KUHN GMD33N Operator's Manual
Disc mower
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- Operator's manual (60 pages) ,
- Assembly & operators manual (36 pages)
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Summary of Contents for KUHN GMD33N
- Page 1 OPERATOR'S MANUAL KN091AGB E Disc mower Original instructions - English - 04-2011 KN091AGB E...
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Page 3: Dear Owner
GMD33N $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 GMD33N $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 ............18 Road safety equipment and recommendations................21... - Page 5 Disc mower GMD33N Instructions for work ....................37 Putting the machine into work position ..................37 Adjustments in working position....................40 Machine use............................ 42 Optional equipment ..................... 43 Wear plate ............................43 Hitch frame offset........................... 43 Swath shield ........................... 44 ...
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Page 6: Identification Of The Machine
Disc mower GMD33N $Identification of the machine 1. Front view 2. Rear view Identification of the machine... -
Page 7: Model Identification Plate
Disc mower GMD33N 3. Model identification plate Please write below the type and serial number of the machine. This information is to be given to the Kuhn authorized dealer for any spare parts order or warranty claim. KUHN S.A. 67700 SAVERNE - FRANCE... -
Page 8: Safety
Disc mower GMD33N $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 any parts of this manual, please contact your KUHN dealer. Precautions to be taken before carrying out any operations on the machine... - Page 10 Disc mower GMD33N 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 11 Disc mower GMD33N 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 Disc mower GMD33N Description of symbols Description Units Description Tractor unladen weight PTAC Gross Combined Weight Rating Unladen load on tractor front axle Empty load on tractor rear axle Axle loads (Tractor + machine) Load on front axle (Tractor + machine)
- Page 13 Disc mower GMD33N 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 Disc mower GMD33N Stage 4: To measure: - Load on rear axle (t2): • Tractor + machine (transport position). • Ballast weights. kg kg Checking: - Check in the tractor's operator's manual that the value measured is below the maximum allowed tractor rear axle load.
- Page 15 Disc mower GMD33N PTO shaft Use only PTO shafts supplied with the machine or recommended by the machine manufacturer. The protective shield of the tractor PTO stub, the PTO shaft guards and the protective shield of the machine input shaft must always be in place and in good condition.
- Page 16 Disc mower GMD33N 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 17 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 18 Disc mower GMD33N 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 19 Disc mower GMD33N 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.
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Page 20: Location And Description Of Safety Decals On The Machine
Disc mower GMD33N 3. Location and description of safety decals on the machine Location of safety decals 599011001 59900600 Safety... - Page 21 Disc mower GMD33N 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...
- Page 22 Disc mower GMD33N Body crushing (5) Stay a safe distance from the machine. Crushing hazard. 59900600 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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Page 23: Road Safety Equipment And Recommendations
GMD33N 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: • 1 red reflector (1). The front safety device comprises: •... -
Page 24: Machine Specifications
Disc mower GMD33N $Machine specifications 1. Description and glossary Check chain Headstock Safety breakback Gearbox Belt guard Safety cover Cutterbar Rear guard Inner guard 10 : Left pivoting lower link 11 : Suspension spring Machine specifications... -
Page 25: Technical Specifications
Disc mower GMD33N 2. Technical specifications Attachment type 3 point linkage category 0 - 1N and 1 Number of discs Working width 1.20 m (4’) Width in working position 2.84 m (9’3’’) Height in working position 0.84 m (2’9’’) Length in working position 1.24 m (4’) -
Page 26: Putting Into Service
Disc mower GMD33N $Putting into service 1. Description of control elements The machine is supplied with an 16 mm box wrench (1) to carry out certain adjustment and maintenance tasks. 2. Coupling and uncoupling The machine adapts to tractors fitted with a 3-point hitch coupler category 0 - 1N or 1. - Page 27 Disc mower GMD33N Preparing the tractor Check that the tractor's authorized gross weight as well as its lift capacity and maximum weight per axle are not exceeded. See section: - Safety / Safety instructions / Precautions when driving on public roads.
- Page 28 Disc mower GMD33N Preparing the machine Linkage adjustment The machine adapts to tractors fitted with a 3-point hitch coupler category 0 - 1N or 1. 3 point, Category 0: - Place lower and upper links in position (a). 3 point, Category 1N: - Place lower and upper links in position (b).
- Page 29 Disc mower GMD33N Coupling the machine - Lower the tractor three-point linkage. - Attach lower links to the hitch pins on either sides of the machine (a). - Secure each hitch pin with lynch pin (b). - Attach top link: •...
- Page 30 Disc mower GMD33N 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. 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 31 Disc mower GMD33N - On machine side, attach guard chain to the headstock hole (1). Immediately replace any worn or damaged guard. Adjusting the machine Positioning of lower links - Measure dimension E. - Adjust tractor lower link stabilizers to measure E = 50 mm (2").
- Page 32 Disc mower GMD33N Frame height and check chains. - Lower the tractor lift linkage so that hitch pins are at a distance H = 380 mm (1’2’’) from the ground. - Insert hook (1) in check chain link corresponding to the required frame height and lock using roll pin (2).
- Page 33 Disc mower GMD33N Safety breakback On hitting an obstacle, the safety breakback causes the cutterbar to pivot rearwards. 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.
- Page 34 Disc mower GMD33N Ground adaptation The lifting device provides good ground adaptation on irregular grounds. From the working position: - Make sure that there is a distance equal to approximately L = 25 mm (1’’) between the lifting device and the lower links.
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Page 35: Instructions For Transport
Disc mower GMD33N $Instructions for transport Before placing the machine into transport 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 transport... - Page 36 Disc mower GMD33N - Fold up safety cover over guard frame. - Unlock rear guard using 16mm box wrench supplied with the machine (a). - Fold rear guard onto front guard (b). - Place box wrench back in its holder.
- Page 37 Disc mower GMD33N - Pivot cutterbar rearward behind the main frame. - Lock cutterbar using lever (1). - The transport position is obtained by raising the tractor's three-point linkage The machine is in transport position. Never engage the tractor PTO drive when the machine is in transport position.
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Page 38: Conformity With The Road Regulations
Disc mower GMD33N 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 retroreflective signalling equipment is clean before going on public roads. -
Page 39: Instructions For Work
Disc mower GMD33N $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 40 Disc mower GMD33N - Lock cutterbar using lever (1). - Open strap (1). - Unfold rear guard until it locks in place. Instructions for work...
- Page 41 Disc mower GMD33N - Unfold safety cover around the guard frame. - Unlock left adaptation device: • Remove R-clip. • Remove lock pin (2). • Insert lock pin in one of the free holes on the top link. • Secure using R-clip.
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Page 42: Adjustments In Working Position
Disc mower GMD33N 2. Adjustments in working position Cutting height The desired cutting height is obtained directly by adjusting the top link length. The height can be adjusted between 30 and 80 mm (1.1’’ - 3.1’’) depending on the tractors. - Page 43 Disc mower GMD33N Hitch frame offset A "hitch frame offset" equipment can be ordered for tractors with a wide wheel track. Positioning of lower links If the "Hitch frame offset" equipment is fitted on the machine: - Balance the play on either sides of the lift linkage and lock lower link stabilizers.
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Page 44: Machine Use
Disc mower GMD33N 3. Machine use Before mowing and to reduce risks of projections: - Unfold rear guard until it locks in place. - Unfold safety cover around the guard frame. - Keep all persons and animals away from the machine danger zone. -
Page 45: Optional Equipment
Disc mower GMD33N $Optional equipment 1. Wear plate Wear plates can be welded underneath the disc guard to improve its resistance to wear in difficult working conditions. 2. Hitch frame offset A "hitch frame offset" equipment can be ordered for tractors with a wide wheel track. -
Page 46: Swath Shield
Disc mower GMD33N 3. Swath shield The outer swath shield enables improving the swath quality depending on the crop density. The swath shield can be adjusted in 3 different positions. Adjustment - Loosen screw (1). - Remove screw (2). - Position swath shield opposite hole that corresponds to the required adjustment. -
Page 47: Maintenance And Storage
Disc mower GMD33N $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 48: Lubrication
Disc mower GMD33N 2. Lubrication - Clean grease nipples before greasing. Lubricate with multi-purpose grease grade NLGI 2. PTO shaft Primary PTO shaft - Every 8 hours: • Universal joints (1). - Every 20 hours: • Transmission tube (2). - Page 49 Disc mower GMD33N Oil change: The cutterbar Before draining oil, operate the machine for a few minutes so that the oil warms up. The cutterbar is lubricated with 1.30 L (0.34 US gal) of extreme-pressure gear oil with viscosity grade SAE 80W90 and API grade GL5.
- Page 50 Disc mower GMD33N Gearbox Before draining oil, operate the machine for a few minutes so that the oil warms up. The angle gearbox is lubricated with 0.20 L (0.42 US pints) of extreme-pressure oil for mechanical transmissions with viscosity grade SAE 80W90 and API grade GL5.
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Page 51: Maintenance
Disc mower GMD33N 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. Belt tension Regularly check belt tension and in particular during the first hours of use. - Page 52 Disc mower GMD33N Adjusting the tension: - Unscrew the 4 nuts (2). - Tighten screw (1) to tension belts. - Check belt tension. - Tighten the 4 nuts (2). • Torque: 13 daN m (96 lbf ft). Breather plug checking and cleaning The draining/filling plug also serves as breather plug.
- Page 53 Disc mower GMD33N 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 its washer. • Through filling hole, check that oil height (h) is comprised between 7 and 8 mm (0.27’’...
- Page 54 Disc mower GMD33N 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: • Ensure the cutting quality. • Ensure safety in use.
- Page 55 Disc mower GMD33N Securing elements - Check the securing 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.
- Page 56 Disc replacement Inner disc: The replacement of the inner disk must be carried out by your Kuhn authorized dealer. Intermediate discs: - Place a wooden wedge (2) between two discs to stop them from moving. - Remove nut (1).
- Page 57 Disc mower GMD33N When remounting: - Position conical centre of dust seal (3) at the bottom. - Position their largest diameters at right angles to each other. - Position conical centre of spring washer at the top. - Place a wooden wedge (2) between two discs to stop them from moving.
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Page 58: Storage
Disc mower GMD33N When replacing the outer cone, make sure to reinstall the cap. 4. Storage At the end of each season - Clean the machine thoroughly. - Drain gearbox and cutterbar and refill with new oil: See section ’’Lubrication’’. -
Page 59: Troubleshooting Guide
Disc mower GMD33N $Troubleshooting guide Problem Cause Remedy Adjust cutterbar angle: See Machine tilted to the front or section ’’Adjustments in rear (excessive pitch angle). working position’’. Dull or broken knives. Replace knives. Uneven stubble. Make sure the arrow on the Knives not installed correctly. -
Page 60: Appendix
Disc mower GMD33N $Appendix 1. Calculating the load on an axle When coupling a tool to the front and/or 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 61 Disc mower GMD33N 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 62 Disc mower GMD33N 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 63 Disc mower GMD33N 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 64 Disc mower GMD33N - T: Axle loads. • Tractor only. T = _____kg Appendix...
- Page 65 Disc mower GMD33N 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.
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Page 66: 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 67 - 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 68 $Specimen of the "Declaration of conformity" EC Declaration of conformity (European directive 2006/42/CE) The manufacturer: Manufacturer name and address declares that the product described hereafter: Brand Brand Machine Machine Type / Model : Type / Model Serial no. Serial no. - conforms to the requirements of the European directive 2006/42/CE.
- Page 72 KUHN S.A. - B.P. 50060 - F - 67706 SAVERNE CEDEX (FRANCE) KUHN-AUDUREAU S.A. - B.P. 19 - F - 85260 LA COPECHAGNIERE (FRANCE) KUHN-BLANCHARD SAS - 24, route de Nantes - F - 44680 CHEMERE (FRANCE) KUHN-HUARD S.A. - B.P. 49 - F - 44142 CHATEAUBRIANT CEDEX (FRANCE) KUHN-GELDROP B.V.
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