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OPERATOR'S MANUAL
KN243AGB B
Gyrotedder
GF422
KN243AGB B
- English - 10-2009
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Gyrotedder
GF422
$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 GF422 gyrotedder must only be used for the purpose for which it wa s manufactured: spreading and ted ding
previously cut forage or straw. It can also be used to form small windrows in order to limit the exposure of crop
to dew at night.
Dear Owner
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Gyrotedder
GF422
$Contents
Dear Owner.....................................................................................................................1
Contents .........................................................................................................................2
Identification of the machine.........................................................................................4
Rear view.. .......................................... ... .... ... ... .......................................... ... ... .... ... ... ........................4
Vue avant (position de travail) ...... ... ... .... ... ... ... ... .... ... ... ... .... ... ... ... .... ..............................................4
Model identification plate ................................................................................................................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............. ... ... ... .... ... ... ... ... .... ............................................. ... ... .... ... ............21
Sound levels ......... ... ... .... ... ... ... .... ............................................. ......................................................21
Putting into service......................................................................................................22
Description of control elements....................................................................................................22
Coupling and uncoupling..............................................................................................................23
Instructions for transport............................................................................................30
2
Putting the machine into transport position................................................................................30
Conformity with the road regulations...........................................................................................32
Contents
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Gyrotedder
Instructions for work...................................................................................................33
Putting the machine into work position............. ..........................................................................33
Adjustments in working position..................................................................................................35
Machine use....................................................................................................................................36
Maintenance and storage............................................................................................ 41
Frequency chart .............................................................................................................................41
Lubrication............................................................................................ ..........................................42
Maintenance....................................................................................................................................45
Storage............................................................................................................................................48
Limited warranty..........................................................................................................49
GF422
Contents
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1. Rear view
Gyrotedder
GF422
$Identification of the machine
2. Front view
4
Identification of the machine
Page 7
3. Model identification plate
Please write below the type and serial number of the
machine. This information is to be indicated to the dealer
for all spare parts orders.
Type: GF422
Serial no.:
Gyrotedder
GF422
4. Optional equipment
Kit no. A4074000: Female coupler (Equipment delivered depending on country).
Kit no. 1116300: Tine arm deflectors.
Kit no. 1116440: DUPLEX gearbox.
Kit no. 1126270: Three point frame damper.
Kit no. 1126530: Wheel deflectors.
Kit no. 1146230: Lower hitch pins.
Part no. 58599920: Safety strap.
Identification of the machine
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$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.
Gyrotedder
GF422
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.
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Safety
Page 9
Gyrotedder
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.
GF422
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
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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.
Gyrotedder
GF422
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.
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Safety
Page 11
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.
Gyrotedder
GF422
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
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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
Caution! The hydraulic circuit is under high pressure.
Maximum pressure at work: 200 bar (2 90 0 p si).
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.
Gyrotedder
GF422
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Safety
Page 13
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 u nprotected 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.
Gyrotedder
GF422
Safety
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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).
Gyrotedder
GF422
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.
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Safety
Page 15
Precautions for maintenance and repair
work
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 (nuts,
bolts, etc.).
Gyrotedder
GF422
Projection of stones and foreign objects
For driver safety, always use a tractor equipped with a
cab. Never start the machine when there are people
nearby.
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.
Safety
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Precautions for machine use
Before using the machine, check tools ( tines) and their
attachment hardware in accordance with the instructions
of the present manual.
Check the guards regularly. Immediately replace any
damaged or missing elements.
Before engaging the pto drive, lower the rotors onto the
ground. Make sure all the guards are in place. Keep all
persons and animals away from the danger zone.
Keep a safe distance from the Gyrotedder when the
rotors are in movement.
Never work in reverse.
After the power source has stopped, the rotors can
continue turning for a time. Stay away from the machine
until all moving parts have come to a complete standstill.
If an obstacle is hit, 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.
Gyrotedder
GF422
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Safety
Page 17
3. Location and description of safety decals on the machine
Location of safety decals
Gyrotedder
GF422
Safety
15
Page 18
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.
Gyrotedder
GF422
Projections (3)
Stones and other debris pro jected by the moving parts
can travel a long distance. Always stay at a safe distance
from the machine.
Rotary tools (4)
To prevent entanglement keep a safe distance from the
machine.
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Safety
Page 19
Body crushing (5)
Stay a safe distance from the machine. Crushing hazard.
Gyrotedder
GF422
Safety
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Page 20
4. Road safety equipment and recommendations
Gyrotedder
GF422
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 (15.5 mph).
The rear safety device comprises:
- 2 red reflectors (1).
The side device comprises:
- 2 amber reflectors (1)(1 on each machine side).
1
1
1
The front safety device comprises:
- 2 white reflectors (1).
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Safety
1
Page 21
Tyre pressure
- (1): 2.0 bar (29 psi)
Gyrotedder
GF422
Instructions specific to France
The machine must be fitted with specific signalling
panels to comply with the road regulations.
Signalling: Kit no. 1116470.
1
1
1
1
+
Signalling: Kit no. 1016430.
Instructions specific to Italy
The machine must be fitted with specific signalling
panels to comply with the road regulations.
Signalling: Kit no. 1116760.
Safety
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$Machine specifications
1. Description and glossary
0
Gyrotedder
GF422
7
8
5
1 : Three-point hitch coupler 2 : Hitch pins
3 : Parking stand 4 : Front guard
5 : Outer guard 6 : Rotor lift cylinder
7 : Outer wing 8 : Outer rotor pivot lock
9 : Central gearbox 10 : Drive shaft support
6
9
10
4
2
1
4
2
3
5
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Machine specifications
Page 23
2. Technical specifications
Attachment type 3 point linkage category 1 and 2
Number of rotors 4
Number of tine arms per rotor 6
Working width (DIN11220) 4.20 m (13’9’’)
Width in working position 4.66 m (15’3’’)
Length in working position 2.06 m (6’9’’)
Height in working position x.xx m (y’y’’)
Width in transport position 2.48 m (8’1’’)
Gyrotedder
GF422
Length in transport position 2.06 m (6’9’’)
Height in transport position x.xx m (y’y’’)
Minimum PTO power requirement 15 kW (20 hp)
PTO speed 540 min
Weight 452 kg (996 lb)
Tyres 15/6.00-6
Tyre pressure 2.0 bar (29 psi)
-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 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: 78.7 dB(A)
Tractor + machine: 77.7 dB(A)
Machine specifications
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Page 24
$Putting into service
1. Description of control elements
Gyrotedder
GF422
The machine is equipped with:
- 1 outer wing release cord accessible from the tractor
cab.
- 1 hydraulic hose for manoeuvring the outer sections.
1
22
Putting into service
Page 25
2. Coupling and uncoupling
Preparing the tractor
The machine adapts to tractors fitted with a 3-point hitch
coupler category 1 or 2.
The tractor nominal PTO speed must be 540 min
The tractor must be equipped with a single-acting
hydraulic outlet.
Hitch pin parallelism
Gyrotedder
GF422
-1
.
Adjust tractor lift rods so that lower linkage arms are at
equal height from ground.
Lateral adjustment of the lower linkage arms
Balance the play on either sides of the lift linkage and lock lower link stabilizers.
Putting into service
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Page 26
Coupling the machine
- Lower the tractor three-point linkage.
- Position tractor lower links in line with machine lower
yokes.
Category 1 linkage
Gyrotedder
GF422
- Place lower links in position (a).
- Secure each lower link with lynch pin.
Category 2 linkage
- Place lower links in position (b).
- Secure each lower link with lynch pin.
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Putting into service
Page 27
- (a) Pivot lock (1).
The top link can be placed in 3 different
positions:
- Select the position according to the
tractor coupling points and the length of
the top link.
- (b) Attach top link to the machine swinging yoke top
hitch pin.
- Secure with R-clip.
- Adjust the top link length so that the machine is
horizontal with regards to the ground.
- (c) Lift the machine using the tractor lift linkage until
the parking stand no longer rests on the ground.
- Remove R-clip (2).
- Lift parking stand (3).
- Insert R-clip (2) to lock parking stand (3).
Gyrotedder
GF422
3
Hydraulic connection
Connect hydraulic hose (1) to a single acting outlet.
2
1
Putting into service
25
Page 28
PTO shaft
Make sure that the PTO shaft is correctly
adjusted, to avoid premature wear and tear.
Gyrotedder
GF422
The tractor PTO stub must rotate at a speed of 540 min
Separate the two half PTO shafts and connect them to
the machine's input shaft and to the tractor PTO stub
The half PTO shaft with clutch must be on the limiter
side.
Check the length of the PTO shaft:
- Check the maximum overlap when the machine is in
work position and the tractor turned to the direction
which provides maximum overlap.
- 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 tr ansmission tubes
by the same length.
• Bevel and clean the tubes.
• Grease the inside of the outer tube.
-1
Check that there is still a minimum overlap of
250 mm (10’’) when the machine is in working
position and the tractor in line with the machine.
Never operate the PTO shaft at an angle X exceeding
30°.
26
Putting into service
Page 29
To avoid serious accidents, the PTO drive
shaft guards must be properly in place and
fixed with the chains provided.
Gyrotedder
GF422
Attach PTO shaft guard chain in hole ((1)) on machine
side.
Immediately replace any worn or damaged
guard.
1
Putting into service
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Page 30
Uncoupling the machine
Before carrying out any maintenance or
repairs on the machine, switch off the trac tor
engine, remove ignition key, wait until all
moving parts have come to a standstill and
apply park brake.
Park the machine on an even fairly level
ground.
From the transport position:
- Remove R-clip (1).
- Lower parking stand (2).
- Insert R-clip (1) to lock parking stand (2).
- Lower the tractor three-point linkage to rest the
machine on the ground.
Gyrotedder
GF422
2
- Uncouple and place PTO shaft in support (1).
- Disconnect and store hydraulic hose in holder (2).
- Remove cord from tractor and store it in its holder on
the machine.
1
2
1
28
Putting into service
Page 31
- Detach the top link from the machine end.
- Release lower links from hitch pins (1).
- Move forward with the tractor.
The machine is uncoupled.
Gyrotedder
GF422
The machine can be parked in working position .
Putting into service
29
Page 32
$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
Gyrotedder
GF422
From the working position:
- Pull release cord until stop pins are released.
- Shift tractor single acting valve to raise outer wings:
Check that transport locks (1) are fully
engaged.
1
1
30
Instructions for transport
Page 33
- Lower rotor pivot lock (1).
- Pivot rotor by 180 degrees.
Check that the rotor pivot lock is fully
engaged.
Gyrotedder
GF422
1
- Repeat procedure on second rotor.
- Lift the machine with the tractor's three point linkage.
- Pivot lock (1) to lock swinging yoke (2).
The machine is in transport position.
Never engage the tractor PTO drive when t he
machine is in transport position.
2
Instructions for transport
1
31
Page 34
2. Conformity with the road regulations
Before driving the machine on public roads,
ensure that the machine complies with
current highway code regulations.
Instructions specific to France:
Never tow the machine at a speed exceeding
25 km/h (15.5 mph).
Check that reflectors are clean.
Gyrotedder
GF422
Check that transport locks (1) are fully
engaged.
Check that rotor pivot locks (2) are fully
engaged.
Regularly check the tyre pressure.
Make sure the release cord cannot be
operated inadvertently.
2
1
2
1
32
Instructions for transport
Page 35
$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
Gyrotedder
GF422
From the transport position:
- Lower rotor pivot lock (1).
- Pivot rotor by 180 degrees.
Check that the rotor pivot lock is fully
engaged.
Never engage the tractor PTO drive when t he
machine is in transport position.
- Repeat procedure on second rotor.
1
Instructions for work
33
Page 36
- Pivot lock (1) to unlock swinging yoke (2).
- Lower the tractor three-point linkage to rest the
machine on the ground.
- Activate transport position cylinders to release stop
pins.
- Pull release cord until stop pins are released.
- Depressurize cylinders to allow outer sections to
move downwards:
• The outer wings unfold until they come into contact
with the ground.
If equipped, shift tractor valve in the detented
float position.
Gyrotedder
GF422
2
1
The machine is in working position.
2. Putting the machine in headland turn position
From the working position:
- Shift tractor single acting valve to raise outer wings.
The headland turn position is obtained by
bringing the outer rotors in contact with their
stops (1).
The machine is in headland turn position.
1
1
34
Instructions for work
Page 37
3. Adjustments in working position
Before adjusting, maintaining or repairing
the machine, turn off ignition key and wait
until all moving parts have come to a
complete stop.
Pitch angle adjustment
Refine pitch angle adjustment using the top link for the
tines to slightly brush the soil (D).
Gyrotedder
GF422
The distance between tines and soil is a very
important factor with regards to the machine
work quality and tine service life.
Work in oblique position
The oblique position can be used when tedding on field
edges.
From the working position:
- Slightly lift the machine off the ground using the tractor
lift linkage.
- Push lever (1) downwards to free lock (2) from its
housing.
- Swivel the wheel until it slips into the hole (a) (b):
(a): Forage ejection to the right.
(b): Forage ejection to the left.
2
1
Instructions for work
35
Page 38
4. Machine use
The machine can turn at 180° without loosing working
width or time.
The following drawing shows one way of using the
machine.
Preferably take large headland turns.
Gyrotedder
GF422
Groundspeed
The following factors determine the forward speed:
- The humidity level (This factor is particularly
determining when wilting).
- The crop density.
- The crop composition (blade length).
- The ground contours.
Below are a few recommendations for your information:
In dense and average length crop:
- When wilting a crop with low humidity level:
• the speed is approximately of 7 to 8 km/h (4.4 -
5mph).
- When tedding a more or less dry crop:
• The speed can reach approximately 10 to 12 km/h
(6.3 - 7.5 mph).
• The dryer the crop, the more the PTO speed must
be reduced.
• For a very dense, humid crop composed of very
long blades, the forward speed must be reduced.
36
Instructions for work
For difficult working conditions, it is
recommended to operate at a lower forward
speed.
Page 39
$Optional equipment
1. Tine arm deflectors
Part no. 1116300
This equipment helps prevent hay from becoming
trapped by the tine arms and rotor housings during work.
Tine arm deflectors (1):
• Left turn: (X12)
• Right turn: (X12)
Gyrotedder
GF422
2. DUPLEX gearbox
Part no. 1116440
The DUPLEX gearbox enables forming night windrows
by reducing the rotor rotation speed or maintaining the
high rotation speeds necessary for tedding.
Machine use
To tedd:
- Connect PTO shaft to the central gearbox input sh aft.
- Fit PTO cover inside the guard to protect the non used
pto stub.
Optional equipment
37
Page 40
For forming night windrows:
- Connect PTO shaft to the DUPLEX gearbox input
shaft.
- Fit PTO cover inside the guard to protect the non used
pto stub.
Gyrotedder
GF422
38
Optional equipment
Page 41
3. Three point frame damper
Kit no. 1126270
The stabilizer (1) is recommended for work on irregular
grounds or slopes.
Gyrotedder
GF422
1
4. Wheel deflectors
Kit no. 1126530
This equipment enables preventing crop from wrapping
around the wheels and wheel columns.
This equipment is fitted on the central wheels.
Optional equipment
39
Page 42
5. Lower hitch pins
Kit no. 1146230
This equipment allows extending the 3-point frame arms
when the tractor coupling height is insufficient:
- The coupling height is increased by 125 mm (5’’).
Gyrotedder
GF422
6. Safety strap
Part no. 58599920
The safety straps firmly link the 1 tine prongs together.
The safety straps help prevent a broken tine prong to be
lost in the crop and damage the baler, self-loading
forage wagon or silage harvester.
40
Optional equipment
Page 43
$Maintenance and storage
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.
Check that hydraulic hose valves are shutoff.
Gyrotedder
GF422
1. Frequency chart
Lubrication
Oil:
- The outer wing hydraulic cylinder
pivot pins.
- Pivot points.
Grease:
- The outer wing pivot pins.
- The "DIGIDRIVE" coupling fingers.
After the
first 10
hours of
use
Once per
week
3
3
Every 200
Every 50
hours
hours or at
the end of
the season
33
33
- The rotor hubs.
- The rotor housings.
Level control:
- Central gearbox
33
33
3
Maintenance and storage
41
Page 44
Gyrotedder
GF422
After the
first 10
hours of
use
Maintenance
Check:
- Tightness of all bolts and nuts.
3
2. Lubrication
The pictorials show the points to be greased (Part
no. 09905400).
- Clean grease nipples before greasing.
Lubricate with SHELL multi-purpose grease
grade NLGI 2.
Once per
week
Every 50
hours
Every 200
hours or at
the end of
the season
42
Maintenance and storage
Page 45
PTO shaft
- Every 8 hours:
• U-joints (1).
- Every 20 hours:
• transmission tube (2).
- Every 40 hours:
• guide rings (3).
Oil
Gyrotedder
GF422
Oil with SHELL SAE 90 gear oil.
- The outer wing hydraulic cylinder pivot pins.
- Pivot points.
Grease
- The outer wing pivot pins.
Maintenance and storage
43
Page 46
- The "DIGIDRIVE" coupling fingers.
The rotor hubs.
Gyrotedder
GF422
The rotor housings.
44
Maintenance and storage
Page 47
Level control
Central gearbox
The central gearbox is lubricated with 0.8 kg
(1.76 lb) kg of SHELL multi-purpose grease
grade NLGI2.
Gyrotedder
GF422
Check the main gearbox oil content:
From the working position:
- Remove 4 bolts (1).
- Remove cover (2).
- Check the main gearbox oil content:
• Top up if necessary.
- Install cover (2).
- Reinstall the 4 bolts (1):
• Torque to 3 daN m (22 lbf ft).
3. Maintenance
Check
Tightness of all bolts and nuts.
1
2
Maintenance and storage
45
Page 48
Replacing a tine
Gyrotedder
GF422
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.
2 types of tines are fitted on the machine:
- Tines (1) for rotors rotating clockwise
(a).
- Tines (2) for rotors rotating
counterclockwise (b).
Check that the tines are fitted properly with
regards to the rotor direction of rotation.
K
2
1
UHN
From the working position:
- Remove attachment screw (1).
46
Maintenance and storage
1
Page 49
Respect mounting instructions so that the crop's
pressure (a) closes the coils.
- Replace tine.
Check attachment bolt, washer and nut. Replace
if necessary.
- Reassemble the unit.
Gyrotedder
GF422
Check that the tine is properly embedded in
the tine arm.
- Tighten attachment screw.
• Torque: 16 daN m (148 lbf ft).
Maintenance and storage
47
Page 50
4. Storage
At the end of each season:
- Clean the machine thoroughly.
- Fully lubricate the machine.
- Check tyre pressure:
• 2.0 bar (29 psi).
- Touch up any areas of damaged paintwork.
- Check and replace worn or damaged tin es.
- Put the machine under cover in a dry place.
At the start of each season:
- Re-read the operators' manual.
- Check tyre pressure:
• 2.0 bar (29 psi).
- Check that all nuts and bolts are sufficiently tightened.
- Make sure all the guards are in place.
Gyrotedder
GF422
48
Maintenance and storage
Page 51
$Limited warranty
Gyrotedder
GF422
Limited warranty
49
Page 52
Gyrotedder
GF422
50
Limited warranty
Page 53
Page 54
Page 55
Page 56
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