KUHN GF 5000 T User manual

ASSEMBLY / OPERATOR'S MANUAL
GF 5000 T / M GYROTEDDER
N° 95210 A.GB - 10.1999
PLEASE READ CAREFULLY
BEFORE USING THE MACHINE

DEAR OWNER,
In buying a KUHN machine you have chosen wisely. Into it have gone yea s of thought,
esea ch and imp ovements. You will find, as have thousands of owne s all ove the wo ld, that
you have the best that enginee ing skill and actual field testing can p oduce. You have
pu chased a dependable machine, but only by p ope ca e and ope ation can you expect to
eceive the pe fo mance and long se vice built into it.
This manual contains all the necessa y info mation fo you to eceive full efficiency f om you
machine. The pe fo mance you get f om this machine is la gely dependant upon how well you
ead and unde stand this manual and apply this knowledge. Please DO NOT ASSUME THAT
YOU KNOW HOW TO OPERATE AND MAINTAIN YOUR MACHINE befo e eading this
manual ca efully. KEEP THIS MANUAL AVAILABLE FOR REFERENCE.
You KUHN deale will inst uct you on the gene al ope ation of you machine. He is inte ested
that you get the best pe fo mance possible and will be glad to answe any special questions
that may a ise ega ding the ope ation of the KUHN machine.
You KUHN deale can offe a complete line of genuine KUHN se vice pa ts.
These pa ts a e manufactu ed and ca efully inspected in the same facto y that builds the
machine to assu e high quality and accu ate fitting of any necessa y eplacements.
When o de ing se vice pa ts it is impo tant that you indicate the type of machine conce ned
and its se ial numbe .
Fo this eason please complete the model identification plate diag am below with the equi ed
info mation. This will p ovide you with an easy efe ence fo futu e se vice pa ts o de s.
ABOUT IMPROVEMENTS
KUHN is continually st iving to imp ove its p oducts and, the efo e, ese ves the ight to make
imp ovements o changes when it becomes p actical to do so, without incu ing any
obligations to make changes o additions to the equipment sold p eviously.

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Page
Safety 2
Safety decals 7
Technical specifications 9
Assembly instructions 10
Attachment : - to the tractor 13
- PT shaft 13
Working position and adjustments 15
Parking the machine 16
perating speed 16
Transport position 17
Lubrication 19
ptional accessories 20
Conditions of limited warranty 22
CONTENTS
Copyright 1999 KUHN S.A.

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SAFETY ADVICE
The above symbol is used throughout this manual every time recommendations are made concerning your safety,
the safety of others, or the good operation of the machine.
These recommendations must be made known to all machine operators.
DESIGNATED USE OF THE MACHINE
The GF 5000 T / M Gyrotedder must only be used for the work for which it has been designed : spreading and turning
straw and pre-mowed fodder. When fitted with a reduction gearbox, the machine can also be used for forming small
night swath in order to reduce the amount of humidity getting into the crop over night.
The manufacturer is not held liable for any damage resulting from machine applications other than those specified
by the manufacturer.
Any use other than the designated operation is at the risk and responsibility of the operator.
Designated use of the machine also means :
- following operation, maintenance and repair recommendations given by the manufacturer ;
- using only genuine spare parts, equipment and accessories as designated by the manufacturer.
The GF 5000 T / M Gyrotedder must only be operated, maintained and repaired by competent persons who are
familiar with machine specifications and operation and are aware of any danger involved.
The operator must imperatively respect current legislation concerning :
- accident prevention,
- work safety,
- public traffic circulation.
All safety advice indicated on the machine must be strictly observed.
The manufacturer is not held liable for any damage resulting from machine modifications carried out by the operator
himself or by a third party without previous written agreement from the manufacturer.

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GENERAL SAFETY RECOMMENDATIONS
Before operating the machine, always ensure that tractor and machine are in accordance with work safety and road
traffic regulations.
BASIC PRINCIPLES
1. In addition to the recomendations given in this manual, legislation on work safety and accident prevention must
also be respected.
2. Advice is indicated on the machine, specifying safety recommendations in order to prevent accidents.
3. When travelling on public roads, the operator must respect all road traffic regulations.
4. Before starting work, the operator must be familiar with all machine controls, handling devices and their
functions. nce at work, it is too late to do so!
5. Do not wear loose clothing which could become caught up in moving elements.
6. Use a tractor equipped with a safety cab. Keep windows and roof hatch closed for reduced sound level while
operating the PT driven implement.
7. Before starting up the machine and beginning work, check the surrounding area (beware of children!). Make sure
there is sufficient visibility.
Keep all people and animals away from the danger zone of the machine (risk of projection!).
8. Carrying people or animals on the machine when working or in transport is strictly forbidden.
9. Machine must only be attached to tractor using means provided and in accordance with current safety
standards.
10. When attaching or removing the machine, place the parking stand into the corresponding position.
11. Special care should be taken when attaching or removing the machine from the tractor.
12. Before attaching the machine, ensure that the front tractor axle is sufficiently ballasted.
Ballast is to be placed on the supports provided in accordance with instructions of the tractor manufacturer.
13. Do not surpass the maximum axle load or the overall transport weight as prescribed by the manufacturer.
14. Do not exceed the maximum transport width authorized by road traffic regulations.
15. Before transporting the machine on public roads, ensure that all legally required guards and indicators (lights,
reflectors ...) are in place and in good operation.

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16. All operating controls (cords, cables, rods...) must be positioned so that they cannot be set off accidentally,
risking accident or damage.
17. Before traveling on public roads, put the machine into its transport position as instructed in this operators
manual.
18. Never leave the tractor seat while the machine is operating.
19. Drive speed must be adapted to ground conditions as well as to roads and paths.
Always avoid abrupt changes of direction.
20. Precision steering, tractor adherence, road holding and efficient braking are influenced by the type of implement,
weight, ballast of front axle, ground or road conditions. It is therefore of utmost importance to be cautious in every
given situation.
21. Be particularly cautious when turning corners, paying attention to machine overhang, length, height and weight.
22. Before operating the machine, ensure that all safety guards are firmly in place and in good condition. If worn
or damaged, replace immediately.
23. Before operating the machine, check the tightness of all nuts and bolts, particularly on fixing elements (blades,
tines, knives, spades ...)
24. Keep clear of the machine operating area.
25. WARNING ! Danger of crushing and shearing can exist when components are operated by hydraulic or
pneumatic controls.
26. Before leaving the tractor or before adjusting, maintaining or repairing the machine, turn off the engine, remove
the ignition key and wait until all moving parts have come to a complete stop.
27. Do not stand between the tractor and the machine unless the hand brake is tight and/or stops have been placed
under the wheels.
28. Before any adjustments, maintenance or repairs are carried out, ensure that the machine cannot be started up
accidentally.
ATTACHMENT
1. When attaching or removing the machine from the tractor, position hydraulic lift control lever in such a way that
it cannot be set off accidentally.
2. When attaching the machine to the tractor 3-point linkage, ensure that diameter of the link pins corresponds to
the diameter of the ball joints.
3. WARNING ! Danger of crushing and shearing can exist in the lifting zone of the 3-point linkage !
4. Do not stand between the tractor and the machine when operating the outer control lever of the lift mechanism.
5. In transport, the machine lift mechanism should be stabilized by tractor tie rods to avoid floatation and side shifting.
6. When transporting the machine in the raised position, lock the lift control lever in place.
POWER TAKE-OFF

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1. Use only the PT shaft supplied with the machine or recommended by the manufacturer.
2. PT guards must always be in place and in good condition.
3. Check for correct PT overlap when at work and in transport.
4. Before attaching or removing the PT shaft, disengage PT shaft, turn off engine and remove ignition key.
5. If a primary PT shaft is equipped with a slip clutch or a free wheel, these must be fitted on the machine PT .
6. Ensure that PT shaft is always correctly fitted and locked into place.
7. Make sure guards are correctly in place and secured with the safety chains provided.
8. Before engaging PT , ensure that PT speed (rotational frequency) and direction are in accordance with
manufacturer's recommendations.
9. Before engaging PT , keep all people and animals clear from the machine.
10. Never engage PT shaft when tractor motor is turned off.
11. Never surpass the PT angle recommended by the manufacturer.
12. WARNING ! Rotating elements can continue turning momentarily after PT is disengaged. Keep clear until all
rotating elements are at a standstill.
13. When removing the machine, place PT shaft on the supports provided.
14. Fit the safety cap on tractor PT .
15. Replace any worn or damaged PT guards immediately.
TIRES
Rotation speed ... rpm (American Measure) is also expressed in metric measure : Rotational frequency ... min - 1 . Both
units are equivalent, for example : Rotation speed 540 rpm equals Rotational frequency 540 min-1.

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1. Before any adjustments, maintenance or repairs are carried out, ensure that the machine rests on the ground
and is perfectly stable so that it cannot move accidentally (put wedges in place).
2. Assembly, disassembly and repair of wheels and tires must only be carried out by competent persons who are
equipped with standardized tools.
3. Check tire pressure regularly !
Respect manufacturers recommendations on tire pressure.
MAINTENANCE
1. Before checking for any machine malfunction and before adjusting, maintaining or repairing the machine,
disengage PT , turn off engine and remove ignition key.
2. Check tightness of nuts and bolts regularly. Retighten if necessary.
3. If the machine is raised, prop it up in a stable position before carrying out any maintenance work.
4. When replacing a working part, wear protection gloves and only use standardized tools.
5. It is forbidden to discard any oil, grease or filters. These must be given to waste disposal organizations to protect
the environment.
6. Disconnect power source before any work is done to the electric system.
7. Check safety guards regularly, particularly those that are subject to wear. Replace immediately if damaged.
8. Spare parts used must be in accordance with specifications and standards as defined by the manufacturer. Use
only genuine KUHN parts !
9. Before any electric welding is carried out on tractor or attached machine, disconnect generator and battery
terminals.
10. Repairs on elements under pressure or tension (springs, accumulators etc...) must only be carried out by
competent persons with standardized equipment.
SPECIAL SAFETY RECOMMENDATIONS
When changing the machine over from the work to the transport position or vice versa, danger of crushing and
shearing can exist.
Be especially careful and keep all persons away from vicinity of the machine when maneuvering.

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SAFETY DECALS
THE F LL WING SAFETY PICT RIALS HAVE BEEN PLACED N Y UR MACHINE IN THE AREAS
INDICATED. THEY ARE INTENDED F R Y UR PERS NAL SAFETY AND F R THE SAFETY F
THE PE PLE W RKING WITH Y U. THE TEXT SH WN N THEM GIVES THEIR PRECISE
MEANING. ENSURE THAT THESE PICT RIALS ARE ALWAYS LEGIBLE. IF THEY ARE N T,
REPLACE THEM.

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2
1
3
5
4

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During the first few hours of work, make frequent checks of tine nut and
bolt tightness. If necessary, retighten to 16 daNm (120 ft.lbs) to avoid
the possibility of loss or breakage.
7) Safety guards
The safety guards protect against acci-
dents and therefore ensure maximum
machine safety.
On the GF 5000 T, the front safety
guards (25) are fitted to the drawbar
(26) with 2 hexagon screws (27) (M 8 x
45) and 2 self-locking nuts (M 8) (photo
A). Tighten to a torque of 3 daNm (22
ft.lbs).
On the GF 5000 M, support (2) of front
safety guards (3) is fitted to the
connecting frame using 2 hexagonal bolts
(1) (M 10 x 30) and 2 self-locking nuts
(4) (M 10) (fig. B) (torque : 8 daNm -
59 ft/lbs). Then fit 2 front safety
guards (3) onto support (2) by means of
4 hexagonal bolts (18) (M 8 x 45) and 4
self-locking nuts (17) (M 8) (fig. B)
(torque : 3 daNm - 22 ft/lbs).
The side guards (11 and 12) are fitted to the outer rotor housings using 2 hexagon
screws (16) (M 12 x 25) and 2 conical spring washers (14) (M 12). They are also fitted
to the flanges of the outer tubes using the 2 self-locking hexagonal bolts (15) (M
12 x 40) (fig. C). Tighten the screws (16 and 15) to a torque of 10 daNm / 75 ft/
lbs) (photo 7).
Reflectors (6, 8) (GF 5000 M) or (19) (GF 5000 T) are to be fitted on supports
(7, 21) using bolts (9) (M 5 x 35) or (20) (M 5 x 25) and self-locking nuts (5)
(M 5), as shown on figure B.
Note : Reflectors are to be fitted so that their reflecting surface is located at
the rear, seen in direction of forward movement, when the machine is in
transport position.

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B
ATTACHMENT
ATTACHMENT TO THE TRACTOR
1. GF 5000 M
The GF 5000 M Gyrotedder can be fitted to all tractors equipped with a 3-point
linkage. The lower link pins are 22 mm diameter and 28 mm diameter for tractors
with Cat. 1 and 2 linkage. The lower link pins (O) should be attached to the
tractor link arms (P) inside the 3-point frame for Cat.1 tractors and on the
outside for Cat. 2 tractors. In the latter case, use the 25 mm diameter link
pins to attach tractor top link (Q) to the pivoting top link (B) (photo 10).
Attachment should be undertaken with the pivoting top link (B) unlocked (lever
V in the lower position, photo 11).
The pivoting top link has three attachment positions to suit varying tractor
top link lengths.

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2. GF 5000 T
The GF 5000 T gyrotedder can be
fitted to all types of tractors,
preferably those with a pull bar.
Attachment is facilitated when the
machine is resting on its parking
stand (A). Fold up parking stand (A)
and lock in place with the clip (G)
(photo 12).
When attaching the machine
to a tractor equipped with
a multi-hole attachment bar
on the 3-point linkage, make
sure the tractor lower links
are locked in a fixed posi-
tion preventing them from
moving upwards.
PTO SHAFT
Connect the PTO shaft (with the safety clutch fitted on the machine side)
(photos 10 and 12).
Make sure PTO length is correct :
1)When the PTO is in its maximum extended position, a minimum tube overlap of
300 mm (12") must be maintained.
2)When the PTO is in its maximum overlap position (retracted), tubes should
not butt against the yokes. As a safety measure a clearance of at least 2
cm (0.8") must be maintained. If this is not the case, shorten the two
transmission tubes and the two guard tubes by the same length (photos 13 and
14). Bevel and clean the tubes (photo 15) and grease the inside of the outer
tube (photo 16).

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3)Never operate the PTO at too great an angle (30° maximum)
These recommendations and adjustments must be respected to avoid
damage or premature wear of the PTO.
Never connect the PTO to the 1000 rpm (min-1 ) tractor drive.
To avoid accidents which could be serious, make sure that the guards
are always correctly in place and secured with the safety chain
(photos 10 and 12). Damaged guards should be replaced immediately.
13 14
15 16

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-First time over : when the crop has a high moisture content, the speed is
approximately 7-8 km/hr (4 1/2 - 5 mph)
-Second time over : the speed can reach 10-12 km/hr (6 1/2 - 7 mph) according to
the moisture content.
It is difficult to give accurate recommendations concerning operating speeds as these
must be chosen in accordance with the crop being worked. However, as a general rule,
if the crop is dry, rotor speed (rotational frequency) should be reduced. When the
crop is very long, heavy and wet, the forward speed should be reduced. In difficult
conditions such as these, it is generally adviseable to lower the forward speed and
increase the PTO speed (rotational frequency) .
TRANSPORT POSITION
1. GF 5000 M
- Disconnect the tractor PTO shaft.
- Lower the machine to the ground.
- Release lock (X) (photo 17) and fold
back the outer rotors until the locks
automatically reengage in the trans-
port position.
- Lift the machine and lock the pivoting
frame (B) by lifting lock (V) (photo
24).
Never engage the PTO shaft when the machine is in the transport position.
NOTE : Before moving the GF 5000 M when having been parked in the transport
position, unlock the outer wheels to allow them to pivot.
2. GF 5000 T
- Disconnect the tractor PTO shaft.
- In order to fold the machine correctly,
position the rotors horizontally using
crank handle (M) (photo 22).
- Release locks (X) (photo 17) and fold
back outer rotors until the locks
automatically reengage in transport
position.
- Lock outer rotor wheels (R) in posi-
tion holes (Y or Z, photo 21) so that
the levers (F) point forwards (looking
in the direction of travel) (photo
25). The central wheel lever (F)
should point towards the rear (looking
in the direction of travel) (photo
25).