KUHN GF 5001 TH User manual

ASSEMBLY / OPERATOR'S MANUAL
GF 5001 TH
GYROTEDDER
N° 95221 A.GB. - 06.2002

DEAR OWNER,
In buying a KUHN machine you have chosen wisely. In o i have gone years of hough ,
research and improvemen s. You will find, as have housands of owners all over he world, ha
you have he bes ha engineering skill and ac ual field es ing can produce. You have
purchased a dependable machine, bu only by proper care and opera ion can you expec o
receive he performance and long service buil in o i .
This manual con ains all he necessary informa ion for you o receive full efficiency from your
machine. The performance you ge from his machine is largely dependan upon how well you
read and unders and his manual and apply his knowledge. Please DO NOT ASSUME THAT
YOU KNOW HOW TO OPERATE AND MAINTAIN YOUR MACHINE before reading his
manual carefully. KEEP THIS MANUAL AVAILABLE FOR REFERENCE.
Your KUHN dealer will ins ruc you on he general opera ion of your machine. He is in eres ed
ha you ge he bes performance possible and will be glad o answer any special ques ions
ha may arise regarding he opera ion of he KUHN machine.
Your KUHN dealer can offer a comple e line of genuine KUHN service par s.
These par s are manufac ured and carefully inspec ed in he same fac ory ha builds he
machine o assure high quali y and accura e fi ing of any necessary replacemen s.
When ordering service par s i is impor an ha you indica e he ype of machine concerned
and i s serial number.
For his reason please comple e he model iden ifica ion pla e diagram below wi h he required
informa ion. This will provide you wi h an easy reference for fu ure service par s orders.
ABOUT IMPROVEMENTS
KUHN is con inually s riving o improve i s produc s and, herefore, reserves he righ o make
improvemen s or changes when i becomes prac ical o do so, wi hou incurring any
obliga ions o make changes or addi ions o he equipmen sold previously.

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CONTENTS
Page
Safety advice 2
Safety decals 9
Technical specifications 11
Assembly instructions 12
Attachment : - fitting to the tractor 16
- PT shaft 16
Work position and adjustments 18
perating speed 20
peration 20
Transport position 22
Parking the machine 22
Lubrication 24
ptional equipment 26
Conditions of limited warranty 28
Copyright 2002 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 5001 TH Gyrotedder must only be used for the work for which it has been designed : spreading and turning
pre-mowed fodder and straw. When fitted with a reduction gearbox, the GF 5001 TH can also be used for forming
small night swaths in order to reduce the amount of humidity getting into the crop overnight.
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 5001 TH 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 recommendations 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 drive 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, ensure that the machine cannot move
unexpectedly (secure with wedges if necessary).
2. Do not exceed the maximum allowable down pressure applied by the machine drawbar on the tractor hitch
point.
3. Ensure that vertical and horizontal pivot angles between machine tongue and tractor hitch point are sufficient
to allow safe operation.

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POWER TAKE-OFF
1. nly use 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.
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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HYDRAULIC SYSTEM
1. WARNING ! Hydraulic system is under pressure.
2. When fitting hydraulic motors or cylinders, ensure that connections have been made correctly, as per
manufacturers instructions.
3. Before connecting hoses to the tractor hydraulics, ensure that tractor and machine circuits are not under
pressure.
4. It is strongly recommended that the operator marks the hydraulic connections between tractor and machine
to avoid making a wrong connection. WARNING ! Functions could be reversed (for example : lift/lower).
5. Check hydraulic hoses regularly ! Worn or damaged hoses must be replaced immediately.
Replacement parts must be in accordance with manufacturers recommendations concerning specifications
and quality.
6. Should a leak be found, take all necessary precautions to avoid accidents.
7. Any liquid under pressure (particularly oil from hydraulics) can penetrate the skin and cause severe injury. If
injured, see a doctor immediately, there could be danger of infection.
8. Before any adjustments, maintenance or repairs are carried out, lower the machine, depressurize the circuit,
turn off the engine and remove ignition key.
TIRES
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.

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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 dama-
ged.
8. Spare parts used must be in accordance with specifications and standards as defined by the manufactu-
rer. 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
be competent persons with standardized equipment.

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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.
1

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2
3
4
56
7

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TECHNICAL SPECIFICATIONS
Attachment pull type
Number of rotors 4
Working width (Din. 11220) 5.00 m / 16'5"
Width in work position 5.43 m / 17'9"
Transport width 2.84 m / 9'4"
Length in transport position 2.55 m / 8'4"
Length in working position 2.55 m / 8'4"
Power requirement 15 kW / 20 hp
Weight with PT 430 kg / 946 lbs
Tyres 15 x 6.00 - 6
Tyre pressure 2 bars / 29 psi

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ASSEMBLY INSTRUCTIONS
1. Fitting outsi e rotor casings an hy raulic cylin ers (photo 1)
Place outer hinge (B) in the corresponding housing (I) ensuring that couplings are adjusted properly. Fingers
covered by cardboard tubes (J) must be positioned as shown in photo 1.
Insert pivot pins and secure in place using roll pins (K) (dia. 8 x 55 and dia. 5 x 55).
Coat fingers with grease and put flexible guard (N) in place.
Now mount cylinders (P) to central frame tubes (Q) using axles (R) and roll pins (T) (dia. 6 x 36) and fit grease
zerks on pivot pins.
2. Fitting the wheels (photo 2)
Fit the preassembled wheel assemblies (G) on rotor shafts marked with matching numbers and position them
so that the wheel columns (H) are directed towards the front. Secure with roll pins (F) (dia. 12 x 55 and dia.
7 x 55).
ATTENTION : Make sure that the roll pins are fitted 180° to each other and that the slots are facing the direction
of rotor axle (see drawing on photo 2).
3. Fitting the rawbar an crank han le (photo 3)
First fit cover (C) on tongue (U) by means of 4 self-locking screws (D) (M 12 x 30) and 4 self-locking nuts (M 12);
do not tighten.
Fit tongue assembly (U) to the mounting brackets positioned on either side of gearbox (S) using shaft (V) and
2 roll pins (X) (dia 8 x 40). Now tighten the 4 self-locking screws (D). Then connect crank handle (W) to its
mounting bracket (Y) with 1 bushing ( ) and 2 roll pins (dia. 6 x 30 and dia. 10 x 30).
4. Fitting the hy raulic hoses (photos 4 an 4 A)
Connect hydraulic hoses (1) to hydraulic cylinders (2) with a banjo, a restrictor bolt and 2 copper washers
(dia 14.5 x 22 x 1.5) as shown. Attach hydraulic hoses (1 and 3) to the tongue (4) with 5 clamp collars (5) (length
350 mm). Fit coupler support (6) to the drawbar with low nut (M18).
5. Fitting control cor s (photo 4 A)
Secure holder (7) to drawbar (4) with a hexagonal screw (8) (M8 x 35) and a self-locking nut (M8).
Use the cord (D 1) with a length of 1.4 m (4'7"). Thread it through plate (E). Thread each end of the cord through
lock arm (A) and tie a knot at each end.
Insert the other cord (D 2) with a length of 2.5 m (8'2") through plate (E) and tie a knot.
Thread the other end of cord (D2) through the eyelet of holder (7) and into handle (L). Tie a knot at desired length
so that locks can easily be maneuvered from the tractor seat. Cut off surplus cord at the knot and fit plug (M)
into handle (L).

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34
4A

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6. Fitting rear shiel s an rear parking stan (photos 5 an 6)
Install rear shields (P) on brackets (Q) with 4 self-locking screws (R) (M 8 x 20) and 4 self-locking nuts (M 8).
Then fit the preassembled parking stand (V) and the rear shields (P) on the parking stand bracket with 2 self-
locking screws (W) (M 12 x 30) and 2 self-locking nuts (M 12) (photo 6).
Install R-clip (X), then attach PVC cord (Z) on rear shield (P) (photo 6) and squeeze shut the ring.
7. Fitting triangular reflectors (photo 5)
Fit the two triangular reflectors (S) on each side of rear shield (P) using 4 flush screws (T) (M 5 x 35) and 4 self-
locking nuts (M 5) (photo 5).
8. Fitting guar s (photos 7 an 7 A)
Fit lateral guards (Y) on housings (U) of the outer rotors by means of 2 hexagonal bolts (C) (M 12 x 60) and 2
conical lock washers (M 12) (photo 7).
Install the front guards (A) on the mounting stubs of drawbar (E) with 4 hexagon bolts (H) (M 8 x 45) and 4 self-
locking nuts (M 8) as shown in photo 7 A.
Double check that plugs (I and J) are tightly in place (photos 7 and 7 A).
9. Fitting guar cone an its extension (photo 7 A)
Fit the guard extension (L) on the guard cone (M) and bolt this assembly on central gearbox using 2 hexagon
screws (M 10 x 16) and 2 flat washers (dia. 11 x 24 x 2).
10. Fitting tines an tine arms (fig. 8 an 9)
Fit the tine arms as shown in figure 8.
1 = self-locking screw M 12 x 30 2 = self-locking nut M 12
Tighten to a torque of 12 daNm (88 ft.lbs) (see items 1 and 2 on fig. 8)
There are two types of tines :
a) Tines for rotors which turn to the left (counter clockwise) : the KUHN marking is found on the longest finger
(see figure 9).
b) Tines for rotors which turn to the right (clock-wise) : the KUHN marking is found on the shortest finger.
Fit the tines (F) on the tine arms (B) in such a way that the longuest finger is on the ouside and the pressure from
the crop closes the spirals (the tines are facing in the direction of rotation "R" of the rotors) (fig. 9).
Make sure tines (F) are properly positioned into the stamped mark of tine arms (B). Then install deflectors (D),
insert hexagonal screws (A) (M 14 x 50), position washers (C) (dia. 14.5 x 35 x 7 mm) and tighten the self-locking
nuts (E) (M 14) to a torque of 16 daNm (118 ft.lbs) (item A, fig. 9).
During the first hours of work check tine nut and bolt tightness frequently. If necessary, retighten
to 16 daNm (118 ft.lbs) to avoid the possibility of loss or breakage (item A, fig. 9).

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ATTACHMENT
PTO SHAFT
Connect the PT shaft to the 540 pm (min-1) t acto d ive (with the safety clutch fitted on the machine side).
Make sure PT length is correct :
1) When the PT is in its maximum extended position, a minimum tube overlap of 300 mm (12") must be
maintained.
2) When the PT 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 11 and 12). Bevel and clean the tubes
(photo 13) and grease the inside of the outer tube (photo 14).
3) Never operate the PT at too great an angle (30° maximum).
These ecommendations and adjustments must be espected to avoid damage o p ematu e
wea of the PTO.
Neve connect the PTO to the 1000 pm (min-1) t acto d ive.
To avoid accidents which could be se ious, make su e that the gua ds a e always co ectly
in place and secu ed with the safety chains. On machine side attach the safety chain a ound
the d awba (photo 10 A). Wo n o damaged gua ds must be eplaced immediately.
FITTING TO THE TRACTOR
The GF 5001 TH 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 front parking stand (A). Adjust the height of the drawbar with the
crank (M) (photo 10).
Following the attachment, raise rear parking stand (R) (photo 10 A), dismount front parking stand (A) from the
drawbar, mount it onto the support (S) provided therefore and secure it in position with pin (E) (photo 10 A).
Connect hydraulic hose (F) to a female hydraulic connection at the rear of the tractor (photo 10).
A ANSI / ASAE 338.4 safety chain (Kit No K8004870) with a minimum ultimate system strength of 45kN
(10,100 lbf) is supplied as standard equipment with all towed machines for North America (USA and Canada).
Use this chain (C) (photo 10B) when towing the rake on a public road. It is intended to keep the machine under
control in the event of a loss or failure of the hitch pin (G) (photo 10B).

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10 10A
10B

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WORK POSITION AND ADJUSTMENTS
BEFORE CARRYING OUT ANY OPERATION SUCH AS MAINTENANCE OR ADJUST-
MENT ON THE MACHINE, STOP THE TRACTOR ENGINE, REMOVE IGNITION KEY
AND WAIT UNTIL ALL MOVING PARTS COME TO A COMPLETE STOP BEFORE
LEAVING THE TRACTOR.
KEEP ALL PERSONS AWAY FROM THE VICINITY OF THE MACHINE BEFORE PIVOTING
THE OUTER ROTORS INTO WORK POSITION.
To change the machine from the transport position to the work position, proceed as follows :
- Free the outer rotors by releasing locks (L). Turn rotors 180° so that their tines point towards the outside. Make
sure that locks (L) are secured into the work position (photo 15).
- Activate the tractor hydraulics to put hydraulic cylinders (V) under pressure.
- Release locks (R) (photo 15) from the tractor seat by pulling cord (C).
- Lower the outside rotors in working position by releasing pressure (photo 16).
- Use the valve detent to maintain the valve in position "release", or shift the valve into the free floating position
to allow the outer wings to travel up and down with respect to the ground countours.
Perfect rotor angle adjustment using crank handle (M) so that the tines lightly skim the ground at the front
(photo 17).