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11. - Troubleshooting guide

GMD4410

103

KN045MGB G

Disc mower

11. Troubleshooting guide



Problem



Cause



Remedy

Uneven stubble.

Dull or broken knives.

Replace knives.

Knives not installed
correctly.

Make sure the arrow on
the knife upper face is
pointing in the disc's
direction of rotation.

Too low PTO speed
(rotational frequency).

Increase speed to
1000 min

-1

Poor quality of cut in difficult

conditions. (Dense and
lodged crop, Dry and hard
soil)

Insufficient ground

pressure.

Reduce pressure of hydro-

pneumatic accumulators of
up to 10 bar below the
recommended minimum
pressure

Adjust main frame height with

regards to the ground:

- Lower the tractor lift

linkage so that hitch pins are
at a distance H = 550 mm
(1’7.7’’) from the ground.

Knives with vertical

deflection.

Replace knives.

Reduce the pitch angle.

Soil build up in front of the
cutterbar.

Too much cutterbar down
pressure.

Increase accumulator
pressure.

Very wet working
conditions.

Adjust main frame height
with regards to the ground.

Fit raised skid shoes.

Содержание GMD4410

Страница 1: ...Original instructions KN045MGB G Read carefully before starting the machine OPERATOR S MANUAL Disc mower M0001 M9999 GMD4410 KN045MGB G English 03 2016 KC072ARO_B...

Страница 2: ......

Страница 3: ...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 replac...

Страница 4: ...tions when driving 11 4 2 6 Precautions when driving on public roads 12 4 2 7 Maximum speed 16 4 2 8 Precautions when coupling 16 4 2 9 Hydraulic circuit 17 4 2 10 PTO shaft 18 4 2 11 Precautions duri...

Страница 5: ...ermediate PTO shaft 44 6 2 9 Adjusting the machine 46 6 2 10 Uncoupling the machine 49 7 Instructions for transport 50 7 1 Putting the machine into transport position 50 7 2 Conformity with the road r...

Страница 6: ...ulator 76 10 3 2 The side gearbox drive system 79 10 3 3 Transport stop 79 10 3 4 Work transport cylinder 80 10 3 5 Mowing unit locking cylinder 81 10 3 6 Inspection of knives and securing elements 82...

Страница 7: ...3 Identification of the machine GMD4410 5 KN045MGB G Disc mower 3 Identification of the machine 3 1 Front view 3 2 Rear view...

Страница 8: ...rite 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 TYPE MASSE kg KUHN S A 67700 SAVERNE FRAN...

Страница 9: ...MGB G Disc mower 3 4 Optional equipment Tick box corresponding to the equipment fitted on your machine Side deflector kit Raised skid shoes Chain stroke limiter Fast locking 1 3 8 6 spline yoke Latera...

Страница 10: ...ndicates 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 c...

Страница 11: ...d accessories as recommended by the manufacturer The manufacturer is not held liable for any damage resulting from machine applications other than those specified by the manufacturer Any use other tha...

Страница 12: ...ear loose clothing which could become caught up in moving parts Wear the appropriate protective clothing for the work in hand gloves shoes goggles helmet ear defenders etc Ensure that all operating co...

Страница 13: ...r exercises caution in every given situation Groundspeed must be adapted to ground conditions as well as to roads and paths Always avoid abrupt changes of direction Be particularly cautious when turni...

Страница 14: ...r special transportation of oversize equipment Transport position Before transporting the machine on public roads place the machine into its transport position according to the instructions in this ma...

Страница 15: ...the tractor unladen weight 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...

Страница 16: ...n 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 Example T 7500 kg 16535 lb The front axle load must be of minimu...

Страница 17: ...250 lb PTAC 13000 kg t PTAC Go to the next stage kg kg t _____kg To measure Load on rear axle t2 Tractor machine transport position Ballast weights Checking Check in the tractor s operator s manual th...

Страница 18: ...g 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...

Страница 19: ...raulic 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 with the specificatio...

Страница 20: ...mediately A worn guard or an unprotected PTO shaft can cause a serious or even a lethal accident Before attaching or removing a PTO shaft or before doing any work on the machine disengage the PTO driv...

Страница 21: ...stub of the tractor Read and follow the instructions in the operator s manual provided with the PTO shaft Do not install any adapter device that results in a portion of the tractor PTO stub the rotati...

Страница 22: ...ty 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 safe...

Страница 23: ...hazard Wait for the hydro pneumatic accumulator to fully cool down prior to handling it Any work repair maintenance on hydraulic or pneumatic connections on the hydro pneumatic accumulator must be ma...

Страница 24: ...the electric circuit or before any electric welding is carried out on the attached machine disconnect the machine from the tractor electrical circuit Also disconnect alternator and battery terminals R...

Страница 25: ...the cutting height to avoid contact with stones or rocks Never start the machine when there are people nearby Even when the machine is used in accordance with its purpose objects may be projected Ston...

Страница 26: ...n damaged or missing cover Before engaging the PTO rest the cutterbar on the ground Make sure all the guards are in place Keep all persons and animals away from the danger zone Stay a safe distance fr...

Страница 27: ...4 Safety GMD4410 25 KN045MGB G Disc mower 4 3 Location and description of safety decals on the machine 4 3 1 Location of safety decals 59900300 59900600 59900600 599011001 1 2 4 6 5 3 7 8 9 8 5...

Страница 28: ...comply with all instructions 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 movi...

Страница 29: ...te in an area where there is a crushing risk before all moving parts have come to a complete stop 59900300 Stay a safe distance from the machine Crushing hazard 59900600 Keep away from the mower knive...

Страница 30: ...ia set by standards and by the manufacturer For your own safety and for correct machine operation only use original manufacturer parts 599011001 Do not step on the machine Risk of falling or damaging...

Страница 31: ...factory or by your authorized Kuhn dealer according to current safety regulations The rear safety device comprises The side device comprises Always keep to the legal speed limit for driving a tractor...

Страница 32: ...0 30 4 Safety KN045MGB G Disc mower 4 4 1 Instructions specific to France To conform with the current road regulations the machine must be fitted with specific signalling panels when driving on public...

Страница 33: ...on cylinder 6 Central gearbox 7 Work transport cylinder 8 Lift cylinder 9 Suspension circuit accumulator 10 Transport lock 11 Suspension circuit pressure gauge 12 Front guard 13 Suspension circuit val...

Страница 34: ...m 17 5 Height in working position 1 40 m 4 7 Length in working position 1 77 m 5 10 Width in transport position 1 60 m 5 3 Height in transport position 1 90 m 6 2 Length in transport position 5 90 m 1...

Страница 35: ...5 Machine specifications GMD4410 33 KN045MGB G Disc mower 5 3 Required equipment 5 3 1 Cutter bar or Knife attachment per bolt and nut Standard Fast fit knives...

Страница 36: ...e 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...

Страница 37: ...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 1 When the fo...

Страница 38: ...ft linkage A 7 pin electric plug for the electrical signalling equipment 6 2 2 Preparing the tractor The tractor PTO stub must rotate at a speed of 1000 min 1 The tractor must be equipped with 1 doubl...

Страница 39: ...30 m 6 11 7 7 Measure dimension A A Place lower links in position a Adjust machine lower hitch pin position Unscrew the 8 bolts 3 Centre hitch pin 1 with regards to the mounting plate Tighten 4 hitch...

Страница 40: ...rew the 8 bolts 3 Position hitch pin 2 at measure A 10 mm 0 4 Tighten 4 hitch pin screws 2 Torque 21 daN m 155 lbf ft Position hitch pin 1 at measure B 825 mm 2 8 Tighten 4 hitch pin screws 1 Torque 2...

Страница 41: ...Chain stroke limiter 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 w...

Страница 42: ...ting into service KN045MGB G Disc mower Lift the machine using the tractor lift linkage until the parking stand no longer rests on the ground Remove locking pin 2 Fold parking stand 1 upwards and lock...

Страница 43: ...6 Electrical 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 1 Connect the mowi...

Страница 44: ...he length of the PTO shaft When the PTO shaft is in its maximum overlap position retracted tubes should not butt against the yokes As a safety measure a clearance L of at least 25 mm 1 must be maintai...

Страница 45: ...ate the PTO shaft at an angle X exceeding 30 X X To avoid serious accidents the PTO drive shaft guards must be properly in place and fixed with the chains provided On machine side attach guard chain t...

Страница 46: ...il all moving parts have come to a standstill and apply park brake Before the machine is put into service and after a long period of non use check the function of slip clutch to ensure it is not locke...

Страница 47: ...KN045MGB G Disc mower Couple the intermediate PTO shaft on the central gearbox side Tighten nuts to release the friction discs Let the friction discs slip for a few seconds Thread nuts away until they...

Страница 48: ...is ready to function 6 2 9 Adjusting the machine Positioning of lower links On machine side attach drive shaft guard chain 1 to the input shaft guard 1 Immediately replace any worn or damaged guard M...

Страница 49: ...t between the two hitch pins Place the machine in transport position Pull on cord to release latch Activate the transport work cylinder to bring the mowing unit in transport position Rest cutterbar on...

Страница 50: ...nkage so that hitch pins are at a distance H 600 mm 2 from the ground Note the corresponding lever position in the tractor cab Refer to the decal fitted on the machine to check the distance between th...

Страница 51: ...ransport position Release and lower parking stand 1 Secure parking stand using lock 2 Lower the tractor three point linkage to rest the machine on the ground 1 2 Uncouple and place PTO shaft in suppor...

Страница 52: ...way Use mowing unit lift cylinder to lift the mowing unit Lift the machine with the tractor s three point linkage Pull the release cord until transport lock is released Activate the transport work cyl...

Страница 53: ...ighting equipment functions before going on public roads Before driving onto a main road ensure that upper edge of signalling panel is not more than 1 5 m 4 11 from the ground Before driving the machi...

Страница 54: ...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 Pull the release cord until transport lock is released...

Страница 55: ...ition The machine is in working position Lower the mowing unit onto the ground using the mowing unit lift cylinder Shift the mowing unit lift cylinder directional control valve in float position Durin...

Страница 56: ...t position Lower the machine on the ground to remove weight from the top link Modify the top link length to alter the machine tilt angle Check cutting height If the tractor is fitted with a hydraulic...

Страница 57: ...unction In case an obstacle is struck The suspension pressure increases in order to decrease the ground pressure The mowing unit can pivot up to 25 to the rear Once the obstacle is passed the mowing u...

Страница 58: ...Position a Activate the transport work cylinder control valve in the pivot into transport position Check the pressure decrease indication on the gauge The following adjustments do not cause the machin...

Страница 59: ...KN045MGB G Disc mower When the required pressure is reached close the valve Position b Position a Circuit open Adjustment Position b Circuit closed Work and transport a b The valve must only be in ope...

Страница 60: ...hydro pneumatic accumulator In modifying the accumulator s pressure the mowing unit s cushioning varies Place the machine in transport position Check the pressure given on the gauge NORMAL operating p...

Страница 61: ...the pressure decrease indication on the gauge When the required pressure is reached close the valve Position b The following adjustments do not cause the machine to move Open the hydraulic valve using...

Страница 62: ...Disc mower 8 2 4 Swathing system The swathing system comprises 2 swath wheel Adjustable The swath width is 3 m 9 10 approximately Check that there is still a play J equalling minimum 20 mm 0 8 between...

Страница 63: ...nd slowly increase the speed up to 1000 min 1 Only use the mowing unit lift cylinders to lift the machine from working position into headland turn position Before mowing and to reduce risks of project...

Страница 64: ...Disc mower 8 3 1 Front guard release 8 3 2 Drive speed Release and lift side guard using 18 mm box spanner supplied with the machine a Position wrench b Unlock hook c Lift up the front guard a b c Ada...

Страница 65: ...are recommended for mowing dense or down crops with long stems Fit the 2 side deflectors on the outer sides of the cutter bar holders Equipment delivered depending on country The raised skid shoes en...

Страница 66: ...tension The distance between hitch pin axis and the ground must be of 600 mm 2 The tractor lift linkage is in working position The frame height is correct when The cutterbar is resting on the ground...

Страница 67: ...Fast locking 1 3 8 6 spline yoke Kit no 4603256 A specific yoke is available as option for tractors equipped with a 1 3 8 21 spline pto stub Kit no 4603257 A specific yoke is available as option for...

Страница 68: ...quipment for France Kit no 1016420 9 6 Swath divider Kit no 1066270 The machine can be fitted with specific signalling lights to comply with the road regulations This equipment allows creating a separ...

Страница 69: ...other Tighten the 2 nuts 1 Lengthways adjustment Unscrew the 2 nuts 1 Check that there is still a play J equalling minimum 20 mm 0 8 between the shell the cone rib and the swath wheel Tighten the 2 n...

Страница 70: ...turn off the engine remove ignition key and wait until all moving parts have come to a complete stop and apply park brake Maintenance intervals are indicated for normal conditions of use Every 30 hour...

Страница 71: ...ance and storage Hydro pneumatic accumulator Every 30 hours Every 50 hours Every 200 hours or at the end of the season Every 10 years Except for lubricating the pto shaft the machine must always be pl...

Страница 72: ...tractor engine and remove ignition key The U joint grease zerks of the intermediate PTO shaft are accessible through openings 2 on the guard cones 1 If necessary rotate a disc to access the grease ze...

Страница 73: ...rage GMD4410 71 KN045MGB G Disc mower 10 2 2 Oil The moving parts and pivot points 10 2 3 Grease The mowing unit lift cylinder ball joints 1 1 The mowing unit compensation cylinder ball joint 1 1 The...

Страница 74: ...base oil with viscosity grade SAE 80W90 and API grade GL5 or a synthetic base oil type PAO Poly Alpha Olefins with a viscosity grade equivalent to SAE 80W90 Remove dipstick plug 1 Place a container of...

Страница 75: ...de GL5 or a synthetic base oil type PAO Poly Alpha Olefins with a viscosity grade equivalent to SAE 80W90 Remove filler plug 1 and its seal Place a container of sufficient capacity under drain plug Re...

Страница 76: ...drain and refill cutterbar respecting recommended oil quantity and quality Following all service operations or in case of an oil leak empty and refill cutterbar Before draining oil operate the machin...

Страница 77: ...Raise cutterbar on opposite side of drain plug Remove drain plug 1 and its washer Allow oil to drain completely Wait for dripping to stop Clean and reinstall drain plug 1 and its washer Replace if ne...

Страница 78: ...prising a hydro pneumatic accumulator depressurize the circuit It is strictly forbidden to weld grind or drill onto a hydro pneumatic accumulator Regularly check the tightness of the accumulator fixin...

Страница 79: ...tractor engine Open valve position a a b Operate transport work position cylinder in transport position direction Release pressure until the gauge needle reads 0 When the pressure reaches 0 bar 0 psi...

Страница 80: ...t Transport suspension pressure adjustment Stop the tractor engine Open valve position a a b Activate the headland turn cylinder control valve in the lower into work position Release pressure until th...

Страница 81: ...ice 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 A 577 mm 1 10 4 mm 0 15 A Place the machi...

Страница 82: ...urns Tighten counter nut 2 Check play between transport lock and cylinder barrel 2 1 3 Replace damper 3 when worn or when it no longer has a dampening effect The flexible stop 1 must protrude of minim...

Страница 83: ...hamber that allows immediate mowing unit reaction with regards to irregular ground contours Check the pressure Place the machine in working position or parking position Remove cap 1 Connect pressure g...

Страница 84: ...y all knives before the machine is operated to ensure the cutting quality ensure safety in use Prevent cutterbar damage risks Replace knives in the following cases Damaged knives Very rough conditions...

Страница 85: ...10 Maintenance and storage GMD4410 83 KN045MGB G Disc mower Always replace both knives per disc to avoid creating an out of balance force...

Страница 86: ...stortion 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 15 mm 0 6 After having been re...

Страница 87: ...bent knife Always replace both knives per disc Clean the nut case Place a wooden wedge between two discs to stop them from rotating Loosen nut using box spanner supplied with the machine Remove bolt...

Страница 88: ...te discs The replacement of the inner disk must be carried out by your Kuhn authorized dealer Place a wooden wedge 1 between two discs to stop them from moving Remove the 4 bolts 2 and their conical w...

Страница 89: ...tion of rotation according to fitting of knives Make sure the arrow on the knife upper face is pointing in the disc s direction of rotation Reinstall disc cover 1 Respect an X of 90 between neighborin...

Страница 90: ...cs to stop them from moving Torque bolts to 2 Torque 12 daN m 89 lbf ft Remove locking piece Check that there is a minimum play of 1 mm 0 04 between the knife attachment screws and the cutter bar skid...

Страница 91: ...hine is operated to ensure the cutting quality ensure safety in use Prevent cutterbar damage risks Replace knives in the following cases Damaged knives Very rough conditions can cause knives to crack...

Страница 92: ...0 10 Maintenance and storage KN045MGB G Disc mower The hole L for the securing bolt must not become oval by more than 22 mm 0 87 L Always replace both knives per disc to avoid creating an out of balan...

Страница 93: ...he 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 bo...

Страница 94: ...ches a 5 mm 0 2 d a Check the condition of the securing elements regularly and also the torque of the knife fixing bolt Torque 12 daN m 89 lbf ft Replace spring plate in the following cases 3 When the...

Страница 95: ...airs 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...

Страница 96: ...indicates the disc s direction of rotation Pivot special tool downwards to free spring plate from screw head Make sure that the securing nut and bolt are in good condition and if necessary replace th...

Страница 97: ...pecial tool downwards to free spring plate from screw head Insert the new knife on the screw head Press knife upwards and pull it towards yourself before releasing the special tool a b c Checking the...

Страница 98: ...er 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 After replacing the las...

Страница 99: ...te discs The replacement of the inner disk must be carried out by your Kuhn authorized dealer Place a wooden wedge 1 between two discs to stop them from moving Remove the 4 bolts 2 and their conical w...

Страница 100: ...2 Respect disc direction of rotation according to fitting of knives Make sure the arrow on the knife upper face is pointing in the disc s direction of rotation Reinstall disc cover 1 Respect an X of...

Страница 101: ...torage GMD4410 99 KN045MGB G Disc mower Position conical centre of washers at the top Place a wooden wedge 1 between two discs to stop them from moving Torque bolts to 2 Torque 12 daN m 89 lbf ft Remo...

Страница 102: ...ance and storage KN045MGB G Disc mower Check that there is a minimum play of X 1 mm 0 04 between the spring plate and the cutter bar skids Otherwise position spacer s two maximum between the housing a...

Страница 103: ...c replacement Refit the disc See section Disc replacement 10 3 7 Outer and inner cones The replacement of the inner disc spring plate must be carried out by a Kuhn authorized dealer Remove spring plat...

Страница 104: ...and replace worn knives and bolts See section Inspection of knives and securing elements Depressurize the hydraulic circuit 10 4 2 At the start of each season Re read the operators manual Pressurize t...

Страница 105: ...se and lodged crop Dry and hard soil Insufficient ground pressure Reduce pressure of hydro pneumatic accumulators of up to 10 bar below the recommended minimum pressure Adjust main frame height with r...

Страница 106: ...lift linkage setting See machine attachment Too long levelling rod adjustment on tractor 3 point lift Shorten levelling rods on tractor 3 point lift Badly shaped windrows Too low PTO speed rotational...

Страница 107: ...authorized payload must not be exceeded When coupling tools to the front and or rear 3 point lift linkages the maximum load on tractor s tires must not be exceeded The load on the tractor front axle...

Страница 108: ...ty or the front ballast and the front axle centre b m Distance between the tractor axles c m Distance between the rear axle center and the center of the lower link ball joints d m Distance between the...

Страница 109: ...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 mini...

Страница 110: ...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...

Страница 111: ...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 T2 T1 Load on...

Страница 112: ...GMD4410 110 12 Appendix KN045MGB G Disc mower T Axle loads Tractor only T _____kg...

Страница 113: ...actor 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 ta...

Страница 114: ...GMD4410 112 12 Appendix KN045MGB G Disc mower Calculating the rear tool weight M2 M2 t T Calculating the distance d d b x T1 t1 M2 c t Axle loads Tractor machine Hopper empty t _____kg...

Страница 115: ...ufacturer concerned in as much as the latter justifies such a claim This Limited Warranty does not apply to failure through normal wear and tear to damage resulting from negligence or from lack of ins...

Страница 116: ...quantity of lubricants used must always be in accordance with Company specifications The safety measures mentioned in the Operator s manual and on the machine itself have been followed and all the gua...

Страница 117: ...forms to the requirements of following European harmonized standards conforms to the requirements of the European directive 2006 42 CE Brand Brand Machine Machine Type Model Type Model Serial no Seria...

Страница 118: ......

Страница 119: ......

Страница 120: ...HARD 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 P O Box 9 5660 AA GELDROP THE NETHERLANDS KUHN NORTH AMERICA INC P O Box 16...

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