KUHN GMD33 N Operator'S Manual Download Page 28 | Manualshive

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Disc mower

26

GMD33N

Putting into service



Preparing the machine

Linkage adjustment

The machine adapts to tractors fitted with a 3-point hitch

coupler category 0 - 1N or 1.

3 point, Category 0:

- Place lower and upper links in position (a).

3 point, Category 1N:

- Place lower and upper links in position (b).

3 point, Category 1:

- Place lower and upper links in position (c).

a

b

c

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Summary of Contents for GMD33 N

Page 1: ...Original instructions KN091AGB E OPERATOR S MANUAL Disc mower GMD33N KN091AGB E English 04 2011 KN091AGB_E ...

Page 2: ......

Page 3: ...f 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 We therefore reserve the right to make improvements or changes when it becomes practical to do so without incurring any obligatio...

Page 4: ...Safety instructions 7 Location and description of safety decals on the machine 18 Road safety equipment and recommendations 21 Machine specifications 22 Description and glossary 22 Technical specifications 23 Sound levels 23 Putting into service 24 Description of control elements 24 Coupling and uncoupling 24 Instructions for transport 33 Putting the machine into transport position 33 Conformity w...

Page 5: ...justments in working position 40 Machine use 42 Optional equipment 43 Wear plate 43 Hitch frame offset 43 Swath shield 44 Maintenance and storage 45 Frequency chart 45 Lubrication 46 Maintenance 49 Storage 56 Troubleshooting guide 57 Appendix 58 Calculating the load on an axle 58 Limited Warranty 64 ...

Page 6: ...Disc mower 4 GMD33N Identification of the machine Identification of the machine 1 Front view 2 Rear view ...

Page 7: ... information is to be given to the Kuhn authorized dealer for any spare parts order or warranty claim Type GMD33 N Serial no 4 Optional equipment Tick box corresponding to the equipment fitted on your machine TYPE MASSE kg N MA DE IN FR AN CE TYPE MASSE kg KUHN S A 67700 SAVERNE FRANCE N MADE IN FRANCE Wear plate Hitch frame offset Swath shield ...

Page 8: ... 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 ...

Page 9: ...y 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 safety and p...

Page 10: ...ace 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 adapted to g...

Page 11: ...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 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 aut...

Page 12: ...d 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 the tires t2 max kg Maximum load authorized on the tractor rear axle according to the tires M1 kg Total weight of front tool or front ballast T _____kg ...

Page 13: ...ntil 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 weight exceeds the tractor Gross Combin...

Page 14: ...tions are in conformity with the requirements of the tractor manufacturer Maximum speed Always keep to the legal speed limit for driving a tractor machine assembly on public roads 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 hitc...

Page 15: ...O stub the rotating PTO shaft 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 th...

Page 16: ...ety 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 them down...

Page 17: ...ric 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 Repairs on elements 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 h...

Page 18: ...eight to avoid contact with stones or rocks Never start a mower conditioner when other people are close 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 The protection covers help reducing risks of projections ...

Page 19: ... 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 from the machine when the cutting tools are in movement Never work in reverse After disengaging the PTO drive cuttings tools can continue rotating for some time Stay away from the machine until all moving parts ...

Page 20: ...Disc mower 18 GMD33N Safety 3 Location and description of safety decals on the machine Location of safety decals 1 2 3 4 5 6 7 59900600 599011001 ...

Page 21: ...chine 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 Projections 3 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 Rotating cutting tools 4 Keep away...

Page 22: ...ools 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 Do not step on the machine 7 Do not step on the machine Risk of falling or damaging the protection device 59900600 599011001 ...

Page 23: ...is mounted in the factory or by your authorized Kuhn dealer according to current safety regulations The rear safety device comprises 1 red reflector 1 The front safety device comprises 1 white reflector 1 Always keep to the legal speed limit for driving a tractor machine assembly on public roads 1 1 ...

Page 24: ...Machine specifications 1 Description and glossary 0 1 Check chain 2 Headstock 3 Safety breakback 4 Gearbox 5 Belt guard 6 Safety cover 7 Cutterbar 8 Rear guard 9 Inner guard 10 Left pivoting lower link 11 Suspension spring 2 1 10 8 5 4 11 6 7 9 3 ...

Page 25: ...on 1 80 m 5 10 Height in transport position 0 84 m 2 9 Length in transport position 1 30 m 4 3 Disc rotational speed 3030 min 1 PTO speed 540 min 1 Weight 210 kg 463 lb Minimum PTO power requirement 14 kW 19 hp Sound levels 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 continu...

Page 26: ...ts The machine is supplied with an 16 mm box wrench 1 to carry out certain adjustment and maintenance tasks 2 Coupling and uncoupling The machine adapts to tractors fitted with a 3 point hitch coupler category 0 1N or 1 Description of coupling elements A PTO shaft 1 3 8 6 splines A check chain 1 ...

Page 27: ...ed of 540 min 1 Check that the tractor s authorized gross weight as well as its lift capacity and maximum weight per axle are not exceeded See section Safety Safety instructions Precautions when driving on public roads Appendix The tractor must be fitted with lower link stabilizers 540 M1 a b c d T1 T2 M2 ...

Page 28: ...ment The machine adapts to tractors fitted with a 3 point hitch coupler category 0 1N or 1 3 point Category 0 Place lower and upper links in position a 3 point Category 1N Place lower and upper links in position b 3 point Category 1 Place lower and upper links in position c a b c ...

Page 29: ...ree 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 a Category 0 b Category 1N c Category 1 Check chain Fit check chain See section Frame height adjustment to position the check chain a b a b c ...

Page 30: ...e L of at least 25 mm 1 must be maintained When 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 shaf...

Page 31: ...ion Measure and adjust the height of the hitch pins until the same measure is obtained on each side Note the difference in height between the two hitch pins Place the machine in working position Adjust the tractor left levelling rod according to the difference in height Place the machine in headland turn position Check the difference in height between the 2 hitch pins Proceed the same way to obtai...

Page 32: ...e height and lock using roll pin 2 Attach check chain supplied with the machine to one of the upper free holes at the tractor s top link attachment clevis Lower the tractor s lift linkage to tension the check chain The tractor lift linkage is in working position The height is correct when The cutterbar is resting on the ground The check chain is under tension 1 The distance H 320 mm 1 The 2 hitch ...

Page 33: ...e safety breakback releases after reset tighten nut 1 to increase spring compression Tighten counter nut 2 Basic adjustments L 60 mm 2 4 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 In case an obstacle has been struck check that the mowing unit has not been damaged a L 1 2 ...

Page 34: ...s Adjustment Loosen counter nut 2 Tighten or loosen screw 1 to obtain the required setting Tighten counter nut 2 Uncoupling the machine From the transport position Remove check chain on tractor side Lower the tractor three point linkage to rest the machine on the ground Detach the top link from the machine end Release the lower links Disconnect the PTO shaft from the tractor Support PTO shaft with...

Page 35: ...achine off the ground using the tractor lift linkage Lock left adaptation device 1 using lock pin 2 Secure using R clip 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 Disengage the PTO drive and wait for all moving parts to come to a complete standstill 1 2 ...

Page 36: ...Fold up safety cover over guard frame Unlock rear guard using 16mm box wrench supplied with the machine a Fold rear guard onto front guard b Place box wrench back in its holder Link the two guards using strap 1 Unlock cutterbar using lever 1 a b 1 1 ...

Page 37: ...rbar rearward behind the main frame Lock cutterbar using lever 1 The transport position is obtained by raising the tractor s three point linkage The machine is in transport position Never engage the tractor PTO drive when the machine is in transport position 1 ...

Page 38: ...ith the road regulations Check that the retroreflective 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 ...

Page 39: ...he transport position Lower tractor lift linkage to position the machine near to the ground Unlock cutterbar using lever 1 Pivot cutterbar in working position 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 ...

Page 40: ...Disc mower 38 GMD33N Instructions for work Lock cutterbar using lever 1 Open strap 1 Unfold rear guard until it locks in place 1 1 ...

Page 41: ...nd the guard frame Unlock left adaptation device Remove R clip Remove lock pin 2 Insert lock pin in one of the free holes on the top link Secure using R clip Lower the tractor three point linkage to rest the machine on the ground The machine is in working position 1 2 ...

Page 42: ...ink Modify the top link length to alter the machine tilt angle Check cutting height Reduced or increased ground pressure Increase spring tension 1 when working on slopes When the headstock is in the maximum right offset position Adjustment Tighten nut 2 to tension spring and increase the outer skid ground pressure The maximum cutting height L1 80 mm 3 1 is obtained when the discs are parallel to t...

Page 43: ...ning of lower links If the Hitch frame offset equipment is fitted on the machine Balance the play on either sides of the lift linkage and lock lower link stabilizers Measure dimension E Adjust hitch frame to obtain measure E 50 mm 2 Unscrew the 4 bolts 1 Slide hitch frame to the required position Tighten the 4 bolts 1 Torque 13 daN m 96 lbf ft L E 1 1 ...

Page 44: ...n and the presence of the outer disc cone cap Drive speed Before mowing and to reduce risks of projections Unfold rear guard until it locks in place Unfold safety cover around the guard frame Keep all persons and animals away from the machine danger zone Never lean or step on the protection cover Replace cap if missing or damaged Adapt the forward speed to the working conditions ...

Page 45: ...al equipment 1 Wear plate Wear plates can be welded underneath the disc guard to improve its resistance to wear in difficult working conditions 2 Hitch frame offset A hitch frame offset equipment can be ordered for tractors with a wide wheel track ...

Page 46: ...The swath shield can be adjusted in 3 different positions Adjustment Loosen screw 1 Remove screw 2 Position swath shield opposite hole that corresponds to the required adjustment Reinstall screw 2 Torque 6 daN m 44 lbf ft Tighten screw 1 Torque 6 daN m 44 lbf ft Opened position a Maximum drying surface Closed position c Minimum swath 2 1 a b c ...

Page 47: ...gnition key and wait until all moving parts have come to a complete stop 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 Oil change Cutterbar Gearbox Oil Moving parts and articulations Maintenance Breather plug checking and cleaning ...

Page 48: ...orage 2 Lubrication Clean grease nipples before greasing PTO shaft Primary PTO shaft Every 8 hours Universal joints 1 Every 20 hours Transmission tube 2 Every 40 hours Guide rings 3 Lubricate with multi purpose grease grade NLGI 2 1 1 3 3 2 ...

Page 49: ...g of the filler plug Clean and reinstall filler plug 1 and its washer Replace if necessary Checking the oil level Park the machine on an even fairly level ground Through filling hole check that oil height h is comprised between 7 and 8 mm 0 27 0 31 Before draining oil operate the machine for a few minutes so that the oil warms up The cutterbar is lubricated with 1 30 L 0 34 US gal of extreme press...

Page 50: ...Check angle gearbox oil level The oil must reach the lower edge of the filling hole Clean and reinstall drain plug 2 and its washer Replace if necessary 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 The angle gearbox is lubricated with 0 20 L 0 42 US pints of extreme pressure oil for mechanic...

Page 51: ...aN 6 7 lb on the belt the belt should not deflect more than H 6 mm 0 23 Before adjusting maintaining or repairing the machine turn off ignition key and wait until all moving parts have come to a complete stop Regularly check belt tension and in particular during the first hours of use Never replace belts individually Replace belts in full sets H 2 1 ...

Page 52: ...Torque 13 daN m 96 lbf ft Breather plug checking and cleaning The draining filling plug also serves as breather plug From the working position Remove draining filling plug 1 Clean and check that draining filling plug is in good condition 1 Reinstall draining filling plug 1 and its seal Grease Safety breakback lock bolt 1 must be kept greased permanently 1 2 1 1 ...

Page 53: ... 7 and 8 mm 0 27 0 31 Top up if necessary Clean and reinstall filler plug 1 and its washer Replace if necessary 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 checking that the discs rotate freely by hand Turn off the engine ...

Page 54: ...llowing cases 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 The hole L for the securing bolt must not become oval by more than 20 mm 0 8 Always replace both knives per disc to avoid creating an out of balance force Immed...

Page 55: ...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 removed 5 times Replace nuts in the following cases When the contact washer has lost its elasticity When the contact washer loosens itself from the nut When nut wear reaches a 5 mm 0 2 After having been removed 5 times Check the condition of the...

Page 56: ...ure that the securing nut and bolt are in good condition and if necessary replace them Torque knife locknut to 7 5 daN m 55 lbf ft Dull knives require more horse power and have a negative effect on the cut quality Disc replacement Inner disc Intermediate discs Place a wooden wedge 2 between two discs to stop them from moving Remove nut 1 Remove the disc Replace knife lock nuts and bolts when they ...

Page 57: ...conical centre of dust seal 3 at the bottom Position their largest diameters at right angles to each other Position conical centre of spring washer at the top Place a wooden wedge 2 between two discs to stop them from moving Tigthen nut 1 Torque 18 daN m 133 lbf ft 3 1 2 ...

Page 58: ... knives and bolts See section Inspection of knives and securing elements Slacken V belts and check their condition Release safety breakback lock Fully lubricate the machine At the start of each season Check that all nuts and bolts are sufficiently tightened Retension belts Retension and check that safety breakback system functions Re read the operators manual Make sure that all protection devices ...

Page 59: ... conditions Adjust cutterbar ground pressure Too much cutterbar down pressure Bad ground contour adaptation Incorrect main frame setting Adjust main frame height with regards to the ground Excessive ground speed Reduce groundspeed Insufficient cutterbar ground clearance in headland turn position Incorrect tractor lift linkage setting See machine attachment Too long levelling rod adjustment on trac...

Page 60: ...nladen 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 and the front axle centre ...

Page 61: ...equired 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 value an...

Page 62: ...l 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 ...

Page 63: ... 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 T1 T2 T1 _____kg T2 _____kg ...

Page 64: ...Disc mower 62 GMD33N Appendix T Axle loads Tractor only T _____kg ...

Page 65: ...hine 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 b c d t1 t2 M2 t1 _____kg t _____kg ...

Page 66: ...r 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 inspection from misuse from lack of maintenance and or if the machine has been involved in an accident lent out or used for purposes other than those for which it was intended by the Company This Limited Warrant...

Page 67: ...y 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 guards and protective elements of whatever nature have been inspected regularly and maintained in perfect working order The judgment of the Company in all case of claims under this Limited Warranty shall be fin...

Page 68: ...nforms 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 Serial no declares that the product described hereafter Manufacturer name and address The manufacturer Name and address of the person authorised to compile the technical file 2 y r o t a n g i S 1 y r o t...

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