KUHN BK230 Operator's Manual

improvements. You will find, as have thousands of owners all over the world, that you have the best that engineering skill and actual field testing can produce. You have purchased a dependable machine, but only by proper care and operation can you expect to receive the performance and long service built into it. This manual contains all the necessary information for you to receive full efficiency from your machine. The performance you get from this machine is largely dependent on how well you read and understand this manual and apply this knowledge. Please DO NOT ASSUME YOU KNOW HOW TO OPERATE AND MAINTAIN YOUR MACHINE before reading this manual carefully. KEEP THIS 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 carefully inspected in the same factory that builds the machine to assure high quality and accurate fitting of any necessary replacements. � About improvements We are continually striving to improve our products. It therefore reserves the right to make improvements or changes when it becomes practical to do so, without incurring any obligations to make changes or additions to the equipment sold previously. � Designated use of the machine BK shredders must only be used for the work for which they have been designed: shredding of plant residues (straw, maize, sunflower, rape) and set-aside land.

� Contents ......................................................................................................................... 2 � Identification of the machine ........................................................................................ 4 Front view......................................................................................................................................... 4 Rear view .......................................................................................................................................... 4 Model identification plate................................................................................................................ 5 Optional equipment ......................................................................................................................... 5 � Safety .............................................................................................................................. 6 Description of symbols used in this document............................................................................ 6 Safety instructions........................................................................................................................... 7 Location and description of safety decals on the machine....................................................... 15 � Machine specifications................................................................................................ 21 Description and glossary.............................................................................................................. 21 Technical specifications................................................................................................................ 22 Required equipment ...................................................................................................................... 23 Sound levels................................................................................................................................... 24 � Putting into service...................................................................................................... 25 Coupling and uncoupling.............................................................................................................. 25 � Instructions for transport............................................................................................ 35 Putting the machine into transport position ............................................................................... 35 Conformity with the road regulations.......................................................................................... 35

Putting the machine into work position ...................................................................................... 36 Adjustments in working position ................................................................................................. 37 Machine use ................................................................................................................................... 41 � Optional equipment......................................................................................................42 Skids ............................................................................................................................................... 42 Hydraulic offset (BK230-280)........................................................................................................ 45 Double skinned plate..................................................................................................................... 47 Spreading deflectors..................................................................................................................... 49 Lengthways transport (BK320)..................................................................................................... 50 Semi-automatic hitch frame (BK320)........................................................................................... 54 � Maintenance and storage ............................................................................................55 Frequency chart............................................................................................................................. 55 Cleaning the machine.................................................................................................................... 56 Lubrication ..................................................................................................................................... 56 Maintenance................................................................................................................................... 60 Storage ........................................................................................................................................... 66 � Limited warranty...........................................................................................................68

$IDENTIFICATION OF THE MACHINE 1. Front view 2. Rear view

Shredders BK 5 3. Model identification plate Please write below the type and serial number of the machine. This information is to be indicated to the dealer for all spare parts orders. Type: BK No: 4. Optional equipment � Kit no. 1556822: Skids (BK230). Kit no. 1556810: Skids (BK280). Kit no. 1556800: Skids (BK320). � Kit no. 1556819: Hydraulic offset (BK230/280). � Kit no. 1556805: Double skinned plate (BK230). Kit no. 1556806: Double skinned plate (BK280). Kit no. 1556825: Double skinned plate (BK320). � Kit no. 1556823: Spreading deflectors (BK230). Kit no. 1556824: Spreading deflectors (BK280). Kit no. 1556839: Spreading deflectors (BK320). � Kit no. 1556828: Lengthways transport (BK320). � Kit no. 1556827: Semi-automatic hitch frame (BK320).

document This symbol indicates a potentially hazardous situation that if not avoided, could result in serious bodily injury. This symbol is used to identify special instructions or procedures which, if not followed strictly, could result in machinery damage. This symbol is used to communicate technical information of particular interest.

� Read and follow the safety instructions Before using the machine, carefully read all the safety instructions in this manual and the warnings placed on the machine. Before starting work, the operator must be familiar with all machine controls, handling devices and their functions. It is too late to learn once work has been started! Never let anyone operate the machine who is not trained to do so. Should you have any difficulties in understanding certain parts in this manual, please contact your KUHN dealer. � Precautions to be taken before carrying out any operations on the machine Before leaving the tractor or before adjusting, maintaining or repairing the machine, disengage the PTO drive, turn off the engine, remove ignition key and wait until all moving parts have come to a complete stop and apply park brake. � Introduction The machine must only be operated, maintained and repaired by competent persons who are familiar with machine 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 public traffic circulation. Designated use of the machine also means following operation, maintenance and repair recommendations given by the manufacturer, and using only genuine spare parts, equipment and 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 than the designated operation is at the risk and responsibility of the operator. The manufacturer is not held liable for any damage or accidents resulting from machine modifications carried out by the operator himself or by a third party without previous written agreement from the manufacturer.

machine Do not 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-protectors, etc.). Make sure that all operating controls (ropes, cables, rods, etc) are placed so that they cannot be set off accidentally, risking accident or damage. Before operating the machine, check tightness of nuts and bolts, particularly on fixing elements (tines, forks, blades, knives, etc). Retighten if necessary. Before operating the machine, ensure that all the safety guards are firmly in place and in good condition. Immediately replace any worn or damaged guard. � Precautions when driving Precision steering, tractor adherence, road holding and efficient braking are influenced by the type of implement, weight, ballast of front axle, ground or road conditions. It is therefore of the utmost importance to be cautious 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 turning corners, paying attention to machine overhang, length, height and weight. Never use a narrow track tractor on very uneven or steeply sloping ground. Never leave the tractor seat while the machine is operating. Carrying people or animals on the machine when working or in transport is strictly forbidden.

Dimensions Depending on the dimensions of the machine, contact the relevant authorities to ensure that it can be legally transported on public roads. If the machine is over the maximum legal size, follow the local regulations for special transports of oversize equipment. Gross weight and weight per axle Check that the tractor's authorized gross weight as well as its lift capacity and maximum weight per axle are not surpassed. If necessary, add ballast weights to the front or to the rear to preserve the steering and braking efficiency. The front axle load (1) must never, under any circumstances, be less than 20% of the tractor's unladen weight. Transport position Before transporting the machine on public roads, place the machine into its transport position, according to the instructions in this manual. Lightings and signallings Before transporting the machine on public roads, ensure that all legally required lightings and signallings are in place. Ensure that lightings and signallings are clean and in good working order. Replace any missing or broken equipment. � Maximum speed Always keep to the legal speed limit for driving a tractor- machine assembly on public roads. Always obey current regulations for driving on roads.

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 hitch points provided for this purpose. Never stand between the tractor and the machine when operating the rear remote control lever of the three point linkage. Do not stand between the tractor and the machine without ensuring that the parking brake is applied. � Hydraulic circuit Beware! The hydraulic circuit is under pressure. Maximum pressure at work: 200 bar. Before connecting hoses to the tractor hydraulics, ensure that tractor and machine circuits are not under pressure. Before disconnecting a hose, depressurize the hydraulic circuit. To avoid making wrong connections, mark hydraulic couplers and corresponding hoses with colours. WARNING! Functions could be reversed (for example: lift/lower) and cause accidents. Regularly check the hydraulic hoses. In case of normal wear, replace the hydraulic hoses every 5 years. Damaged or worn hoses must immediately be replaced. When replacing the hydraulic hoses, make sure to use hoses with the specifications and quality recommended 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 penetrate the skin and cause severe injury. If injured, see a doctor immediately, there could be danger of infection. Before any adjustments, maintenance or repairs are carried out, lower the machine on the ground, depressurize the hydraulics, turn off the engine, remove ignition key and wait until all moving parts have come to a complete stop.

Use only PTO shafts supplied with the machine or recommended by the manufacturer. The protective shield of the tractor PTO stub, the PTO shaft guards and the protective covering of the machine input shaft must always be in place and in good condition. Make sure that the PTO shaft guards are secured with the safety chains provided. Any worn or damaged protection must be replaced immediately. A worn guard or an unprotected PTO shaft can cause a serious or even a lethal accident. Do not wear loose clothing that could be caught in the rotating PTO shaft. Before attaching or removing a PTO shaft, or before doing any work on the machine, disengage the PTO drive, turn off the engine, remove ignition key and wait for all moving parts have come to a complete stop. If the primary PTO shaft is equipped with a slip clutch or a free wheel, these must be fitted on the machine side. Ensure that the PTO shaft is always correctly fitted and locked into place. Before connecting the PTO shaft, ensure that the PTO speed (rotational frequency) and directions of rotation are in line with manufacturer's recommendations. Before engaging the PTO drive, make sure all people and animals are clear from the machine. Never engage the PTO drive when the tractor engine is stopped. When uncoupling the machine, rest the PTO shaft on the support specially provided, and replace protective cover on the PTO stub of the tractor. Read and follow the instructions in the operator's manual provided with the PTO shaft.

When moving the machine from the transport position to the working position and vice versa, make sure that nobody is within the machine pivoting area. � Remote controlled components Danger of crushing and shearing can exist when components are operated by hydraulic or pneumatic controls. Keep away from these danger zones. � Safety decals Safety warning decals to respect, 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 neither pour them down the drain or discard them in any other place where they could pollute the environment. Never throw away or burn a tire. Always take waste to specialized recycling or waste disposal centers.

work Before leaving the tractor or before adjusting, maintaining or repairing the machine, disengage the PTO drive, turn off the engine, remove ignition key and wait until all moving parts have come to a complete stop and apply park brake. Rest the machine on the ground, release the pressure from the hydraulic circuit and leave the machine 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 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 hand (gloves, shoes, goggles, helmet, ear-protectors, etc.). Do not solder, weld or use a blow torch near fluids under pressure or inflammable products. For your own safety and for correct machine operation, only use original manufacturer parts. It is strongly recommended to have your machine serviced by your dealer after each season, especially cutting elements and their fixing devices. � Projection of stones and foreign objects For driver safety, always use a tractor equipped with a cab. Keep the ground to be shredded free from foreign objects. Avoid using the shredder on stony or rocky ground. If this is not possible, take extra safety precautions, such as: - Fit polycarbonate screens inside the tractor cab's side and rear windows, or install narrow mesh guards on their exterior. - Increase the cutting height to avoid contact with stones or rocks. Never start the shredder when there are people nearby.

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 guard plates/covers on the machine help reduce the risks of projection. Therefore, make sure that all mower protection devices are in place and good condition prior to using the machine. Regularly check the condition of the guard plates/covers. Immediatly replace any worn, damaged or missing guard plate/cover. � Precautions for machine use Before using the shredder, inspect shredding tools (knives, rotors) and their attachment hardware in accordance with the instructions given in the present manual. Immediatly replace any worn, damaged or missing guard plate/cover.Before engaging the pto drive, lower the shredder onto the ground. For your safety, only use genuine parts ! Regularly check the condition of the guard plates/covers. 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 have come to a complete standstill. 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. Check the entire machine for any damage before resuming work.

decals on the machine � Location of safety decals

Operating instructions (1) The operator's manual contains all the information 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 the machine, disengage the PTO drive, turn off the engine, remove ignition key and wait until all moving parts have come to a complete stop and apply park brake. 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.

Keep away from the mower knives all the time the engine is running, the PTO drive engaged and the moving parts have not come to a complete stop. Moving elements (5) Do not open or remove guards when the engine is on. Support wheels (6) At work, the support wheels must rest on the ground. During manoeuvres, raise the machine to lift the wheels off the ground.

Never operate in an area where there is a crushing risk before all moving parts have come to a complete stop . Danger of falling (8) Do not ride on the machine. Anchoring point (9) Indicates anchoring points for handling the machine.

Beware of escaping fluids under pressure. See chapter "Safety", Section "Hydraulic circuit". Risk of injuries (11) Before adjusting, maintaining or repairing the machine, wait until all moving parts have come to a complete stop. Risk of being crushed (12) Do not stay between the machine and the tractor.

0 1 : Three-point hitch coupler 2 : Swinging yoke 3 : Hitch pins 4 : Parking stand 5 : PTO shaft support 6 : Central gearbox 7 : Side drive shaft 8 : Roller 9 : Belt guard 10 : Rear hood

BK230 BK280 BK320 Coupling device 3 point, Category 2 Working width 2.30 m (7’7’’) 2.80 m (9’2’’) 3.20 m (10’6’’) Maximum width 2.50 m (8’2’’) 3.00 m (9’9’’) 3.45 m (11’4’’) PTO speed 540 min-1 540 min-1 1000 min-1 1000 min-1 Rotor speed 2083 min-1 1833 min-1 1960 min-1 1758 min-1 Maximum allowable PTO power 57 kW (77 hp) 60 kW (82 hp) 92 kW (125 hp) 103 kW (140 hp) Minimum tractor power 44 kW (59 hp) 54 kW (73 hp) 60 kW (81 hp) Free wheel Inside central gearbox Outer rotor diameter 620 mm (2’) 647 mm (2’1’’) 647 mm (2’1’’) Number of knives Universal knives 52 64 72 Universal knives + long stubble pallets 52+26 64+32 72+36 Universal knives + Straight knives 52+26 64+32 72+36 Hammer knives 26 32 36 Weight including equipment 950 kg (2095 lb) 1020 kg (2249 lb) 1410 kg (3109 lb)

� Roller The roller is recommended for shredding set-aside and pasture land. � Semi-pivoting wheels. The semi-pivoting wheels are recommended for shredding plant residues such as maize, rape or sunflower.

Sound levels have been measured in accordance with the measuring methods as defined in: NF EN 1553 "Agricultural machinery - Self-propelled, mounted, semi-mounted and trailed - Common safety recommendations" Weighted equivalent continuous acoustic pressure level at the driver's seat (closed cabin) L (A) eq: - BK240: 86.5 dB(A). - BK280: 88.5 dB(A). - BK320: 84.0 dB(A). Measured weighed volume level Lw (A) according to standard EN ISO 3744 : 1997 for machines that exceed a pressure of 85dB(A) in the driver's post: - BK240: 106.0 dB(A). - BK280: 116.0 dB(A). Wear ear protectors.

Shredders BK 25 $PUTTING INTO SERVICE 1. Coupling and uncoupling � Description of coupling elements - A PTO shaft 1 3/8’’ - 6 splines. - Attachment configuration category 2. � Preparing the tractor The tractor PTO stub must rotate at a speed of 540 min-1 (BK 230 / BK 280) or 1000 min-1 (BK 280 / BK 320). Hitch pin parallelism Adjust tractor lift rods so that hitch pins are parallel to the ground. The tractor must be fitted with lower link stabilizers.

� Preparing the machine (BK 280) Check the speed preset by the manufacturer through the stickers on the machine. The BK 280 machine is factory preset at a PTO speed of 1000 min-1. Invert drive pulleys to obtain a different machine PTO speed (540 min-1). Inverting the pulleys - Remove 4 bolts (2). - Remove belt guard (1).

Shredders BK 27 - Loosen screw (3). - Loosen the 4 screws (4) that hold the central gearbox. - Loosen counter nut (5). - Loosen adjustment screws (6) and (7) to slacken belts. - Remove the 4 V-belts (9). - Remove 7 bolts (10). - Insert and screw 3 out of the 7 screws in the 3 threaded holes (11). - Remove T-clamp (12). - Remove pulley A. - Repeat procedure on pulley (B). - Invert and reinstall pulleys (A) and (B). Insert screws in threaded holes (11) to extract T- clamps.

- Reinstall T-clamp (12) of pulley (A). - Reinstall the 7 bolts (10). - Tighten screws (10). • Torque: 4.2 daN m (31 lbf ft). - Reinstall T-clamp (12) of pulley (B). - Reinstall the 7 bolts (10). - Reinstall the 4 belts (9). - Turn the adjustment screws (6) and nuts (7) equally until reaching the optimum tension. - Tighten screws (3) and (4). - Tighten counter nut (5). By adjusting (6) and (7) equally, the central transmission shaft is kept parallel to the rotor.

Shredders BK 29 - Using a ruler, check that pulleys are in line (8) - Repeat procedure until perfect pulley alignment is obtained. - Reinstall the belt guard (1). - Reinstall bolts (2). � Coupling the machine - Lower the tractor three-point linkage. - Place the lower links as close as possible under the hitch pins. - Attach the lower links to the hitch pins (1). - Secure with lynch pins. - Attach top link (2). - Lock the upper hitch attachment using lynch pin (3). - Lift the machine using the tractor's lift linkage. - Fold parking stand 4 upwards and lock it in place.

� Primary PTO shaft The tractor PTO stub must rotate at a speed of 540 min-1 or 1000 min-1. Separate the two half 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 butt against the yokes. As a safety measure, a clearance (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 shaft at an angle X exceeding 30°. Make sure that the PTO shaft is correctly adjusted, to avoid premature wear and tear.

Shredders BK 31 Attach PTO shaft guard chain in hole (1) on machine side. � Adjusting the machine Lateral adjustment of the lower links Balance the play on either sides of the lift linkage and lock lower link stabilizers. To avoid serious accidents, the PTO drive shaft guards must be properly in place and fixed with the chains provided. Immediately replace any worn or damaged guard.

Length of the top link - Adjust the height of the lift linkage and the length of the top link until the machine is horizontal or only slightly higher at the front. - Adjust the length of the top link in order to set the swinging yoke (1) at an angle of X = 45° when the machine is in the working position. � HYDRAULIC Connections Connect hydraulic hoses (a) and (b) to the same hydraulic double acting outlet.

Shredders BK 33 � Uncoupling the machine From the working position: - Lower and lock parking stand (1). - Lower the tractor three-point linkage to rest the machine on the ground. - Uncouple and place PTO shaft in support (2). - Detach the top link from the machine end (3). - Uncouple the lower links (4). - Lower the tractor three-point linkage. The machine is uncoupled. Park the machine on an even fairly level ground.

� Handling The location of lifting points is indicated by a pictorial Part no. 0018661. Use lifting points (1). When lifting this equipment, use appropriate lift straps, chains or any other equipment, in perfect working order, complying with safety standards in force for this type of equipment, and with capacities that exceed the total weight of the unit, as listed in this manual: - BK230: 950 kg (2095 lb). - BK280: 1020 kg (2249 lb). - BK320: 1410 kg (3109 lb).

Shredders BK 35 $INSTRUCTIONS FOR TRANSPORT 1. Putting the machine into transport position From the working position: Lift the machine with the tractor's three point linkage. If the machine is equipped with semi-pivoting wheels: - Lock semi-pivoting wheels: • Secure pin (1) using R-clip. The machine is in transport position. 2. Conformity with the road regulations Check that the signalling panels are clean and that the lighting equipment functions before going on public roads. Before placing the machine into transport position: - Wait until the rotating parts have come to a complete stop. - Check that nobody is within the machine pivoting area. - If there is someone, make sure the person moves away. Never engage the tractor PTO drive when the machine is in transport position. Before driving the machine on public roads, ensure that the machine complies with current highway code regulations.

$INSTRUCTIONS FOR WORK 1. Putting the machine into work position From the transport position: If the machine is equipped with semi-pivoting wheels: - Unlock semi-pivoting wheels: • Unlock and remove pin (1). • Fit pin in its holder. • Secure pin (1) using R-clip. - Lower the tractor's lift linkage until the rear support unit touches the ground. The machine is 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.

Shredders BK 37 2. Adjustments in working position � Working height The working height is set by the position of the rear support unit. With roller (Compulsory equipment): - Slightly lift the machine from the ground. - Loosen bolts (1) (2) (3). - Remove screw (3). - Proceed the same way on the other side. - Position roller in holes corresponding to the required adjustment. - Reinstall screw (3). - Tighten screws (2) and (3). • Torque: 13.5 daNm (99 lbf ft). - Torque bolts to (1) • Torque: 21 daNm (155 lbf ft). The cutting tools must never touch the ground. Relationship between the working height and the roller position: - Hole (1) = 20 mm (0.8’’). - Hole (2) = 50 mm (2’’). - Hole (3) = 84 mm (3.3’’).

With semi-pivoting wheels (Compulsory equipment): - Slightly lift the machine from the ground. - Loosen screw (1). - Remove screw (2). - Position wheel arm in hole corresponding to the required setting. - Reinstall and tighten screw (2). • Torque: 21 daN m (155 lbf ft). - Tighten screw (1). • Torque: 21 daN m (155 lbf ft). With skids (Optional equipment): - Slightly lift the machine from the ground. - Remove bolts (1). - Remove screw (2). - Position work skid in hole corresponding to the required setting. - Reinstall and tighten screw (2) • Torque: 21 daN m (155 lbf ft). - Tighten screw (1) • Torque: 21 daN m (155 lbf ft). - Tighten screw (3) • Torque: 5 daN m (37 lbf ft). Relations between the working height and the position of the wheels: - Hole (1) = 20 mm (0.8’’). - Hole (2) = 65 mm (2.6’’). - Hole (3) = 110 mm (4.4’’).

Shredders BK 39 � Height of the tractor's lift linkage - Lower the 3 point lift of the tractor until the rear support element rests on the ground. - Adjust the height of the lift linkage until the machine is horizontal or only slightly higher at the front. This adjustment helps vegetation to enter. Avoid modifying the linkage height to tilt the machine frontwards. When tilting the rear part of the machine downwards, there is an increased risk of material being ejected towards the operator.

� Rear hood In fields with many plant residues, it it possible to work with the rear hood in opened position. - Remove 3 bolts (1). - Open hood. - Insert screws (2) and tighten nuts to secure hood in open position. • Torque: 8 daN m (59 lbf ft). On the BK320, the machine must be fitted with side guards to work with the rear hood in opened position. (See chapter: "Optional equipment", Section "Spreading deflectors"). To work with an open hood, follow below safety instructions: - Keep at 50 m (164’) from roads and houses. - Stop the machine when there are people or animals in the area. - Switch on the tractor's flashing light to indicate the machine is in operation.

Shredders BK 41 3. Machine use � Groundspeed Adapt the forward speed to the working conditions. Before shredding: Keep all persons and animals away from the machine danger zone. This zone is defined by a radius (R) of 50 m (164’) around the working line of the machine. If using a tractor with a cab that is not sound- proofed or pressurized, the operator must use individual protection equipment: Ear protections, if the noise exceeds normal exposure limits. Anti-dust mask if working in very dry conditions or when large quantities of dust are lifted. If the machine starts vibrating oddly during work,immediately stop and check the condition of the rotor, the cutting tools and the balancing ballast. Excessive vibration can cause physical harm to the user. The top link is in floating position during work to provide good ground adaptation in irregular grounds.

Kit no. 1556810 (BK280) Kit no. 1556800 (BK320) Use skids on irregular grounds, they ensure a steady working height and prevent contact between the shredding tools and the ground. � Mounting and adjustment Slightly lift machine off the ground using an adapted lifting device. When semi-pivoting wheels are fitted: - Remove original bolts and nuts (1). - Remove nut and washer (2). - Insert screws (1). - Position skid in holes corresponding to the required adjustment. Relations between the working height and the skid position: - Hole (1) = 20 mm (0.8’’). - Hole (2) = 30 mm (1.2’’). - Hole (3) = 50 mm (2’’).

• Torque (2): 5 daN m (37 lbf ft). • Torque (1): 21 daN m (155 lbf ft). - Check that the 2 skids are set identically. When a roller is fitted: Remove nut and washer (1). - Remove original bolts and nuts (1). - Remove nut and washer (2). - Insert screws (1). - Position skid in holes corresponding to the required adjustment. Proceed the same way on the other side.

• Torque (2): 5 daN m (37 lbf ft). • Torque (1): 21 daN m (155 lbf ft). Check that the 2 skids are set identically. Relations between the working height and the skid position: - Hole (1) = 20 mm (0.8’’). - Hole (2) = 30 mm (1.2’’). - Hole (3) = 50 mm (2’’). Proceed the same way on the other side.

Kit no. 1556819 The hydraulic offset can be used to offset the machine up to 400 mm (1’3’’). � Fitting In parking position: - Block machine with wooden chocks (1). - Attach a sling between the hitch frame and a lifting device. - Raise the lifting device to tension the sling. - Remove 6 bolts (3). - Remove hitch frame. When lifting this equipment, use appropriate lift straps, chains or any other equipment, in perfect working order, complying with safety standards in force for this type of equipment, and with capacities that exceed the total weight of the unit, as listed in this manual: - BK230: 950 kg (2095 lb). - BK280: 1020 kg (2249 lb).

hydraulic offset (1) opposite attachment holes. - Position parking stand (2) opposite attachment holes. - Mount offset cylinder in points (4) and (5). - Reinstall the 6 bolts (3). - Reinstall washers and nuts. • Torque: 13.5 daN m (99 lbf ft). - Couple the machine to the tractor: See section ’’Coupling the machine’’. � Hydraulic connection Connect hydraulic hoses (a) and (b) to a double acting outlet. � Machine use Activate offset cylinder to offset the machine sideways by 400 mm (1’3’’) or put the machine in line with regards to the tractor. � Maintenance Every 8 hours Grease: - The slide tube.

Kit no. 1556805 (BK230) Kit no. 1556806 (BK280) Kit no. 1556825 (BK320) � Fitting In parking position: - Remove 3 bolts (1). - Open hood. - Insert screws (2) and tighten nuts to secure hood in open position. • Torque: 9 daN m (67 lbf ft). - Position double skinned plate (1) opposite the holes. - Insert screws (2). - Tighten nuts (3). • Torque: 5 daN m (37 lbf ft).

- Close hood. - Tighten screws (1). • Torque: 9daN m (67 lbf ft).

Kit no. 1556823 (BK230) Kit no. 1556824 (BK280) Kit no. 1556839 (BK320) The deflectors are used to spread the shredded material inside the area worked. � Fitting the side guards (BK320) In parking position: - Remove 3 bolts (1). - Open hood. - Insert screws (2) and tighten nuts to secure hood in open position. • Torque: 9 daN m (67 lbf ft). - Fit the 2 side guards by inserting the 4 screws in holes (3). - Tighten nuts. • Torque: 9 daN m (67 lbf ft). � Fitting the deflectors - Insert screws (4) in hood holes. - Tighten screws. • Torque: 5 daN m (37 lbf ft). For fitting the deflectors on the BK320, the side guards must already be mounted on the hood.

Kit no. 1556828 (BK320) � Fitting the front wheel - Position support (1). - Install 6 bolts (2). - Tighten screws (2). • Torque: 9 daNm (67 lbf ft). - Position wheel arm (3) on pivot pin(4). - Slide washer (5) on pivot pin (4). - Insert bolt and nut (6) in pivot pin (4). - Tighten screw (6). • Torque: 5 daNm (37 lbf ft). - Insert pivot pin (7) in hole corresponding to the working position (A). - Lock pin using lynch pin (8). � Fitting the rear right wheel - Remove pin (1). - Remove pin (P). - Remove wheel arm (2). - Remove the 4 nuts (3). - Remove arm support (4). - Fit support (5). - Insert the 4 nuts (3). - Tighten nuts (3). • Torque: 21 daNm (155 lbf ft). - Fit arm support (6) on pivot pin (7). - Slide washer (8) on pivot pin (7). - Insert bolt and nut (9) in pivot pin (7). - Tighten screw (9). • Torque: 5 daNm (37 lbf ft). - Insert pivot pin (10) in hole corresponding to the working position (A). - Lock pin using lynch pin (11). - Reinstall wheel arm (2). - Reinstall and tighten pivot pin (P). • Torque: 11.5 daNm (85 lbf ft). - Reinstall and lock pin (1).

- Position coupling yokes (1), (2) and (3) in corresponding holes. - Insert spacers (S) of thickness 10 mm between coupling yokes and frame. - Fit and tighten the 10 screws (4). • Torque: 21 daNm (155 lbf ft). - Reinstall and lock pin (5). - Insert drawbar (T) in coupling yokes (1) and (2). - Fit and tighten the 2 screws (6). • Torque: 21 daNm (155 lbf ft). - Insert and lock the 2 pins (7) in holes (A) corresponding to the working position. - Place tie rod ball joint (8) on yoke (9). - Reinstall and lock pin (10). - Insert tie-rod (8) in support (11). - Insert parking stand (12) in support (13). - Lock parking stand using pin (14).

From the working position: - Take hold of handle (1). - remove pin from hole (A). - Lower wheel. - Insert and lock pin in hole corresponding to the transport position (B). - Take hold of wheel arm (3) of rear right wheel. - Remove pin (4) from hole (A). - Lower wheel. - Insert and lock pin in hole corresponding to the transport position (B). - Remove pin (5). - Take hold of drawbar (T). - Remove the 2 pins (6). - Lower drawbar (T).

- Reinstall and lock pin (5). - Remove pin (9). - Place parking stand (10) in vertical position. - Reinstall and lock pin (9). - Lower the tractor three-point linkage. - Remove the machine from the tractor. - Adjust drawbar (11) height by turning handle (12). - Attach towing hook (11) to the tractor linkage. - Raise parking stand using handle (12). - Remove pin (9). - Place parking stand (10) in horizontal position. - Reinstall and lock pin (9).

Kit no. 1556827 � Coupling the machine - Remove machine attachment crossbar. - Fit tractor lower links 2 to the 2 attachment crossbar pivot points, insert hitch pins and lock using R-clip (3). - Position and lock the linkage crossmember on the two lower lifting arms. - Lower the tractor three-point linkage. - Position attachment crossbar (1) underneath coupling yokes. - Lift lower links until they come into contact with the coupling yokes. - Insert and lock pins (2). - Attach top link (4). - Lock the upper hitch attachment using lynch pin (5). - Lift the machine using the tractor's lift linkage. - Fold parking stand 6 upwards and lock it in place.

Shredders BK 55 $MAINTENANCE AND STORAGE 1. Frequency chart Before adjusting, maintaining or repairing the machine, turn off ignition key and wait until all moving parts have come to a complete stop. After the first 30 hours of use Every 8 hours Every 20 hours Every 50 hours Every 250 hours or at the end of the season Oil change: - Central gearbox � � Grease: - Universal joint � - PTO shaft tubes � - The PTO shaft guiding bushes � - The sliding tube of the BK230-280 hitch frame with hydraulic offset � - The wheel pins �

2. Cleaning the machine Regularly clean the rotor and the machine inner panels. 3. Lubrication The pictorials show the points to be greased Part no. 0011999. Clean grease zerks before greasing � PTO shaft Primary PTO shaft - Every 8 hours: • universal joints (1). - Every 20 hours: • transmission tube (2). - Every 50 hours: • guide rings (3). Lubricate with SHELL multi-purpose grease grade NLGI 2.

Shredders BK 57 � Central gearbox draining - Park the machine on an even fairly level ground. - Remove filler plug (1). - Place a container of sufficient capacity under drain plug. - Remove drain plug (2). - Allow oil to drain completely. - Wait for dripping to stop. - Clean and reinstall drain plug (2) and its washer. Replace if necessary. - Pour the correct oil quantity and quality through the opening of the filler plug. - Reinstall filler plug (1). - Check central gearbox oil level. Before draining oil, operate the machine for a few minutes so that the oil warms up. The main gearbox is lubricated with SHELL SPIRAX A extreme-pressure gear oil with viscosity grade 80W90 and API grade GL5. Central gearbox GB: - BK230: 2.4 L (0.63 US gal lb). - BK280: 2.8 L (0.74 US gal lb). - BK320: 3.2 L (0.85 US gal lb). Central gearbox BONDIOLI: - BK230: 1.4 L (0.36 US gal lb). - BK280: 1.8 L (0.47 US gal lb). - BK320: 2.4 L (0.63 US gal lb). When draining it is recommended to use: For normal use: - A mineral base oil with viscosity grade SAE 80W90 or 85W140 and API grade GL5 (SHELL SPIRAX A 80W90 or SHELL SPIRAX A 85W140). For intensive use: - A synthetic base oil, type PAO (Poly-Alpha-Olefins) with a viscosity grade equivalent to SAE 80W90 or 85W140 and API grade GL5 (SHELL SPIRAX ASX 75W90).

� Checking the oil levels Check central gearbox oil level: - Remove level plug (1). - The oil level must reach lower part of level plug hole. - Reinstall level plug (1). Place the machine on flat horizontal ground.

Shredders BK 59 � Grease - The wheel pins (1). - The sliding tube of the BK230-280 hitch frame with hydraulic offset (2). The pictorials show the points to be greased Part no. 0011999.

4. Maintenance � Check cutting tools and their fixing elements Cutting tools: Universal knives (1) Part no. J2555004 (2x) Universal knives (1) and long stubble pallets (2) (1) Part no. J2555004 (2x) (2) Part no. J1551147 Hammer knives (3) Part no. 6061699 Universal knives (1) and Straight knives (4) (1) Part no. J2555004 (2x) (4) Part no. J1551000

Shredders BK 61 Check cutting tools before each use in order to: • ensure shredding quality. • guarantee safety in use. • avoid risk of damaging the fixing elements. Replace cutting tools in the following cases: - Damaged cutting tools: • Very uneven ground can cause the knives to crack or warp. - Important wear. Universal knives - The length (L1) of the universal knives must exceed 150 mm (5.90’’). - Ovalisation of the mounting hole L2 must not exceed 27 mm (1.06’’). Hammer knives - The cutting tool length L1 must exceed 150 mm (5.90’’). - Ovalisation of the mounting hole L2 must not exceed 27 mm (1.06’’). Fixing elements Check the condition of the fixing elements regularly and also the torque of the knife-fixing bolt. • Torque: 25 daN m (185 lbf ft). Check the fixing elements: • After hitting an obstacle. • When knives are replaced. • At the start of each season. The fixing bolts should be changed in the following cases: • When there is visible warping. • When the thread is damaged or worn. • When a groove (H) of over 2 mm (0.08’’) has developed.

� Replacing knives and pallet knives From the transport position: Uncouple PTO shaft on machine side. - Partial replacement: • Replace damaged or worn knives. • Replace the knives that are diametrically opposite to maintain the existing balance. • Check that there is still 1 to 2 mm (0.04’’ - 0.08’’) mm play between the pair of knives and the supports. - Total replacement: • Weigh cutting tools. • Pair up equally weighted cutting tools so that they can be placed diametrically opposite. • Fit the knives according to the direction of travel of the machine. • Check that there is still 1 to 2 mm (0.04’’ - 0.08’’) mm play between the pair of knives and the supports. - Checking the balance: • Couple PTO shaft on machine side. • Slightly lift the machine from the ground. • Start the PTO drive and increase speed progressively up to a steady speed of 540 min-1 or 1000 min-1. • When mounted correctly, the rotor must rotate without causing the machine to vibrate. Immediately replace worn or damaged parts with genuine KUHN parts. Replace self-locking nuts after each removal operation: Torque: 25 daN m (185 lbf ft). Put the lighter pairs in the center of the rotor and the heavier pairs to the edges.

Shredders BK 63 � Belt tension Checking the tension: Through the belt guard slot: - Apply a force of 35 daN (7.7 lb) on the belt: the belt should not deflect more than H = 7 mm (0.3’’). Check belt tension: After the first 3 hours of use.

Adjusting the tension: - Remove 4 bolts (2). - Remove belt guard (1). - Loosen screw (3). - Loosen the 4 screws (4) that hold the central gearbox. - Loosen counter nut (5). - Turn the adjustment screws (6) and nuts (7) equally until reaching the optimum tension. - Tighten screws (3) and (4). - Tighten counter nut (5). - Using a ruler, check that pulleys are in line (8) - Repeat procedure until perfect pulley alignment is obtained. Replace belts, if proper tension can no longer be obtained. BK230:Part no. J0019026. Quantity: 4. BK280:Part no. JX001916. Quantity: 4. BK320:Part no. J0019026. Quantity: 5. By adjusting (3) and (4) equally, the central transmission shaft is kept parallel to the rotor.

5. Storage � At the end of each season Clean the machine thoroughly: - The rotor. - The inner panels. - Rotor housings. - Roller housings. • Remove side guards and upper guard. Touch up paint if necessary. Put the machine under cover in a dry place. Check the condition of the fixing elements regularly and also the torque of the knife-fixing bolt. Replace if necessary. Slacken V-belts and check their condition. � At the start of each season - Read through the operator's manual again. - Check that the machine is greased. - Check all the knives and fixings, and replace if necessary. - Check that all nuts and bolts are sufficiently tightened. - Retension V-belts. - Check belt guard condition and if it is firmly secured in place. - Make sure that all protection devices are in place and good condition. 6. Machine recycling In case of recycling, the machine will have to be recycled in conformity with the legislation in force in the country concerned. Prior to proceeding with the recycling, remove all plastic or rubber parts, electric or electronic equipment. Collect possible residual oil and give it to an appropriate processing center. Parts only made up of plastic, aluminium, steel can be recycled if they are collected by an appropriate center.

Shredders BK 67 $TROUBLE SHOOTING GUIDE � Problem � Cause � Remedy Excessive vibrations. - Breakage or excessive wear of knives or hammer knives. - Knife or hammer knife jamming on the pivot point. - Incorrect rotor balance. Replace worn or damaged parts. Clean and grease pivot points. Check weight of knives and hammer knives. Poor cutting quality due to a drop in the rotor speed. - insufficient belt tension. - Excessive belt wear. Adjust belt tension. Replace belts. Belt overheating. - insufficient belt tension. - the angle gearbox axle is no longer in line with the rotor axle. Adjust belt tension. Check alignment. Angle gearbox overheating. - Lack of oil. - No oil. Top up until proper oil level is reached. Fast knife or hammer knife wear. - Working position too low, interference with the ground. Adjust working height. Drive shaft oil loss on the belt side. - Seal wear or breakage. Replace seal. Distortion of roller or wheel supports. - the roller or wheel supports have been subject to lateral forces. Raise machine off the ground when inverting the direction of travel or steering the wheels. Distortion of the front pivoting safety flaps. - The machine has been lowered onto the residues to shred from the raised position (transport position). The machine must be in working position before coming into contact with the residues to shred. Rotor jamming during work. - Clogging due to foreign bodies (example: wire, plastic material). Put on gloves and remove foreign bodies with adequate tools.