Original operating Instructions 150 000 002 00 US

Original operating Instructions150 000 002 00 USDisc MowerAM 203 SAM 243 SAM 283 SAM 323 S(from machine no. 486 575)20-Apr-2010

I. ForewordDear customer,Ordering Replacement PartsWe thank you for the trust you have placed in us bypurchasing this machine.When you received this machine, the dealer shouldhave given you instructions for the operation,maintenance and adjustment of the machine.However, this brief introduction to the machine cannot replace a detailed acquaintance with the differenttasks and functions of the machine and the proper wayof treating it.These operating instructions are designed so that youare extensively informed of the activities required ineach area, from commissioning and operation to themaintenance and care of the machine. The structure ofthe individual chapters in the text and illustrationscorresponds to the sequence of work procedures whenyou use the machine.Read these operating instructions carefully before youuse the machine, and pay special attention to thesafety instructions.Important: To avoid accidents and to ensuremaximum results, no alterations maybe made to the machine without themanufacturer´s permission. Similarly,the machine must only be used underthe conditions prescribed by Krone.JahrAnnéeTypeMaschinenfabrik Bernard Krone GmbHHeinrich-Krone-Straße 10, D-48480 SpelleMasch. NrNo. de sérieMade inGermanyAMS-1-038This symbol is designed to draw attentionto the safety instructions contained in theoperating instructions. These instructionsmust be observed to prevent accidents.You will find this symbol at various pointsin the operating instructions. It givesspecial handling instructions whichshould be particularly observed in the useof the machine.All information, illustrations and technical information inthe operating instructions represent the latest status atthe date of publication. The company reserves the rightto make constructional alterations at any time andwithout prior notice or obligation.TypeMach. No.YearWhen ordering replacement parts, the machine type,machine number and year of manufacture must begiven. These details can be found on the identificationlabel on the machine.We recommend that these details be entered in theabove boxes so that they are readily available.And please remember that imitations and copies ofparts, especially wearing parts, do not keep what theyappear to promise. Material quality is difficult to testvisually, therefore special care is required whenpurchasing cheap offers and imitation parts!The simplest remedy:Purchase only original KRONE parts!1

List of ContentsI. Foreword ............................................................................................................... 1II. List of Contents .................................................................................................... 2III. General .................................................................................................................. 31. Introduction1.1 Position of Information Labels on Disc Mower........................................................ 61.2 Position of the general information labels on the machine ..................................... 81.3 Technical Data for Disc Mower............................................................................... 92. Preparing for use2.1 Special safety instructions ...................................................................................... 102.2 Fitting the disc mower............................................................................................. 102.3 PTO shaft ............................................................................................................... 122.4 Transport Position .................................................................................................. 132.5 Lighting ................................................................................................................... 142.6 Working position ..................................................................................................... 142.7 Driving on the headlands ........................................................................................ 152.8 Disassembly of the disc mower .............................................................................. 152.9 Safety measures before mower operation ............................................................ 163. Settings on the disc mower3.1 Special safety instructions ...................................................................................... 173.2 Adjusting the cutting height .................................................................................... 173.3 Adjusting the Safety Breakaway Unit ..................................................................... 183.4 Adjusting the compensation springs ....................................................................... 193.5 Adjusting the working height of the lower link arms ................................................ 193.6 Changing the blades on the cutting discs with screw connection blades ............... 194. Maintenance4.1 Special safety instructions ...................................................................................... 214.2 General ................................................................................................................... 214.3 Oil level inspection and oil change of the cutterbar ................................................ 224.4 Oil level inspection and oil change in the main Gearbox ........................................ 224.5 Oil level check and oil change in the gearbox of the carrier arm............................ 234.6 Protective covers .................................................................................................... 244.7 Lubrication .............................................................................................................. 244.8 Maintenance of the safety break-away ................................................................... 245. Winter Storage ...................................................................................................... 266. Start-up after Winter Storage6.1 General................................................................................................................... 276.2 Overload clutch - ByPy ........................................................................................... 276.3 Overload clutch - Walterscheid ............................................................................... 287. Accessory ............................................................................................................. 29Appendix ............................................................................................................... 312

III. General1. Operation in Accordance withSpecificationsThe disc mower is designed solely for normal agriculturaluse (operation in accordance with specifications).Any use of the machine for other purposes is deemed tobe not in accordance with specifications. The manufacturerbears no responsibility for any resulting damage; such useis entirely at the operator´s risk.Use in accordance with specifications also includesadherence to the operating, maintenance and serviceinstructions prescribed by the manufacturer.The disc mower must only be used, maintained andrepaired by personnel who are acquainted with the machineand have been informed of the danger involved.The applicable accident prevention regulations and allother generally recognized safety, health and road trafficregulations must be adhered to.Any unauthorized alterations to the machine render anyliability for damage undertaken by the manufacturer nulland void.Basic rule:Before any public roads are used andbefore the machine is started, check thedisc mower and the tractor for roadworthinessand operational safety.2. Safety and Accident PreventionRegulations1. Take note of both the regulations in these operatinginstructions and also the general safety and accidentprevention regulations!2. The attached warning and information signs giveimportant advice for safe operation. Observing themwill enhance your safety!3. When you use public roads, make sure you observethe relevant traffic regulations!4. Make sure you know all equipment and controls beforeyou begin working with the machine. When you areoperating the machine, it´s too late!5. The operator´s clothing should be tight fitting. Avoidwearing loose fitting clothes.6. Keep the machine clean to prevent the danger of fire!7. Before starting the machine and moving off, check thedanger area around the tractor (children!). Good visibilityis absolutely essential!8. Carrying passengers on the implement during work ortransport is not permitted.9. Make sure that the implement is correctly coupled, andthat it is only fixed and secured with the prescribedfittings!10.Make sure that the supporting devices, jacks etc. arein the correct position during assembly and removal!11.Special care is required when equipment is beingcoupled to the tractor or detached from the tractor!12.Ballast weights must always be attached in theprescribed way at the designed attachment points!13.Adhere to the permitted axle loads, total weights andtransport dimensions!14.Check and fit transport equipment – e.g. lighting,warning signs and, if required, protective equipment!15.Operating equipment for remote controls (ropes, chains,rods etc.) must be laid out in such a way that, whateverthe working or transport position, it can not inadvertentlycause any movements.16.Prepare equipment for road transport as prescribed bythe manufacturer, and lock the equipment in accordancewith the manufacturer's regulations!17.Never leave the driver´s position when the tractor is inmotion!18.The speed of travel must always be suited to theenvironmental conditions! Avoid any sudden turnswhen travelling uphill, downhill or across a slope!19.The handling, steering and braking of the tractor isaffected by integrated or attached equipment andballast weights. Make sure that you allow for moreflexibility in steering and braking!20.When turning, remember to take account of the wideload and/or the greater weight of the equipment!21.Only switch on equipment when all protectivedevices are fitted and in protection position!3

22.Persons are not allowed to enter the working area!23.Keep clear of the area of rotation and swing of theequipment!24.Hydraulic controls must only be operated if no personsare in the swing area!25.Power operated parts (e.g. by hydraulics) containdanger points which can cause injury by bruising andgrazing!26.Before leaving the tractor, rest the mower on the,ground, switch off the engine and remove the ignitionkey!27.Make sure that no personnel go between the tractorand the implement unless the tractor is protected fromrolling by the parking brake and/or wheel blocks!3. Attached Equipment1. Special care is required when the implement is beingconnected to the tractor or disconnected from it!2. The implement must only be coupled to theappropriate fittings (e.g. the 3-point connection), andthey must be so secured (transport, operation) thatunintentional lifting or lowering of the implement isnot possible.3. When connecting the three point linkage, it isabsolutely essential that the hitching categories ofthe tractor and attachment (e.g. power take-off shaftspeed, hydraulics) are matched!4. When operating the external controls for three-pointconnection, make sure that nobody goes betweenthe tractor and the implement (danger of injury)!4. Power Take-Off shaft Operation1. Only the P.T.O. shafts prescribed by the manufacturermay be used!2. Both male and female guard tubes and cones of allP.T.O. shafts must be fitted and in good condition!5.When using P.T.O. shafts with overload or free wheelclutches that are not covered by the guards on thetractor, the overload or free wheel clutches must befixed on the implement side!6. Always ensure correct assembly and guarding of theP.T.O. shaft!7. Protect the P.T.O. shaft guard from rotating with theshaft by fitting the chains!8. Before switching on the power take-off shaft, makesure that the p.t.o. speed of the tractor matches thepermitted speed of the implement!9. Before switching on the power take-off shaft, makesure that nobody is in the danger area of the implement!10.Never switch on the power take off shaft when thetractor engine is turned off!11.Any work on the power take-off shaft may only becarried out when nobody is in the area of the rotatingpower take-off shaft or P.T.O. shaft.12.The power take-off shaft should always be turned offwhen the angle is too great or the p.t.o. shaft is notrequired!13.Danger! Working elements continue to rotate after thepower take-off shaft is turned off! Do not approach themachine during this time! Work may only be carried outon the machine when the machine is fully stationaryand the rotating parts have been secured.14.Cleaning, lubrication or adjustment of the P.T.O. shaftor any equipment driven by the power take-off shaftmay only be carried out when the p.t.o. shaft and theengine are turned off and the ignition key has beenremoved! Rotating parts must be secured.15.Place the detached P.T.O. shaft on the support bracketprovided!16.After removing the P.T.O. shaft, place the protectivecover on the stub of the power take-off shaft!17.Any damage must be repaired immediately before anywork is carried out with the attachment!3. Observe the tube overlap prescribed for P.T.O. shaftsin transport and operating position!4. Before installing or removing the P.T.O. shafts, makesure to turn off the power take-off shaft and the engine,and remove the ignition key!4

5. Hydraulic System1. The hydraulic system is pressurized!2. When connecting hydraulic cylinders and motors,make sure that the hydraulic hoses are correctlycoupled!3. When connecting hydraulic hoses to the tractor´shydraulic system, make sure that all pressure hasbeen released from the hydraulics of both thetractor and the implement!4. When there are functional hydraulic connectionsbetween the machine and the implement, allcoupling sleeves and plugs must be marked toprevent operating errors. If the connections areswitched, the functions are reversed (e.g. liftingand lowering) – this can cause accidents!5. Hydraulic hoses must be checked regularly, andthey must be replaced if they are damaged orworn. Replacement hoses must conform to thetechnical requirements of the implementmanufacturer!6. When tracing leaks, suitable aids should be usedto prevent injury!7. Fluid leaking under high pressure (hydraulic oil)can penetrate the skin and cause serious injury!When injury occurs, consult a doctor immediately!Danger of infection!8. Before carrying out any work on the hydraulicsystems, lower the machine to the ground,depressurize the system and turn off the engine!6. Maintenance1. Repair, maintenance and cleaning work and thecorrection of malfunctions must always be carried outonly when the drive is turned off and the engine is ata standstill! Remove the ignition key! Apply the parkingbrake.2. Nuts and bolts must be checked regularly for tightness,and tightened if necessary!3. When carrying out maintenance work on the machinein a lifted position, it must always be supported onsuitable jacks.4. When replacing fittings that contain cutting blades,always use suitable tools and gloves!5. Oil, grease and filters must be correctly disposedof!6. The power supply must always be disconnectedbefore any work is carried out on the electrical system!7. If protective devices are subject to wear, they must bechecked regularly and replaced in good time!8. When electric welding is carried out on the tractor andany fitted attachments, the cables must be disconnectedfrom the generator and battery!9. Replacement parts must conform at least to thetechnical requirements defined by the manufacturer!The best guarantee is to use only original KRONEparts!10.Where gases are stored, only refill with nitrogen.Danger of explosion!5

1. IntroductionThe KRONE disc mower is equipped with all necessary safety features (protective equipment). Not all dangerpoints on this machine can be completely safeguarded with regard to adherence to the functionality of the machine.On the machine you will find appropriate warnings that point out this residual danger.We have designed these danger notices in the form of so-called warning icons. For the position of these warningnotices and their meaning/explanation, please refer to the following information.Make sure that you are fully conversant with the meaning of the adjacent warning icons. Thetext next to the icons and the position on the machine where the notices are displayed provideinformation about the specific danger points on the machine.1.1 Position of Information Labels on Disc Mower2 3 6 8 4 5 1 676

12DANGER939 462-0(1) RequiredThrown objects or blade contactcan cause serious injury or death.* Stay clear of machine while in operation.* Keep discharge chute and shields inplace.* Replace worn or damaged portectiveskirting.942 020-2942 020-2(2) Required34942 018-1(1) Required942 050-0(1) Required56942 019-1(1) Required939 495-1(2) Required7 8WARNINGClose valve whentransporting orservicing machine942 032-2949 228-0(2) Required942 032-2(1) Required7

939 278 -21.2 Position of the general information labels on the machine45 6 3 21112939 567-1139-888 139-889139 888-0 139 889-01939 567-1 (1x)2 939 180-2 (1x)3 939 541-2 (1x) AM 203 S939 542-2 (1x) AM 243 S939 546-2 (1x) AM 283 S939 545-2 (1x) AM 323 S4 942 132-0 (1x)5 942 009-2 (1x)5 939 548-0 (1x)bei Messerschnellverschlußbei MesserschraubverschlußDEVor der Erstinbetriebnahme und 1x j‰hrlich vorder Ernte muss die Reibkupplung gel¸ftet werdenEl embrague de seguridad debe someterse a unapurga antes de la primera puesta en marcha y unavez al aÒo antes de iniciarse la campaÒa de trabajo.FLa sÈcuritÈ ‡ friction doit faire l'objet d'une purgelors de la premiËre mise en route et une fois paran avant le dÈbut de la saison.The friction clutch must be bled at the firstGB operation and once a year before the harvestingseason.ILa frizione di sicurezza deve essere sottomessa aduno spurgo alla prima messa in campo come pureuna volta all'anno prima della campagna.6939 278-2 (1x)8

1.3 Technical Data for Disc MowerAM 203 S / AM 243 S/ AM 283 S / AM 323 STypeAM 203 SAM 243 SAM 283 SAM 323 SCutting width [mm] 2000 2400 2800 3200Transport width Tractor width Tractor width Tractor width Tractor widthNumber of mowing discs 3 4 5 6/4Number of mowing cylinders 2 2 2 2/4Area covered [hectares/hour] 2,5 3 3,5 4Power consumption [kW/PS] 27/37 32/43 38/52 44/60Power take-off shaft speed[rpm] 540 540 540 540Weight of machine [kg] 420 460 500 550Required hydraulic connections1 x Single acting 1 x Single acting 1 x Single acting 1 x Single actingRequired Quantities and Lubricant Designations for GearboxesBiological lubricantsRequired quantity [litres] Oil type Brand nameMain gearbox 0,4 SAE 90Gearbox ofconditioner driveMowing beamAM 203 S 4AM 243 S 5AM 283 S 6AM 323 S 70,5 SAE 90SAE 90on requestFor biological lubricants, the oil change intervals must be strictly adhered to due to ageing ofthe oils.9

2. Preparations for use2.1 Special safety instructions• Special care is required when fitting the disc mower to the tractor or removing it from thetractor!• Hydraulic hoses must be checked regularly, and they must be replaced if they are damagedor worn!• When connecting the hydraulic hoses to the tractor hydraulic system, take care to makesure that the hydraulic system in the tractor and the mower is not pressurized!• Only operate disc mower when all protection features are fitted and are in protectionposition.• The disc mower must only be operated with a maximum PTO shaft speed of 540 rpm.2.2 Fitting the disc mowerWhen the tractor is driven up to the disc mower and when the disc mower is lifted, nopersons must be allowed to go between the tractor and the attachment.CAUTION!Only assemble the machine directly to the three-point suspension of the tractor.It is not permitted to assemble the machine to a „Quick-Hitch frame“ (U-frame coupler).Adapting the hitch pointsThe hitch points are adjusted as standard for cat. II.AMS-1-001Kat. IIIf cat. I is to be used, hitch point (1) must be moved to theoutside. Tighten the bolts (2) firmly after modification.AMS-1-0011Kat. I2If the mower is to be moved to the side in the case ofcat. II, hitch point (1) must be moved to the outside.Tighten the bolts (2) firmly after modification.3AMS-1-00112Kat. II210

CouplingCouple the disc mower to the lower link arm (1) andupper link arm (2) and secure it.Attach the lower link arm to the tractorwith limiting chains or rods to ensurethat the disc mower will not slew intransport or mowing!243If the lower links (1) are equipped withquick release hitches, the followingpoints must be observed:In particular in headland position, highforces occur in the lower linkage bolts(3), which act upwards in the left-handside hitch.This is why the hitches must be in verygood condition.Additionally, after coupling, the hitchesmust be secured against accidentalopening using the locking holes (4)provided.1AMS-3-002Connecting the hydraulic hoseLiquid that squirts out at high pressure (hydraulic oil) can penetrate the skin and cause severeinjuries!If injuries occur, consult a doctor at once! Danger of infection!Use a single action hydraulic control device with a float position in the tractor!Depressurize the tractor hydraulic system. Insert thehydraulic hose into the hydraulic coupling of the controlvalve.Control cableThe control cable must be so positioned that it can not cause any accidental movements in anytransport or working positions and does not come into contact with the tractor tyres.The control cable for the releasing function "Transportposition" should be fitted at a suitable position on thetractor.11

Fixing the compensation springof the AM 283 S and AM 323 SThe rear compensation spring can onlybe fitted in transport position.123Release the linch pin (1) and washer (2) from the uppersecuring bolt. Push the compensation spring (3) onto thesecuring spring after the distance sleeve. Secure it withthe washer and linch pin.AMS-0-010Adjusting piece for lifting cylinder andflotation springThe lower bearing bolt for the lifting cylinder and theflotation spring must be locked in the correct position onthe different mower types. This adjustment is performedat the factory and must not be changed.Bolt (1) must be installed through lever (2).21AM 323 SAM 283 SAM 243 SAM 203 SProtective cloth coversCheck the protective cloth covers. Worn or damaged covers must be immediately replaced!2.3 PTO shaft• Only the prescribed PTO shaft supplied by the manufacturer may be used!• The PTO shaft must only be fitted and removed when the PTO shaft and engine areswitched off and the ignition key has been removed.• Make sure that the locking devices have locked in place correctly after every fittingprocedure.• Protect the PTO guard from turning with the shaft by fitting the arresting chain in place.• Fit the arresting chain in such a way that the PTO shaft has sufficient freedom of movementin all operating positions.Push the PTO shaft (1) onto the gearbox input shaft ofthe disc mower, with the friction clutch (2) facingtowards the disc mower. Make sure that the lockingdevices of the PTO shaft have correctly locked intoplace.12Check the slewing area and the freedomof movement of the PTO shaft! If the PTOshaft comes into contact with the tractoror disc mower, this can cause damage.12AMS-0-037

Adapting the PTO shaftTo adapt the PTO shaft, the halves of the PTO shaft (1)and (2) are held together in the shortest operatingposition in order to determine the overlap of the profiletube and the protective tube.The procedure for shortening the PTOshaft can be found in the operatingmanual of the PTO shaft manufacturer.122.4 Transport positionAMS-0-003• It is forbidden for persons to ride on the disc mower.• Mount the lighting and check that it works.• In transport position, always close the hydraulic shut-off valve on the hydraulic cylinder.• When the mower is in transport position, it is important to remember that the vehicle has agreater overall height!When the tractor is driven on public roads, the mower must always be in raised position.The mower must only be raised when the mower is at a complete standstill.To raise the mower, pull up the locking device (2) withthe control cable (1) from the tractor.12AMS-0-008Activate the tractor’s control valve for the hydrauliccylinder. The mower then lifts up into transport position.AMS-0-00513

As a transport safety mechanism, there is a shut-offvalve (1) on the hydraulic cylinder (2) of the disc mower.This shut-off valve must always be closed when themower unit is raised.Shut-off position = manual leverat 90° to the direction of the pipe21AMS-0-0062.5 LightingInsert the light (1) into the light holder (2) from above.Secure it with a linch pin. Check that it works.12AMS-0-0072.6 Working positionThe mower unit must only be lowered when you have made sure that no persons, animals orobjects are in the tilting area of the mower unit.Open the shut-off valve (2) on the hydraulic cylinder (1)of the disc mower. Slowly lower the mower unit byoperating the control valve on the tractor.12Check whether the locking device (3) hascompletely folded down or clicked intoplace. This locks the mower unit andprevents it from being accidentallyraised when the machine is running.3AMS-0-00414

2.7 Driving on the headlandsFor driving on the headlands, the moweris only raised or lowered by the hydrauliccylinder of the mower unit. The lockingdevice for lifting the mower unit must notbe activated.321To adjust the lowering speed of the mower unit, anadjustable throttle (1) is attached to the shut-off valve(2) of the hydraulic cylinder (3).AMS-0-0152.8 Disassembly of the disc mower• Only rest the disc mower on a level and firm surface.• Never disassemble the disc mower when it is in transport position.• The pressure relief spring must only be taken off the retaining bolt when it is not underpressure (transport position).To ensure simple fitting of the disc mower to tractorswith a tail hook, it is advisable to dismantle the rearcompensation spring. To do so, with the disc moweronly in transport position, pull out the linch pin (1) onthe upper retaining bolt (2) of the rear compensationspring. Take off the washer. Pull the compensationspring off the upper retaining bolt and lay it on theresting bracket (4).1234AMS-0-009Open the shut-off valve (1) on the hydraulic cylinder (2)of the disc mower (cf. the dotted position). Operate thecontrol valve on the tractor to lower the mower unitslowly.21AMS-0-00615

Pull off the hydraulic hose.Take off the safety chain of the PTO shaft protectionsleeve. Pull the PTO shaft off the tractor shaft and lay iton the PTO shaft support bracket (1).Take the control cable off the tractor.Uncouple the disc mower from the upper link arm andlower link arm of the tractor.1AMS-0-0362.9 Safety measures before mower operation• Only carry out work on the mower unit once the PTO shaft has been switched off, theengine switched off and the ignition key removed. Secure the tractor againstunintentional operation and rolling away.• Always check protective devices for damage before operation. Replace damagedprotective devices immediately. Risk of injury!• Prop up the cutterbar when raised. Never stand under a suspended load!• Safe operation is only guaranteed if the cutter blades are fitted according to theinstructions.• Always check the mower unit for damaged, missing or worn cutter blades beforeoperation. If necessary, replace cutter blades. The same applies for retainingcomponents.• To prevent unbalanced rotation, only replace missing or damaged cutter blades ascomplete sets.• Never fit cutter blades with different levels of wear to one drum/disc.• Whenever you change cutter blades also check retaining components and replacethem if necessary.• Move guards into position.Heavily damaged linings (see illustration)must be replaced immediately to preventany risk of damage to the cutterbar.ART.NR. 150-039MH-0-00116

To inspect and fit the blades, lift the protective cloth (2).The blades (1) are now freely accessible.Missing and damaged cutter bladescause dangerously unbalanced rotationwhich can lead to serious injuries. Theymust be replaced immediately.21AMS-0-011The material thickness of the retaining bolts must not beless than 12 mm at the weakest point.18mm12mmAMS-0-020To mount the blades, insert the blade (5) between thewear plate (2) and the mower disc (1). Insert the bolt (3)from below through the wear plate, the blade and themower disc. Place the nut and washer assembly (4) onthe bolt from above and tighten it firmly. After assembly,however, it must be possible for the blades to movefreely. Repeat this process for all blades, even on themower drums.34125Cw rotating knife order number 139-889Ccw rotating knife order number 139-888AlternativeRoof shaped knife order number 139-800(for cw and ccw rotation)After fitting the blades, fold the protective cloth downagain.The nut and washer assemblies (4) usedto secure the bolts must not be usedmore than 5 times.4152AM-4-03220

4. Maintenance4.1 Special safety instructions• Repair, maintenance and safety work must only be carried out when the mower drive andthe tractor engine are switched off!• The mower discs run on after they are switched off! Remove the ignition key and takemeasures to prevent the tractor rolling or being inadvertently switched on.• When working on the disc mower in transport position, it is essential to close the transportlocking device (hydraulic valve) on the hydraulic cylinder of the disc mower.• The blades and blade bolts must be checked every day or before each time the mower isswitched on.• Check regularly to ensure that the lower screw-in sections on the tension springs arecompletely screwed in.4.2 GeneralTorque moment M A(if not stated differently).A 5.6O/M 4M 5M 6M 8M 10M 12M 14M 14x1,5M 16M 16x1,5M 20M 24M 24x1,5M 24x2M 27M 27x2M 3029423506.8 8.8 10.9M A (Nm)2,24,57,618373,05,91025494,48,71536726410016085135145210125200215310225 330 425 610 730 1050800110011501450115015501650210012.95,11018438414523525536539071012201350180019502450A8. 8109.AM-0-03421

4.3 Oil level inspection and oil change on the cutterbarAfter raising the cutterbar to transport position, close the shut-off valve on the hydrauliccylinder of the disc mower.Oil level inspectionUnscrew the oil inspection screw (1) of the cutterbar.The oil level in the cutterbar must reach to theinspection hole. Add oil if necessary.Check the oil level regularly every 100 operatinghours.1AMS-4-012Oil changeChange the oil after operating over an area of approx.350 hectares (500 ha - AM 323 S). For the oil quantityand oil brands, refer to the chapter "Technical data".Unscrew the oil draining screw (2) and oil inspectionscrew (1). Collect the used oil (approx. 4 – 7 litres) in asuitable collection vessel.1After the oil has drained, insert the oil draining screwagain with a sealing ring. Fill with new oil up to theinspection hole. Screw in the oil inspection screw with asealing ring.After changing the oil, make sure that theused oil is correctly disposed of!2AM-2-0914.4 Oil level inspection and oil change in the main gearboxThe illustration on the right shows the connection holefor the breather (1), the oil inspection screw (2) and theoil draining screw (3).Oil inspectionUnscrew the oil inspection screw (2). The oil in the maingearbox must reach up to the inspection hole. Add oil ifnecessary.123AMS-0-02322

Oil changeChange the oil after an operating area of approx.350 hectares. For the quantity and type of oil, pleaserefer to the chapter "Technical data".Unscrew the oil draining screw (3) and the oil inspectionscrew (2). Collect the used oil (approx. 0.4 litres) in asuitable collection vessel.After the oil has drained, screw in the oil draining screwwith a sealing ring. Fill with new oil up to the inspectionhole. Screw in the oil inspection screw with a sealingring.123After changing the oil, make sure that theused oil is correctly disposed of!AMS-0-0234.5 Oil level check and oil change in thegearbox of the carrier armThe illustration alongside shows the connection hole forbreather (1), oil level check plug (2) and oil drain plug(3).Olil level check4Use spirit level (4) to adjust the carrierarm to horizontal positionUnscrew oil level check plug (2). The oil must reach thehole of check plug (2). Fill in fresh oil if necessary.123AMS-1-043Oil changeThe oil has to be changed every 350 hectares. Unscrewoil drain plug (3) and oil level check plug (2). Collect theoil (approx. 0,5 litres) in an appropriate container. Afterthe oil has been drained off, drive home the oil drainplug again. Fill fresh oil up to the hole of the oil levelcheck plug and re-install the check plug. For the oilquantity and quality see the chapter "Technical Data".23

4.6 Protective coversThe protective frame and protectivecovers provide protection from objectsthat may be thrown up. They alsoprevent accidental contact with therotating blades.The protective cloth covers must be checked regularly.Worn or damaged cloth covers must be replacedimmediately!Safety first! Take no risks!Do not experiment with imitation parts!Use only original KRONE replacementparts!AMS-0-0264.7 LubricationPTO shaftThe lubrication intervals of the PTO shaft can be seenin the illustration. Further information can be found inthe operating manual of the PTO shaft manufacturer.8h20h8h40h40hAMS-1-0484.8 Maintenance of the safety break-awayThe safety break-away (1) must be maintained at leastonce a year. To do this release and remove spring (2),pull safety break-away (1) apart and clean the contactsurface of both chamfered portions. Then lubricate thechamfered surfaces and re-assemble the safety breakaway.2When adjusting the torque of the safetybreak-away see the section “Adjustmentof the safety break-away “.1AMS-0-05024

Lubrication plan, disc mowers AM 203 S, AM 243 S, AM 243 RS, AM 283 S und AM 323 SThe lubrication points shown below should be lubricated after the number of operating hours shown.50 h10 h10 hAMS-0-01325

5. Winter storage• Store the machine in a dry place. Do not store it near artificial fertilizers.• Clean the machine thoroughly. Dirt attracts moisture and causes corrosion. If you clean the machine with highpressure water jet sprayers, do not direct the water jet at the bearings.• Check moving parts (joints etc.) for freedom of movement. Where it is appropriate, remove them, clean themand check them for wear. If necessary, replace them with new parts!• Oil all joints!• Thoroughly grease the machine.• Grease the protective sleeves of the PTO shaft to prevent them from freezing.• Touch up the paintwork; bare metal must be conserved thoroughly with rust preservative.• Make a list of all replacement parts needed, and order them in good time. It is easier for your KRONE dealerto obtain and fit the necessary parts out of the season. Your machine will then be fully operational for thecoming season.26

6. Start-up after winter storage6.1 General• Wipe off the grease and oil used for conservation.• Completely carry out all steps described in thechapter on maintenance.• Ventilate the overload clutch to release the frictionsurfaces, which may be stuck together.• Once bled the overload clutch has to be releasedby switching on the pto with the mower attached tothe tractor: the universal drive shaft must rotatefreely up to the clutch hub, whilst the mowing discsmust not rotate.• Carefully read the operating instructions again.6.2 Overload clutch - Bypy6.2.1 Preparing the overload clutch for useTotally release the four hex. socket head cap screws(2) using the special key (1) supplied. The thread doesnot extend over the full length of the screws, so theycannot be turned out of the clutch.The clutch is now ready for use.6.2.2 Bleeding the overload clutch of theuniversal joint drive shaftFirmly tighten the hexagon socket head cap screws(2) of the overload clutch at the start of the idle period.This will release the clutch linings from the pressure ofthe cup springs and minimise the risk of sticking. Thedisc clutch is bled. At the start of the next operationhitch the mower to the tractor and switch on the pto:the mowing discs must not rotate. If the discs shouldrotate, the clutch is stuck or rusted and must first bedisassembled (remove linings from the plates and ifnecessary smooth the friction surfaces using emerypaper). Then reinstall the universal drive shaft andproceed as described above.StorageBefore the next idle period (after the campaign orbefore a prolonged period of disuse) the hex. sockethead cap screws have to be tightened firmly again.27

6.3 Overload clutch - WalterscheidUnlocking the Overload Coupling onthe Drive Shaft to the CutterbarThe overload coupling on the cutterbardrive can only be unlocked with the discmower in the transport position. Thecutterbar must be secured with thetransport bracket.123The overload coupling must be unlocked after notbeing used for long periods (e.g. before the start ofharvesting). To do this tighten the nuts (1) on theoverload coupling (2) on the cutterbar drive. Fixthe PTO shaft into place. Turn the blade drum manuallyin either direction. When turned, the discs in the overloadcoupling separate from each other. Loosen the nutsagain after doing this until there is a clearance betweenthe nut and the housing of at least 3 mm.AM-1-080Overload couplingCAUTION: The PTO shaft overload coupling shouldbe ventilated after extended standing periods. Thecoupling plates may become stuck to the frictionplateThe overload coupling protects the tractor and themachine from damage. It is fitted with a fixed startingtorque M R. The torque is stamped on the overloadcoupling housing (2).Ventilate the overload couplingTighten the four nuts (1). Block the machine and turn theoverload coupling by hand. Loosen the nuts again.12KR302336NOTEAlterations made to the overload coupling changethe starting torque. This results in the guaranteebecoming void!Use only original KRONE parts!28

7. AccessorySpecial safety instructions• Repair, service, maintenance and cleaning work may only be carried out once the machine hasbeen shut down.• Turn off engine and remove ignition key.• On completion of maintenance work replace all protective plates and protective devicescorrectly.• Do not allow oil or grease to come into contact with skin.• Contact a doctor immediately if leaking oil causes injury.• Securely prop the lifted machine. Never step under the lifted machine.7.1 High cut skidsThe high cut skids permit the cutting height to bevaried in two steps ( see chapter 3.2 Adjusting thecutting height).For this bolt bracket (4) under the cutterbar (1).Introduce high cut skid (3) into standard skid (2)and bolt it on bracket (4) at the desired height.The two high cut skids have to be installed undereach of the outermost cutting discs.1243AMT-M-00329

AppendixAppendix forDisc mower AM . . . S operating manual• The blades may continue to rotate after the drive has been switched off. Onlyapproach the mower once the working parts have come to a complete standstill.• Only carry out work on the mower unit once the PTO shaft has been switched off,the engine switched off and the ignition key removed. Secure the tractor againstrolling away.• Safe operation is only guaranteed if the cutter blades are fitted according to theinstructions.• Always check the mower unit for damaged, missing or worn cutter blades beforeoperation. If necessary, replace cutter blades. The same applies for retainingcomponents.• To prevent unbalanced rotation, only replace missing or damaged cutter blades ascomplete sets.• Never fit cutter blades with different levels of wear to one drum/disc.• Whenever you change cutter blades also check retaining components and replacethem if necessary.TAKE NO RISKS!Use only original KRONE parts!2. Changing blades on cutter discswith quick-release bladesPush the special tool (1) {blade key} between thecutter disc (4) and leaf spring (3) and press downwith one hand. Guide blade (2) onto retaining boltand allow the blade key to return upwards.4HINWEIS NOTEThere is a holder for the blade key (1) on theassembly stand1 2 3AMS-1-03131

AppendixThe cutter blades can be turnedaround and used on both sides.When cutter blades are missing ordamaged, they must be replaced as acomplete set. This preventsdangerous unbalanced rotation.KRONE139-889KRONE139-888aIf the thickness of the material between the holeand the end of the cutter blade has reduced toless than a = 7 mm, you must replace the cutterblade.KRONEKRONEClockwise blade Order no.: 139 889Anticlockwise blade Order no.: 139 888AMS-1-032alternativroof shaped knife Order no.: 139-800(for cw and ccw rotation)Check the retaining bolt accordingto the instructions each time youchange the cutter blades. In case ofdamaage or wear replace all sets ofcomplete blade holders per cuttingdisc.∅ 15 mm✓min. 3 mmmin. 9 mmAMS-0-03332

Appendix33

34Appendix

Appendix35

. . . konsequent, kompetentMaschinenfabrikBernard Krone GmbHHeinrich-Krone-Straße 10, D-48480 SpellePostfach 11 63, D-48478 SpellePhone +049 (0) 59 77/935-0Fax +049 (0) 59 77/935-339Internet: http://www.krone.deeMail: info.ldm@krone.de10-Aug-2005