KUHN HR6004DR Operator's Manual
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KUHN HR6004DR Operator's Manual

KUHN HR6004DR Operator's Manual

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OPERATOR'S MANUAL
KN210BGB A
Power harrow
KN210BGB A
- English - 06-2010

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  • Page 1 OPERATOR'S MANUAL KN210BGB A Power harrow KN210BGB A - English - 06-2010...

  • Page 3: Dear Owner

    Designated use of the machine The HR6004DR power harrow must only be used for work for which it has been designed: Seedbed preparation on ploughed or unploughed ground. Dear Owner...

  • Page 4: Table Of Contents

    Power harrow HR6004DR $Contents Dear Owner ........................1 Contents..........................2 Identification of the machine..................4 Front view (working position) ......................4 Rear view (working position)......................4 Model identification plate ........................5 Optional equipment..........................6 Safety..........................7 Description of symbols used in this document................7 Safety instructions ...........................8 Location and description of safety decals on the machine ............19 Road safety equipment and recommendations................22...
  • Page 5 Power harrow HR6004DR Instructions for work ....................46 Putting the machine into work position ..................46 Adjustments in working position....................47 Machine use............................ 49 Optional equipment ..................... 51 Set of gearwheels........................... 51 Hydraulic lift linkage ........................52 Track eradicators..........................56 Front and rear levelling bar ......................

  • Page 6: Identification Of The Machine

    Power harrow HR6004DR $Identification of the machine 1. Front view (working position) 2. Rear view (working position) Identification of the machine...

  • Page 7: Model Identification Plate

    Power harrow HR6004DR 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. HR6004DR Type: Serial no.: Identification of the machine...

  • Page 8: Optional Equipment

    Power harrow HR6004DR 4. Optional equipment Tick box corresponding to the equipment fitted on your machine: Kit no. 1237420: Set of gearwheels (19 and 26 teeth matching gears). Kit no. 1237650: Set of gearwheels (17 and 28 teeth matching gears).

  • Page 9: Safety

    Power harrow HR6004DR $Safety 1. Description of symbols used in this 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.

  • Page 10: Safety Instructions

    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...
  • Page 11 Power harrow HR6004DR Precautions to take before using the 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 defenders, etc.).
  • Page 12 Power harrow HR6004DR Precautions when driving on public roads 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 transportation of oversize equipment.
  • Page 13 Power harrow HR6004DR Description of symbols Description Units Description Tractor unladen weight PTAC Gross Combined Weight Rating Unladen load on tractor front axle Empty load on tractor rear axle Axle loads (Tractor + machine) Load on front axle (Tractor + machine)
  • Page 14 Power harrow HR6004DR Stage 2: - Couple the machine to the tractor. To measure: - Load on front axle (t1): • Tractor + machine (transport position). To do: - If the front axle load (t1) is below 20% of the tractor tare (T), add ballast weights (M1) to exceed the minimum load on the front axle.
  • Page 15 Power harrow HR6004DR Stage 4: To measure: - Load on rear axle (t2): • Tractor + machine (transport position). • Ballast weights. Checking: - Check in the tractor's operator's manual that the value measured is below the maximum allowed tractor rear axle load.
  • Page 16 Power harrow HR6004DR 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 hitch points provided for this purpose.
  • Page 17 Power harrow HR6004DR PTO shaft 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.
  • Page 18 Power harrow HR6004DR Precautions during manoeuvres 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.
  • Page 19 For your own safety and for correct machine operation, only use original manufacturer parts. It is strongly recommended to have your machine checked by your Kuhn dealer after each season, especially tools and their attaching hardware. Safety...
  • Page 20 Power harrow HR6004DR Projection of stones and foreign objects For driver safety, always use a tractor equipped with a cab. Never start the machine when there are people nearby. Even when the machine is used in accordance with its purpose, objects may be projected. Stones and other foreign objects projected by the moving parts can travel a considerable distance.

  • Page 21: Location And Description Of Safety Decals On The Machine

    Power harrow HR6004DR 3. Location and description of safety decals on the machine Location of safety decals Safety...
  • Page 22 Power harrow HR6004DR Description of safety decals Operating instructions (1) The operators' 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...
  • Page 23 Power harrow HR6004DR Do not step on the machine (5) Do not step on the machine: Risk of falling or damaging the protection device. Body crushing (6) Stay a safe distance from the machine. Crushing hazard. Safety...

  • Page 24: Road Safety Equipment And Recommendations

    4. Road safety equipment and recommendations The road safety equipment is mounted in the factory or by your authorized Kuhn dealer according to current safety regulations. Always keep to the legal speed limit for driving a tractor-machine assembly on public roads.
  • Page 25 Power harrow HR6004DR Instructions specific to Italy The machine can be fitted with specific signalling lights to comply with the road regulations. Signalling kit Italy: Kit no. 1238390. The machine must be fitted with specific safety screens to comply with the current legislation.

  • Page 26: Machine Specifications

    Power harrow HR6004DR $Machine specifications 1. Description and glossary Lights and indicators Roller Central gearbox Half-harrow Side gearbox Scraper bar Side deflector Anti-ridging plate Lock 10 : Lift cylinder 11 : Intermediate PTO shaft 2 12 : Blade 13 :...

  • Page 27: Technical Specifications

    Power harrow HR6004DR 2. Technical specifications HR6004DR Coupling device Category 3 PTO speed 1000 min Number of rotors Number of blades right / left 20 / 20 Working width (DIN11220) 6.00 m (19’8’’) (approximately) Working depth from 3 to 25 cm (1.18’’ - 10’’) (approximately) Width in working position 6.21 m (20’4’’)

  • Page 28: Required Equipment

    Power harrow HR6004DR Front soil loosening share The front soil loosening share brakes up the strip of land between the two half-harrows. The front soil loosening share is fitted on the lower crossbar of the central frame. 3. Required equipment...
  • Page 29 Power harrow HR6004DR Rollers The roller is used as a protection device at the rear of the machine. It must never be removed for work. The roller is an essential element of the harrow and has the following 4 functions: - Set and control the working depth.

  • Page 30: Sound Levels

    Power harrow HR6004DR Maxipacker roller: Part no. 1238420 The Maxipacker roller is adapted to all soil types and particularly to wet and sticky soils. The roller is fitted with a scraper bar. Scraper plates are located between the rows of studs to ensure roller cleaning.

  • Page 31: Putting Into Service

    Power harrow HR6004DR $Putting into service 1. Coupling and uncoupling Description of coupling elements - 2 hitch pins diameter 37 mm (1.45’’) for the lower link arms. - A top link hitch pin diameter 31 mm (1.22’’). - A PTO shaft.
  • Page 32 Power harrow HR6004DR Parallelism of lower linkage arms Adjust tractor lift rods so that lower linkage arms are at equal height from ground. Coupling the machine - Remove the lower hitch pins. - Position tractor lower links inside machine attachment yokes.
  • Page 33 Power harrow HR6004DR - Attach top link with hitch pin. • Use tractor and machine attachment holes to adjust the top link position. To obtain optimum PTO shaft angles and tractor lift capacity, the top link must be parallel to the lower links or slightly pointing downwards towards the tractor.
  • Page 34 Power harrow HR6004DR Intermediate PTO shaft 1 Make sure that the PTO shaft is correctly adjusted, to avoid premature wear and tear. Separate the two half PTO shafts and connect them to the machine's input shaft and to the tractor PTO stub.
  • Page 35 Power harrow HR6004DR To avoid serious accidents, the PTO drive shaft guards must be properly in place and fixed with the chains provided. Attach PTO shaft guard chain in hole (1) on machine side. Immediately replace any worn or damaged guard.
  • Page 36 Power harrow HR6004DR If a foreign object gets caught in the machine: Before carrying out any maintenance or repairs on the machine, switch off the tractor engine, remove ignition key, wait until all moving parts have come to a standstill and apply park brake.
  • Page 37 Power harrow HR6004DR Fitting the cam type cut-out clutch. Regularly check that there is no play between the cam type cut-out clutches and their shafts. With the clamp cone disassembled: - Slide cam type cut-out clutch on shaft and align clamp cone housing with the shaft circular groove.
  • Page 38 Power harrow HR6004DR Spring cartridge adjustment: - Measure dimension L (Using a vernier caliper). - Note : On first removal of the slip clutch, use Graph below to determine measurement L. The measure L will usually be found to be between 48.9 and 49.7 mm (1.92’’...
  • Page 39 Power harrow HR6004DR - Secure hexagonal (6 faces) head screw (1) of spring cartridge in a vice. - Remove roll pin (2). - Tighten or loosen nut (3). - Reinstall roll pin (2). - Grease all components. - Reinstall the assembly and make sure that the cams...
  • Page 40 Power harrow HR6004DR Adjusting the machine Lateral adjustment of the lower linkage arms - Balance the play on either sides of the lift linkage and lock lower link stabilizers. Front/rear machine levelling Adjust the top link length so that the machine is horizontal with regards to the ground.
  • Page 41 Power harrow HR6004DR Adjusting the rotor speed. The rotor speed can be adjusted by inverting the standard gearwheels or by using optional gearwheel sets. .From the working position: - Remove screws (1) and gearbox cover (2). Position gearwheels according to the chart: Refer to the decal fitted on the machine .
  • Page 42 Power harrow HR6004DR - Clean and reassemble the unit. Check O-ring is correctly positioned within gearbox cover. - Tightening torque: 10 daN m (74 lbf ft). - Proceed the same way on the other gearbox. The rotor speed must be the same for both half-harrows.
  • Page 43 Power harrow HR6004DR Nylon scraper plate - Packer PK2 roller: Nylon scraper plate (Part no. 52570200). - Maxipacker roller: Nylon scraper plate (Part no. 52592300). The nylon scraper plate is permanently in contact with the roller tube for cleaning it.
  • Page 44 Power harrow HR6004DR Adjusting the side deflector For safety reasons, it is not allowed to fold the side deflectors over the trough. The vertical position of the deflector must be adjusted to: - The working depth. - The blade wear.
  • Page 45 Power harrow HR6004DR Uncoupling the machine Check that nobody is within the machine pivoting area: - If there is someone, make sure the person moves away. Park the machine on an even fairly level ground. The machine is parked when the 2 half- harrows rest on the ground.

  • Page 46: Instructions For Transport

    Power harrow HR6004DR $Instructions for transport 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.

  • Page 47: Conformity With The Road Regulations

    Power harrow HR6004DR 2. Conformity with the road regulations Before driving the machine on public roads, ensure that the machine complies with current highway code regulations. Always keep to the legal height limit for driving a tractor-machine assembly on public roads.

  • Page 48: Instructions For Work

    Power harrow HR6004DR $Instructions for work 1. Putting the machine into work 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.

  • Page 49: Adjustments In Working Position

    Power harrow HR6004DR 2. Adjustments 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. Rigid/floating working position. The machine can operate in two ways:...
  • Page 50 Power harrow HR6004DR Working depth The roller provides working depth adjustment and control. Fit the adjustment pin (2) in one of the adjusting plate holes (1) to adapt the working depth. Fit adjustment pins in the same hole on both sides of the machine.

  • Page 51: Machine Use

    Power harrow HR6004DR 3. Machine use Before leaving tractor 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.
  • Page 52 Power harrow HR6004DR Groundspeed Groundspeed must be adapted to the encountered working conditions. Instructions for work...

  • Page 53: Optional Equipment

    Power harrow HR6004DR $Optional equipment 1. Set of gearwheels 2 gearwheel sets are necessary to equip the 2 half-harrows. Kit no. 1237420 Set of 19 and 26 teeth gearwheels. Kit no. 1237650 Set of 17 and 28 teeth gearwheels. Refer to the decal fitted on the machine .

  • Page 54: Hydraulic Lift Linkage

    Power harrow HR6004DR 2. Hydraulic lift linkage Kit no. 1238380 This equipment allows an additional machine to be coupled. The equipment is composed of: • A 3-point hydraulic attachment category 2. Lift capacity of approximately 2500 daN (5620 lbf) for a tractor pressure of 180 bar (2610 psi).
  • Page 55 Power harrow HR6004DR Description of safety decals Crushing area (1) Never operate in an area where there is a crushing risk before all moving parts have come to a complete stop. Additional machine lowering (2) Make sure that the additional machine rests on the...
  • Page 56 Power harrow HR6004DR Stroke limiters: This part has several functions: - Avoid any interference between the machine components during half- harrow folding manoeuvres and when raising the additional machine. - Protect the PTO shaft in case of driven combinations. - Couple up the PTO shaft (between the power harrow and the additional machine).
  • Page 57 Power harrow HR6004DR Parking When parking the power harrow/additional machine unit, make sure that the additional machine is lowered first. Instructions for transport Putting the machine into transport position When stroke limiters are fitted, the half- harrows can be fully folded without risk of interferences with the additional machine.

  • Page 58: Track Eradicators

    Power harrow HR6004DR 3. Track eradicators The track eradicators reduce tractor wheel marks in the seedbed. The equipment is composed of: - A set of tine holders Kit no. 1238870. - A set of 2 track eradicator tines: • With...
  • Page 59 Power harrow HR6004DR The track eradicators are fitted with an overload mechanism should they encounter an obstacle: - With traction bolt overload mechanism: Bolt breaks: (Part no. 80131051). - With spring overload mechanism: The track eradicator automatically resets to its work position after having cleared the obstacle.

  • Page 60: Front And Rear Levelling Bar

    Power harrow HR6004DR 4. Front and rear levelling bar Kit no. 1238370 Levelling bars can be fitted to the front or rear of the corresponding half-harrow. Fitting and adjusting the levelling bars. Fit levelling bars so that their angled edges face towards the machine front (direction of travel).

  • Page 61: Rollers

    Power harrow HR6004DR 5. Rollers The roller is used as a protection device at the rear of the machine. It must never be removed for work. The roller is an essential element of the harrow and has the following 4 functions: - Set and control the working depth.
  • Page 62 Power harrow HR6004DR Maxipacker roller: Part no. 1238420 The Maxipacker roller is adapted to all soil types and particularly to wet and sticky soils. The roller is fitted with a scraper bar. Scraper plates are located between the rows of studs to ensure roller cleaning.
  • Page 63 Power harrow HR6004DR - Remove lynch pin (1). - Remove adjustment pin (2). - Position bush inside the multihole plate (3) in front of the hole thar corresponds to the required setting. - Position adjustment pin (2) in the adjustment plate hole that corresponds to the required setting.

  • Page 64: Maintenance And Storage

    Power harrow HR6004DR $Maintenance and storage Before leaving tractor 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.

  • Page 65: Cleaning The Machine

    Power harrow HR6004DR 2. Cleaning the machine Regularly check that there are no foreign objects wrapped around blade holder(twine, wire, crop residues,...). To prevent premature bearing housing wear, remove foreign bodies wrapped around them. - Regularly check side deflectors. - Keep all transport locks clean.

  • Page 66: Lubrication

    Power harrow HR6004DR 3. Lubrication Except for the secondary PTO shaft lubrication, the machine must be placed in transport position for all maintenance operations. Clean grease nipples before greasing. Lubricate with SHELL multi-purpose grease grade NLGI 2. Intermediate PTO shaft 1 Every 250 hours or at the end of the season: - U-joints (1).
  • Page 67 Power harrow HR6004DR Intermediate PTO shaft 2 Place the machine in working position. Turn off the engine, remove ignition key and wait until all moving parts have come to a complete stop. Every 250 hours or at the end of the season: - Transmission tube: To access the 2 grease nipples (2) to grease.
  • Page 68 Power harrow HR6004DR Trough Each main trough is greased for life with 23 kg (50.7 lb) SHELL ALVANIA WR0 grade NLGI 0 semi-fluid grease. Maintenance and storage...
  • Page 69 Power harrow HR6004DR Draining: The main gearbox Before draining oil, operate the machine for a few minutes so that the oil warms up. The main gearbox is lubricated with 3.75 L (1 US gal) of SHELL SPIRAX A extreme-pressure gear oil with viscosity grade 80W90 and API grade GL5.
  • Page 70 Power harrow HR6004DR Cooling system tank Before draining oil, operate the machine for a few minutes so that the oil warms up. The cooling system tank contains 5.3 L (1.4 US gal) of SHELL SPIRAX A extreme-pressure oil for mechanical transmissions with viscosity grade 80W90 and API grade GL5...
  • Page 71 Power harrow HR6004DR The side gearboxes Before draining oil, operate the machine for a few minutes so that the oil warms up. Each side gearbox is lubricated with 5 L (1.32 US gal) of SHELL SPIRAX A extreme-pressure gear oil with viscosity grade 80W90 and API grade GL5.
  • Page 72 Power harrow HR6004DR Grease: - The 4 roller housing bearings (1). - Cylinder pins (1). - The foldable frame pivot points (2). Maintenance and storage...

  • Page 73: Maintenance

    Power harrow HR6004DR 4. Maintenance Before leaving tractor before adjusting, maintaining repairing 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.
  • Page 74 • The cooling system tank must be filled to the brim. - Clean and replace the oil level cap (1). Replace it if necessary. If the oil level is insufficient, check the whole circuit for a leak and contact your Kuhn authorized dealer. Maintenance and storage...
  • Page 75 Power harrow HR6004DR Side gearbox - Place the machine on level ground. - Remove level plug (1). - Check the oil level. - Top up if necessary. - Clean and replace the oil level cap (1). Replace it if necessary.
  • Page 76 HR6004DR Checking the blades and their mounting hardware Immediately replace worn or damaged parts with genuine KUHN parts. Blades Replace blades in the following cases: - When the degree of wear L reaches 150 mm (6’’). - When there is visible distortion.
  • Page 77 Power harrow HR6004DR Blade replacement Before leaving tractor 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 From the transport position: Check that locks are engaged.
  • Page 78 Power harrow HR6004DR - Replace worn blades. Blade rotating to the left (4): - Standard blade: (Part no. K2500090). - OPTIMIX blade: (Part no. K2501120). - DURAKUHN blade: (Part no. K2500260). Blade rotating to the right (3): - Standard blade: (Part no. K2500100).
  • Page 79 Power harrow HR6004DR Checking the side deflectors Immediately replace worn or damaged parts with genuine KUHN parts. Side deflectors Replace side deflectors (1) and anti-ridging plates (2) when measure L reaches 20 mm (0.79’’). Side deflector replacement Before leaving tractor...
  • Page 80 Power harrow HR6004DR Oil seal replacement Before removing the blade holder, mark its initial direction to ensure it is refitted correctly. Never remove several blade holders at the same time. Blade holder position Maintenance and storage...
  • Page 81 Power harrow HR6004DR - Clean the blade holder to clear the lynch pin. - Pivot lynch pin ring using unlocking key supplied with the machine (Part no. 52598210). - Remove lynch pin (1). - Remove connecting piece (2). - Loosen screw (3).
  • Page 82 Power harrow HR6004DR - Clean and lubricate oil seal housing. - Fit new oil seal using special tool (8) (Part no. K2501870). The oil seal is in place when tool (8) bottoms against input shaft (9). Note oil seal mounting direction.

  • Page 83: Storage

    Power harrow HR6004DR 5. Storage At the end of each season - Clean the machine with a garden hose. - Check and replace worn or damaged blades. - Check and replace worn or damaged scraper plates. - Touch up any areas of damaged paintwork.

  • Page 84: Trouble Shooting Guide

    Power harrow HR6004DR $Trouble shooting guide Problem Cause Remedy Top link of 3-point hitch badly Position top link parallel to Noisy drive when lifting the positioned/adjusted lower linkage arms machine Excessive lifting height Limit the lift linkage stroke Lengthen or shorten top link to...
  • Page 85 Power harrow HR6004DR Machine clogging due to Rear levelling bars mounted in ground build up between rotors Remove rear levelling bars wet conditions and levelling bars Clogging of the Maxicrumbler Wet conditions, too high load use Packer PK2 roller or...

  • Page 86: Appendix

    Power harrow HR6004DR $Appendix 1. Calculating the load on an axle When coupling a tool to the front and rear 3-point lift linkage, the maximum authorized payload must not be exceeded. The load on the tractor front axle must always represent 20 % of the tractor unladen weight.
  • Page 87 Power harrow HR6004DR Rear tool or front-rear combination: 1) Calculation of the minimum front ballast weight M1 minimum M2 x (c+d) - T1 x b + 0.2 x T x b minimum Write the minimal additional weight in the chart.
  • Page 88 Power harrow HR6004DR Table: Actual value obtained Value authorized Double value of the by calculation according to authorized capacity operator's manual per tyre (2 tyres) Minimum front/rear ballasting kg ≤ Total weight kg ≤ kg ≤ Load on front axle kg ≤...
  • Page 89 Power harrow HR6004DR Determining the machine weight (M2) and the position of its centre of gravity (d) If the data required to calculate the total weight, axle loads and minimum ballasting are not supplied, use the following method. Tractor only: - T1: Load on front axle.
  • Page 90 Power harrow HR6004DR - T: Axle loads. • Tractor only. Appendix...
  • Page 91 Power harrow HR6004DR Rear tool or front-rear combination: If the total unit weight exceeds the tractor Gross Combined Weight Rating in accordance with the countrie's legislation, empty the hopper to travel on public roads. In any case, we recommend to travel on public roads with empty hoppers and tanks.

  • Page 92: Limited Warranty

    Power harrow HR6004DR $Limited warranty Limited warranty...
  • Page 93 Power harrow HR6004DR Limited warranty...

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