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Disc mower

GMD240-280-310

Identification of the machine

KN204AGB H

4. Optional equipment

- Tick box corresponding to the equipment fitted on

your machine:

GMD240-280

GMD280

GMD240-280-310

GMD310



Inner swath disc.



Inner swath shield.



High cone disc kit.



1 3/8’’ - 6 spline pto shaft.



32 x 38 - 8 spline pto shaft.



Raised skid shoes.



Side deflector.



Side deflector with high cone disk.



Longer hitch pins.



Chain stroke limiter.



Lighting and signalling.



Lateral signalling equipment (for France).



Quick hitch connector.



Wear skids.



1000 min

-1

drive kit.

Содержание GMD240

Страница 1: ...KN204AGB H OPERATOR S MANUAL Disc mower GMD240 280 310 KN204AGB H English 08 2014 ...

Страница 2: ......

Страница 3: ... 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 are 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 m...

Страница 4: ...fety instructions 8 Location and description of safety decals on the machine 20 Road safety equipment and recommendations 24 Machine specifications 25 Description and glossary 25 Technical specifications 26 Required equipment 27 Sound levels 30 Putting into service 31 Description of control elements 31 Coupling and uncoupling 32 Instructions for transport 43 Putting the machine into transport posi...

Страница 5: ...igh cone disc kit 57 Inner swath disc 57 Inner swath shield 58 Raised skid shoes 58 Side deflector 59 Side deflector with high cone disk 59 Longer hitch pins 60 Chain stroke limiter 61 Lighting and signalling 62 Lateral signalling equipment for France 62 Quick hitch connector 63 1000 min 1 drive kit 63 Wear skids 63 Maintenance and storage 64 Frequency chart 64 Lubrication 65 Maintenance 71 Storag...

Страница 6: ...Disc mower 4 GMD240 280 310 Identification of the machine KN204AGB H Identification of the machine 1 Front view 2 Rear view ...

Страница 7: ...mower GMD240 280 310 5 KN204AGB H 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 GMD240 GMD280 GMD310 Serial no ...

Страница 8: ...80 GMD280 GMD240 280 310 GMD310 Inner swath disc Inner swath shield High cone disc kit 1 3 8 6 spline pto shaft 32 x 38 8 spline pto shaft Raised skid shoes Side deflector Side deflector with high cone disk Longer hitch pins Chain stroke limiter Lighting and signalling Lateral signalling equipment for France Quick hitch connector Wear skids 1000 min 1 drive kit ...

Страница 9: ... 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 This symbol is used to communicate technical information of particular interest ...

Страница 10: ...ne must only be operated maintained and repaired by competent persons who are familiar with machines specifications and operation and aware of safety regulations for 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 legislation concerning accident prevention work s...

Страница 11: ...mly in place and in good condition Immediately replace any worn or damaged guard 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 ada...

Страница 12: ...at 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 Gross weight and weight per axle Always obey current regulations for driving on roads The drawings are not legally binding their only aim is to illustrate the method to use Prior to driving on public roads check that all cr...

Страница 13: ...ublic roads with empty hoppers and tanks Description Units Description T kg Tractor unladen weight PTAC kg Gross Combined Weight Rating T1 kg Unladen load on tractor front axle T2 kg Empty load on tractor rear axle t kg Axle loads Tractor machine t1 kg Load on front axle Tractor machine t2 kg Load on rear axle Tractor machine t1 max kg Maximum load authorized on the tractor front axle according to...

Страница 14: ...b 1500 kg 3300 lb Add ballast weights until the minimum front axle load is exceeded Repeat checking procedure Stage 3 To measure Total weight t Tractor machine transport position Ballast weights Checking To go to the next stage Check in the tractor s operator s manual that the value measured is below the tractor s Gross Combined Weight Rating To do If t PTAC go to the next stage If the total unit ...

Страница 15: ...hat tyre and rim specifiations are in conformity with the requirements of the tractor manufacturer Example Load on rear axle t2 8500 kg 18740 lb Check in the tractor s operator s manual that the value measured is below the maximum allowed tractor rear axle load Check that tyre and rim specifiations are in conformity with the requirements of the tractor manufacturer Maximum speed Always keep to the...

Страница 16: ...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...

Страница 17: ...ediately A worn guard or an unprotected 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 i...

Страница 18: ... or the adapter to be unguarded The tractor master shield shall overlap the end of the splined shaft and the added adaptor device as outlined in the table When uncoupling the machine rest the PTO shaft on the support specially provided and replace protective shield on the PTO stub of the tractor Read and follow the instructions in the operator s manual provided with the PTO shaft PTO type Diameter...

Страница 19: ...decals Safety warning decals are placed in pictorial form on various parts of the machine They are there to warn you of potential dangers and to tell you how to avoid accidents Always keep the safety decals clean 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...

Страница 20: ...s 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 origi...

Страница 21: ...uctions given in the present manual Immediately replace any worn damaged or missing cutting tool or element To do this use the tool outfit supplied with the machine For your safety only use genuine parts Regularly check the condition of the protection covers Immediatly replace any worn damaged or missing cover Before engaging the PTO rest the cutterbar on the ground Make sure all the guards are in...

Страница 22: ...Disc mower 20 GMD240 280 310 Safety KN204AGB H 3 Location and description of safety decals on the machine Location of safety decals ...

Страница 23: ... 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 Rotating cutting tools 3 Keep away from the mower knives all the time the engine is running the PTO drive engaged and the moving pa...

Страница 24: ...arts have come to a complete stop Manoeuvring area 5 Stay a safe distance from the machine Crushing hazard 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 ...

Страница 25: ... step on the machine Risk of falling or damaging the protection device Projections 8 Stones and other debris projected by the moving parts can travel a long distance The protection covers must always be in position and in good condition Always stay at a safe distance from the machine ...

Страница 26: ... safety not to exceed a speed of 40 km h 25 mph The road safety equipment is mounted in the factory or by your authorized Kuhn dealer according to current safety regulations The device comprises the following component 1 red reflector 1 When optional equipment is used follow specific procedures mentioned in the related section Optional equipment Lighting and signalling Optional equipment Lateral s...

Страница 27: ...0 310 25 KN204AGB H Machine specifications 1 Description and glossary 0 1 Cutterbar 2 Disc 3 Cutter bar guard 4 Release cord 5 Hitch pin 6 Gearbox 7 Lift cylinder 8 Compensating spring 9 Upper coupling yoke 10 Parking stand 6 1 2 3 5 10 7 8 4 9 ...

Страница 28: ...ety release Knife attachment per bolt and nut Coupling device 2 Mechanical safety release Knife attachment per bolt and nut HD discs Coupling device 3 Mechanical safety release Fast fit knives Coupling device 4 Mechanical safety release Hydraulic pivot Knife attachment per bolt and nut Coupling device 5 Mechanical safety release Hydraulic pivot Knife attachment per bolt and nut HD discs Coupling d...

Страница 29: ...ifications Disc mower GMD240 280 310 27 KN204AGB H 3 Required equipment Primary PTO shaft The machines are factory fitted with one of the following PTO shafts 1 3 8 6 spline pto shaft ou 32 x 38 8 spline pto shaft ...

Страница 30: ... 280 310 Machine specifications KN204AGB H Mechanical safety release The machine is factory fitted with the following equipment Mechanical safety release or Mechanical safety release Hydraulic pivot Lighting and signalling ...

Страница 31: ...Machine specifications Disc mower GMD240 280 310 29 KN204AGB H Cutter bar Knife attachment per bolt and nut Standard HD discs or Fast fit knives ...

Страница 32: ... 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 76 dB A Tractor machine 80 3 dB A ...

Страница 33: ...ol elements The machine is fitted with a release cord operated from the tractor cab The machine is supplied with an 18 mm box wrench 1 to carry out certain adjustment and maintenance tasks When the following equipment is fitted Fast fit knives The machine is supplied with a tool for replacing the knives 1 ...

Страница 34: ...point linkage category 2 Description of coupling elements A PTO shaft 1 A release cord 2 1 hydraulic hose controlling the machine transport work position cylinder 3 When the following equipment is fitted Mechanical safety release Hydraulic pivot Lighting and signalling 2 hydraulic hoses to feed the mowing unit pivot cylinder 4 1 2 3 4 ...

Страница 35: ...recautions when driving on public roads Appendix The tractor must be fitted with lower link stabilizers When the following equipment is fitted Mechanical safety release The tractor must be fitted with a single acting hydraulic outlet with float position When the following equipment is fitted Mechanical safety release Hydraulic pivot Lighting and signalling The tractor must be fitted with a double ...

Страница 36: ...into service KN204AGB H Hitch pin parallelism Adjust tractor lift rods so that hitch pins are parallel to the ground Lateral adjustment of the lower links Balance the play on either sides of the lift linkage and lock lower link stabilizers ...

Страница 37: ...sure X 825 mm 2 8 Tighten 4 hitch pin screws 2 Torque 12 3 daN m 91 lbf ft If measure A is comprised between 2 10 m 6 11 and 2 25 m 7 04 Place lower links in position b Adjust machine lower hitch pin position Loosen the 8 screws 3 Centre hitch pin 1 with regards to the mounting plate Tighten 4 hitch pin screws 1 Torque 12 3 daN m 91 lbf ft Position hitch pin 2 at measure X 825 mm 2 8 Tighten 4 hit...

Страница 38: ...rews 3 Position hitch pin 2 at measure G 10 mm 0 4 Tighten 4 hitch pin screws 2 Torque 12 3 daN m 91 lbf ft Position hitch pin 1 at measure X 825 mm 2 8 Tighten 4 hitch pin screws 1 Torque 12 3 daN m 91 lbf ft Positioning of lower links Measure dimension E Adjust tractor lower link stabilizers to measure E 50 mm 2 It is possible to adjust the coupling more precisely by adjusting the lower links si...

Страница 39: ...er holes on the tractor side Place release cord handle in the tractor cab Lift machine using tractor hydraulic lift linkage Fold and lock parking latch 1 using spring 2 Fold parking stand 1 upwards and lock it in place It is recommended to couple the left lower link first When optional equipment is used follow specific procedures mentioned in the related section Optional equipment Chain stroke lim...

Страница 40: ...n Electrical connection When the following equipment is fitted Mechanical safety release Hydraulic pivot Lighting and signalling Connect the hydraulic hoses for the mechanical safety release with hydraulic pivot to the additional double acting valve When optional equipment is used follow specific procedures mentioned in the related section Optional equipment Lighting and signalling ...

Страница 41: ... 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 transmission tubes by the same length Bevel and clean the tubes Grease the inside of the outer tube Never operate the PTO shaft at an angle X exceeding 30 Before using the m...

Страница 42: ... linkage in order to engage lift stop 1 in its housing Place the machine in headland turn position Then Lower mowing unit on the ground Adjust the lift height to respect the functional play A 3 mm 0 1 of the lift stop Note the corresponding lever position in the tractor cab Immediately replace any worn or damaged guard 1 Proceed with adjustment on flat and even ground The distance between the hitc...

Страница 43: ...mounting plate 2 Tractor not fitted with a hydraulic position control function See section Optional equipment Chain stroke limiter When optional equipment is used follow specific procedures mentioned in the related section Optional equipment Chain stroke limiter Make sure no foreign material is located on the bevel gearbox Check that there are no foreign bodies in front of the leg stop 1 1 1 2 1 ...

Страница 44: ... in holder 2 Remove cord from tractor and store it in its holder on the machine Detach the top link from the machine end Release the lower links Lower the tractor three point linkage The machine is uncoupled When the following equipment is fitted Mechanical safety release Hydraulic pivot Lighting and signalling Disconnect and store lighting equipment 7 pin plug in its holder 2 Always park the mach...

Страница 45: ...s away When the following equipment is fitted Mechanical safety release Unlock front guard using 18 mm wrench supplied with the machine Lift up the front guard The guard locks automatically Pull release cord until lift stop 1 is free Lift the machine using the tractor s lift linkage Fully lift tractor lift linkage Activate single acting valve of the transport work positioning cylinder in the trans...

Страница 46: ...er bar pivots wait until the lift stop end 1 exceeds its housing 2 to release the cord Continue activating the single acting valve to raise the mowing unit end at approximately 500 mm 1 8 from the ground Activate double acting valve of pivot cylinder to fully pivot the machine rearwards Activate single acting valve of the transport work positioning cylinder in the transport position direction The ...

Страница 47: ...eflective signalling equipment is clean before going on public roads Before driving the machine on public roads ensure that the machine complies with current highway code regulations Replace worn or damaged reflectors Make sure the release cord cannot be operated inadvertently Make sure that transport lock 1 is fully engaged 1 ...

Страница 48: ...ghten pressure on transport lock Pull on the unlocking cord and maintain to keep the transport lock open 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 When the following equipment is fitted Mechanical safety release Hydraulic pivot Lighting and signalling When switching into work position the...

Страница 49: ...cal safety release Hydraulic pivot Lighting and signalling Place the single acting valve of the mowing unit lift cylinder in floating position to lower the mowing unit until the end of the mowing unit is approx 500 mm 1 8 from the ground Activate double acting valve of pivot cylinder to fully pivot the machine frontwards Place the single acting valve of the mowing unit lift cylinder in floating po...

Страница 50: ...ing work only use the mowing unit lift cylinder to place the machine in headland turn position The machine is properly attached when the following conditions are respected The 2 hitch pins are parallel to the ground The distance between hitch pin axis and the ground must be of 450 mm 1 6 approximately ...

Страница 51: ...cylinder The machine is in headland turn position Adjustment Activate single acting valve of the transport work positioning cylinder in the transport position direction Measure dimension X Dimension X must be 4 mm 0 16 2 mm 0 08 If size X is not correct Place the single acting valve of the mowing unit lift cylinder in floating position to lower the mowing unit Lower mowing unit on the ground Loose...

Страница 52: ...link Modify the top link length to alter the machine tilt angle Check cutting height 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 The maximum cutting height L1 50 mm 1 9 is obtained when the discs are parallel to th...

Страница 53: ...hing system The swathing system comprises the following component 1 outer swath wheel Adjustable Position the swath wheel in order to obtain an angle between 16 A and 32 A Check that there is a minimum clearance J of 15 mm 0 59 between the cone rib and the swath wheel ...

Страница 54: ...modify the mowing unit suspension Reduce measure X to increase the suspension Increase measure X to reduce suspension Tighten counter nut 2 4 Machine use The mowing unit is suspensed by means of compensating spring 1 GMD240 The measure X is factory set at 120 mm 4 7 GMD280 310 The measure X is factory set at 90 mm 3 5 X 1 2 Before mowing and to reduce risks of projections lower the front guard Kee...

Страница 55: ...miter adjustment screw 1 the headland turn valve 2 shuts off the supply to the transport work positioning cylinder The machine is in headland turn position Groundspeed At work the hydraulic valve controlling the transport work positioning cylinder must always be set in floating position in order to allow a good ground adaptation Operate the cutterbar using the pivot into transport work position cy...

Страница 56: ...t to the rear when hitting an obstacle The safety breakback is reset by reversing a 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 In case an obstacle has been struck check that the mowing unit has not been damaged ...

Страница 57: ...nt guard Remove foreign body Check that the mowing unit has not been damaged Check rotating components for damage Lower and lock front guard Respect spring washer layout For normal functioning of the break away latch measure L must never be below 91 mm 3 60 Before carrying out any maintenance or repairs on the machine switch off the tractor engine remove ignition key wait until all moving parts ha...

Страница 58: ...pto shaft GMD240 280 310 Part no 4600411 A specific pto shaft is available as option for tractors equipped with a 1 3 8 6 spline pto stub 2 32 x 38 8 spline pto shaft GMD240 280 310 Part no 4600425 A specific pto shaft is available as option for tractors equipped with a 32 x 38 8 spline pto stub ...

Страница 59: ...1046240 The high cone disc enables reducing the swath width The swath width is 1 80 m 5 10 approximately according to the density of the crop Replace flat disc 2 with the high cone disc 4 Inner swath disc GMD240 Kit no 1036130 GMD280 Kit no 1046190 The swath width is 1 80 m 5 10 approximately according to the density of the crop GMD280 Use this kit in combination with the high cone disc kit ...

Страница 60: ...Raised skid shoes GMD240 280 310 Kit no 1036470 The raised skid shoes enable mowing higher between 35 and 90 mm 1 4 3 5 Replace the end disc skids by the 2 raised skid shoes GMD240 The inner swath shield must always be used in combination with the inner swath disk GMD280 The inner swath shield must be used in combination with the inner swath disk and with the high cone disk The use of raised skid ...

Страница 61: ...eflector on the cutter bar outer skid shoe 8 Side deflector with high cone disk Knife attachment per bolt and nut GMD240 280 310 Kit no 1036290 Fast fit knives GMD240FF 280FF 310FF Kit no 1036480 Large cone discs allow mowing dense or down crops with long stems The side deflector prevents crop from wrapping around the outer large cone disk when mowing in dense or down crops with long stems ...

Страница 62: ...9 Linkage adjustment Measure dimension A If measure A exceeds 2 40 m 7 10 Position lower links Adjust machine lower hitch pin position Loosen the 8 screws 3 Position hitch pin 2 at measure H 10 mm 0 4 Tighten 4 hitch pin screws 2 Torque 12 3 daN m 91 lbf ft Position left longer hitch pin 1 at a distance of X 825 mm 2 8 Tighten 4 hitch pin screws 1 Torque 12 3 daN m 91 lbf ft ...

Страница 63: ...ke Lower the machine until the chain stroke limiter is under tension The distance between hitch pin axis and the ground must be of 450 mm 1 5 The tractor lift linkage is in working position The frame height is correct when The cutterbar is resting on the ground The chain stroke limiter is tight The lift stop has a functional play of approximately A 3 mm 0 1 in its housing The 2 hitch pins are para...

Страница 64: ...d regulations Electrical connection Connect machine 7 pin plug on the tractor 7 pin socket After making the connections check that there is no risk of the cables being caught during operation 12 Lateral signalling equipment for France GMD240 280 310 Kit no 1066140 The machine can be fitted with specific signalling lights to comply with the road regulations 1 in combination with signalling panel ...

Страница 65: ...nables coupling the machine to a tractor fitted with a U Quick Hitch frame connector 14 1000 min 1 drive kit GMD310 Kit no 1066010 Belt and pulley assembly for tractors with a pto speed of 1000 min 1 15 Wear skids GMD240 280 310 Part no 56801700 Wear skids can be welded underneath the disk guard to improve its resistance to wear in difficult working conditions ...

Страница 66: ...on key wait until all moving parts have come to a standstill and apply park brake Maintenance intervals are indicated for normal conditions of use After the first 10 hours of use Every 50 hours Every 200 hours or at the end of the season Lubrication Grease The release sheath The leg pin The 3 point hitch frame vertical pivot point Oil The moving parts and pivot points Oil change The cutterbar The ...

Страница 67: ...before greasing PTO shaft Primary PTO shaft At the start of each season or every 100 hours universal joints 1 transmission tube 2 Guide rings 3 Lubricate with multi purpose grease grade NLGI 2 Place the machine in working position Stop the tractor engine and remove ignition key Before using the machine for the first time Grease the transmission ...

Страница 68: ...equipment is fitted Mechanical safety release Loosen nut 1 to release lock 2 a Remove tie rod 1 Grease the release sheath inside b Reinstall tie rod 1 Tighten nut 1 Make sure lock is engaged 2 Measure dimension L L 95 mm 3 7 See section Instructions for work Machine use Machine safety Basic adjustment 2 1 1 2 ...

Страница 69: ...ety release Hydraulic pivot Lighting and signalling Loosen nut 1 to release lock 2 a Extend cylinder 1 Grease the release sheath inside b Reinstall cylinder 1 Tighten nut 1 Make sure lock is engaged 2 Measure dimension L L 95 mm 3 7 See section Instructions for work Machine use Machine safety Basic adjustment 2 1 1 2 ...

Страница 70: ...Disc mower 68 GMD240 280 310 Maintenance and storage KN204AGB H The leg pin The 3 point hitch frame vertical pivot point ...

Страница 71: ...1 Clean and reinstall filler plug 1 and its washer Replace if necessary Before draining oil operate the machine for a few minutes so that the oil warms up GMD240 280 The cutterbar is lubricated with 2 L 0 53 US gal of extreme pressure gear oil with viscosity grade SAE 80W90 and API grade GL5 GMD310 The cutterbar is lubricated with 2 25 L 0 59 US gal of extreme pressure gear oil with viscosity grad...

Страница 72: ...he oil level must reach the lower edge of the emptying hole 2 Clean and reinstall drain plug 2 and its washer Clean and reinstall filler plug 1 and its washer Before draining oil operate the machine for a few minutes so that the oil warms up The angle gearbox is lubricated with 0 45 L 0 12 US gal of extreme pressure oil for mechanical transmissions with viscosity grade SAE 80W90 and API grade GL5 ...

Страница 73: ...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 Regularly check belt tension and in particular during the first hours of use Never replace belts individually Replace belts in full sets During the initial assembly or when installing a new set of belts give screw 1 2 additional turn...

Страница 74: ...essary Before draining oil operate the machine for a few minutes so that the oil warms up Wait one hour for the oil to accumulate in the lower part of the cutter bar If it is found that the transmission case is very hot to touch by hand there is no cause of alarm provided Lubrication recommendations have been respected Discs can be rotated freely by hand when the machine is hot Before carrying out...

Страница 75: ...lug 1 and its washer Check the oil level The oil level must reach the lower edge of the emptying hole 1 Top up if necessary Clean and reinstall drain plug 1 and its washer Replace if necessary Breather plug checking and cleaning From the working position Remove breather plug 1 and its seal Clean and check breather plug for good functioning 1 Reinstall breather plug 1 and its seal ...

Страница 76: ...conditions can cause knives to crack and become deformed Worn knives Knife length C must exceed 65 mm 2 6 Knife width B measured at a distance A of 10 mm 0 4 from the disc edge must exceed 34 mm 1 34 Elongation of hole due to wear Verify that distance L from edge of hole to edge of knife is not less than 9 mm 0 35 Always replace both knives per disc to avoid creating an out of balance force Immedi...

Страница 77: ...ing of each season The fixing bolts should be changed in the following cases 2 When there is visible distortion When the locking compound is worn or inoperational When the bolt head wear reaches the center line of the bolt When diameter D of the bolt shoulder is less than 11 mm 0 43 GMD240 GMD280 GMD310 See section Maintenance and storage Maintenance Disc replacement ...

Страница 78: ...ine Remove bolt through opening located at the front of the disc guard Check the condition of the fixing elements regularly and also the torque of the knife fixing bolt Torque 12 3 daN m 91 lbf ft 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 Replace immediat...

Страница 79: ...y replace them Torque knife locknut to 12 3 daN m 91 lbf ft Dull knives require more horse power and have a negative effect on the cut quality Knife attachment per bolt and nut Knife for disk rotating to the left Standard Part no K6801410 Knife for disk rotating to the right Standard Part no K6801420 Knife for disk rotating to the left HD discs Part no 56451200 Knife for disk rotating to the right...

Страница 80: ...ir spring washers Remove the disc When remounting Position their largest diameters at right angles to each other Position conical centre of spring washer at the top Tighten screws Torque 12 3 daN m 91 lbf ft Knife attachment per bolt and nut Discs Standard Part no 56812600 HD discs Part no 56810400 Check if there is still a gap of 1 mm 0 04 between the disc lower part and the cutterbar wear plates...

Страница 81: ...ed knives Very rough conditions can cause knives to crack and become deformed Worn knives Knife length C must exceed 65 mm 2 6 Knife width B measured at a distance A of 10 mm 0 4 from the disc edge must exceed 34 mm 1 34 Elongation of hole due to wear Verify that distance L from edge of hole to edge of knife is not less than 9 mm 0 35 Always replace both knives per disc to avoid creating an out of...

Страница 82: ...eplacing knives At the start of each season The fixing bolts should be changed in the following cases 2 When there is visible distortion When the locking compound is worn or inoperational When diameter D of the bolt shoulder is less than 11 mm 0 43 GMD240 GMD280 GMD310 See section Maintenance and storage Maintenance Disc replacement 2 1 3 ...

Страница 83: ...spring plate Width B of a spring plate measured at A 20 mm 0 8 must exceed 60 mm 2 4 Slightly hit all ground residues between the knife and the screw with a mallet to remove them The radial play between a worn bolt and a new knife must not exceed d 10 mm 0 4 Check the condition of the fixing elements regularly and also the torque of the knife fixing bolt Torque 12 3 daN m 91 lbf ft See section Mai...

Страница 84: ...and spring plate 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 Replace immediately all worn or distorted knives Never straighten a bent knife Always replace both knives per disc Slightly hit all ground residues between the knife and the screw with a mallet to...

Страница 85: ...the other cutting edge or replaced On each knife an arrow indicates the disc s direction of rotation Pivot special tool downwards to free spring plate from screw head Insert the new knife on the screw head Fast fit knives Bolt Part no K6801011 Nut Part no 80201262 Fast fit knives Knife for disk rotating to the left Part no K6801410 Knife for disk rotating to the right Part no K6801420 To prevent c...

Страница 86: ...al tool Rotate disk by half a turn Repeat previous tasks Repeat previous tasks on the other disks Press knife upwards and pull it towards yourself before releasing the special tool a b c Checking the full locking and free rotation of the knife on the screw head After replacing the last knife check that the tool has been removed and put away ...

Страница 87: ... spring washers using the box spanner supplied with the machine Remove the disc conical cover Remove the 2 screws 1 and their spring washers Remove the disc 2 When remounting Position their largest diameters at right angles to each other Position conical centre of spring washer at the top Tighten screws Torque 12 3 daN m 91 lbf ft Fast fit knives Discs Part no K6801430 1 2 ...

Страница 88: ... Check torque of attachment bolts 1 of outer and inner cone covers 2 and 3 Torque 6 daN m 44 lbf ft Replace any lost or damaged cover See section Maintenance and storage Maintenance Disc replacement Spring plate Part no K6803410 See section Maintenance and storage Maintenance Disc replacement 1 Screw 1 Part no 80131017 Cover 2 Part no 56803420 3 Part no 56803400 ...

Страница 89: ... sheltered dry place Inspect and replace worn knives and bolts Release belt tension At the start of each season Re read the operators manual Wipe off grease on cylinder rods Inspect and replace worn knives and bolts Check that all nuts and bolts are sufficiently tightened Check belt condition Replace them if necessary Check belt tension Retension if necessary Lubricate moving parts and articulatio...

Страница 90: ...upper face is pointing in the disc s direction of rotation Insufficient disk speed Check belt tension Too low PTO speed rotational frequency Increase speed to 540 min 1 Cutter bar pitch angle too high Reduce angle Soil build up in front of the cutterbar Too much cutterbar down pressure Adjust compensating spring tension Very wet working conditions Adjust main frame height with regards to the groun...

Страница 91: ...ng spring tension Cutter bar pivot bushes are worn or seized Check condition of pivot bushes Grease If necessary Replace if necessary Stubble too long Incorrect cutter bar pitch angle Modify pitch angle using top link Machine too light Adjust compensating spring tension Check frame position Too frequent safety breakback release Insufficient spring washer compression Increase spring washer compress...

Страница 92: ...tained by T kg Tractor unladen weight T1 kg Unladen load on tractor front axle T2 kg Empty load on tractor rear axle t kg Axle loads Tractor machine t1 kg Load on front axle Tractor machine t2 kg Load on rear axle Tractor machine M1 kg Total weight of front tool or front ballast M2 kg Total weight of rear tool or rear ballast a m Distance between the tools centre of gravity or the front ballast an...

Страница 93: ...til the required minimum front load is reached Indicate front axle calculated load value and the one indicated in the tractor operators manual T1 real M1 x a b T1 x b M2 x c d b 4 Calculation of the total weight M real If the rear tool M2 is lighter than the minimum load required at the rear minimum increase tool weight until the required minimum rear load is reached Indicate calculated total load...

Страница 94: ...r s manual Double value of the authorized capacity per tyre 2 tyres Minimum front rear ballasting kg Total weight kg kg Load on front axle kg kg kg Load on rear axle kg kg kg The minimum ballasting must be made by fitting a tool or an additional mass to the tractor The values obtained must be below or equal the authorized values ...

Страница 95: ...chine weight M2 and the position of its centre of gravity d Tractor only T1 Load on front axle Tractor only T2 Load on rear axle Tractor only If the data required to calculate the total weight axle loads and minimum ballasting are not supplied use the following method ...

Страница 96: ...Disc mower 94 GMD240 280 310 Appendix KN204AGB H T Axle loads Tractor only ...

Страница 97: ...ty t Axle loads Tractor machine Hopper empty Calculating the rear tool weight M2 M2 T t Calculating the distance d d b x T1 t1 M2 c 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 ...

Страница 98: ...Disc mower 96 GMD240 280 310 Limited warranty KN204AGB H Limited warranty ...

Страница 99: ...Limited warranty Disc mower GMD240 280 310 97 KN204AGB H ...

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