KUHN GMD24 Original Instructions Manual Download Page 64

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GMD24-GMD28 / HD

10. - Maintenance and storage

KN226BGB_A

Disc mower

10.2.2 Draining



The cutterbar

- Before draining oil, operate the machine for a

few minutes so that the oil warms up.

Oil and lubricants specifications

GMD24

GMD28

Oil volume

2.00 L (0.53 US gal)

Type of oil

Gear oil (mineral oil)

Viscosity

SAE 80W90

Specification

API - GL5 (extreme pressure)

When changing the oil, it is recommended to use
either an identical mineral oil or a synthetic oil of
type PAO (Poly-Alpha-Olefine) with viscosity
grade SAE 75W90.

Summary of Contents for GMD24

Page 1: ...Original instructions KN226BGB_A Read carefully before starting the machine Operator s manual Disc mower A1025 70B00001 A1025 70B99999 GMD24 GMD28 HD KN226BGB_A English 07 2019 KN226BGB_A...

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Page 3: ...IS MANUAL AVAILABLE FOR REFERENCE Pass it 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 care...

Page 4: ...ons when driving 14 4 2 7 Hydraulic circuit 15 4 2 8 Precautions when driving on public roads 15 4 2 9 Maximum speed 19 4 2 10 PTO shaft 19 4 2 11 Waste disposal 21 4 2 12 Remote controlled components...

Page 5: ...6 2 5 Hydraulic connections 39 6 2 6 Electrical connection 39 6 2 7 Check chain 39 6 2 8 Primary PTO shaft 40 6 2 9 Adjusting the machine 41 6 2 10 Uncoupling the machine 45 7 Instructions for transp...

Page 6: ...intenance and storage 61 10 1 Frequency chart 61 10 2 Lubrication 62 10 2 1 PTO shafts 63 10 2 2 Draining 64 10 3 Maintenance 67 10 3 1 Belt tension 67 10 3 2 Breather plug checking and cleaning 69 10...

Page 7: ...3 Identification of the machine GMD24 GMD28 HD 7 KN226BGB_A Disc mower 3 Identification of the machine 3 1 Front view 3 2 Rear view...

Page 8: ...or any spare parts order or warranty claim 3 3 2 Description Model identification plate 1 Manufacturer name and address 3 Brand 4 KUHN logo 5 Description of the machine 7 Model 9a Machine serial numbe...

Page 9: ...er of the Eurasian customs union EAC marking 4 KUHN logo 7 Model 9 Machine serial number 19 Plate reference 23 Logo EAC 25 Manufacturing year 26 Model year 54 Data matrix Importer plate BRASIL For mac...

Page 10: ...8 HD 1 3 8 6 spline pto shaft With free wheel clutch High cone disc kit Female coupler Raised skid shoes Inner swath disc Inner swath shield Anti ridging plate Side deflector with high cone disk Frame...

Page 11: ...ol 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 strict...

Page 12: ...cturer The manufacturer is not held liable for any damage resulting from machine applications other than those specified by the manufacturer Any use other than the designated operation is at the risk...

Page 13: ...t 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 Ensure that all operating...

Page 14: ...tion 4 2 6 Precautions when driving Tractor handling stability performance and braking efficiency are all affected by weight distribution trailed or mounted implements additional ballast and driving c...

Page 15: ...ended by the manufacturer of the machine To locate a leak use appropriate means Protect body and hands from liquid under pressure Any liquid under pressure particularly oil from hydraulics can penetra...

Page 16: ...c roads check that all criteria are met to be in conformity with the countrie s regulations When coupling a tool to the front and or rear 3 point lift linkage the maximum authorized payload must not b...

Page 17: ...d 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 acco...

Page 18: ...oad 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...

Page 19: ...irements of the tractor manufacturer 4 2 9 Maximum speed Always keep to the legal speed limit for driving a tractor machine assembly on public roads 4 2 10 PTO shaft Use only PTO shafts supplied with...

Page 20: ...hat the PTO shaft is always correctly fitted and locked into place Before connecting the PTO shaft ensure that the PTO speed rotational frequency and direction of rotation are in line with the machine...

Page 21: ...d follow the instructions in the operator s manual provided with the PTO shaft 4 2 11 Waste disposal Respect the environment Never spill pollutants oil grease filters etc on the ground never pour them...

Page 22: ...to cool down Make sure that the parts of the machine that need to be lifted for maintenance or repair work are firmly propped up Before any work is done on the electric circuit or before any electric...

Page 23: ...e are people nearby 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 dista...

Page 24: ...reverse After disengaging the PTO drive cuttings tools can continue rotating for some time Stay away from the machine until all moving parts have come to a complete standstill If the machine hits an o...

Page 25: ...4 Safety GMD24 GMD28 HD 25 KN226BGB_A Disc mower 4 3 Location and description of safety decals on the machine 4 3 1 Location of safety decals 1 2 3 4 K9A148CE 0 5 6 7 8...

Page 26: ...ion necessary for using the machine safely It is imperative to read and comply with all instructions Working on the machine 2 Before leaving the tractor or before adjusting maintaining or repairing th...

Page 27: ...position and in good condition Always stay at a safe distance from the machine Body crushing 4 Stay a safe distance from the machine Crushing hazard Cutting tools 5 The cutting tools and their attach...

Page 28: ...e time the engine is running the PTO drive engaged and the moving parts have not come to a complete stop Do not step on the machine 7 Do not step on the machine Risk of falling or damaging the protect...

Page 29: ...ade up of 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 equi...

Page 30: ...rasian Economic Community EAC marking 139867 Specific requirements for countries member of the Eurasian Economic Community EAC marking 134002 Specific requirements for countries member of the Eurasian...

Page 31: ...Parking stand 5 Work transport cylinder 6 Compensating spring 7 Belt guard 8 Front guard 9 Cutterbar 5 1 1 Designated use of the machine The GMD24 GMD28 HD mowers must only be used for the purpose for...

Page 32: ...3 9 Length in working position 1 42 m 4 8 Width in transport position 1 72 m 5 8 Height in transport position 2 91 m 9 7 3 32 m 10 11 Length in transport position 1 18 m 3 11 Disc rotational speed 298...

Page 33: ...ent The machine is factory fitted with the following equipment 5 3 1 PTO shaft GMD24 HD 1 3 8 6 spline pto shaft or GMD24 GMD28 HD 1 3 8 6 spline pto shaft With free wheel clutch or GMD24 GMD28 HD 32...

Page 34: ...evels 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 press...

Page 35: ...tor cab The machine is supplied with an 18 mm box wrench 1 to carry out certain adjustment and maintenance tasks 6 2 Coupling and uncoupling The machine adapts to tractors fitted with a 3 point linkag...

Page 36: ...re Left side Right side Parallelism of lower linkage arms Adjust tractor lift rods so that lower linkage arms are at equal height from ground Check that the tractor s authorized gross weight as well a...

Page 37: ...rms Distribute the play on each side of the lift linkage Check that the stabilisers function properly Adjustment Locking Unlocking 6 2 3 Preparing the machine Linkage adjustment The machine adapts to...

Page 38: ...ks to the hitch pins on either sides of the machine a Secure each hitch pin with lynch pin b Attach top link Lift the machine using the tractor lift linkage until the parking stand no longer rests on...

Page 39: ...a single acting valve 6 2 6 Electrical connection 6 2 7 Check chain Fit check chain 1 When optional equipment is used follow specific procedures mentioned in the related section Optional equipment Li...

Page 40: ...PTO shafts and connect them to the machine s input shaft and to the tractor PTO stub Check the length of the PTO shaft When the PTO shaft is in its maximum overlap position retracted tubes should not...

Page 41: ...guards must be properly in place and fixed with the chains provided Attach PTO shaft guard using chain provided in order to prevent it from rotating Immediately replace any worn or damaged guard 6 2 9...

Page 42: ...Frame height and check chains Tractor fitted with a hydraulic position control function Lower the tractor lift to obtain a distance of H 450 mm 1 6 between the Hitch pin axis and the ground Note the c...

Page 43: ...ttachment clevis Lower the machine until the check chain is under tension The tractor lift linkage is in working position The height is correct when The cutterbar is resting on the ground The check ch...

Page 44: ...sc mower The safety breakback is reset by reversing a If the safety breakback releases after reset tighten screw 1 to increase spring washer compression Basic adjustments L 94 mm 3 7 a 4 times 2 washe...

Page 45: ...transport position Activate single acting valve of transport work positioning cylinder to lighten pressure on transport lock Pull the release cord until transport lock is released Place the single act...

Page 46: ...oint linkage to rest the machine on the ground Detach the top link from the machine end Uncouple the PTO shaft Support PTO shaft with check chain attached around the hitch pin Disconnect hydraulic hos...

Page 47: ...nt linkage Remove lynch pin 1 and pin 2 Lock compensation system in transport position using pin 2 and lynch pin 1 Pull handle 1 to unlock front guard Raise front guard until lock is automatically eng...

Page 48: ...tomatically locks in transport position The machine is in transport position Never engage the tractor PTO drive when the machine is in transport position If the transport lock does not engage 1 Rotate...

Page 49: ...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...

Page 50: ...working position using pin 2 and lynch pin 1 Activate single acting valve of transport work positioning cylinder to lighten pressure on transport lock Pull the release cord until transport lock is rel...

Page 51: ...height is obtained directly by adjusting the top link length This height is adjustable between 30 and 80 mm 1 1 3 1 depending on the tractors To obtain a different cutting height Place the machine in...

Page 52: ...swath wheel Adjustable Position the swath wheel in order to obtain an angle between 16 A and 32 A The maximum cutting height L1 80 mm 3 1 is obtained when the disks are parallel to the ground The min...

Page 53: ...ated speed of 540 min 1 During work only use the tractor lift linkage to place the machine in headland turn position Check that there is still a play J equalling minimum 15 mm 0 59 between the shell t...

Page 54: ...GMD24 GMD28 HD 54 8 Instructions for work KN226BGB_A Disc mower 8 3 1 Drive speed Adapt the forward speed to the working conditions...

Page 55: ...r GMD24 HD A specific pto shaft is available as option for tractors equipped with a 1 3 8 6 spline pto stub 9 2 Female coupler 9 3 Raised skid shoes The raised skids shoes allow mowing higher between...

Page 56: ...Use this kit in combination with the high cone disc kit The swath width equals 1 50 m 4 11 depending on the forage density 9 6 Inner swath shield The inner swath shield allows reducing the swath width...

Page 57: ...s 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 9 9 Frame connecti...

Page 58: ...gulations 9 10 1 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 hoses being caught during operation 9 11 L...

Page 59: ...ng lights to comply with the road regulations 9 12 1 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 hoses...

Page 60: ...c mower 9 14 Toolbox This equipment allows storing the tools knives bolts and nuts necessary for the machine maintenance 9 15 Wear skids Wear skids can be welded underneath the disk guard to improve i...

Page 61: ...sc mower 10 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 10 1 Frequency chart Mainte...

Page 62: ...Every 200 hours or at the end of the season Lubrication Grease Primary PTO shaft Oil change The cutterbar The side angle gearbox Oil The moving parts and pivot points 10 2 Lubrication The pictorials s...

Page 63: ...key Before using the machine for the first time Grease the transmission During intensive use with tractors of maximum authorized power it is recommended to grease at closer intervals Configuration St...

Page 64: ...so that the oil warms up Oil and lubricants specifications GMD24 GMD28 Oil volume 2 00 L 0 53 US gal Type of oil Gear oil mineral oil Viscosity SAE 80W90 Specification API GL5 extreme pressure When c...

Page 65: ...er drain plug Remove filler plug 1 and its washer Unscrew drain plug 2 and its seal Allow oil to drain completely Wait for dripping to stop Clean and reinstall drain plug 2 and its washer Replace if n...

Page 66: ...5 extreme pressure When changing the oil it is recommended to use either an identical mineral oil or a synthetic oil of type PAO Poly Alpha Olefine with viscosity grade SAE 75W90 From the transport po...

Page 67: ...hole Clean and reinstall drain plug 2 and its washer Clean and reinstall filler plug 1 and its washer 10 3 Maintenance Before adjusting maintaining or repairing the machine turn off ignition key and...

Page 68: ...Checking the tension Press belt using a force of 3 5 daN 7 9 lbf The belt should not deflect more than H 10 mm 0 39 Adjusting the tension Unscrew the 2 nuts 1 Tighten screw 2 to tension belts Check b...

Page 69: ...k breather plug for good functioning 1 Reinstall breather plug 1 10 3 3 Checking cutterbar oil level Regularly check the cutterbar oil level From the transport position Remove filler plug 1 and its wa...

Page 70: ...brication recommendations have been respected Discs can be rotated freely by hand when the machine is hot Before checking that the discs rotate freely by hand Turn off the engine remove ignition key a...

Page 71: ...the following cases Damaged knives Very rough conditions can cause knives to crack and become deformed Worn knives The length C of a knife must exceed 65 mm 2 6 The width B of a knife measured at A 1...

Page 72: ...season The fixing bolts should be changed in the following cases When there is visible distortion When the locking compound is worn or inoperational When the bolt head wear reaches the center line of...

Page 73: ...using box spanner supplied with the machine Remove bolt through opening located at the front of the disc guard Knives can be turned over on the same disc to use the other cutting edge or replaced On...

Page 74: ...s Place a wooden wedge 2 between two discs to stop them from moving Remove 2 bolts 1 and their spring washers using the box spanner supplied with the machine Remove the disc conical cover Remove the 2...

Page 75: ...t and the cutter bar wear plates c If this is not the case fit one maximum two spacer s between the disc and the mounting hub d Tighten screws Torque 12 daNm 89 lbf ft 10 3 7 Outer and inner cones Che...

Page 76: ...ged paintwork Store the machine in a sheltered dry place with the cutter bar in horizontal position Inspect and replace worn knives and bolts Slacken V belts and check their condition Fully lubricate...

Page 77: ...the Eurasian Economic Community EAC marking 10 5 Dismantling and scrapping of the machine At the end of the machine s life the various machine components must be disposed of or recycled in compliance...

Page 78: ...ation Incorrect main frame setting Adjust main frame height with regards to the ground Excessive ground speed Reduce groundspeed Cutter bar pivot bushes are worn or seized Check condition of pivot bus...

Page 79: ...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 must always represent 20 of the tractor unladen weight Prior to use check...

Page 80: ...avity 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...

Page 81: ...ual 3 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 Indi...

Page 82: ...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 Determining...

Page 83: ...l 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 ca...

Page 84: ...n b Measure dimension c t1 Load on front axle Tractor machine Hopper empty 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 M...

Page 85: ...ractor 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 t...

Page 86: ...GMD24 GMD28 HD 86 12 Appendix KN226BGB_A Disc mower t Axle loads Tractor machine Calculating the front tool weight M1 t T Calculating the distance a a b x T2 t2 M1 t _____kg t ________ kg...

Page 87: ...manufacturer 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...

Page 88: ...nd 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...

Page 89: ...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...

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Page 92: ...HARD SAS 24 route de Nantes F 44680 CHEMERE FRANCE KUHN HUARD SAS 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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