KUHN GMD55 SELECT Operator's Manual
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KUHN GMD55 SELECT Operator's Manual

KUHN GMD55 SELECT Operator's Manual

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OPERATOR'S MANUAL
KN095AGB F
Disc mower
KN095AGB F
- English - 11-2009

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Summary of Contents for KUHN GMD55 SELECT

  • Page 1 OPERATOR'S MANUAL KN095AGB F Disc mower KN095AGB F - English - 11-2009...

  • Page 3: Dear Owner

    Designated use of the machine The GMD55 SELECT mower must only be used for the purpose for which it was manufactured: mowing on the ground of hay fields, grass silage fields and improved pastures for the purpose of harvesting fodder for feeding livestock.

  • Page 4: Table Of Contents

    Disc mower GMD55 SELECT $Contents Dear Owner ........................1 Contents..........................2 Identification of the machine..................4 Front view............................4 Rear view............................4 Model identification plate ........................5 Optional equipment..........................5 Safety..........................6 Description of symbols used in this document................6 Safety instructions ...........................7 Location and description of safety decals on the machine ............15 Road safety equipment and recommendations................18...
  • Page 5 Disc mower GMD55 SELECT Instructions for work ....................35 Putting the machine into work position ..................35 Adjustments in working position....................37 Machine use............................ 40 Optional equipment ..................... 41 Raised skid shoes .......................... 45 Signalling ............................46 Inner swath shield .......................... 45 Wear plate ............................

  • Page 6: Identification Of The Machine

    Disc mower GMD55 SELECT $Identification of the machine 1. Front view 2. Rear view Identification of the machine...

  • Page 7: Model Identification Plate

    Disc mower GMD55 SELECT 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. GMD55 SEL Type: Serial no.: 4. Optional equipment...

  • Page 8: Safety

    Disc mower GMD55 SELECT $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 Disc mower GMD55 SELECT 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 GMD55 SELECT 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: Hydraulic Circuit

    Disc mower GMD55 SELECT 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 13: Pto Shaft

    Disc mower GMD55 SELECT 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 14: Safety Decals

    Disc mower GMD55 SELECT 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 15 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. Projection of stones and foreign objects For driver safety, always use a tractor equipped with a cab.
  • Page 16 Disc mower GMD55 SELECT Even when the machine is used in accordance with its purpose, objects may be projected. Stones and other foreign objects projected by the moving parts can travel a considerable distance. Keep all persons and animals away from the danger zone.

  • Page 17: Location And Description Of Safety Decals On The Machine

    Disc mower GMD55 SELECT 3. Location and description of safety decals on the machine Location of safety decals Safety...
  • Page 18 Disc mower GMD55 SELECT 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 19 Disc mower GMD55 SELECT Rotating cutting tools (4) 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. Body crushing (5) Stay a safe distance from the machine.

  • Page 20: 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. The device is composed of: - A reflector (1). Always keep to the legal speed limit for driving a tractor- machine assembly on public roads.

  • Page 21: Machine Specifications

    Disc mower GMD55 SELECT $Machine specifications 1. Description and glossary Check chain Three-point hitch coupler Safety breakback Parking stand Work/transport cylinder Compensating spring Belt guard Front guard Cutterbar 10 : Swath shield Machine specifications...

  • Page 22: Technical Specifications

    Disc mower GMD55 SELECT 2. Technical specifications Attachment type 3 point linkage category 1 and 2 Number of discs Working width 2.00 m (6’7’’) Width in working position 3.92 m (12’1’’) Height in working position 1.15 m (3’9’’) Length in working position 2.35 m (7’9’’)

  • Page 23: Putting Into Service

    Disc mower GMD55 SELECT $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 1 or 2.
  • Page 24 Disc mower GMD55 SELECT 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. The front axle load (1) must never, under any circumstances, be less than 20% of the tractor's unladen weight.

  • Page 25: Preparing The Machine

    Disc mower GMD55 SELECT Preparing the machine Linkage adjustment The machine adapts to tractors fitted with a 3-point hitch coupler category 1 or 2. 3 point, Category 1: - Place lower links in position (a): 3 point, Category 2: - Place lower links in position (b):...
  • Page 26 Disc mower GMD55 SELECT 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 27 Disc mower GMD55 SELECT Hydraulic connections Connect the mowing unit lift cylinder to a single acting valve. Check chain Fit check chain See section "Frame height adjustment" to position the check chain. Putting into service...
  • Page 28 Disc mower GMD55 SELECT Primary 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 29 Disc mower GMD55 SELECT Attach PTO shaft guard using chain provided in order to prevent it from rotating. Immediately replace any worn or damaged guard. Adjusting the machine Positioning of lower links - Measure dimension A. - Adjust tractor lower link stabilizers to measure A = 50 mm (2’’).
  • Page 30 Disc mower GMD55 SELECT 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 = 400 mm / 1’4’’ from the ground.
  • Page 31 Disc mower GMD55 SELECT 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 32 Disc mower GMD55 SELECT Uncoupling the machine For tractors not fitted with a hydraulic position control function, unhook check chain. The machine must be uncoupled in working position. From the transport position: - Remove lynch pin (1) and pin (2).
  • Page 33 Disc mower GMD55 SELECT - Activate the transport/work cylinder control valve in the "pivot into work" position. - Lift the machine with the tractor's three point linkage. - Press push-button (1) and lower parking stand (2) until push-button engages in position (3).

  • Page 34: Instructions For Transport

    Disc mower GMD55 SELECT $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 35 Disc mower GMD55 SELECT - Activate the transport/work cylinder to bring the mowing unit in transport position. - Remove R-clip (2). - Remove transport lock (1). - Install transport lock (1). - Secure using R-clip (2). The machine is in transport position.

  • Page 36: Conformity With The Road Regulations

    Disc mower GMD55 SELECT 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 37: Instructions For Work

    Disc mower GMD55 SELECT $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 38 Disc mower GMD55 SELECT - Install lock (1) on frame. - Secure using R-clip (2). - Activate the transport/work cylinder control valve in the "pivot into work" position. - Press lock (1) and lower front guard (2). - The guard locks automatically.

  • Page 39: Adjustments In Working Position

    Disc mower GMD55 SELECT 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 40 Disc mower GMD55 SELECT Swathing system The swathing system comprises: - A swath shield. - A swath stick. The swath stick fitted on the swath shield can be adjusted in 6 positions according to the working conditions: Adjust stick angle according to the crop density and length.
  • Page 41 Disc mower GMD55 SELECT On slopes For mowing on slopes exceeding 10° below horizontal, lengthen cylinder rod. Coupling device (a):Work on flat grounds. Coupling device (b):On slopes (X). To switch from configuration (a) to configuration (b): - Remove bolts (1) and nuts (2).

  • Page 42: Machine Use

    Disc mower GMD55 SELECT 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 43: Optional Equipment

    Disc mower GMD55 SELECT $Optional equipment 1. Reinforced PTO shaft Part no. 4500560 In the following cases, the machine can be fitted with a longer, reinforced PTO shaft with a free wheel - Too short standard PTO shaft. - Tractor fitted with a hydraulic PTO.
  • Page 44 Disc mower GMD55 SELECT - Damaged knives. Very rough conditions can cause knives to crack and become deformed. - Worn knives Knife length C must exceed 80 mm (3.15’’). Knife width B, measured at a distance A of 10 mm (0.4’’) from the disc edge must exceed 20 mm (0.8’’).
  • Page 45 Disc mower GMD55 SELECT Fixing elements Check the fixing elements: - After hitting an obstacle. - When replacing knives. - At the beginning of each season. The fixing bolts should be changed in the following cases: - When there is visible distortion.
  • Page 46 Disc mower GMD55 SELECT Knife replacement Replace knife lock-nuts and bolts when they have been removed 5 times. Replace immediately all worn or distorted knives. Never straighten a bent knife. Always replace both knives per disc. Clean the nut case.

  • Page 47: Raised Skid Shoes

    Disc mower GMD55 SELECT When replacing outer and inner cones, make sure to reinstall caps. 3. Raised skid shoes Kit no. 1016400 The raised skid shoes enable mowing higher, between 60 and 120 mm (2.4’’ - 4.8’’). Replace the end disc skids by the 2 raised skid shoes.

  • Page 48: Signalling

    Disc mower GMD55 SELECT 5. High cone disc Kit no. 1046050 Replace first disk with the high cone disk to reduce the swath width by approximately 300 mm (1’) according to the forage density. 6. Signalling Kit no. 1026100 The machine can be fitted with specific signalling lights to comply with the road regulations.

  • Page 49: Maintenance And Storage

    Disc mower GMD55 SELECT $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 After the first 10 hours of Every 200 hours or at the...

  • Page 50: Lubrication

    Disc mower GMD55 SELECT 2. Lubrication Clean grease nipples before greasing. Lubricate with SHELL multi-purpose grease grade NLGI 2. PTO shaft Primary PTO shaft - Every 8 hours: • universal joints (1). - Every 20 hours: • transmission tube (2).

  • Page 51: Oil Change

    Disc mower GMD55 SELECT 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 2.00 L (0.52 US gal) of SHELL SPIRAX extreme-pressure gear oil with viscosity grade SAE 80W90 and API grade GL5.
  • Page 52 Disc mower GMD55 SELECT 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 0.25 L (0.5 US pints) of SHELL SPIRAX extreme-pressure oil for mechanical transmissions with viscosity grade SAE 80W90 and API grade GL5.

  • Page 53: Maintenance

    Disc mower GMD55 SELECT 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 54 Disc mower GMD55 SELECT Adjusting the tension: - Unscrew the 2 nuts (1). - Tighten screw (2) to tension belts. - Check belt tension. - Tighten the 2 nuts (1). - Torque: 13 daN m (96 lbf ft). Breather plug checking and cleaning From the working position: Remove breather plug (1).
  • Page 55 Disc mower GMD55 SELECT Check Cutterbar oil level Regularly check the cutterbar oil level: From the transport position: • Remove filler plug (1). • The oil must reach the lower edge of the filling hole. • Top up if necessary.
  • Page 56 Disc mower GMD55 SELECT Knifes and their fasteners Immediately replace worn or damaged parts with genuine KUHN parts. Knives Inspect systematically all knives before the machine is operated to: • guarantee the cutting quality. • guarantee safety in use. • Prevent cutterbar damage risks.
  • Page 57 Disc mower GMD55 SELECT Fixing elements Check the fixing elements: - After hitting an obstacle. - When replacing knives. - At the beginning of each season. The fixing bolts should be changed in the following cases: - When there is visible distortion.
  • Page 58 Disc mower GMD55 SELECT Knife replacement Replace knife lock-nuts and bolts when they have been removed 5 times. Replace immediately all worn or distorted knives. Never straighten a bent knife. Always replace both knives per disc. Clean the nut case.
  • Page 59 Disc mower GMD55 SELECT When replacing outer and inner cones, make sure to reinstall caps. Maintenance and storage...

  • Page 60: Storage

    Disc mower GMD55 SELECT 4. Storage At the end of each season - Clean the machine thoroughly. - Drain all gearboxes and cutterbar and refill with new oil (see "Lubrication" chapter). - Touch up any areas of damaged paintwork. - Put the machine under cover in a dry place.

  • Page 61: Trouble Shooting Guide

    Disc mower GMD55 SELECT $Trouble shooting guide Problem Cause Remedy Dull or broken knives. Replace knives. Make sure the arrow on the Knives not installed correctly. knife upper face is pointing in Uneven stubble. the disc's direction of rotation. Too low PTO speed (rotational Increase speed to 540 min frequency).

  • Page 62: Limited Warranty

    Disc mower GMD55 SELECT $Limited warranty Limited warranty...
  • Page 63 Disc mower GMD55 SELECT Limited warranty...

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