).
The plough turns through the pulling force of the springs (21).
- If the upper dead centre (T) is exceeded then switch the control unit to lift (h).
Special fitting for 4 and 5 blade ploughs
Hydraulic cylinder (22) to swing the plough in
In the first phase of turning the hydraulic cylinder (22) swings the plough to the tractor’s centre. This
enables 4 and 5 furrow ploughs to be turned without problem. After turning is completed the hydraulic
cylinder (22) swings the plough back into the working position.
Only one double-action or one single-action control unit with return line is necessary on the tractor. This control unit simultaneously
accommodates the hydraulic cylinder (22) and the cylinder in the turning unit.
TD 65/92/48
s
h
0
ST
TD65/92/46
T
21
TD 65/92/25
90°
Setting the plough gradient (11)
The plough should sit as vertical (90°) as possible to the
ground during ploughing. This position is obtained by
turning both spindles (11) as described below.
- Lift plough 5 - 10 cm
- Actuate control unit (ST) briefly.
The plough turns slightly away from the stop
spindle (11).
- Set the gradient using the spindle (11).
- Turn plough back to stop again.
- Proceed with ploughing and check whether the
plough sits more vertically (90°) to the ground
through the new setting.
(943) 9600-GB EINSATZ
GB
OPERATION
- 15 -
Ploughing with hydraulic control
So that the hydraulic control functions properly, the following must be
observed.
- Position upper link (1) so that the attachment point (P1) on the plough
during operation is somewhat higher than the attachment point (P2) on
the tractor.
Pinning the upper link
LL, RL = Pinning position for securing
lower link
RL =
Pinning position for securing upper link
See chapter „ATTACHING TO THE TRACTOR“ also.
- During operation the plough should lie lengthwise as parallel as possible to the ground
surface.
- The working depth is set with the lifting gear via the servo-valve firstly.
Depending upon the hydraulic control model, varying ground resistance when ploughing is
passed on to the control servo-valve via the upper link (1) or both the lower links. The relevant
impulse is then converted causing the lifting gear to lift or lower.
An example: Securing upper link
The plough penetrates deeper into the ground.
This causes the pressure on the control servo-valve via the upper link to become greater.
As a consequence, the control valve remains switched to lift until the set working depth is reached again.
Note:
Follow the tractor manufacturer’s operating manual also.
Optional equipment:
Hydraulic cutting width adjustment (SERVO PLUS)
A hydraulic cylinder actuates the adjusting unit. Therefore an additional double-action control unit is necessary on the tractor.
Limitless cutting width adjustment can be carried out during ploughing. The drawing line position is not influenced by this (see "Setting the drawing
point (Z)").
Advantages:
- accurate ploughing along boundaries.
- a 3 furrow plough can plough from the widest position to the outside edge of the tractor wheel.
- ploughing around obstacles (masts, trees, etc.).
TD65/92/27
1
P1
P2
ST
(940) 9200 GB SICHERUNG
GB
OVERLOAD SAFETY
- 16 -
Shear bolts
The ploughing components are fastened with shear bolts.
When overloaded the shear bolts break (30) and the ploughing component swings away
and up.
- Remove the rest of the shear bolt.
- Loosen hexagonal bolt (31).
- Swing ploughing component back into the working position.
- Insert new shear bolts and retighten both bolts.
Take note!
Only use genuine shear bolts (see spare parts list) with the corresponding
dimension and quality. Under no circumstances use bolts with greater or lesser
strength.
Optional equipment for
SERVO 1, SERVO I-M, SERVO II, SERVO II-S
Semi-automatic stone safety device
This device is a convenient solution for slightly stoney ground.
- Raise plough after stone safety device has been activated The system locks
automatically.
- Lower plough and continue ploughing.
Setting the release force
The hexagonal bolt enables the release force to be progressively
adjusted within a 500 - 2000 kg range.
- Bolt screwed out: max. release force = 2000 kg
- Bolt screwed in: min. release force = 500kg
(948) 9200 GB NOVA
GB
SERVO NOVA
- 17 -
A
E
90 - 150 bar
TD65/92/57
42
80 bar
41
Fully automatic „Nonstop“ overload safety
The fully automatic overload safety is recommended for soils which are
difficult to plough e.g. soil with stones or other foreign bodies.
Every ploughing component is hydromechanically safeguarded against
damage on the SERVO-NOVA plough.
When driving over an obstacle the ploughing body swings out to either side
and then swings automatically back into the working position. There is no
need to stop the tractor.
Along with the fully automatic „Nonstop“ overload safety, all component
carriers have a shear bolt as additional protection. See chapter
"OVERLOAD SAFETY“
for a description.
Setting range
• The overload safety release force can be adapted to the various soil types.
Normal setting
- Pressure in the hydraulic cylinders (40) must be approx. 10 bar greater than the nitrogen pressure in the gas accumulator (43).
--------------------------------------------------------------------------------------------------------------------------------------------
Nitrogen pressure in the gas accumulator (43) Pressure adjustment area
(Factory set) of the hydraulic cylinder (40)
--------------------------------------------------------------------------------------------------------------------------------------------
80 bar 90 bis 150 bar
--------------------------------------------------------------------------------------------------------------------------------------------
Should practice show that the overload safety reacts too often,
the pressure in the hydraulic cylinders can be increased with
the accompanying top-up device (42).
Increasing the pressure in the hydraulic cylinders:
- Shut-off valve in position A.
- Remove sealing cap (41) from shut-off valve and screw on
top-up line.
- Depressurize servo-valve on the tractor.
- Connect plug-in coupling (42) to the tractor.
- Open shut-off valve (position E). The hydraulic pressure
drops.
- Actuate servo-valve on tractor until the manometer shows the
desired pressure. Then
close the shut-off valve
(position A).
Take note!
The shut-off valve must
always be closed
(position A) when
ploughing.
- Depressurize top-up line using servo-
valve.
- Remove top-up line and screw sealing cap (41) back on.
(948) 9200 GB NOVA
GB
SERVO NOVA
- 18 -
Gas accumulator (43):
Pressure in the gas accumulator can also be altered.
A reduction or increase of gas pressure in the accumulator depends upon the
various soil types.
• With very light soil the gas pressure can be somewhat reduced.
Important!
No welding, soldering or mechanical work of any kind may be carried out
on the accumulator.
Altering pressure in the gas accumulator
This work must be carried out only by our Customer Service or by a specialist work
shop.
A special filling and testing device is required to reduce or increase the preload
pressure in the gas accumulator.
1. Reduce pressure:
a) Remove plastic cap.
Remove the lead mould plug (if it exists) in the gas filling plug (44) with a pointed tool.
b) Slightly loosen the gas filling plug (44).
c) Screw on filling and testing device.
d) Slightly open the outlet valve on the filling device.
Slowly let the nitrogen out (N) until the mamometer shows the desired pressure has
been reached.
e) Close outlet valve, remove filling device, tighten gas filling plug and knock the lead
mould plug (if it exists) back in.
2. Increase pressure:
Only use nitrogen (N) to fill the accumulator, do not use oxygen (danger of explosion).
f) Connect filling device to nitrogen bottle.
g) Remove plastic cap.
Remove the lead mould plug (if it exists) in the gas filling plug (44) with a pointed tool.
Slightly loosen the gas filling plug (44).
Screw on filling and testing device.
h) Screw testing device onto nitrogen bottle.
i) Slightly open the outlet valve on the filling device and fill with nitrogen until the mamometer shows the required pressure has been
reached.
k) Close outlet valve, remove filling device, tighten gas filling plug and knock the lead mould plug (if it exists) back in.
Take note
All gas accumulators show a slight pressure drop after a certain period of time, according to "HYDAC" factory specifications.
The gas loss amounts to approx. 2-3 % pa.
It is recommended that the accumulator pressure be checked and, if necessary, regulated after 4-5 years.
(943) 9700-GB WARTUNG
GB
MAINTENANCE AND SERVICE
- 19 -
General maintenance advice
In order to keep the implement in good condition even after a long
service life, please observe the following points:
- After the first hours of operation retighten all screws.
During operating time
- Check all screws occasionally and retighten if necessary.
- Grease the four greasing points on both of the swing bolts weekly.
- Grease all other greasing points at least twice per season.
At the same time oil joints and adjusting spindles also.
Expendable parts
- Replace worn out expendable parts in time to prevent all stress-
bearing parts from becoming damaged.
Tyre pressure
- Pay attention to the correct tyre pressure!
Check tyre pressure regularly!
• Danger of bursting exist when inflating or when tyre
pressure is too great!
TD55/93/22
FETT
Cleaning the machine parts
Take note!
Do not use a high pressure cleaner to clean bearings or hydraulic
parts.
- Danger of rust formation!
- Lubricate the machine after cleaning and carry out a short trial run.
- Cleaning with too much pressure can damage the paintwork.
Parking in the open
When parking in the open for
longer periods, clean plunger rods
and then grease.
Winter storage
- Thoroughly clean the machine
before storing.
- Store the machine where it is weather protected.
- Protect exposed parts against rusting.
- Grease all greasing points
Hydraulic unit
- Check hydraulic hoses regularly for damage.
Immediately replace porous or damaged hydraulic hoses.
FETT
TD49/93/2
Beware: Danger of infection!
• Where there are defects in the hydraulic
unit, do not touch areas of leakage.
Before working on the hydraulic unit
- lower implement to the ground.
- When carrying out maintenance work on a raised
implement always make it secure with a suitable
support.
- Depressurize the hydraulic unit and turn the
motor off.
(943) 9700-GB WARTUNG
GB
MAINTENANCE AND SERVICE
- 20 -
Basic setting of the ploughing component
Checks must be made in the following order after replacing worn out parts:
1. Stand the plough on even ground.
2. The gap (A) between plough and blade cutting edege must be the same for all ploughing components.
3. Check the gap (B1) on the last ploughing component.
B1 =0 - 5 mm for ploughing components* of the type W, UWS
5 - 8 mm for ploughing components* of the type UW, UWS, WSS (to year 1995)
10 - 20 mm for ploughing components* of the type UW, UWS, WSS (from year 1996)
4. Set the same measurement for gap (B) as for B1.
* The type of ploughing component is shown clearly on the manufacturer’s plate.
Setting the ploughing component tilt
If the plough is not penetrating the ground correctly, an improvement
can be obtained by turning the eccentric bush.
• The blade point in the area „S“ is set either higher or lower depending
upon the position of the eccentric bush (A or B).
• Retighten screws after resetting.
On some models a catch plate is fitted instead of an eccentric
bush.
See
"Basic setting of the ploughing component"
also.
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