OPERATOR'S MANUAL
KN055EGB F
Mower conditioner
FC303YGC
KN055EGB F
- English - 11-2009
Mower conditioner
FC303YGC
$Dear Owner
In buying a Kuhn machine you have chosen wisely. Into it have gone years of thought, research and
improvement. 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
through 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 th is 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 ar e 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 FC303YGC 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.
Dear Owner
1
Mower conditioner
FC303YGC
$Contents
Dear Owner.....................................................................................................................1
Contents .........................................................................................................................2
Identification of the machine.........................................................................................4
Front view..........................................................................................................................................4
Rear view.. ....................................... ... ... .... ... ....................................... ... ... ... ... ..................................4
Model identification plate ................................................................................................................5
Optional equipment..........................................................................................................................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................................................................................................20
Description and glossary...............................................................................................................20
Technical specifications......... .... ... ... ... .... ... ... .......................................... ... ... .... ... ... ... .... ... ............23
Sound levels ......... ... ... .... ... ... ... .... ...................................................................................................23
Putting into service......................................................................................................24
Description of control elements....................................................................................................24
Coupling and uncoupling..............................................................................................................24
Instructions for transport............................................................................................34
2
Putting the machine into transport position................................................................................34
Conformity with the road regulations...........................................................................................36
Contents
Mower conditioner
FC303YGC
Instructions for work...................................................................................................37
Putting the machine into work position.......... ... ..........................................................................37
Adjustments in working position..................................................................................................39
Machine use....................................................................................................................................52
Optional equipment.....................................................................................................53
1 3/8" - 6 spline pto shaft Length 873 mm (2’10’’).................................... ... ... .... ... ... ... ... .............53
1 3/8" - 21 spline pto shaft Length 873 mm (2’10’’).....................................................................53
32 mm / 38 mm - 8 spline pto shaft Length 873 mm (2’10’’).......................................................53
1 3/8" - 6 spline pto shaft Length 1135 mm (3’9’’).......................................................................54
1 3/8" - 21 spline pto shaft Length 1135 mm (3’9’’).....................................................................54
Maintenance and storage............................................................................................ 55
Frequency chart .............................................................................................................................55
Lubrication............................................................................................ ..........................................56
Maintenance....................................................................................................................................63
Storage............................................................................................................................................70
Trouble shooting guide............................................................................................... 71
Limited warranty..........................................................................................................72
Contents
3
1. Front view
Mower conditioner
FC303YGC
$Identification of the machine
2. Rear view
4
Identification of the machine
3. 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.
Mower conditioner
FC303YGC
Type: FC303YGC
Serial no.:
4. Optional equipment
Tick box corresponding to the equipment fitted on your
machine:
Part no. 4800601: 1 3/8" - 6 spline pto shaft. Length 873 mm (2’10’’).
Part no. 4800606: 1 3/8" - 21 spline pto shaft. Length 873 mm (2’10’’).
Part no. 4800611: 32 mm / 38 mm - 8 spline pto shaft. Length 873 mm (2’10’’).
Part no. 4800616: 1 3/8" - 6 spline pto shaft. Length 1135 mm (3’9’’).
Part no. 4800617: 1 3/8" - 21 spline pto shaft. Length 1135 mm (3’9’’).
Identification of the machine
5
$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.
Mower conditioner
FC303YGC
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.
6
Safety
Mower conditioner
FC303YGC
2. Safety instructions
Introduction
The machine must only be operated, maintained and repaired by competent persons who are familiar with
machines' specifications and operation and aware of safety regulations fo r 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 le gislation concerning accident prevention, wo rk 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 a nd acce sso ries, as r ecom mended
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 accident re sulting from machine modifications carried out
by the operator himself or by a third party without previous written agreement from the manufacturer.
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 traine d
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
and apply park brake.
Safety
7
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 defenders,
etc.).
Ensure that all operating controls (ropes, cables, rods,
etc) are placed so as they cannot be operated
unintentionally and cause damage or injury.
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.
Mower conditioner
FC303YGC
Precautions when driving
Tractor handling, stability, performance and braking
efficiency are all affected by weight distribution, trailed or
mounted implements, additional ballast and driving
conditions. It is therefore of great importance that the
operator exercises caution in every given situation.
Groundspeed must be adapted to ground conditions as
well as to roads and paths. Always avoid abrupt change s
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.
8
Safety
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 transportation of oversize
equipment.
Gross weight and weight per axle
Check that the tractor's authorized gross weigh t as well
as its lift capacity and maximum weight per axle are not
exceeded.
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.
Mower conditioner
FC303YGC
Transport position
Before transporting the machine on public roads, place
the machine into its transport position, according to the
instructions in this manual.
Lights and indicators
Before transporting the machine on public road s, 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.
Always obey current regulations for driving
on roads.
Maximum speed
Always keep to the legal speed limit for driving a tractormachine assembly on public roads.
Safety
9
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 three point linkage.
Do not stand between the tractor and the machine
without ensuring that the parking brake is applied.
Hydraulic circuit
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Caution! The hydraulic circuit is under high 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 incorrect connections, mark hydraulic
couplers and corresponding hoses with colors.
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, only use hoses with
the specification recommended by the manufacturer of
the machine.
To locate a leak, use appropr iate 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 to the ground, depressurize the hydraulics, turn
off the engine, remove ignition key and wait until all
moving parts have come to a complete stop.
10
Safety
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 se cured with
the safety chains provided.
Any worn or damaged guards 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 ma nual
provided with the PTO shaft.
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FC303YGC
Safety
11
Precautions during manoeuvres
When moving the machine from the transport positio n 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
manufacturers' recommendations on 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).
Mower conditioner
FC303YGC
Safety decals
Safety warning decals are placed in pictorial form on
various parts of the machine. They are ther e to warn you
of potential dangers and to tell you how to avoid
accidents.
Always keep the safety decals clea n 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, never pour them
down the drain and never discard them in any other
place where they could pollute the environment. Never
throw away or burn a tyre. Always take waste to
specialized recycling or waste disposal centers.
Precautions for maintenance and repair
work
12
Safety
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
and apply park brake.
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 defenders,
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.
Mower conditioner
FC303YGC
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 movin g parts can tr avel
a considerable distance. Keep all persons and animals
away from the danger zone.
The protection covers help reducing risks of projections.
Therefore, make sure t hat all mower protection devices
are in place and good condition prior to using the
Safety
13
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 hardwa re 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.
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14
Safety
3. Location and description of safety decals on the machine
Location of safety decals
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Safety
15
Description of safety decals
Operating instructions (1)
The operators' 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)
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
and apply park brake.
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FC303YGC
Projections (3)
Stones and other debris pro jected by the moving parts
can travel a long distance. The protection covers must
always be in position and in good condition. Always sta y
at a safe distance from the machine.
Manoeuvring area (4)
Stay a safe distance from the machine. Crushing hazard.
16
Safety
Rotating cutting tools (5)
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 (6)
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.
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Safety
17
4. Road safety equipment and recommendations
The road safety equipment is mounted in the factory or
by your authorized Kuhn dealer according to current
safety regulations. Always keep to the legal speed limit
for driving a tractor-machine assembly on public roads.
Whatever the speed, we recommend, for everyones'
safety, not to exceed a maximum speed of 25 km/h
(15 mph).
The rear safety device comprises:
2 signalling panels (1).
2 signalling lights (2) (red light / stop light / turn signal
light).
2 red reflectors (3).
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The side device comprises:
3 amber reflectors (1) on each machine side.
The front safety device comprises:
2 signalling panels (1).
2 white lights (2).
2 white reflectors (3).
18
Safety
Tyre pressure
Tyre pressure: 2 bar (30 psi).
Instructions specific to France
Speed (1)
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Always keep to the legal speed limit of 25 km/h (15 mph)
for driving a tractor-machine assembly on public roads.
Instructions specific to Italy
The machine must be fitted with specific signalling
panels to comply with the road regulations.
Signalling kit Italy: Part no. 1096080.
Safety
19
$Machine specifications
1. Description and glossary
0
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0
1 : Check chain 2 : Toolbox
3 : Drawbar 4 : Parking stand
5 : Side guard 6 : Wheel
7 : Wheel chocks 8 : Swath shields
9 : Wide spreading shield 10 : Secondary PTO shaft
20
Machine specifications
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0
0
1 : Gyrodine hitch tube 2 : Gyrodine gearbox
3 : PTO shaft support 4 : Drawbar shift cylinder
5 : Drawbar shift cylinder lock valve 6 : Tertiary PTO shaft
7 : Gear shift lever 8 : Pitch angle adjustment rod
9 : Suspension adjustment crank
Machine specifications
21
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0
0
1 : Side gearbox 2 : Cutterbar
3 : Adjustment lever 4 : Deflector lever
5 : Conditioning rotor
22
Machine specifications
Mower conditioner
2. Technical specifications
Attachment type 2 point linkage category 2 and 3
Number of discs 6
Working width 3.00 m (9’10’’)
Width in working position 5.00 m (16’5’’)
Height in working position 1.67 m (5’6’’)
Length in working position 5.85 m (19’2’’)
Width in transport position 3.00 m (9’10’’)
FC303YGC
Height in transport position 1.80 m (5’11’’)
Length in transport position 7.02 m (23’)
Disc rotational speed 2610 min
Rotor speed 600/1000 min
Rotor width 2.20 m (7’3’’)
PTO speed 1000 min
Weight 2600 kg (5732 lb) ( ap pr o xim at ely)
Minimum PTO power requirement 59 kW (80 hp)
Swath width from 1.00 to 2.30 m (3’3’’ - 7’7’’) (approximately)
Tyres 11.5/80-15.3
-1
-1
-1
3. Sound levels
Sound levels have been measured in accordance with th e me as ur ing meth od s as de fin ed in:
NF EN ISO 4254-1
«Agricultural machinery - Safety - Part 1: General requirements»
Weighted equivalent continuous acoustic pressure level at the driver's seat (closed cabin) L (A) eq:
Tractor only: 72.5 dB(A)
Tractor + machine: 76.4 dB(A)
Machine specifications
23
$Putting into service
1. Description of control elements
The machine is supplied with an 18 mm box wrench (1)
to carry out certain adjustment and maintenance tasks.
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2. Coupling and uncoupling
Description of coupling elements
- A PTO shaft 1 3/8’’ - 6 splines.
- 2 check chains.
- A hydraulic hose controlling the mowing unit lift
linkage.
- Two hydraulic hoses controlling the drawbar shift
cylinder.
- A 7-pin electric plug for the electrical signalling
equipment.
24
Putting into service
Preparing the tractor
The machine adapts to tractors fitted with a 3-point hitch
coupler category 2 or 3.
The tractor must be fitted with lower link
stabilizers.
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The tractor PTO stub must rotate at a speed of 1000 min
The tractor must be equipped with:
- 1 double acting hydraulic outlet.
- 1 single acting hydraulic outlet.
Hitch pin parallelism
Adjust tractor lift rods so that hitch pins are parallel to th e
ground.
-1
.
Putting into service
25
Coupling the machine
The machine adapts to tractors fitted with a 3-point hitch
coupler category 2 (a) or 3 (b).
- Lower the tractor three-point linkage.
- Place the lower links as close as possible under the
hitch pins.
- Attach lower links to the hitch pins on the inside of the
yokes.
- Secure with lynch pins.
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26
Putting into service
- Lift the machine with the tractor's three point linkage.
- Fold parking stand and lock it in place (a).
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Putting into service
27
Hydraulic connections
Connect the 2 hydraulic hoses of the drawbar shift
cylinder to a double acting valve (1).
Connect the mowing unit lift cylinder to a single acting
valve (2).
Electrical connections
- Connect 7-pin plug to the tractor.
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Fit check chain
See section "Frame height and check chains".
28
Putting into service
Primary PTO shaft
Make sure that the PTO shaft is correctly
adjusted, to avoid premature wear and tear.
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’’).
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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 tub es
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°.
To avoid serious accidents, the PTO drive
shaft guards must be properly in place and
fixed with the chains provided.
Putting into service
29
-
On machine side, hook drive guard chain to ring (1).
Immediately replace any worn or damaged
guard.
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30
Putting into service
Adjusting the machine
Lateral adjustment of the lower links.
Balance the play on either sides of the lift linkage and
lock lower link stabilizers.
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Frame height and check chains
- Lower tractor lift linkage until hitch pins are at a
distance (H) slightly over 450 mm (1’6’’) from the
ground.
- Attach check chains supplied with t he mac hine t o the
upper free hole of the tractor's top link attachment
clevis.
- Lower machine until safety chains are taut.
Putting into service
31
Uncoupling the machine
Park the machine on an even fairly level
ground.
Preferably park the machine in transport
position, with the mowing unit resting on the
ground.
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- Lower the mowing unit on the ground using mowing
unit lift cylinders.
- Lower and lock parking stand (a).
- Remove and store check chains.
- Lower the tractor three-point linkage to rest the
machine on the ground.
- Block machine with wheel chocks (1).
32
Putting into service
- 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).
- Release the lower links.
- Lower the tractor three-point linkage.
The machine is uncoupled.
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Putting into service
33
$Instructions for transport
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.
1. Putting the machine into transport position
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From the working position:
- Activate mowing unit lift cylinders to fully raise the
machine.
- Operate drawbar shift cylinder to put the drawbar in
transport position.
- Shut-off drawbar shift cylinder lock valve (1).
34
Instructions for transport
- Shut-off mowing unit lift cylinder lock valves (1).
Opened position (1).
Closed position (2).
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- Release and lift side guard using 18mm box spanner
supplied with the machine.
- The side guard automatically locks in raised position.
- Proceed the same way on the other side.
The machine is in transport position.
Never engage the tractor PTO drive when t he
machine is in transport position.
Instructions for transport
35
2. Conformity with the road regulations
Before driving the machine on public roads,
ensure that the machine complies with
current highway code regulations.
Check that the light boards are clean and that the lighting
equipment functions before transporting the machine on
public roads.
Check that the drawbar shift cylinder and
mowing unit lift cylinder lock valves are shutoff.
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Check that side guards are folded.
Immediately replace any worn or damaged
signalling panels or lights.
Regularly check the tyre pressure.
36
Instructions for transport
$Instructions for work
Before placing the machine in working
position:
- Check that nobody is within the machine
pivoting area.
- If there is someone, make sure the
person moves away.
1. Putting the machine into work position
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FC303YGC
From the transport position:
- Open drawbar shift cylinder lock valve (1).
- Open the mowing unit lift cylinder lock valves (1).
Opened position (1).
Closed position (2).
Instructions for work
37
- Pull on handle (1) to release and lower the side guard.
- Proceed the same way on the other side.
- Operate drawbar shift cylinder to put drawbar in
working position.
- Lower the mowing unit using the machine lift
cylinders.
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The machine is in working position.
38
Instructions for work
2. Adjustments in working position
Cutting height
Place the machine on flat ground.
The cutting height is adjusted with the
machine attached, hitch pins at
500 mm (1’8’’) from the ground.
The height can be adjusted from 26 to 100 mm (1’ 4’’). Centralized adjustment by means of a pitch angle
adjustment rod fitted with a graduated scale (1).
To adjust the cutting height:
- Lift lock (2).
- Turn clockwise to reduce cutting height (a).
- Turn counter-clockwise to increase the cutting
height (b).
- Lower lock (2).
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The maximum cutting height (L1 =
100 mm (3.9’’)) is obtained when the discs are
parallel to the ground.
The minimum cutting height must not be below
(L2 = 26 mm (1’’)).
Too low a cutting height can lead to:
Excessive disc and knife wear.
Crop being contaminated by soil.
Delay in regrowth.
Instructions for work
39
Balancing the suspension system
The suspension system is factory set so that the
two outer skids rest on the ground with the same
ground pressure.
Checking the balance
Pull crank (1) out of its holder.
Turn clockwise to reduce the ground pressure until the
mowing unit comes off the ground (a).
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If the mowing unit lifts horizontally:
The balancing is correct.
Adjust the mowing unit ground pressure.
See chapter: Reduced or increased ground pressure.
If the mowing unit does not lift horizontally:
Readjust balancing.
- Remove hood (1) using 18 box spanner su pplie d with
the machine.
- Pull crank (2) out of its holder.
40
Instructions for work
Remove pin (1).
If measure (A) exceeds (B):
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Pull out crank to disengage suspension system
gearwheels (a).
Turn clockwise to reduce ground pressure until balance
is obtained (b).
Reinstall crank to engage suspension system
gearwheels.
Place pin back in hole (1).
Reinstall hood.
Tighten screws:
- Torque: 12.5 daN m (92 lbf ft).
Instructions for work
41
If measure (B) exceeds (A):
Pull out crank to disengage suspension system
gearwheels (a).
Turn counter-clockwise to increase the ground pressure
until balance is obtained (b).
Reinstall crank to engage suspension system
gearwheels.
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Place pin back in hole (1).
Reinstall hood.
Tighten screws:
- Torque: 12.5 daN m (92 lbf ft).
42
Instructions for work
Reduced or increased ground pressure
Place the machine on flat ground.
The cutting height is adjusted with the
machine attached, hitch pins at
500 mm (1’8’’) from the ground.
To adjust the suspension
From the working position:
- Pull crank (1) out of its holder.
• Turn clockwise to reduce the ground pressure until
the mowing unit comes off the ground (a).
• Turn counter-clockwise to increase the ground
pressure (b).
- Place crank in its holder.
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To check the ground pressure:
From the working position:
- Check that the chassis height is correct
(H = 500 mm (1’8’’).
- Raise the mowing unit.
- The force (F) must be of approximately
60 daN (135 lbf) on each side.
- Readjust if necessary.
The force (F) must exceed 50 daN (112 lbf) on
each side.
In case an obstacle has been struck, check
that the mowing unit has not been damaged.
Instructions for work
43
Finger conditioning rotor speed
Always place the machine in working
position before making rotor speed
(rotational frequency) adjustments.
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The machine is equipped with a finger conditioning rotor.
The rotor speed can be set at 1000 min
The machine is factory set at a rotor speed of 1000 min
-1
or 600 min-1.
-1
Rotor speed adjustment
Turn off the engine, remove ignition key and
wait until all moving parts have come to a
complete stop.
To change the speed, use lever (1).
Refer to the decal fitted on the machines.
.
44
Instructions for work
Conditioning intensity
Before adjusting, maintaining or repairing
the machine, turn off ignition key and wait
until all moving parts have come to a
complete stop.
Several factors govern the conditioning intensity
adjustment:
Conditioning rotor speed
See section "Finger conditioning rotor speed".
Adjustment lever (1)
The lever sets the conditioning hood in relation to the
rotor in 6 positions.
Unscrew lock (1)
To increase the conditioning intensity, reduce the
distance between the conditioning hood and the
conditioning rotor (a).
To reduce the conditioning intensity (for mowing
leguminous for example), increase the dista nce between
the conditioning hood and the conditioning rotor (b).
Tighten lock (1) after adjustment.
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Refer to the pictorial applied on the machine to
check the lever direction of operation with
regards to the required conditioning intensity.
If the leaves are damaged and the stalks are
crushed, reduce the conditioning intensity.
Instructions for work
45
Conditioning comb
Lower the mowing unit on the ground using
mowing unit lift cylinders.
Unlock and lift front guard using 18 (1) box spanner
supplied with the machine.
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FC303YGC
The angular position of the comb in relation to the
conditioning hood also enable s alte ri ng t he co nd itio nin g
intensity:
Measure (L) directly affects the conditioning intensity.
- Comb in action (a).
- Comb not in action (b).
- Remove R-clip (1).
Pull lever (2) using 18mm box wrench supplied with the machine and place it in the required position.
During the season, check that the
conditioning comb is not blocked up by
foreign material.
clean conditioning comb and the top side of
the conditioning hood to maintain their
efficiency and allow easier adjustment.
46
Instructions for work
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’’.
If conditioning is too intensive, the crop's
nutritional value and yield may decrease.
Adjustment
- Loosen screw (1) on each side of the mowing unit.
- Loosen the 2 screws (2) on each side of the mowing
unit.
- Pivot and position conditioning hood.
- Tighten screw (1) on each side of the machine:
• Torque: 8.5 daN m ( 63 lbf ft).
- Position fins (3) in high position on each side of the
mowing unit.
- Tighten the 2 screws (2) on each side of the mowing
unit:
• Torque: 8.5 daN m ( 63 lbf ft).
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Instructions for work
47
Side deflectors
Fit side deflectors supplied with the machine when crop
is ejected sideways in difficult working conditions:
- Left side deflector (a): Part no. K5609840.
- Right side deflector (b): Part no. K5609850.
Fitting the side deflectors
Right side deflector:
- Fit deflector (1) using the 3 bolts, nuts and
washers (2).
- Torque bolts to (2).
• Torque: 4.9 daN m (37 lbf ft).
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Left side deflector:
- Mount side deflector (1) using (2) bolts, nuts and
washers (3).
- Torque bolts to (3).
• Torque: 4.9 daN m (37 lbf ft).
48
Instructions for work
Swathing system for large swaths and wide spreading
The swathing system comprises:
- 2 swath shields.
- 6 spreading fins.
There are three swathing system positions
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Swathing position
- Adjustment of the spreading fins:
• Remove 6 bolts (1).
• Pivot spreading fins inwards opposite additional
holes.
• Reinstall bolts (1).
- Adjusting the swath shields:
• Loosen 2 handles (1).
• Pivot swath shields inwards to reduce the swath
width.
• Tighten 2 handles (1).
Instructions for work
49
"Wide swaths" configuration
- Lower lever (1) to place deflector in vertical position.
- The swath width is 1.80 m (5’10’’) approximately.
Wide spreading position
- Adjustment of the spreading fins:
• Remove 6 bolts (1).
• Pivot spreading fins outwards opposite additional
holes.
• Reinstall bolts (1).
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- Adjusting the swath shields:
• Loosen 2 handles (1).
• Pivot swath shields outwards.
• Tighten 2 handles (1).
50
Instructions for work
Wide spreading kit operating angle
According to the crop density, adjust the wide spreading
kit angle using lever (1):
- Pivot lever upwards (a) to raise the wide spreading
system.
- Pivot lever downwards (b) to lower the wide spreading
system.
- The swath width is 2.30 m (7’6’’) approximately.
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Instructions for work
51
3. Machine use
Before mowing and to reduce risks of
projections, lower side guards and front
guard.
Check that nobody is within the machine
pivoting area.
Keep all persons and animals away from the
machine danger zone.
Never lean or step on the guards.
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FC303YGC
In case an obstacle has been struck, check
that the mowing unit has not been damaged.
Before the machine engages the crop:
- Engage the tractor PTO and slowly increase the
speed up to 1000 min
Use hand throttle to prevent the conditioner from
getting jammed due to a drop in rotational speed.
The machine is lifted from working position into
headland turn position by means of the mowing
unit lift cylinders.
Groundspeed
Adapt the forward speed to the working
conditions.
-1
.
52
Instructions for work
$Optional equipment
1. 1 3/8" - 6 spline pto shaft Length 873 mm (2’10’’)
Part no. 4800601
A specific pto shaft is available as option for tractors
equipped with a 1 3/8" - 6 spline pto stub.
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FC303YGC
2. 1 3/8" - 21 spline pto shaft Length 873 mm (2’10’’)
Part no. 4800606
A specific pto shaft is available as option for tractors
equipped with a 1 3/8" - 21 spline pto stub.
3. 32 mm / 38 mm - 8 spline pto shaft Length 873 mm (2’10’’)
Part no. 4800611
A specific pto shaft is available as option for tractors
equipped with a 32 mm / 38 mm - 8 spline pto stub.
Optional equipment
53
4. 1 3/8" - 6 spline pto shaft Length 1135 mm (3’9’’)
Part no. 4800616
A specific pto shaft is available as option for tractors
equipped with a 1 3/8" - 6 spline pto stub.
5. 1 3/8" - 21 spline pto shaft Length 1135 mm (3’9’’)
Part no. 4800617
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A specific pto shaft is available as option for tractors
equipped with a 1 3/8" - 21 spline pto stub.
54
Optional equipment
Before adjusting, maintaining or repairing
the machine, turn off ignition key and wait
until all moving parts have come to a
complete stop.
1. Frequency chart
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FC303YGC
$Maintenance and storage
Lubrication
Oil change:
- Cutterbar
- Side gearbox
- Gyrodine gearbox
Grease:
- Drawbar pivot point
- Intermediate shaft U-joint
After the first
10 hours of
use
Every 20 hours
Every 200
hours or at the
end of the
season
33
33
33
3
3
- Gyrodine hitch tube pivot points
3
Maintenance and storage
55
2. Lubrication
Except for the secondary PTO shaft lubrication, the
machine must be placed in transport position for all
maintenance operations (knife rep lacemen t, lubricatio n,
etc).
Clean grease nipples before greasing.
Lubricate with SHELL multi-purpose grease
grade NLGI 2.
PTO shaft
Primary PTO shaft
- Every 20 hours:
• universal joints (1).
• transmission tube (2).
- Every 100 hours:
• guide rings (3).
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56
Maintenance and storage
Intermediate and secondary PTO shafts
- Every 20 hours:
• universal joints (1).
• transmission tube (2).
- Every 100 hours:
• guide rings (3).
The pictorials show the points to be greased (1):
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Maintenance and storage
57
Tertiary PTO shaft
- Every 20 hours:
• universal joints (1).
• transmission tube (2).
- Every 100 hours:
• guide rings (3).
The pictorials show the points to be greased (1):
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58
Maintenance and storage
Cutterbar draining and refilling
Before draining oil, operate the machine for a
few minutes so that the oil warms up.
The cutterbar is lubricated with 2 L (0.53 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.
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From the transport position:
- Using two wedges of different height, rest the
cutterbar higher on opposite side of drain plug
- Place a container of sufficient capacity under drain
plug.
- Remove filler plug (1) and its washer.
- Remove drain plug (2) and its washer.
- Allow oil to drain completely.
- Wait for dripping to stop.
- Clean and reinstall drain plug (2) 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 (1) and its washer.
Replace if necessary.
Maintenance and storage
59
Lateral gearbox draining
Before draining oil, operate the machine for a
few minutes so that the oil warms up.
The angle gearbox is lubricated with 1.75 L (0.46 US gal) of SHELL SPIRAX A extreme-pressure oil for
mechanical transmissions 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.
- Remove filler plug (1) and its washer.
- Place a container of sufficient capacity under drain
plug.
- Remove drain plug (2) and its washer.
- Allow oil to drain completely.
- Wait for dripping to stop.
- Clean and reinstall drain plug (2) and its
washer. Replace 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
dipstick plug.
- Clean and reinstall filler plug (1) and its washer.
Replace if necessary.
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60
Maintenance and storage
Draining the Gyrodine gearbox
Before draining oil, operate the machine for a
few minutes so that the oil warms up.
The Gyrodine gearbox is lubricated with 5.5 L (1.45 US gal) of SHELL SPIRAX A extreme-pressure
gear oil with SAE 80W90 viscosity grade API and 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.
- Remove dipstick plug (1).
- Place a container of sufficient capacity under drain
plug.
- Remove drain plug (2) and its washer.
- Allow oil to drain completely.
- Wait for dripping to stop.
- Clean and reinstall drain plug (2) and its
washer. Replace if necessary.
- Pour the correct oil quantity and quality through the
opening of the filler plug (1).
- Check Gyrodine gearbox level:
• The "MAX" level corresponds to the mark on the
dipstick plug.
• The "MIN" level corresponds to the end of the
dipstick plug.
- Clean and reinstall filler plug (1) and its
washer. Replace if necessary.
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Maintenance and storage
61
Grease
- The drawbar pivot pin (1).
- The Gyrodine hitch tube pivot pins (1) and (2).
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62
Maintenance and storage
3. Maintenance
Before carrying out any maintenance or
repairs on the machine, switch off the tractor
engine, remove ignition key, wait until all
moving parts have come to a standstill and
apply park brake.
The conditioner belts
Never replace belts individually. When a belt is
damaged, always replace the whole set (Part
no. 83101798).
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FC303YGC
The automatic tensioning device ensures correct tension
throughout the belt's service life.
Should the belts no longer drive, they have
reached their useful service life.
Replace belts in full sets.
Belt set replacement
Remove 5 bolts (1).
Remove belt guard.
Loosen screw (1) to slacken belts (2).
Remove the 2 V-belts.
Install new belt set.
Tighten screw (1) until it buts against rod (3).
Reinstall belt guard.
Tightening torque: 4.9 daN m (36 lbf ft).
Maintenance and storage
63
Main drive belt
The automatic tensioning device ensures correct tension
throughout the belt's service life.
If the belt slips and no longer provides correct
drive, its service life is at its end.
Belt replacement
Remove 2 bolts (1).
Remove hood (2) (a).
Proceed the same way on the other side.
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Tighten screw (1) to loosen belt tension.
Replace belt:
- Main drive belt (2) (Part no. 83111682).
Fully loosen screw until it bottoms out.
Reinstall hoods.
64
Maintenance and storage
Checking cutterbar oil level
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 2 and 3 mm (0.08’’ - 0.12’’).
- Top up if necessary.
- Clean and reinstall filler plugs and their seals (1) and
(2). Replace if necessary.
If in doubt as to the oil quantity contained in
the cutterbar, fully drain and refill cutterbar
respecting recommended oil quantity and
quality.
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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.
Before checking that the discs rotate freely by hand:
Turn off the engine, remove ignition key and
wait until all moving parts have come to a
complete stop.
Maintenance and storage
65
Checking the oil levels
Gyrodine gearbox
- Check oil level in lower gearbox:
• The "MAX" level corresponds to the mark on the
dipstick plug.
• The "MIN" level corresponds to the end of the
dipstick plug.
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
dipstick plug.
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66
Maintenance and storage
Inspection of knives and securing elements
Immediately replace worn or damaged parts with
genuine KUHN parts.
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’’).
Always replace both knives per disc to avoid creating an
out-of-balance force.
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Maintenance and storage
67
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 distortion.
- When the locking compound is worn or inoperational.
- When the bolt head wear reaches the center line of
the bolt.
- When diameter D of the bolt shoulder is less than
15 mm (0.6’’).
- After having been removed 5 times.
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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 a = 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-fix ing
bolt: 12 daN m (89 lbf ft).
68
Maintenance and storage
Knife replacement
Replace knife lock-nuts and bolts when they
have been removed 5 times.
Replace immediately all worn or distorted
knives. Never straighten a bent knife.
Always replace both knives per disc.
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.
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Disc replacement
Place a wooden wedge (2) between tw o discs to stop
them from moving.
Remove 4 bolts (1) and their spring washers using the
box spanner supplied with the machine.
Remove the disc.
When remounting:
Position their largest diameters at right angles to each
other.
Position conical centre of spring washer at the top.
Torque bolts to (1):
- Torque: 12 daN m (89 lbf ft)
Maintenance and storage
69
4. 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 any areas of damaged paintwork.
- 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.
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FC303YGC
At the start of each season
- Re-read the operators' manual.
- Pressurize the hydraulic circuit.
- Inspect and replace worn knives and bolts (See
chapter: Inspection of knives and securing elements).
- Check that all nuts and bolts are sufficiently tightened.
- Retension V-belts.
- Check belt guard condition and if it is firmly secured in
place.
- Inspect and replace worn or damaged fingers on the
conditioning rotor.
- Make sure that all protection devices are in place and
in good condition.
- Check tyre pressure.
70
Maintenance and storage
Mower conditioner
$Trouble shooting guide
-
Problem Cause Remedy
Dull or broken knives. Replace knives.
Make sure the arrow on the knife
Knives not installed correctly.
Excessive ground speed. Reduce ground speed.
upper face is pointing in the disc's
direction of rotation.
FC303YGC
Uneven stubble.
Soil build up in front of the
cutterbar.
Obstruction of conditioning rotor.
Incorrect cutting height. Adjust the cutting height.
Incorrect mowing unit floatation.
Tangled and down crops.
Too much cutterbar down
pressure.
Very wet working conditions.
Insufficient rotor speed (rotational
frequency).
Too much cutterbar down
pressure.
Swath shields too closed. Open swath shields.
Belts slip.
Adjust the mowing unit ground
pressure.
Reduce cutting height.
Adjust the mowing unit ground
pressure.
Adjust the mowing unit ground
pressure.
Adjust the mowing unit ground
pressure.
Adjust the cutting height.
Check the rotor drive belts,
replace if necessary.
Adjust the mowing unit ground
pressure.
Check the rotor drive belts,
replace if necessary.
Badly shaped windrows.
Machine requires too much pull
power.
Too low PTO speed (rotational
frequency).
Incorrectly adjusted swath
shields.
Too much cutterbar down
pressure.
Increase speed to 1000 min
Adjust both swath shields.
Adjust the mowing unit ground
pressure.
Trouble shooting guide
-1
.
71
$Limited warranty
Mower conditioner
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72
Limited warranty
Mower conditioner
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Limited warranty
73
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