KUHN FC243 Operator's Manual

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OPERATOR'S MANUAL

Mower conditioner

FC243

KN123BGB C

- English - 02-2006

Dear Owner

Mower conditioner

FC243

$DEAR OWNER

In buying a Kuhn machine you have chosen wisely. Into it have gone years of thought, research and improvements. You will find, as have thousands of owners all over the world, that you have the best that engineering skill and actual field testing can produce. You have purchased a dependable machine, but only by proper care and operation can you expect to receive the performance and long service built into it.

This manual contains all the necessary information for you to receive full efficiency from your machine. The performance you get from this machine is largely dependent on how well you read and understand this manual and apply this knowledge. Please DO NOT ASSUME YOU KNOW HOW TO OPERATE AND MAINTAIN YOUR MACHINE before reading this manual carefully. KEEP THIS MANUAL AVAILABLE FOR REFERENCE. Pass it on to the next owner if you re-sell the machine.

Your KUHN dealer can offer a complete line of genuine KUHN service parts. These parts are manufactured and carefully inspected in the same factory that builds the machine to assure high quality and accurate fitting of any necessary replacements.



About improvements

We are continually striving to improve our products. It therefore reserves the right to make improvements or changes when it becomes practical to do so, without incurring any obligations to make changes or additions to the equipment sold previously.



Designated use of the machine

The FC243 mower conditioner must only be used for the work for which it has been designed: mowing on the ground of hay fields, grass silage fields and improved pastures for the purpose of harvesting fodder for feeding livestock.

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Contents

$CONTENTS

 Dear Owner..................................................................................................................... 1

 Contents .........................................................................................................................2

 Identification of the machine ........................................................................................ 4

Rear view .......................................................................................................................................... 4

Model identification plate................................................................................................................ 5

Optional equipments ....................................................................................................................... 5



Safety .............................................................................................................................. 6

Description of symbols used in this document ............................................................................ 6

Safety instructions........................................................................................................................... 7

Location and description of safety decals on the machine....................................................... 15

Road safety equipment and recommendations .......................................................................... 18



Machine specifications................................................................................................ 19

Description and glossary .............................................................................................................. 19

Technical specifications................................................................................................................ 20

Sound levels................................................................................................................................... 20



Putting into service...................................................................................................... 21

Description of control elements ................................................................................................... 21

Coupling and uncoupling.............................................................................................................. 21



Instructions for transport............................................................................................ 34

Putting the machine into transport position ............................................................................... 34

Conformity with the road regulations .......................................................................................... 35

Contents

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FC243



Instructions for work....................................................................................................36

Putting the machine into work position ...................................................................................... 36

Adjustments in working position .................................................................................................37

Machine use ................................................................................................................................... 46



Optional equipments....................................................................................................47

Swath shield extensions ............................................................................................................... 47

Wide spreading system................................................................................................................. 47



Maintenance and storage ............................................................................................48

Frequency chart............................................................................................................................. 48

Cleaning the machine.................................................................................................................... 49

Lubrication ..................................................................................................................................... 49

Maintenance................................................................................................................................... 55

Storage ........................................................................................................................................... 64



Trouble shooting guide................................................................................................65

 Limited warranty...........................................................................................................66

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FC243

Identification of the machine

$IDENTIFICATION OF THE MACHINE

1. Rear view

Identification of the machine

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FC243

2. Model identification plate

Please write below the type and serial number of the machine. This information is to be indicated to the dealer for all spare parts orders.

Type: FC243

No:

3. Optional equipments

Tick box corresponding to the equipment fitted on your machine:

 Kit no. 1076240: Swath shield extensions.

 Kit no. 1076140: Wide spreading.

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Safety

$SAFETY

1. Description of symbols used in this document

This symbol indicates a potentially hazardous situation that if not avoided, could result in serious bodily injury.

This symbol is used to identify special instructions or procedures which, if not followed strictly, could result in machinery damage.

This symbol is used to communicate technical information of particular interest.

Safety

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FC243

2. Safety instructions

 Read and follow the safety instructions

Before using the machine, carefully read all the safety instructions in this manual and the warnings placed on the machine.

Before starting work, the operator must be familiar with all machine controls, handling devices and their functions. It is too late to learn once work has been started!

Never let anyone operate the machine who is not trained to do so.

Should you have any difficulties in understanding certain parts in this manual, please contact your KUHN dealer.

 Precautions to be taken before carrying out

any operations on the machine

Before leaving the tractor or before adjusting, maintaining or repairing the machine, disengage the PTO drive, turn off the engine, remove ignition key and wait until all moving parts have come to a complete stop.

 Introduction

The machine must only be operated, maintained and repaired by competent persons who are familiar with machine specifications and operation and aware of safety regulations for preventing accidents.

The operator must imperatively respect safety instructions in this manual and in the warnings posted on the machine. The operator is also obliged to respect current legislation concerning accident prevention, work safety and public traffic circulation.

Designated use of the machine also means following operation, maintenance and repair recommendations given by the manufacturer, and using only genuine spare parts, equipment and accessories, as recommended by the manufacturer.

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.

The manufacturer is not held liable for any damage or accidents 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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Safety

 Precautions to take before using the

machine

Do not wear loose clothing which could become caught up in moving parts.

Wear the appropriate protective clothing for the work in hand (gloves, shoes, goggles, helmet, ear-protectors, etc.).

Make sure that all operating controls (ropes, cables, rods, etc) are placed so that they cannot be set off accidentally, risking accident or damage.

Before operating the machine, check tightness of nuts and bolts, particularly on fixing elements (tines, forks, blades, knives, etc). Retighten if necessary.

Before operating the machine, ensure that all the safety guards are firmly in place and in good condition. Immediately replace any worn or damaged guard.

 Precautions when driving

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 the utmost importance to be cautious in every given situation.

Groundspeed must be adapted to ground conditions as well as to roads and paths. Always avoid abrupt changes of direction.

Be particularly cautious when turning corners, paying attention to machine overhang, length, height and weight.

Never use a narrow track tractor on very uneven or steeply sloping ground.

Never leave the tractor seat while the machine is operating.

Carrying people or animals on the machine when working or in transport is strictly forbidden.

Safety

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

Precautions when driving on public roads

Dimensions

Depending on the dimensions of the machine, contact the relevant authorities to ensure that it can be legally transported on public roads.

If the machine is over the maximum legal size, follow the local regulations for special transports of oversize equipment.

Gross weight and weight per axle

Check that the tractor's authorized gross weight as well as its lift capacity and maximum weight per axle are not surpassed.

The front axle load (1) must never, under any circumstances, be less than 20% of the tractor's unladen weight. If necessary, add ballast weights to the front or to the rear to preserve the steering and braking efficiency.

Transport position

Before transporting the machine on public roads, place the machine into its transport position, according to the instructions in this manual.

Lightings and signallings

Before transporting the machine on public roads, ensure that all legally required lightings and signallings are in place.

Ensure that lightings and signallings are clean and in good working order. Replace any missing or broken equipment.

 Maximum speed

Always keep to the legal speed limit for driving a tractormachine assembly on public roads.

Always obey current regulations for driving on roads.

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Safety

 Precautions when coupling

Before attaching the machine, make sure that it cannot accidentally start moving (chock the wheels) and that the parking stand is in the right position.

The machine must only be attached to the hitch points provided for this purpose.

Never stand between the tractor and the machine when operating the rear remote control lever of the three point linkage.

Do not stand between the tractor and the machine without ensuring that the parking brake is applied.

 Hydraulic circuit

Beware! The hydraulic circuit is under pressure. Maximum pressure at work: 200 bar.

Before connecting hoses to the tractor hydraulics, ensure that tractor and machine circuits are not under pressure. Before disconnecting a hose, depressurize the hydraulic circuit.

To avoid making wrong connections, mark hydraulic couplers and corresponding hoses with colours. WARNING! Functions could be reversed (for example: lift/lower) and cause accidents.

Regularly check the hydraulic hoses. In case of normal wear, replace the hydraulic hoses every 5 years. Damaged or worn hoses must immediately be replaced. When replacing the hydraulic hoses, make sure to use hoses with the specifications and quality recommended by the manufacturer of the machine.

To locate a leak, use appropriate means. Protect body and hands from liquid under pressure.

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. Before any adjustments, maintenance or repairs are carried out, lower the machine on the ground, depressurize the hydraulics, turn off the engine, remove ignition key and wait until all moving parts have come to a complete stop.

Safety

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

PTO shaft

Use only PTO shafts supplied with the machine or recommended by the manufacturer.

The protective shield of the tractor PTO stub, the PTO shaft guards and the protective covering of the machine input shaft must always be in place and in good condition.

Make sure that the PTO shaft guards are secured with the safety chains provided.

Any worn or damaged protection must be replaced immediately. A worn guard or an unprotected PTO shaft can cause a serious or even a lethal accident.

Do not wear loose clothing that could be caught in the rotating PTO shaft.

Before attaching or removing a PTO shaft, or before doing any work on the machine, disengage the PTO drive, turn off the engine, remove ignition key and wait for all moving parts have come to a complete stop.

If the primary PTO shaft is equipped with a slip clutch or a free wheel, these must be fitted on the machine side.

Ensure that the PTO shaft is always correctly fitted and locked into place.

Before connecting the PTO shaft, ensure that the PTO speed (rotational frequency) and directions of rotation are in line with manufacturer's recommendations.

Before engaging the PTO drive, make sure all people and animals are clear from the machine. Never engage the PTO drive when the tractor engine is stopped.

When uncoupling the machine, rest the PTO shaft on the support specially provided, and replace protective cover on the PTO stub of the tractor.

Read and follow the instructions in the operator's manual provided with the PTO shaft.

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Safety

 Precautions during manoeuvres

When moving the machine from the transport position to the working position and vice versa, make sure that nobody is within the machine pivoting area.

 Remote controlled components

Danger of crushing and shearing can exist when components are operated by hydraulic or pneumatic controls. Keep away from these danger zones.

 Tyres

Regularly check the tyre pressure. Respect manufacturer's recommendations on tyre pressure. Assembly, disassembly and repair of wheels and tyres must only be carried out by competent persons who are equipped with standardized tools. Before any work is performed on the wheels, ensure that the machine rests on the ground and is perfectly stable so that it cannot move accidentally (put chocks in place).

 Safety decals

Safety warning decals to respect, are placed in pictorial form on various parts of the machine. They are there to warn you of potential dangers and to tell you how to avoid accidents.

Always keep the safety decals clean and readable, and replace them when they are worn, damaged, missing or illegible.

 Waste disposal

Respect the environment! Never spill pollutants (oil, grease, filters etc.) on the ground neither pour them down the drain or discard them in any other place where they could pollute the environment. Never throw away or burn a tire. Always take waste to specialized recycling or waste disposal centers.

Safety

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FC243



Precautions for maintenance and repair work

Rest the machine on the ground, release the pressure from the hydraulic circuit and leave the machine to cool down.

Make sure that the parts of the machine that need to be lifted for maintenance or repair work are firmly propped up.

Before any work is done on the electric circuit or before any electric welding is carried out on the attached machine, disconnect the machine from the tractor electrical circuit. Also disconnect alternator and battery terminals.

Repairs on elements under pressure or tension (springs, pressure accumulators, etc.) must only be carried out by competent persons with regulation equipment.

Wear the appropriate protective clothing for the work in hand (gloves, shoes, goggles, helmet, ear-protectors, etc.).

Do not solder, weld or use a blow torch near fluids under pressure or inflammable products.

For your own safety and for correct machine operation, only use original manufacturer parts.

It is strongly recommended to have your machine checked by your Kuhn dealer after each season, especially tools and their attaching hardware.

 Projection of stones and foreign objects

For driver safety, always use a tractor equipped with a cab. Keep the ground to mow free of foreign bodies. Avoid mowing on stony or rocky grounds. If this is not possible, take extra safety precautions, such as

- Fit polycarbonate screens inside the tractor cab's side and rear windows, or install narrow mesh guards on their exterior.

- Increase the cutting height to avoid contact with stones or rocks.

Never start a mower conditioner when other people are close.

Even when the machine is used in accordance with its purpose, objects may be projected. Stones and other foreign objects projected by the moving parts can travel a considerable distance. Keep all persons and animals away from the danger zone.

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FC243

Safety

The protection covers help reducing risks of projections. Therefore, make sure that all mower protection devices are in place and good condition prior to using the machine.

Regularly check the condition of the protection covers. Immediatly replace any worn, damaged or missing cover.

 Precautions for machine use

After each use, check the cutting tools (discs, knives) and their attachment hardware in accordance with the instructions given in the present manual. Immediately replace any worn, damaged or missing cutting tool or element. To do this, use the tool outfit supplied with the machine. For your safety, only use genuine parts !

Regularly check the condition of the protection covers. Immediatly replace any worn, damaged or missing cover. Before engaging the PTO, rest the cutterbar on the ground. Make sure all the guards are in place. Keep all persons and animals away from the danger zone.

Stay a safe distance from the machine when the cutting tools are in movement.

Never work in reverse.

After disengaging the PTO drive, cuttings tools can continue rotating for some time. Stay away from the machine until all moving parts have come to a complete standstill.

If the machine hits an obstacle, disengage the PTO drive, stop the tractor engine, remove the ignition key and wait for all moving parts to come to a complete standstill. Check the entire machine for any damage before resuming work.

Safety

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FC243

3. Location and description of safety decals on the machine

 Location of safety decals

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Safety

 Description of safety decals

Operating instructions (1)

The operator's manual contains all the information necessary for using the machine safely. It is imperative to read and comply with all instructions.

Working on the machine (2)

Projections (3)

Stones and other debris projected by the moving parts can travel a long distance. The protection covers must always be in position and in good condition. Always stay at a safe distance from the machine.

Crushing area (4)

Never operate in an area where there is a crushing risk before all moving parts have come to a complete stop.

Safety

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FC243

Manoeuvring area (5)

Stay a safe distance from the machine. Crushing hazard.

Rotating cutting tools (6)

Keep away from the mower knives all the time the engine is running, the PTO drive engaged and the moving parts have not come to a complete stop.

Cutting tools (7)

The cutting tools and their attachment hardware meet safety and reliability criteria set by standards and by the manufacturer. For your own safety and for correct machine operation, only use original manufacturer parts.

Do not step on the machine (8)

Do not step on the machine : Risk of falling or damaging the protection device.

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Safety

4. Road safety equipment and recommendations

The road safety equipment is mounted in the factory or by your authorized dealer according to current safety regulations.

The device is composed of:

- A signalling light (1).

- A signalling panel (2).

- A reflector (3).

Always keep to the legal speed limit for driving a tractormachine assembly on public roads.

Machine specifications

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FC243

$MACHINE SPECIFICATIONS

1. Description and glossary

1 : Check chain 2 : Hydraulic valves 3 : Conditioning hood 4 : Gauges 5 : Connecting frame 6 : Hitch pins 7 : Cutterbar 8 : Central gearbox 9 : Right swath shield 10 : Compensation cylinder

11 : Hydro-pneumatic accumulator 12 : Side gearbox

13 : Work/transport cylinder 14 : Parking lock

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Machine specifications

2. Technical specifications

3. Sound levels

Attachment type 3 point, Category 2

Number of discs 6

Working width 2.40 m (7’10’’)

Width in working position 4.55 m (14’11’’)

Height in working position 1.12 m (3’8’’)

Length in working position 1.93 m (6’4’’)

Width in transport position 2.17 m (7’1’’)

Height in transport position 1.62 m (5’4’’)

Length in transport position 4.01 m (13’2’’)

Disc rotational speed 2986 min

-1

Rotor speed 615 and 888 min

-1

Rotor width 1.90 m (6’3’’)

PTO speed 540 min

-1

Weight 852 kg (1878 lb) (approximately)

Minimum PTO power requirement 51 kW (70 hp)

Swath width from 0.90 to 1.80 (5’10’’ - 2’11’’) m (approximately)

Sound levels have been measured in accordance with the measuring methods as defined in:

NF EN 1553

"Agricultural machinery - Self-propelled, mounted, semi-mounted and trailed - Common safety recommendations"

Weighted equivalent continuous acoustic pressure level at the driver's seat (closed cabin) L (A) eq:

Tractor only: 72.9 dB(A) Tractor + machine: 78.2 dB(A)

Putting into service

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$PUTTING INTO SERVICE

1. Description of control elements

The machine is fitted with a release cord operated from the tractor cab.

The machine is supplied with an 18 mm box wrench (1) to carry out certain adjustment and maintenance tasks.

2. Coupling and uncoupling

The machine adapts to tractors fitted with a 3 point linkage category 2.



Description of coupling elements

- A PTO shaft 1 3/8’’ - 6 splines.

- A check chain.

- A release cord.

- Two hydraulic hoses which control the machine transport/work position setting.

- An 7-pin electric plug for the electrical signalling equipment.

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Putting into service

 Preparing the tractor

The tractor PTO stub must rotate at a speed of

540 min

-1

The tractor must be fitted with a double acting hydraulic outlet.

Check that the tractor's authorized gross weight as well as its lift capacity and maximum weight per axle are not surpassed.

The tractor must be fitted with lower link stabilizers.

Putting into service

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

Preparing the machine

Linkage adjustment

- Measure dimension A.

If measure A is below 2.10 m (6’11’’):

- Place lower links in position (a).

- Adjust machine lower hitch pin position:

• Unscrew the 8 bolts (3).

• Position hitch pin (1) at measure A = 10 mm (0.4’’).

• Tighten 4 hitch pin screws (1). Torque:

21 daN m (155 lbf ft).

• Position hitch pin (2) at measure B = 825 mm (2’8’’)

• Tighten 4 hitch pin screws (2). Torque:

21 daN m (155 lbf ft).

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Putting into service

If measure A is comprised between 2.10 m and

2.30 m (6’11’’ - 7’7’’):

- Place lower links in position (b).

- Adjust machine lower hitch pin position:

• Unscrew the 8 bolts (3).

• Centre hitch pin (1) with regards to the mounting plate.

• Tighten 4 hitch pin screws (1). Torque: 21 daN m (155 lbf ft).

• Position hitch pin (2) at measure B = 825 mm (2’8’’).

• Tighten 4 hitch pin screws (2). Torque: 21 daN m (155 lbf ft).

Putting into service

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If measure A exceeds 2.30 m (7’7’’):

- Place lower links in position (c).

- Adjust machine lower hitch pin position:

• Unscrew the 8 bolts (3).

• Position hitch pin (2) at measure A = 10 mm (0.4’’).

• Tighten 4 hitch pin screws (2). Torque: 21 daN m (155 lbf ft).

• Position hitch pin (1) at measure B = 825 mm (2’8’’).

• Tighten 4 hitch pin screws (1). Torque: 21 daN m (155 lbf ft).

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Putting into service

 Coupling the machine

Lower the tractor three-point linkage.

Adjust levelling rods to position draft arms as close as possible below the hitch pins (A = 30-50 mm (12’’) maximum).

Lift the tractor lift linkage to connect the draft arms to the hitch pins.

Attach top link:

- Use tractor and machine link holes to adjust the parallelism between the top link and the lower links.

This procedure provides maximum machine clearance in transport position.

Putting into service

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

HYDRAULIC Connections

Connect the 2 hydraulic hoses of the transport/work cylinder to a double acting valve with float position.

 Electrical CONNECTIONS

Connect 7-pin plug to the tractor.

 Fit check chain

See section: ’’Frame height and check chains’’.

The machine hydraulic suspension circuit is pressurized at the factory.

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Putting into service

 Primary PTO shaft

The tractor PTO stub must rotate at a speed of

540 min

-1

Separate the two half PTO shafts and connect them to the machine's input shaft and to the tractor PTO stub.

Check the length of the PTO shaft:

- When the PTO shaft is in its maximum overlap position (retracted), tubes should not butt against the yokes. As a safety measure, a clearance (L) of at least 25 mm (1’’) must be maintained.

- When the PTO shaft is in its maximum extended position, the tube overlap must be more than 250 mm (10’’).

If this is not the case:

• Mark length (H) to cut when the transmission is the

maximum overlap position.

• Shorten the guard tubes and the transmission tubes

by the same length.

• Bevel and clean the tubes.

• Grease the inside of the outer tube.

Never operate the PTO shaft at an angle X exceeding 30°.

Make sure that the PTO shaft is correctly adjusted, to avoid premature wear and tear.

To avoid serious accidents, the PTO drive shaft guards must be properly in place and fixed with the chains provided.

Putting into service

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FC243

On machine side, attach guard chain to the headstock hole.

 Secondary PTO shaft

Friction slip clutch

The secondary PTO transmission shaft is fitted with a friction slip clutch.

Uncouple secondary PTO shaft on friction slip clutch side.

Immediately replace any worn or damaged guard.

Before adjusting, maintaining or repairing the machine, turn off ignition key and wait until all moving parts have come to a complete stop.

Before the machine is put into service and after a long period of non-use, check the function of slip clutch to ensure it is not locked up.

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Putting into service

- Tighten nuts to release the friction discs.

- Rotate the torque limitor's hub a few turns.

- Thread nuts away until they bottom against the threaded studs.

The friction slip clutch is ready to function.

Putting into service

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

Adjusting the machine

Positioning of lower links

- Measure dimension A.

- Adjust tractor lower link stabilizers to measure A = 50 mm (2’’).

Hitch pin parallelism

From the transport position:

- Pull on cord to release latch.

- Activate the transport/work cylinder control valve in the "pivot into work" position.

The machine takes up the headland turn position.

Measure and adjust the height of the hitch pins until the same measure is obtained on each side:

- Note the difference in height between the two hitch pins.

Place the machine in transport position:

- Pull on cord to release latch.

- Activate the transport/work cylinder to bring the mowing unit in transport position.

- Rest cutterbar on the ground.

Adjust the tractor left levelling rod according to the difference in height.

Place the machine in headland turn position.

Check the difference in height between the 2 hitch pins.

Proceed the same way to obtain identical (A) and (B) heights.

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Putting into service

Frame height and check chains.

- Tractor fitted with a hydraulic position control function:

• Lower the tractor lift linkage so that hitch pins are at a distance H = 400 mm (1’4’’) from the ground.

• Note the corresponding lever position in the tractor cab.

Tractor not fitted with a hydraulic position control function:

• Lower tractor lift linkage until hitch pins are at a distance (H) slightly over H = 400 mm (1’4’’) from the ground.

• Insert hook (1) in check chain link corresponding to the required frame height and lock using roll pin (2).

• Attach each check chain with its hook supplied with the machine to one of the upper free holes at the tractor's top link attachment clevis.

• Lower the machine until the check chain is under tension.

The tractor lift linkage is in working position.

The height is correct when:

• The cutterbar is resting on the ground.

• The check chain is under tension.

• The distance H = 400 mm (1’4’’).

• The 2 hitch pins are parallel to the ground.

It is not necessary to use the check chain supplied with the machine.

Refer to the decal fitted on the machine to check the distance between the hitch pins and the ground.

Putting into service

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

Uncoupling the machine

- Place the machine in transport position.

- Lower the tractor three-point linkage to rest the machine on the ground.

- The lock (1) must be in contact with limiter (2).

- Uncouple and place PTO shaft in support (1).

- Disconnect and store hydraulic hoses on holder (2).

- Disconnect and store 7-pin plug in its holder (3).

- Detach the top link from the machine end.

- Uncouple the lower links.

- Lower the tractor three-point linkage.

The machine is uncoupled.

For tractors not fitted with a hydraulic position control function, unhook and attach check chain to its support.

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Instructions for transport

$INSTRUCTIONS FOR TRANSPORT

1. Putting the machine into transport position

From the working position:

- Lift the machine with the tractor's three point linkage.

- Pull the release cord until transport lock is released.

- Activate the transport/work cylinder to bring the mowing unit in transport position.

-Release cord.

- The machine automatically locks in transport position.

The machine is in transport position.

Before placing the machine into transport position:

- Wait until the rotating parts have come to a complete stop.

- Check that nobody is within the machine pivoting area.

- If there is someone, make sure the person moves away.

If the torque limiter has become very hot due to slippage, wait for it to cool down before pivoting the machine into transport position.

Never engage the tractor PTO drive when the machine is in transport position.

Instructions for transport

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2. Conformity with the road regulations

Check that the signalling panels are clean and that the lighting equipment functions before going on public roads.

Before driving onto a main road, ensure that upper edge of signalling panel is not more than 1.5 m (4’11’’) m from the ground.

Before driving the machine on public roads, ensure that the machine meets current highway code regulations.

If the machine is adjusted for wide spreading, completely fold the right swath shield inwards underneath the conditioning hood to reduce the machine dimensions.

Immediately replace any worn or damaged signalling panels or lights.

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Instructions for work

$INSTRUCTIONS FOR WORK

1. Putting the machine into work position

From the transport position:

- Pull the release cord until transport lock is released.

- Activate the transport/work cylinder control valve in the "pivot into work" position.

The machine is in headland turn position.

- Lower the tractor three-point linkage: H = 400 mm (1’4’’).

The machine is in working position.

Before placing the machine in working position:

- Wait until the rotating parts have come to a complete stop.

- Check that nobody is within the machine pivoting area.

- If there is someone, make sure the person moves away.

If the tractor is fitted with a hydraulic valve with adjustable flow rate, reduce oil flow to limit pivoting speed.

Instructions for work

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2. Adjustments in working position

 Cutting height

The desired cutting height is obtained directly by adjusting the top link length. The height can be adjusted between 30 and 80 mm (1.1’’ - 3.1’’) depending on the tractors.

To obtain a different cutting height:

- Place the machine in transport position.

- Lower the machine on the ground to remove weight from the top link.

- Modify the top link length to alter the machine tilt angle.

- Place the machine in working position to check cutting height.

If the tractor is fitted with a hydraulic top link, the machine tilt angle can be adjusted in working position.

The maximum cutting height (L1 = 80 mm (3.1’’)) is obtained when the discs are parallel to the ground.

The minimum cutting height must not be below (L2 = 30 mm (1.1’’)).

Too low a cutting height can lead to:

Excessive disc and knife wear.

Crop being contaminated by soil.

Delay in regrowth.

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Instructions for work

 Ground pressure

The mowing unit suspension is obtained by a hydropneumatic accumulator. In modifying the accumulator's pressure, the mowing unit's cushioning varies.

The hydro-pneumatic accumulator system also operates the "safety breakback " function.

In case an obstacle is struck:

- The suspension pressure increases in order to decrease the ground pressure.

- The mowing unit can pivot up to 25° to the rear.

- Once the obstacle is passed, the mowing unit automatically regains its initial position.

To check the ground pressure:

- Place the machine in working position.

- Check that the chassis height is correct: H=400mm(2’).

- Check the pressure given on the gauge:

• NORMAL operating pressure = 105 bar (1520 psi).

• MINIMUM operating pressure = 95 bar (1380 psi).

• MAXIMUM operating pressure =

120 bar (1740 psi).

- The pressure must be adapted to the nature and moisture level of the ground.

The ground pressure adjustment determins the safety breakback adjustment:

- Example: when the pressure in the gauges

increases, the mowing unit ground pressure decreases and the breakback force increases.

In case an obstacle has been struck, check that the mowing unit has not been damaged.

Never adjust machine to a pressure not comprized between these limit values.

Instructions for work

Mower conditioner

FC243

Pressure adjustment

Increase pressure in the hydro-pneumatic accumulator:

- Place the machine in working position.

- Open the hydraulic valve using the 18mm box spanner supplied with the machine. Position (a).

- Activate the transport/work cylinder control valve in the "pivot into work" position.

- Check the pressure increase indication on the gauge.

- When the required pressure is reached, close the valve. Position (b).

Reduce pressure in the hydro-pneumatic accumulator:

- Stop the tractor engine.

- Open the valve using 18 box spanner supplied with the machine.

- Activate the transport/work cylinder control valve in the "pivot into transport" position.

- Check the pressure decrease indication on the gauge.

- When the required pressure is reached, close the valve. Position (b).

The following adjustments do not cause the machine to move.

Position (a): Circuit open (Adjustment)

Position (b): Circuit closed (Work and transport)

The valve must only be in open position for pressure adjustments.

Mower conditioner

FC243

Instructions for work

 Finger conditioning rotor speed

The machine is equipped with a finger conditioning rotor. The rotor speed can be set at 888 min

-1

or 615 min-1.

The machine is factory set at a rotor speed of 888 min

-1

Rotor speed adjustment:

With the machine in transport position.

Remove self-locking nut of pivoting guardrail using the box spanner supplied with the machine (1).

Pivot guardrail tube (2).

Remove the 3 self-locking nuts using box spanner.

Remove belt guard.

Always place the machine in transport position before making rotor speed (rotational frequency) adjustments.

Turn off the engine, remove ignition key and wait until all moving parts have come to a complete stop.

Instructions for work

Mower conditioner

FC243

Loosen the 2 pulley mounting bolts using box spanner.

Loosen belt tensioning bolt using box spanner (1).

Remove belt tensioning bolt from its holder.

Tip over jockey pulley (2).

Remove the 3 V-belts.

Remove bolts and washers.

Exchange pulleys.

Mower conditioner

FC243

Instructions for work

- Reinstall bolts and washers without tightening them.

- Reinstall belts on pulleys.

- Reinstall belt tensioning bolt and washer on its support.

- Tighten belt tensioning bolt using box spanner until the spring is completely compressed.

- Tighten pulley bolts using box spanner:

- Torque to 12 daN m (89 lbf ft).

- Reinstall the belt guard.

- Check that the guard is engaged inside the rigid beld guard.

- Tighten the self-locking nuts using box spanner.

- Pivot guardrail tube.

- Tighten self-locking nut of pivoting guardrail using box spanner.

Handle pulleys with care. Pulleys must slide on their respective shafts

without effort. If this is not the case, clean and coat the mating surfaces with grease before sliding the pulleys on their shafts.

Refer to the pictorial applied on the machine to check the pulley position with regards to the rotor speed.

Instructions for work

Mower conditioner

FC243



Conditioning intensity

Several factors govern the conditioning intensity adjustment:

Conditioning rotor speed

See section "Finger conditioning rotor speed".

Control lever (1)

The lever sets the conditioning hood in relation to the rotor in 6 positions.

To increase the conditioning intensity, reduce the distance between the conditioning hood and the conditioning rotor.

To reduce the conditioning intensity (for mowing leguminous for example), increase the distance between the conditioning hood and the conditioning rotor.

Before adjusting, maintaining or repairing the machine, turn off ignition key and wait until all moving parts have come to a complete stop.

Refer to the pictorial applied on the machine to check the lever direction of operation with regards to the required conditioning intensity.

Mower conditioner

FC243

Instructions for work

Conditioning comb

The angular position of the comb in relation to the conditioning hood also enables altering the conditioning intensity:

• Remove the bolt.

• Position the comb in one of the 3 positions.

• Reinstall the bolt.

Conditioning hood pivot point

The conditioning intensity can be increased by using the second conditioning hood pivot point.

The pivot point reduces the distance (E) between the upper part of the hood and the rotor by 25 mm / 1’’mm.

The conditioning hood is factory fitted as shown below.

Adjustment

Remove 2 pins (2).

Remove the guard attachment tube (1).

During the season, check that the conditioning comb is not blocked up by foreign material.

Clean the conditioning comb to keep its efficiency.

If conditioning is too intensive, the crop's nutritional value and yield may decrease.

Instructions for work

Mower conditioner

FC243

Fold the front guard cover (1).

Remove 2 bolts (1).

Pivot and position the conditioning hood opposite the free hole.

Reinstall bolts (1).

Reassemble the unit.

 Swathing system

The swathing system comprises:

- 2 swath shields.

Swath width adjustment:

- Loosen 2 handles (1):

• Pivot swath shields inwards to reduce the swath width (a).

• Pivot swath shields outwards to increase the swath width (b).

- Tighten 2 handles (1).

The swath width can be adjusted of approximately 0.90 m (2’11’’) to 1.40 m (4’7’’).

Mower conditioner

FC243

Instructions for work

3. Machine use

Before the machine engages the crop:

- Engage the tractor PTO and slowly increase the speed up to 540 min

-1

 Groundspeed

Before mowing and to reduce risks of projections, lower the front guard.

Keep all persons and animals away from the machine danger zone.

Never lean or step on the protection cover.

Adapt the forward speed to the working conditions.

Optional equipments

Mower conditioner

FC243

$OPTIONAL EQUIPMENTS

1. Swath shield extensions

Kit no. 1076240

The swath shield extensions enable reducing the swath width to approximately 1 m (3’3").

2. Wide spreading system

Kit no. 1076140

The wide spreading kit is used to spread out crop in even layers.

Mower conditioner

FC243

Maintenance and storage

$MAINTENANCE AND STORAGE

1. Frequency chart

Before adjusting, maintaining or repairing the machine, turn off ignition key and wait until all moving parts have come to a complete stop.

After the

first 10

hours of

use

Every 30

hours

Every 50

hours

Every 200

hours or at

the end of

the season

Oil change:

- The cutterbar.

- The side angle gearbox.

- The central gearbox.

Oil:

- The moving parts and pivot points.

Grease:

- The mowing unit compensation cylinder ball joint.

- the cutterbar connecting frame pivot pin.

Maintenance and storage

Mower conditioner

FC243

2. Cleaning the machine

Regularly clean the build up between the conditioning hood and the carrying frame tube:

- Remove the split pins on both tube ends.

- Remove the rear part of the protection cover.

- Clean and reassemble the unit.

3. Lubrication

Except for the secondary PTO shaft lubrication, the machine must be placed in transport position for all maintenance operations (knife replacement, lubrication, etc).

Clean grease nipples before greasing.

Lubricate with SHELL multi-purpose grease grade NLGI 2.

Mower conditioner

FC243

Maintenance and storage

 PTO shaft

Primary PTO shaft

- Every 8 hours:

• universal joints (1).

• transmission tube (2).

• guide rings (3).

Secondary PTO shaft

Every 8 hours:

- universal joints (1).

- transmission tube (2).

• Slide the black collar.

• Turn the 2 PTO shaft guard tubes.

• If necessary, rotate a disc to access the grease zerk.

• Slide the black collar back in place when lubrication has been completed.

- guide rings (3).

Place the machine in working position.

Stop the tractor engine and remove ignition key.

Maintenance and storage

Mower conditioner

FC243



Cutterbar draining and refilling

From the transport position:

- Lift up the front guard.

- Remove the inner skid shoe (1) on drive side.

- Place a container of sufficient capacity under the lower cutterbar end.

- Remove filler plug (2) and its washer.

- Raise cutterbar on opposite side of drain plug.

- Remove drain plug (3) and its washer.

- Allow oil to drain completely.

- Wait for dripping to stop.

- Clean and reinstall drain plug (3) and its washer. Replace if necessary.

- Pour the correct oil quantity and quality through the opening of the filler plug.

- Clean and reinstall filler plug (2) and its washer. Replace if necessary.

Before draining oil, operate the machine for a few minutes so that the oil warms up.

The cutterbar is lubricated with 1.70 L (0.45 US gal) of SHELL SPIRAX A extreme-pressure gear oil with viscosity grade SAE 80W90 and API grade GL5.

When draining and refilling, it is recommended to use either a mineral base oil with viscosity grade SAE 80W90 and API grade GL5, or a synthetic base oil, type PAO (Poly-Alpha-Olefins) with a viscosity grade equivalent to SAE 80W90.

Never use an oil of viscosity SAE 90 in the cutterbar.

For safety reasons, hook check chain as high as possible.

Mower conditioner

FC243

Maintenance and storage

 Lateral gearbox draining

- Remove dipstick plug (1).

- Place a container of sufficient capacity under drain plug.

- Remove drain plug (2).

- Allow oil to drain completely.

- Wait for dripping to stop.

- Clean and reinstall drain plug (2). Replace it if necessary.

- Pour the correct oil quantity and quality through the opening of dipstick plug (1).

- Check angle gearbox oil level:

• The "MAX" level corresponds to the mark on the

dipstick plug.

• The "MIN" level corresponds to the end of the

disptick plug.

Before draining oil, operate the machine for a few minutes so that the oil warms up.

The angle gearbox is lubricated with 0.9 L (0.23 US gal) of SHELL SPIRAX A extreme-pressure oil for mechanical transmissions with viscosity grade SAE 80W90 and API grade GL5.

Maintenance and storage

Mower conditioner

FC243



Central gearbox draining

- Remove filler plug (1).

- Place a container of sufficient capacity under drain plug.

- Remove drain plug (2).

- Allow oil to drain completely.

- Wait for dripping to stop.

- Clean and reinstall drain plug (2). Replace it if necessary.

- Pour the correct oil quantity and quality through the opening of the filler plug (1).

- Check central gearbox oil level.

• The oil must reach the lower edge of the filling hole.

- Clean and reinstall filler plug (1) and its washer. (Replace if necessary).

Before draining oil, operate the machine for a few minutes so that the oil warms up.

The angle gearbox is lubricated with 2.3 L (0.6 US gal) of SHELL SPIRAX A extreme-pressure oil for mechanical transmissions with viscosity grade SAE 80W90 and API grade GL5.

Mower conditioner

FC243

Maintenance and storage

 Lubricate the following parts

Oil:

- The moving parts and pivot points.

Grease:

- The mowing unit compensation cylinder ball joint (1).

- the cutterbar connecting frame pivot pin (2).

Maintenance and storage

Mower conditioner

FC243

4. Maintenance

 Hydro-pneumatic accumulators

Hydro-pneumatic accumulators do not require any particular maintenance.

Regularly check the tightness of the accumulator fixing bolts and that no oil has leaked from hydraulic circuit (a small oil leak can change settings).

To depressurize the circuit

Place the machine in parking position.

Open valve (a).

Release pressure until the gauge needle reads 0.

Shut-off valve.

Before adjusting, maintaining or repairing the machine, turn off ignition key and wait until all moving parts have come to a complete stop.

Before any work is carried out on a hydraulic circuit with hydro-pneumatic accumulator, depressurize the circuit.

It is strictly forbidden to weld, grind or drill onto a hydro-pneumatic accumulator.

Pressurize the hydraulic circuit before activating any other hydraulic function of the machine.

Mower conditioner

FC243

Maintenance and storage

 The side gearbox drive system

Following all service operations on the drive system, check that the distance between the side gearbox drive shaft and the upper side of the cutterbar stiffener equals measure A =577 mm / 1’10’’ +/- 4 mm / 0.16’’.

 Transport stop

The transport stop (1) limits the machine's oscillation during transport.

Adjustment:

- Place the machine in transport position.

- Loosen counter nut (2).

- Bring stop (1) in contact with damper (3).

- Give transport stop (1) one or two preload turns.

- Tighten counter nut (2).

Replacement:

Replace damper (3) when worn or when it no longer has a dampening effect Part no. 56864500.

Maintenance and storage

Mower conditioner

FC243



Work/transport cylinder

Length in working position:

Following all service operations on the transport/work cylinder, proceed to following adjustment:

- Cylinder barrel (3) must be contact with frame stop (4).

- Adapt cylinder length L to obtain a play J of 2 to 4 mm (0.08’’ - 0.16’’) between bracket(1) and frame stop (2).

 Belt tension

Regularly check belt tension and in particular during the first hours of use.

- Tighten belt tensioning bolt using box spanner until the spring is completely compressed.

Never replace belts individually.When a belt is damaged, always replace the whole set.Part no. 83101687.

Slack belts slip which can reduce the crop ejection quality and cause conditioning rotor clogging.

Mower conditioner

FC243

Maintenance and storage

 Replacing the belts

With the machine in transport position.

Remove self-locking nut of pivoting guardrail using the box spanner supplied with the machine (1).

Pivot guardrail tube (2).

Remove the 3 self-locking nuts using box spanner.

Remove belt guard.

Loosen tensioning bolt (1)

Remove belt tensioning bolt from its holder.

Tip over jockey pulley (2).

Replace belts in full sets

Reinstall belt tensioning bolt and washer on its support.

Tighten belt tensioning bolt using box spanner until the spring is completely compressed.

Reinstall the belt guard.

Check that the guard is engaged inside the rigid beld guard.

Tighten the self-locking nuts using box spanner.

Pivot guardrail tube.

Tighten self-locking nut of pivoting guardrail using box spanner.

Never replace belts individually. When a belt is damaged, always replace the whole set (Part no. 83101687).

Maintenance and storage

Mower conditioner

FC243



Checking the oil levels

Cutterbar

Regularly check the cutterbar oil level:

• Place the cutterbar in horizontal position (with

regards to X and Y axis).

• Remove filler plug (1) and (2) as well as their seals.

• Through filler plugs, check that the oil level (h) is

comprised between 6 and 7 mm.

• Top up if necessary.

• Clean and reinstall filler plugs and their seals (1) and

(2). (Replace if necessary).

Before checking that the discs rotate freely by hand:

Side gearbox

- Check angle gearbox oil level:

• The "MAX" level corresponds to the mark on the

dipstick plug.

• The "MIN" level corresponds to the end of the

disptick plug.

If in doubt as to the oil quantity contained in the cutterbar, fully drain and refill cutterbar respecting recommended oil quantity and quality.

If it is found that the transmission case is very hot to touch by hand, there is no cause of alarm provided:

- Lubrication recommendations have been respected.

- Discs can be rotated freely by hand when the machine is hot.

Turn off the engine, remove ignition key and wait until all moving parts have come to a complete stop.

Mower conditioner

FC243

Maintenance and storage

 Inspection of knives and securing elements

Knives

Inspect systematically all knives before the machine is operated to:

• guarantee the cutting quality.

• guarantee safety in use.

• Prevent cutterbar damage risks.

Replace knives in the following cases:

- Damaged knives. Very rough conditions can cause knives to crack and become deformed.

- Worn knives

Knife length C must exceed 65 mm (2.6’’).

Knife width B, measured at a distance A of 10 mm (0.4’’) from the disc edge must exceed 20 mm (0.8’’).

The hole L for the securing bolt must not become oval by more than 20 mm (0.8’’) compared to its original diameter.

Always replace both knives per disc to avoid creating an out-of-balance force.

Immediately replace worn or damaged parts with genuine KUHN parts.

Maintenance and storage

Mower conditioner

FC243

Fixing elements

Check the fixing elements:

- After hitting an obstacle.

- When replacing knives.

- At the beginning of each season.

The fixing bolts should be changed in the following cases:

- When there is visible warping.

- When the locking compound is worn or inoperational.

- When the bolt head wear reaches the knife contact area.

- When diameter D of the bolt shoulder is less than 15 mm (0.6’’).

- After having been removed 5 times.

Replace nuts in the following cases:

- When the contact washer has lost its elasticity.

- When the contact washer loosens itself from the nut.

- When nut wear reaches = 5 mm (0.2’’).

- After having been removed 5 times.

Check the condition of the fixing elements regularly and also the torque of the knife-fixing bolt: 12 daN m (89 lbf ft).

Mower conditioner

FC243

Maintenance and storage

 Knife replacement

Clean the nut case.

Place a wooden wedge between two discs to stop them from rotating.

Loosen nut using box spanner supplied with the machine.

Remove bolt through opening located at the front of the disc guard.

Knives can be turned over on the same disc to use the other cutting edge or replaced. On each knife, an arrow indicates the disc's direction of rotation.

Make sure that the securing nut and bolt are in good condition and if necessary, replace them.

Torque knife locknut to 12 daN m (89 lbf ft).

Dull knives require more horse power and have a negative effect on the cut quality.

 Disc replacement

Place a wooden wegde (2) between two discs to stop them from moving.

Remove 2 bolts (1) and their spring washers using the box spanner supplied with the machine.

Remove the disc conical cover.

Remove the 2 other nipple-screws and their spring washers.

Remove the disc.

When remounting:

Position their largest diameters at right angles to each other.

Position conical centre of spring washer at the top.

Tighten screws:

- Torque to 12 daN m (89 lbf ft).

Replace knife lock-nuts and bolts when they have been removed 5 times.

Replace systematically all worn or distorted knives. Never straighten a bent knife.

Always replace both knives per disc.

Maintenance and storage

Mower conditioner

FC243

 Outer and inner cones

Check torque of attachment bolts (1) of outer and inner cone covers (2) and (3): 6 daN m (44 lbf ft).

Replace any lost or damaged cover.

(2) Part no. 56803400.

(3) Part no. 56806610.

Check if there is still a gap of 1 mm (0.04’’) between the disc lower part and the cutterbar wear plates.

If this is not the case, fit one (maximum two) spacer(s) between the disc and the mounting hub (Part no. 56807100).

Mower conditioner

FC243

Maintenance and storage

5. Storage

 At the end of each season

- Clean the machine thoroughly.

- Drain all gearboxes and cutterbar and refill with new oil (see "Lubrication" chapter).

- Touch up paint if necessary.

- Put the machine under cover in a dry place.

- Inspect and replace worn knives and bolts (See section: Inspection of knives and securing elements).

- Inspect and replace worn or damaged fingers on the conditioning rotor.

- Slacken V-belts and check their condition.

- Depressurize all hydraulic functions.

 At the start of each season

- Pressurize the hydraulic circuit.

- Check the condition of the friction slip clutch (see "Secondary pto shaft" chapter).

- Inspect and replace worn knives and bolts (See chapter: Inspection of knives and securing elements).

- Check that all nuts and bolts are sufficiently tightened.

- Read through the operator's manual again.

- Retension V-belts.

- Check belt guard condition and if it is firmly secured in place.

- Make sure that all protection devices are in place and good condition.

Trouble shooting guide

Mower conditioner

FC243

$TROUBLE SHOOTING GUIDE

 Problem  Cause  Remedy

Uneven stubble.

Dull or broken knives. Replace knives.

Knives not installed correctly.

Make sure the arrow on the knife upper face is pointing in the disc's direction of rotation.

Too low PTO speed (rotational frequency).

Increase speed to 540 min

-1

Soil build up in front of the cutterbar.

Too much cutterbar down pressure.

Increase accumulator pressure.

Very wet working conditions.

Increase accumulator pressure.

Bad ground contour adaptation.

Incorrect main frame setting.

Adjust main frame height with regards to the ground.

Excessive ground speed. Reduce ground speed.

Insufficient ground pressure. Reduce accumulator pressure.

Insufficient cutterbar ground clearance in "headland turn" position.

Incorrect tractor lift linkage setting.

See machine attachment.

Too long levelling rod adjustment.

Shorten levelling rods.

Excessive mowingconditioning unit lateral oscillation in transport position.

Incorrect transport stop adjustment.

Readjust transport stop.

Obstruction of conditioning rotor.

Insufficient rotor speed (rotational frequency).

Check that the rotor drive belts are correctly tensioned.

Too low PTO speed (rotational frequency).

Increase speed to 540 min

-1

Swath shields too closed. Open swath shields.

Badly shaped windrows.

Too low PTO speed (rotational frequency).

Increase speed to 540 min

-1

Incorrectly adjusted swath shields.

Adjust both swath shields.

Mower conditioner

FC243

Limited warranty

$LIMITED WARRANTY

Limited warranty

Mower conditioner

FC243

KUHN FC243 Operator's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual