KUHN GF7702T Operator's Manual
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KUHN GF7702T Operator's Manual

KUHN GF7702T Operator's Manual

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OPERATOR'S MANUAL
KN150AGB C
Gyrotedder
KN150AGB C
- English - 08-2010

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Summary of Contents for KUHN GF7702T

  • Page 1 OPERATOR'S MANUAL KN150AGB C Gyrotedder KN150AGB C - English - 08-2010...

  • Page 3: Dear Owner

    GF7702T $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.

  • Page 4: Table Of Contents

    Gyrotedder GF7702T $Contents Dear Owner ........................1 Contents .........................2 Identification of the machine..................4 Rear view (transport position)......................4 Front view (working position) ......................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 ............18 Road safety equipment and recommendations................21...
  • Page 5 Gyrotedder GF7702T Instructions for work ....................39 Putting the machine into work position ..................39 Adjustments in working position....................41 Machine use............................ 43 Optional equipment ..................... 45 Spare wheel ............................ 45 Large transport wheels........................45 Prop wheel ............................46 Maintenance and storage.................... 48 Frequency chart ..........................

  • Page 6: Identification Of The Machine

    Gyrotedder GF7702T $Identification of the machine 1. Rear view (transport position) 2. Front view (working position) Identification of the machine...

  • Page 7: Model Identification Plate

    Gyrotedder GF7702T 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. GF7702T Type: Serial no.: 4. Optional equipment Tick box corresponding to the equipment fitted on your machine: Kit no.

  • Page 8: Safety

    Gyrotedder GF7702T $Safety 1. Description of symbols used in this document This symbol indicates a potentially hazardous situation that if not avoided, could result in serious bodily injury. This symbol is used to identify special instructions or procedures which, if not followed strictly, could result in machinery damage.

  • Page 9: Safety Instructions

    Never let anyone operate the machine who is not trained to do so. Should you have any difficulties in understanding certain parts in this manual, please contact your KUHN dealer. Precautions to be taken before carrying out any operations on the machine...
  • Page 10 Gyrotedder GF7702T 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.
  • Page 11 Gyrotedder GF7702T 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.
  • Page 12 Gyrotedder GF7702T For machines with hoppers or tanks: - If the total unit weight exceeds the tractor Gross Combined Weight Rating in accordance with the countrie's legislation, empty the hopper to travel on public roads. - In any case, we recommend to travel on public roads with empty hoppers and tanks.
  • Page 13 Gyrotedder GF7702T Stage 2: - Couple the machine to the tractor. To measure: - Load on front axle (t1): • Tractor + machine (transport position). To do: - If the front axle load (t1) is below 20% of the tractor tare (T), add ballast weights (M1) to exceed the minimum load on the front axle.
  • Page 14 Gyrotedder GF7702T Stage 4: To measure: - Load on rear axle (t2): • Tractor + machine (transport position). • Ballast weights. Checking: - Check in the tractor's operator's manual that the value measured is below the maximum allowed tractor rear axle load.
  • Page 15 Gyrotedder GF7702T 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.
  • Page 16 Gyrotedder GF7702T 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.
  • Page 17 Gyrotedder GF7702T Precautions during manoeuvres When moving the machine from the transport position to the working position and vice versa, make sure that nobody is within the machine pivoting area. Remote controlled components Danger of crushing and shearing can exist when components are operated by hydraulic or pneumatic controls.
  • Page 18 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.). Projection of stones and foreign objects For driver safety, always use a tractor equipped with a cab.
  • Page 19 Gyrotedder GF7702T 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.

  • Page 20: Location And Description Of Safety Decals On The Machine

    Gyrotedder GF7702T 3. Location and description of safety decals on the machine Location of safety decals Safety...
  • Page 21 Gyrotedder GF7702T 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 tractor...
  • Page 22 Gyrotedder GF7702T Body crushing (5) Stay a safe distance from the machine. Crushing hazard. Crushing area (6) Never operate in an area where there is a crushing risk before all moving parts have come to a complete stop. Coupling device (7) Never couple the machine to the multihole bar, there is a risk of tipping over.

  • Page 23: Road Safety Equipment And Recommendations

    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.
  • Page 24 Gyrotedder GF7702T The side device comprises: - 2 amber reflectors (1) on each machine side. Tyre pressure - Transport wheels (1): 3.2 bar (46 psi). - Central parts (2): 2.0 bar (29 psi). - Outer wings (3): 1.5 bar (22 psi).

  • Page 25: Machine Specifications

    Gyrotedder GF7702T $Machine specifications 1. Description and glossary Drawbar Coupling device Front parking stand Front guard Outer guard Outer wing folding cylinder Pitch angle adjustment handle Outer wing Drive shaft support 10 : Central gearbox 11 : Transport wheel 12 :...

  • Page 26: Technical Specifications

    Gyrotedder GF7702T 2. Technical specifications GF7702T Attachment type Drawbar coupled to the tractor hitch bar Number of rotors Number of tine arms per rotor Working width (DIN 11220) 7.80 m (25’7’’) Width in working position 8.09 m (26’6’’) Length in working position 4.80 m (15’9’’)
  • Page 27 Gyrotedder GF7702T 3. Required equipment Coupling the machine The country of destination determins the type of coupling device supplied with the machine: Kit no. 1126400: Attachment yoke diameter 40 mm (1.6’’). Kit no. 1126410: Ball hitch drawbar diameter 80 mm (3.1’’).

  • Page 28: Sound Levels

    Gyrotedder GF7702T 4. Sound levels Sound levels have been measured in accordance with the measuring methods as defined 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: 78.7 dB(A)

  • Page 29: Putting Into Service

    Gyrotedder GF7702T $Putting into service 1. Description of control elements The machine is equipped with: - 1 outer wing release cord accessible from the tractor cab. - A release cord to control the machine transport/work position setting. - 2 hydraulic hoses that control the transport/work position setting of the transport wheels and the folding of the outer wings.

  • Page 30: Coupling And Uncoupling

    Gyrotedder GF7702T 2. Coupling and uncoupling Description of coupling elements The machine is equipped with: - A PTO shaft 1 3/8’’ - 6 splines (1). - 4 hydraulic hoses (3). - A 7-pin plug (2) . Preparing the tractor The machine adapts to tractors fitted with a hitch bar.
  • Page 31 Gyrotedder GF7702T Coupling the machine Depending on the type of coupling device supplied with the machine, the procedure may be slightly different. - Couple machine to tractor and secure hitch pin. - Raise parking stand (1) using crank (2). Putting into service...
  • Page 32 Gyrotedder GF7702T - Remove specific pin (1) (Pin with automatic locking mechanism). - Retract parking stand. - Lock parking stand using specific pin (1). - Place release cord handles in the tractor cab. Safety chain The machine is supplied with a ANSI/ASAE safety chain type with a minimum ultimate system strength of 45 kN (10100 lbf).
  • Page 33 Gyrotedder GF7702T Hydraulic connections The tractor must be equipped with 2 double acting valves. Connect the 2 hydraulic hoses that control the machine transport/work position setting to the same tractor double acting valve. Connect the 2 hydraulic hoses that control the oblique position setting cylinder to the same tractor hydraulic double acting valve.
  • Page 34 Gyrotedder GF7702T PTO shaft Make sure that the PTO shaft is correctly adjusted, to avoid premature wear and tear. 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.
  • Page 35 Gyrotedder GF7702T To avoid serious accidents, the PTO drive shaft guards must be properly in place and fixed with the chains provided. On machine side, attach pto guard chain around the hose passing hole (1). Immediately replace any worn or damaged guard.
  • Page 36 Gyrotedder GF7702T Uncoupling the machine Park the machine on an even fairly level ground. From the transport position: - Block machine with wheel chocks (1). - Remove specific pin (1). - Lower parking stand. - Lock parking stand using specific pin (1).
  • Page 37 Gyrotedder GF7702T - Disconnect and store hydraulic hoses on holder (1). - Remove release cord handles from tractor cab and store them on the machine. - Disconnect and store signalling plug on holder (1). - Remove and store safety chain on the drawbar.

  • Page 38: Instructions For Transport

    Gyrotedder GF7702T $Instructions for transport Before placing the machine into transport position: - Disengage tractor PTO. - 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.
  • Page 39 Gyrotedder GF7702T - Pull outer wing release cord. - Operate transport/work cylinders in the transport position direction until cylinders reach travel end: • The wings will lift further than headland turn position (a) and (b). - Pull cord linked to the hydraulic valve (1): - Activate the transport/work cylinder control valve in the "pivot into transport"...

  • Page 40: Conformity With The Road Regulations

    Gyrotedder GF7702T 2. Conformity with the road regulations Before driving the machine on public roads, ensure that the machine complies with current highway code regulations. Never tow the machine at a speed exceeding 40 km/h (25 mph). - Check that reflectors are clean.

  • Page 41: Instructions For Work

    Gyrotedder GF7702T $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 From the transport position: - Pull cord linked to the hydraulic valve (1).
  • Page 42 Gyrotedder GF7702T On steep slopes, slightly lift the machine off the ground using the transport wheels for an easier disengagement of the nipple (1) from the holder oblong hole (2). - Operate transport/work position cylinder in work position direction to free transport locks.

  • Page 43: Adjustments In Working Position

    Gyrotedder GF7702T 2. 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 Adjust to maximum pitch angle in large crop quantities.
  • Page 44 Gyrotedder GF7702T Work in oblique position The oblique position can be used when tedding on field edges. From the working position: - Operate hydraulic oblique position cylinder (1) to pivot rotor wheels in the required direction. Instructions for work...

  • Page 45: Machine Use

    Gyrotedder GF7702T 3. Machine use 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. General advice: In dense and average length crop: - When wilting a crop with high humidity level.
  • Page 46 Gyrotedder GF7702T Adaptation to the ground irregularities Transport wheels The use of transport wheels improves the ground countour adaptation. Adjustments for work This configuration does not allow work in oblique position. From the working position: - Pull cord linked to the hydraulic valve (1).

  • Page 47: Optional Equipment

    Gyrotedder GF7702T $Optional equipment 1. Spare wheel Kit no. 1126330 Dimensions: 16 x 6.5 - 8 (6 PLY) Tire pressure: 1.5 bar (22 psi). 2. Large transport wheels Kit no. 1126370 Dimensions: 26 x 12.00 - 12 Tire pressure: 1.5 bar (22 psi).

  • Page 48: Prop Wheel

    Gyrotedder GF7702T 3. Prop wheel Kit no. 1126340 The prop wheel provides better adaptation to irregular ground contours. The prop wheel can be fitted either on the right or left side of the front frame. Machine use Putting the machine into work position - Place the machine in working position.
  • Page 49 Gyrotedder GF7702T Lubrication Every 50 hours Grease: - Pivot points (2). Optional equipment...

  • Page 50: Maintenance And Storage

    Gyrotedder GF7702T $Maintenance and storage 1. Frequency chart After the first Every 50 hours 10 hours of Once per week or at the end of the season Lubrication Grease: - The outer wing pivot pins - The <DIGIDRIVE> coupling fingers...

  • Page 51: Lubrication

    Gyrotedder GF7702T 2. Lubrication 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 pictorials show the points to be greased (Part no.
  • Page 52 Gyrotedder GF7702T Lubrication Primary PTO shaft Lubricate the central disc of each universal joint with PTO shaft positioned so that it is straight. - Every 20 hours: • U-joints (1). • Transmission tube (2). - Every 100 hours: • Guide rings (3).
  • Page 53 Gyrotedder GF7702T Grease - The outer wing pivot pins. - The <DIGIDRIVE> coupling fingers. Maintenance and storage...
  • Page 54 Gyrotedder GF7702T - The pitch angle adjustment handle. - The transport carriage. Maintenance and storage...
  • Page 55 Gyrotedder GF7702T Oil with SHELL SAE 90 gear oil. - The outer wing hydraulic cylinder pivot pins. - Pitch angle adjustment pivot points. Maintenance and storage...

  • Page 56: Maintenance

    Gyrotedder GF7702T 3. Maintenance Central gearbox oil level control main gearbox lubricated with 0.7 L (0.18 US gal) SHELL SPIRAX extreme-pressure gear oil with viscosity grade SAE 80W90 and API grade GL5. Check the main gearbox oil content: From the working position: - Remove plug (1).
  • Page 57 Gyrotedder GF7702T Replacing a tine Before leaving tractor 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.
  • Page 58 Gyrotedder GF7702T From the working position: - Remove attachment screw (1). 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. Check that the tine is properly embedded in the tine arm.
  • Page 59 Gyrotedder GF7702T Tyre pressure - Transport wheels (1): 3.2 bar (46 psi). - Central parts (2): 2.0 bar (29 psi). - Outer wings (3): 1.5 bar (22 psi). Maintenance and storage...

  • Page 60: Storage

    Gyrotedder GF7702T 4. Storage At the end of each season: - Clean the machine thoroughly. - Lubricate the whole machine. - Check tyre pressure: • Transport wheels: 3.2 bar (46 psi). • Central parts: 2.0 bar (29 psi). • Outer wings: 1.5 bar (22 psi).

  • Page 61: Appendix

    Gyrotedder GF7702T $Appendix 1. Calculating the load on an axle When coupling a tool to the front and rear 3-point lift linkage, the maximum authorized payload must not be exceeded. The load on the tractor front axle must always represent 20 % of the tractor unladen weight.
  • Page 62 Gyrotedder GF7702T Rear tool or front-rear combination: 1) Calculation of the minimum front ballast weight M1 minimum M2 x (c+d) - T1 x b + 0.2 x T x b minimum Write the minimal additional weight in the chart. Front tool:...
  • Page 63 Gyrotedder GF7702T Table: Actual value obtained Value authorized Double value of the by calculation according to authorized capacity operator's manual per tyre (2 tyres) Minimum front/rear ballasting kg ≤ Total weight kg ≤ kg ≤ Load on front axle kg ≤...
  • Page 64 Gyrotedder GF7702T Determining the machine weight (M2) and the position of its centre of gravity (d) If the data required to calculate the total weight, axle loads and minimum ballasting are not supplied, use the following method. Tractor only: - T1: Load on front axle.
  • Page 65 Gyrotedder GF7702T - T: Axle loads. • Tractor only. Appendix...
  • Page 66 Gyrotedder GF7702T Rear tool or front-rear combination: If the total unit weight exceeds the tractor Gross Combined Weight Rating in accordance with the countrie's legislation, empty the hopper to travel on public roads. In any case, we recommend to travel on public roads with empty hoppers and tanks.

  • Page 67: Limited Warranty

    Gyrotedder GF7702T $Limited warranty Limited warranty...
  • Page 68 Gyrotedder GF7702T Limited warranty...

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