KUHN GMD2810-FF Operator's Manual
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KUHN GMD2810-FF Operator's Manual

KUHN GMD2810-FF Operator's Manual

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OPERATOR'S MANUAL
KN206KGB E
Disc mower
Original instructions
KN206KGB E
- English - 07-2010

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Summary of Contents for KUHN GMD2810-FF

  • Page 1 OPERATOR'S MANUAL KN206KGB E Disc mower Original instructions KN206KGB E - English - 07-2010...

  • Page 3: Dear Owner

    GMD2810-FF $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

    Disc mower GMD2810-FF $Contents Dear Owner ........................1 Contents .........................2 Identification of the machine..................4 Front view............................4 Rear view............................4 Model identification plate ........................5 Optional equipment..........................6 Safety..........................7 Description of symbols used in this document................7 Safety instructions ...........................8 Location and description of safety decals on the machine ............20 Road safety equipment and recommendations................24...
  • Page 5 Disc mower GMD2810-FF Instructions for work ....................40 Putting the machine into work position ..................40 Adjustments in working position....................41 Machine use............................ 45 Optional equipment ..................... 46 Side deflector kit ..........................46 1 3/8’’ - 6 spline pto shaft....................... 47 1 3/8’’...

  • Page 6: Identification Of The Machine

    Disc mower GMD2810-FF $Identification of the machine 1. Front view 2. Rear view Identification of the machine...

  • Page 7: Model Identification Plate

    Disc mower GMD2810-FF 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. KUHN S.A. 67700 SAVERNE - FRANCE GMD2810 Type: TYPE N°...

  • Page 8: Optional Equipment

    Disc mower GMD2810-FF 4. Optional equipment Tick box corresponding to the equipment fitted on your machine: Kit no. 1066020: Side deflector kit. Kit no. 1066080 (x2): Raised skid shoes 85 mm (3.4’’). For machines up to serial number A0014 Kit no. 1066160 (x2): Raised skid shoes 85 mm (3.4’’).

  • Page 9: Safety

    Disc mower GMD2810-FF $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 10: 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 11 Disc mower GMD2810-FF 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.).
  • Page 12 Disc mower GMD2810-FF 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 13 Disc mower GMD2810-FF 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 14 Disc mower GMD2810-FF 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 15 Disc mower GMD2810-FF 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 16 Disc mower GMD2810-FF 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 17 Disc mower GMD2810-FF 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 18 Disc mower GMD2810-FF 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 19 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. Safety...
  • Page 20 Disc mower GMD2810-FF 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...
  • Page 21 Disc mower GMD2810-FF Precautions for machine use After each use, check the cutting tools (discs, knives) and their attachment hardware in accordance with the instructions given in the present manual. Immediately replace any worn, damaged or missing cutting tool or element.

  • Page 22: Location And Description Of Safety Decals On The Machine

    Disc mower GMD2810-FF 3. Location and description of safety decals on the machine Location of safety decals 59900300 59900600 599011001 59900600 Safety...
  • Page 23 Disc mower GMD2810-FF 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...
  • Page 24 Disc mower GMD2810-FF Manoeuvring area (5) Stay a safe distance from the machine. Crushing hazard. 59900600 Rotating cutting tools (6) Keep away from the mower knives all the time the engine is running, the PTO drive engaged and the moving parts have not come to a complete stop.
  • Page 25 Disc mower GMD2810-FF Danger accumulator (9) The hydraulic accumulator contains gaz and oil under pressure. To park the machine or carry out maintenance work, conform with the instructions given in the operator's manual Safety...

  • Page 26: Road Safety Equipment And Recommendations

    GMD2810-FF 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. The rear safety device comprises: - A signalling light (1). - A signalling panel (2).

  • Page 27: Machine Specifications

    Disc mower GMD2810-FF $Machine specifications 1. Description and glossary Parking stand Check chain Front guard Pressure gauge Connecting frame Hitch pins Cutterbar Central gearbox Lift pump 10 : Lift/compensating cylinder 11 : Hydro-pneumatic accumulators 12 : Work/transport cylinder 13 :...

  • Page 28: Technical Specifications

    Disc mower GMD2810-FF 2. Technical specifications GMD2810-FF Attachment type 3 point, Category 2 Number of discs Working width 2.66 m (8’9’’) Width in working position 4.87 m (16’) Height in working position 1.33 m (4’4’’) Length in working position 1.41 m (4’7’’) Width in transport position 1.79 m (5’10’’)

  • Page 29: Putting Into Service

    Disc mower GMD2810-FF $Putting into service 1. Description of control elements The machine is fitted with a release cord operated from the tractor cab. The machine is supplied with an 18 mm box wrench to carry out certain adjustment and maintenance tasks (Separate packet).

  • Page 30: Coupling And Uncoupling

    Disc mower GMD2810-FF 2. Coupling and uncoupling The machine adapts to tractors fitted with a 3 point linkage category 2. Description of coupling elements - A PTO shaft 1 3/8’’ - 6 splines. - A check chain. - A release cord.
  • Page 31 Disc mower GMD2810-FF Preparing the machine Linkage adjustment - Measure dimension A. If measure A is below 2.20 m (7’3’’): - Place lower links in position a: If measure A exceeds 2.20 m (7’33’’): Place lower links in position b:...
  • Page 32 Disc mower GMD2810-FF Coupling the machine - Lower the tractor three-point linkage. - Position ball joints of tractor lower links in line with machine lower yokes. - Attach the lower links to the hitch pins. - Secure each hitch pin with lynch pin.
  • Page 33 Disc mower GMD2810-FF Hydraulic connections The machine hydraulic suspension circuit is pressurized at the factory. Connect the 2 hydraulic hoses of the transport/work cylinder to a double acting valve with float position. Electrical connections Connect 7-pin plug to the tractor.
  • Page 34 Disc mower GMD2810-FF Primary PTO shaft Make sure that the PTO shaft is correctly adjusted, to avoid premature wear and tear. The direction of rotation is shown on a decal. Separate the two half PTO shafts and connect them to the machine's input shaft and to the tractor PTO stub.
  • Page 35 Disc mower GMD2810-FF On machine side, attach chain around the pto shaft support located between the top link yoke. Immediately replace any worn or damaged guard. Intermediate PTO shaft Before adjusting, maintaining or repairing the machine, turn off ignition key and wait until all moving parts have come to a complete stop.
  • Page 36 Disc mower GMD2810-FF - Tighten nuts to release the friction discs. - Let the friction discs slip for a few seconds. - Thread nuts away until they bottom against the threaded studs. The friction slip clutch is ready to function.
  • Page 37 Disc mower GMD2810-FF Adjusting the machine Positioning of lower links - Measure dimension A. - Adjust tractor lower link stabilizers to measure A = 50 mm (2’’). Hitch pin parallelism. From the transport position: - Pull on cord to release latch.
  • Page 38 Disc mower GMD2810-FF Frame height and check chains. - Tractor fitted with a hydraulic position control function: • Lower the tractor lift linkage so that hitch pins are at a distance H = 550 mm / 1’10’’ from the ground.
  • Page 39 Disc mower GMD2810-FF Uncoupling the machine For tractors not fitted with a hydraulic position control function, unhook and attach check chain to its support. - Place the machine in transport position. - Remove lynch pin (3). - Remove lock pin (2).

  • Page 40: Instructions For Transport

    Disc mower GMD2810-FF $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 located in the machine pivoting area. If there is someone, make sure the person moves away.

  • Page 41: Conformity With The Road Regulations

    Disc mower GMD2810-FF 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 signalling panel is clean and that the lighting equipment functions before going on public roads.

  • Page 42: Instructions For Work

    Disc mower GMD2810-FF $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...

  • Page 43: Adjustments In Working Position

    Disc mower GMD2810-FF 2. Adjustments in working position Cutting height The desired cutting height is obtained directly by adjusting the top link length. The height can be adjusted between 30 and 60 mm (1.2’’ - 2.4’’) depending on the tractors.
  • Page 44 Disc mower GMD2810-FF Ground pressure The ground pressure adjustment determins the safety breakback adjustment: Example: when the pressure in the gauges increases, the mowing unit ground pressure decreases and the breakback force increases. - The mowing unit suspension is obtained by a hydro- pneumatic accumulator.
  • Page 45 Disc mower GMD2810-FF Pressure adjustment Increasing pressure hydro-pneumatic accumulators: 59954900 - Place the machine in working position. The following adjustments do not cause the machine to move. - Open the hydraulic valve using the 18 box spanner supplied with the machine. (Position (1)).
  • Page 46 Disc mower GMD2810-FF Swathing system The swathing system comprises: - 2 Swath wheels. - The swath width is 1.7 m (5’7’’) approximately. Check that there is a minimum clearance (J) of 15 mm (0.59’’) between the cone rib and the swath wheel.

  • Page 47: Machine Use

    Disc mower GMD2810-FF 3. Machine use Before mowing and to reduce risks of projections, lower the front guard. Keep all persons and animals away from the machine danger zone. Never lean or step on the protection cover. Before the machine engages the crop:...

  • Page 48: Optional Equipment

    Disc mower GMD2810-FF $Optional equipment 1. Side deflector kit Kit no. 1066020 The side deflectors are recommended for mowing dense or down crops with long stems. Fit the 2 side deflectors on the outer side plates of the cutterbar stiffener.

  • Page 49: 3/8'' - 6 Spline Pto Shaft

    Disc mower GMD2810-FF 3. 1 3/8’’ - 6 spline pto shaft Part no. 4600415 A specific pto shaft is available as option for tractors equipped with a 1 3/8’’ - 6 spline pto stub. 4. 1 3/8’’ - 21 spline pto shaft Part no.

  • Page 50: Maintenance And Storage

    Disc mower GMD2810-FF $Maintenance and storage 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 Maintenance intervals are indicated for normal conditions of use.

  • Page 51: Lubrication

    Disc mower GMD2810-FF 2. Lubrication Except for the secondary PTO shaft lubrication, the machine must be placed in transport position for all maintenance operations (knife replacement, lubrication, etc). Clean grease nipples before greasing. Lubricate with SHELL multi-purpose grease grade NLGI 2.
  • Page 52 Disc mower GMD2810-FF Oil change The side angle gearbox Before draining oil, operate the machine for a few minutes so that the oil warms up. The angle gearbox is lubricated with 0.7 L (0.18 US gal) of SHELL SPIRAX A extreme-pressure oil for mechanical transmissions with viscosity grade SAE 80W90 and API grade GL5.
  • Page 53 Disc mower GMD2810-FF Central gearbox Before draining oil, operate the machine for a few minutes so that the oil warms up. The angle gearbox is lubricated with 2.3 L (0.6 US gal) of SHELL SPIRAX A extreme-pressure oil for mechanical transmissions with viscosity grade SAE 80W90 and API grade GL5.
  • Page 54 Disc mower GMD2810-FF Oil: - The moving parts and pivot points. Grease: - The mowing unit lift cylinder ball joint (1). - The mowing unit pivot pin (1). - the cutterbar connecting frame pivot pin (2) (2 greasers). Maintenance and storage...

  • Page 55: Maintenance

    Disc mower GMD2810-FF 3. Maintenance Before adjusting, maintaining or repairing the machine, turn off ignition key and wait until all moving parts have come to a complete stop. Hydro-pneumatic accumulators Before any work is carried out on a hydraulic circuit with hydro-pneumatic accumulator, depressurize the circuit.
  • Page 56 Disc mower GMD2810-FF Basic adjustments Drive Following all service operations on the drive system, check that the distance between the side gearbox drive shaft and the upper side of the cutterbar stiffener equals measure A: +/- 4 mm (0.15’’) - A = 577 mm (1’10’’)
  • Page 57 Disc mower GMD2810-FF Cutterbar The cutterbar is lubricated for life and requires no periodic maintenance. If in doubt as to the oil quantity contained in the cutterbar, fully drain and refill cutterbar respecting recommended oil quantity and quality. Following all service operations or in case of an oil leak, empty an refill cutterbar.
  • Page 58 GMD2810-FF Inspection of knives and securing elements Immediately replace worn or damaged parts with genuine KUHN parts. The following procedures take into account the 2 machine configuration possibilities: I ) For machines up to serial number K0014 Coupling device (a).
  • Page 59 Disc mower GMD2810-FF I ) For machines up to serial number K0014 Coupling device (a). Knives Inspect systematically all knives before the machine is operated to: - guarantee the cutting quality. - guarantee safety in use. - Prevent cutterbar damage risks.
  • Page 60 Disc mower GMD2810-FF 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 (2): - When there is visible distortion.
  • Page 61 Disc mower GMD2810-FF Replace nuts in the following cases (1): - When nut wear reaches a = 5 mm (0.2’’). Check the condition of the fixing elements regularly and also the torque of the knife-fixing bolt: - Torque: 12 daN m (89 lbf ft).
  • Page 62 Disc mower GMD2810-FF Parking - Clean the top side of the disk guard. - Clean cavities between disc and spring plate. - Fully insert special tool between disc and spring plate. - Pivot special tool downwards to free spring plate from screw head.
  • Page 63 Disc mower GMD2810-FF Fitting 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. Knife for disk rotating to the left: Part no. K6801410 Knife for disk rotating to the right: Part no.
  • Page 64 Disc mower GMD2810-FF - Check that screw head (2) is free to slide in spring plate hole (3). - Remove special tool. - Rotate disk by half a turn. - Repeat previous tasks. - Repeat previous tasks on the other disks.
  • Page 65 Disc mower GMD2810-FF Disc replacement - Place a wooden wedge (1) between two discs to stop them from moving. - Remove the 4 bolts (2) and their conical washers. - Remove disc cover (1). - Remove the disc (2). - Replace worn or damaged disk with a new disk.
  • Page 66 Disc mower GMD2810-FF - Reinstall bolts (1) and their conical washers. - Position conical centre of washers at the top. - Torque bolts to (1) : • Torque: 12 daN m (89 lbf ft). - Remove locking piece. Maintenance and storage...
  • Page 67 Disc mower GMD2810-FF Check that there is a minimum play of 1 mm (0.04’’) between the spring plate and the cutter bar skids. Otherwise, position spacer(s) (two maximum) between the housing and the spring plate (Part no. 56807100). Maintenance and storage...
  • Page 68 Disc mower GMD2810-FF Spring plate replacement Inner disc: The replacement of the inner disc spring plate must be carried out by a Kuhn authorized dealer. Intermediate discs: - Remove the disc. • See section: ’’Disc replacement’’. - Remove spring plate (1).
  • Page 69 Disc mower GMD2810-FF II ) For machines up to serial number K0014 Coupling device (b) or For machines with serial number as from K0015. Knives Inspect systematically all knives before the machine is operated to: - guarantee the cutting quality.
  • Page 70 Disc mower GMD2810-FF Fixing elements Check the fixing elements: - After hitting an obstacle. - When replacing knives. - At the start of each season. The fixing bolts should be changed in the following cases (2): - When there is visible distortion.
  • Page 71 Disc mower GMD2810-FF Replace nuts in the following cases (1): - When nut wear reaches a = 5 mm (0.2’’). Check the condition of the fixing elements regularly and also the torque of the knife-fixing bolt: - Torque: 12 daN m (89 lbf ft).
  • Page 72 Disc mower GMD2810-FF Parking - Clean the top side of the disk guard. - Clean cavities between disc and spring plate. - Fully insert special tool between disc and spring plate. - Pivot special tool downwards to free spring plate from screw head.
  • Page 73 Disc mower GMD2810-FF Fitting Knife for disk rotating to the left: - Part no. K6802970 Knife for disk rotating to the right: - Part no. K6802980 - Pivot special tool downwards to free spring plate from screw head. - Insert the new knife on the screw head.
  • Page 74 Disc mower GMD2810-FF - Check that screw head (2) is free to slide in spring plate hole (3). - Remove special tool. - Rotate disk by half a turn. - Repeat previous tasks. - Repeat previous tasks on the other disks.
  • Page 75 Disc mower GMD2810-FF Disc replacement - Place a wooden wedge (1) between two discs to stop them from moving. - Remove the 4 bolts (2) and their conical washers. - Remove disc cover (1). - Remove the disc (2). - Replace worn or damaged disk with a new disk.
  • Page 76 Disc mower GMD2810-FF - Reinstall bolts (1) and their conical washers. - Position conical centre of washers at the top. - Torque bolts to (1) : • Torque: 12 daN m (89 lbf ft). - Remove locking piece. Maintenance and storage...
  • Page 77 Disc mower GMD2810-FF Check that there is a minimum play of 1 mm (0.04’’) between the spring plate and the cutter bar skids. Otherwise, position spacer(s) (two maximum) between the housing and the spring plate (Part no. 56807100). Maintenance and storage...
  • Page 78 Disc mower GMD2810-FF Spring plate replacement Inner disc: The replacement of the inner disc spring plate must be carried out by a Kuhn authorized dealer. Intermediate discs: - Remove the disc: • See section: ’’Disc replacement’’. - Remove spring plate (1).

  • Page 79: Storage

    Disc mower GMD2810-FF 4. Storage At the end of each season - Clean the machine thoroughly. - Drain all gearboxes and refill with new oil (see "Lubrication" chapter). - Touch up any areas of damaged paintwork. - Put the machine under cover in a dry place.

  • Page 80: Trouble Shooting Guide

    Disc mower GMD2810-FF $Trouble shooting guide Problem Cause Remedy Dull or broken knives. Replace knives. Make sure the arrow on the Uneven stubble. Knives not installed correctly. knife upper face is pointing in the disc's direction of rotation. Too low PTO speed Increase speed to 540 min (rotational frequency).
  • Page 81 Disc mower GMD2810-FF Pressure to reach: 78 bar (1131 psi). Place the machine in working position: - Lower the tractor lift linkage so that hitch pins are at a distance 550 mm (1’10’’) from the ground. Open the hydraulic valve using the 18 box spanner supplied with the machine.

  • Page 82: Appendix

    Disc mower GMD2810-FF $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 83 Disc mower GMD2810-FF 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.
  • Page 84 Disc mower GMD2810-FF 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 85 Disc mower GMD2810-FF 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 86 Disc mower GMD2810-FF - T: Axle loads. • Tractor only. T=_______kg T=_______kg Appendix...
  • Page 87 Disc mower GMD2810-FF 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 88: Limited Warranty

    KUHN equipment from an authorized KUHN dealer, that such equipment is, at the time of delivery to such purchaser, free from defects in material and workmanship, and that such equipment is covered under this Limited Warranty providing the machine is used and serviced in accordance with the recommendations in the Operator's manual.
  • Page 89 - The warranty claim is completed on line via extranet - www.kuhn.com or submitted on a KUHN warranty claim form and returned to the Company within one month after the date of failure or the date of problem becoming apparent.
  • Page 90 $Specimen of the "Declaration of conformity" EC Declaration of conformity (European directive 2006/42/CE) The manufacturer: KUHN S.A., 4 impasse des fabriques B.P. 50060 F - 67706 SAVERNE CEDEX declares that the product described hereafter: Type: ’’Machine name’’ Serial no.: ’’Machine serial number’’...
  • Page 92 Société Anonyme au Capital de 2 530 000 Euros KUHN-BLANCHARD SAS - 24, route de Nantes - F - 44680 CHEMERE (FRANCE) Tél. : + 33 (0) 2 40 21 30 24 - Fax : + 33 (0) 2 40 64 80 11 Société...

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