KUHN HR 4004 D Operator's Manual
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KUHN HR 4004 D Operator's Manual

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OPERATOR'S MANUAL
KN208BGB A
Power harrows
KN208BGB A
- English - 08-2010

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Summary of Contents for KUHN HR 4004 D

  • Page 1 OPERATOR'S MANUAL KN208BGB A Power harrows KN208BGB A - English - 08-2010...

  • Page 3: Dear Owner

    HR4004D - 4504D $Dear Owner In buying a Kuhn machine you have chosen wisely. Into it have gone years of thought, research and improvement. 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.

  • Page 4: Table Of Contents

    Power harrows HR4004D - 4504D $Contents Dear Owner ........................1 Contents .........................2 Identification of the machine..................4 Front view............................4 Rear view............................4 Model identification plate ........................5 Optional equipment..........................6 Safety..........................8 Description of symbols used in this document................8 Safety instructions ...........................9 Location and description of safety decals on the machine ............18 Road safety equipment and recommendations................21 Machine specifications ....................22 Description and glossary.......................22...
  • Page 5 Power harrows HR4004D - 4504D Instructions for work ....................45 Putting the machine into work position ..................45 Adjustments in working position....................45 Machine use............................ 46 Optional equipment ..................... 48 Sets of gearwheels......................... 48 Standard linkage ..........................50 Hydraulic lift linkage ........................51 Hydraulic lift linkage stroke limiters.....................

  • Page 6: Identification Of The Machine

    Power harrows HR4004D - 4504D $Identification of the machine 1. Front view 2. Rear view Identification of the machine...

  • Page 7: Model Identification Plate

    Power harrows HR4004D - 4504D 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. HR4004D / HR4504D Type: HR4004D / HR4504D Serial no.: Identification of the machine...

  • Page 8: Optional Equipment

    Power harrows HR4004D - 4504D 4. Optional equipment Tick box corresponding to the equipment fitted on your machine: HR4004D / HR4504D Kit no. 1238930: Set of gearwheels (30 and 35 teeth matching gears). Kit no. 1238700: Set of gearwheels (27 and 38 teeth matching gears). Kit no.
  • Page 9 Power harrows HR4004D - 4504D HR4004D Kit no. 1238850: Track eradicator mounting yokes. Kit no. 1238680: Front or rear levelling bar. HR4504D Kit no. 1238850: Track eradicator mounting yokes. Kit no. 1238690: Front or rear levelling bar. Identification of the machine...

  • Page 10: Safety

    Power harrows HR4004D - 4504D $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 11: 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 12 Power harrows HR4004D - 4504D 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 13 Power harrows HR4004D - 4504D 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 14 Power harrows HR4004D - 4504D 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) Load on rear axle (Tractor + machine) t1 max Maximum load authorized on the tractor front axle according to the tires...
  • Page 15 Power harrows HR4004D - 4504D 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 16 Power harrows HR4004D - 4504D 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 17 Power harrows HR4004D - 4504D condition. Make sure that the PTO shaft guards are secured with the safety chains provided. Any worn or damaged guards 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.
  • Page 18 Power harrows HR4004D - 4504D Waste disposal Respect the environment! Never spill pollutants (oil, grease, filters, etc.) on the ground, never pour them down the drain and never discard them in any other place where they could pollute the environment. Never throw away or burn a tyre.
  • Page 19 Power harrows HR4004D - 4504D 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 20: Location And Description Of Safety Decals On The Machine

    Power harrows HR4004D - 4504D 3. Location and description of safety decals on the machine Location of safety decals HR4004D / HR4504D Safety...
  • Page 21 Power harrows HR4004D - 4504D 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 tractor...
  • Page 22 Power harrows HR4004D - 4504D Do not step on the machine (5) Do not step on the machine: Risk of falling or damaging the protection device. Safety...

  • Page 23: 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 24: Machine Specifications

    Power harrows HR4004D - 4504D $Machine specifications 1. Description and glossary Gearbox Roller Scraper bar Anti-ridging plate Side deflector Blade lower links Blade holder PTO shaft 10 : Trough Machine specifications...

  • Page 25: Technical Specifications

    Power harrows HR4004D - 4504D 2. Technical specifications HR4004D HR4504D Coupling device 3 point linkage category 2 and 3 PTO speed 1000 min Number of rotors Number of blades right / left 14 / 14 16 / 16 Working width 4.00 m (13’1’’) 4.50 m (14’9’’) from 30 to 250 mm (1.2’’...

  • Page 26: Required Equipment

    Power harrows HR4004D - 4504D 3. Required equipment Intermediate PTO shaft The machines are factory fitted with one of the following PTO shafts: (Part no. 4600547) 1 3/8’’ - 6 spline pto shaft. (Part no. 4600548) 1 3/8’’ - 21 spline pto shaft. (Part no.
  • Page 27 Power harrows HR4004D - 4504D Available as spare parts: Part no. K2502040 and Part no. K2502050 Left and right long blade (special for potatoes). Rollers The roller is used as a protection device at the rear of the machine. It must never be removed for work.
  • Page 28 Power harrows HR4004D - 4504D Packer PK2 roller: HR4004D: Part no. 1237030 HR4504D: Part no. 1237040 The Packer PK2 roller is adapted to soils which are subject to capping or very clayey and sticky. The roller is fitted with a scraper bar. Scraper plates are located between the rows of studs to ensure roller cleaning.

  • Page 29: Sound Levels

    Power harrows HR4004D - 4504D 4. Sound levels Sound levels have been measured in accordance with the measuring methods as defined in: NF EN ISO 4254-1 «Agricultural machinery - Safety - Part 1: General requirements» Weighted equivalent continuous acoustic pressure level at the driver's seat (closed cabin) L (A) eq: Tractor only: HR4004D HR4504D...

  • Page 30: Putting Into Service

    Power harrows HR4004D - 4504D $Putting into service 1. Coupling and uncoupling Description of coupling elements Category 3 linkage - 2 step hitch pins diameter 28 mm (1.10’’) and 37 mm (1.45’’) for lower links. - A top link hitch pin diameter 32 mm (1.26’’) (Category - A PTO shaft.
  • Page 31 Power harrows HR4004D - 4504D 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 lower links in accordance with tractor attachment category.
  • Page 32 Power harrows HR4004D - 4504D - Attach top link with hitch pin. When the tractor is fitted with a standard 3 point attachment category 2, use category 2 upper hitch pins Part no. 52596900 (Available as spare part). When the tractor is fitted with a standard 3 point attachment category 3, use category 3 upper hitch pins Part no.
  • Page 33 Power harrows HR4004D - 4504D Intermediate PTO shaft 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. Check the length of the PTO shaft: - Fully raise the machine: •...
  • Page 34 Power harrows HR4004D - 4504D 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 35 Power harrows HR4004D - 4504D Do not re-engage cut-out clutch by simply reducing the PTO speed (rotational frequency). This could cause premature wear of the cut-out clutch due to friction between the cams and their housings. Fitting the cam type cut-out cluch. Fitting of the cam type cut-out clutch to the side gearbox drive shafts is effected by a clamp cone which locates in the drive shaft attachment groove.
  • Page 36 Power harrows HR4004D - 4504D Fitting the cam type cut-out clutch. Regularly check that there is no play between the cam type cut-out clutch and its shaft. With the clamp cone disassembled: - Slide cam type cut-out clutch on shaft and align clamp cone housing with the shaft circular groove.
  • Page 37 Power harrows HR4004D - 4504D 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 38 Power harrows HR4004D - 4504D - 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 are positioned correctly (4): The angled faces of the cams must match the angled slots in the bore of the housing.
  • Page 39 Power harrows HR4004D - 4504D 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 40 Power harrows HR4004D - 4504D Rotor speed adjustment The rotor speed can be adjusted by inverting the standard gearwheels or by using optional gearwheel sets. - Select required rotor speed from the following chart. Refer to the decal fitted on the machine . Putting into service...
  • Page 41 Power harrows HR4004D - 4504D - Reduce top link length to slightly tilt the machine forward. - Remove screws (1) and gearbox cover (2). - Position gearwheels according to the required speed. - Clean and reassemble the unit. Check O-ring is correctly positioned within gearbox cover.
  • Page 42 Power harrows HR4004D - 4504D Adjusting the roller scrapers Standard plate The scraper plates are factory preset on a reference roller. The scraper bar is factory fitted with: - Packer PK2 roller: Non coated plates (Part no. 52532130). - Maxipacker roller: Hard coated plates (Part no.
  • Page 43 Power harrows HR4004D - 4504D 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. The nylon scraper plate is particularly well suited for light, silty or chalky soils, or soils with small amounts of plant residue or stones.
  • Page 44 Power harrows HR4004D - 4504D 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. Loosen the 4 nuts (1).
  • Page 45 Power harrows HR4004D - 4504D Uncoupling the machine Park the machine on an even fairly level ground. When track eradicators are fitted on the machine, they must be raised before parking the machine. - Lower the tractor three-point linkage to rest the machine on the ground.

  • Page 46: Instructions For Transport

    Power harrows HR4004D - 4504D $Instructions for transport Before placing the machine into transport position: Wait until the rotating parts have come to a complete stop. 1. Putting the machine into transport position The transport position is obtained by raising the tractor's three-point linkage.

  • Page 47: Instructions For Work

    Power harrows HR4004D - 4504D $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 48: Machine Use

    Power harrows HR4004D - 4504D 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 49 Power harrows HR4004D - 4504D Groundspeed Groundspeed must be adapted to the encountered working conditions. Instructions for work...

  • Page 50: Optional Equipment

    Power harrows HR4004D - 4504D $Optional equipment 1. Sets of gearwheels With this equipment, additional rotor speeds may be obtained. Kit no. 1238930 Set of 30 and 35 teeth gearwheels. Kit no. 1238700 Set of 27 and 38 teeth gearwheels. Kit no.
  • Page 51 Power harrows HR4004D - 4504D Refer to the decal fitted on the machine . Optional equipment...

  • Page 52: Standard Linkage

    Power harrows HR4004D - 4504D 2. Standard linkage Kit no. 1246020 This equipment allows an additional machine to be coupled. The equipment is composed of: • A mechanical 3-point linkage. Adjustment Overhang: - Loosen bolts (1). - Place lower link (2) in the required position. - Reinstall and tighten screws (1).

  • Page 53: Hydraulic Lift Linkage

    Power harrows HR4004D - 4504D 3. Hydraulic lift linkage Kit no. 1246030 This equipment allows an additional machine to be coupled. This equipment is used to reduce the combination's overhang when fitting an additional machine. The equipment is composed of: •...
  • Page 54 Power harrows HR4004D - 4504D 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 ground: - Before turning off the engine - Before carrying out any maintenance or repair on the...
  • Page 55 Power harrows HR4004D - 4504D Adjustment Categories of linkage: The hydraulic attachment can be adapted for additional machines with a standard linkage category 1 or 2. - Category 1 linkage adaptation: (a) • A = 683 mm (2’2’’). - Category 2 linkage adaptation: (b) •...
  • Page 56 Power harrows HR4004D - 4504D Overhang: The combination overhang can be reduced by 220 mm (8.7’’). Position (a): Factory setting. Position (b): Maximum overhang. Position (c): Minimum overhang. - Remove bolts (1). - Place hydraulic attachment frame (2) in the required position.
  • Page 57 Power harrows HR4004D - 4504D 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 From the working position: - Uncouple the PTO shaft (between the power harrow and the additional machine).

  • Page 58: Hydraulic Lift Linkage Stroke Limiters

    Power harrows HR4004D - 4504D 4. Hydraulic lift linkage stroke limiters Kit no. 1246040 This equipment prevents damage to the PTO transmission shaft when lifting an additional implement which is PTO driven. Adjustment - Couple up the PTO shaft (between the power harrow and the additional machine).

  • Page 59: High Capacity Hydraulic Lift Linkage

    Power harrows HR4004D - 4504D 5. High capacity hydraulic lift linkage Kit no. 1239140 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 3300 daN (7275 lbf) for a tractor pressure of 180 bar (2610 PSI).
  • Page 60 Power harrows HR4004D - 4504D 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 ground: - Before turning off the engine - Before carrying out any maintenance or repair on the...
  • Page 61 Power harrows HR4004D - 4504D Adjustments Attachment brackets: The attachment hooks can be fitted in 3 different positions to obtain best adaptation of the additional machine. - Loosen screw (3). - Remove bolt (2) and nut (1). - Place hook (4) in the required position. - Reinstall bolt (2) and nut (1).
  • Page 62 Power harrows HR4004D - 4504D Hydraulic stroke limiting device: This device prevents damage to the PTO transmission shaft when lifting an additional implement which is PTO driven. Adjustment - Couple up the PTO shaft (between the power harrow and the additional machine). - Lift the combined machine using the rear hydraulic lift linkage: •...
  • Page 63 Power harrows HR4004D - 4504D 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 From the working position: - Remove the hydraulic attachment stroke limiter chain. - Uncouple the PTO shaft (between the power harrow and the additional machine).

  • Page 64: Track Eradicators

    Power harrows HR4004D - 4504D 6. Track eradicators The track eradicators reduce tractor wheel marks in the seedbed. The equipment is composed of: - A set of tine holders • HR4004D / HR4504D: Kit no. 1238850 - A set of 2 track eradicator tines: •...
  • Page 65 Power harrows HR4004D - 4504D The track eradicators are fitted with an overload mechanism should they encounter an obstacle: - With traction bolt overload mechanism: Bolt breaks: Part no. 80131051 Nut: Part no. 80201030 - With spring overload mechanism: The track eradicator automatically resets to its work position after having cleared the obstacle.

  • Page 66: Front Or Rear Levelling Bar

    Power harrows HR4004D - 4504D 7. Front or rear levelling bar HR4004D: Kit no. 1238680 HR4504D: Kit no. 1238690 The levelling bar can be fitted to the front or rear of the machine. Fitting and adjusting the levelling bars. Fit levelling bars so that their angled edges face towards the machine front (direction of travel).

  • Page 67: Front Semi-Automatic Linkage

    Power harrows HR4004D - 4504D 8. Front semi-automatic linkage Kit no. 1237310: Category 2 linkage. This equipment is not recommended when the power harrow is used in combination with a seed drill. Kit no. 1237320: Category 3 linkage. Optional equipment...

  • Page 68: Adaptation Parts For Venta Lc

    Power harrows HR4004D - 4504D 9. Adaptation parts for VENTA LC Kit no. 1286369 This equipment enables integrating a VENTA LC seed drill to the machine. 10. Adaptation parts for VENTA AL and VENTA TI This equipment enables integrating a VENTA AL or VENTA TI to the machine.

  • Page 69: Adaptation Parts For Integra

    Power harrows HR4004D - 4504D 11. Adaptation parts for INTEGRA This equipment enables integrating a INTEGRA seed drill to the machine. Kit no. 1616350 - Floating adaptation guided by the roller (Packer PK2 roller and Maxipacker roller). Kit no. 1616363 - Floating adaptation guided by the roller (Packliner roller).

  • Page 70: Maintenance And Storage

    Power harrows HR4004D - 4504D $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 71: Cleaning The Machine

    Power harrows HR4004D - 4504D 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. - Regularly clean roller and roller scraper bar: In case of clogging, pivot scraper crossbar: Packer PK2 roller: (a)
  • Page 72 Power harrows HR4004D - 4504D Maxipacker roller and Packliner roller: (b) • Unscrew the 7 nuts (1). • Remove the 3 tensioning devices (2). • Slide lever in sleeves (3). • Pivot scraper bar using lever. • Clean and reassemble the unit. Tightening torque: (1) 22 daN m (162 lbf ft).

  • Page 73: Lubrication

    Power harrows HR4004D - 4504D 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 Every 250 hours or at the end of the season: - U-joints (1).
  • Page 74 Power harrows HR4004D - 4504D Trough The trough is lubricated for life with grade NLGI 0 SHELL ALVANIA WR0 semi-fluid grease (extreme pressure). Quantity: - HR4004D: 31 kg (68.3 lb) - HR4504D: 34 kg (74.9 lb) Maintenance and storage...
  • Page 75 Power harrows HR4004D - 4504D Draining: Gearbox Before draining oil, operate the machine for a few minutes so that the oil warms up. The gearbox is lubricated with 6 L (1.58 US gal) of SHELL SPIRAX A extreme-pressure gear oil with viscosity grade 80W90 and API grade GL5.

  • Page 76: Maintenance

    Power harrows HR4004D - 4504D Grease: - Roller bearing housings. 4. Maintenance 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 77 HR4004D - 4504D 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 78 Power harrows HR4004D - 4504D 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 - Clean the blade holder to clear the lynch pin.
  • Page 79 Power harrows HR4004D - 4504D - Replace worn blades. Blade rotating to the left (4): - Standard blade: (Part no. K2500090). - OPTIMIX blade: (Part no. K2501120). - DURAKUHN blade: (Part no. K2502240). - Long blade (special for potatoes): (Part no.
  • Page 80 Power harrows HR4004D - 4504D 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...
  • Page 81 Power harrows HR4004D - 4504D 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 82 Power harrows HR4004D - 4504D - 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 83 Power harrows HR4004D - 4504D - 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. - Grease the input shaft before reassembling all components.

  • Page 84: Storage

    Power harrows HR4004D - 4504D 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. - Put the machine under cover in a dry place.

  • Page 85: Trouble Shooting Guide

    Power harrows HR4004D - 4504D $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 set the machine horizontally Machine tilted to the front or...
  • Page 86 Power harrows HR4004D - 4504D Machine clogging due to Rear levelling bar mounted in ground build up between rotors Remove rear levelling bar wet conditions and levelling bars Incorrectly adjusted or worn out Adjust each scraper plate scraper plates Clean scrapers by pivoting Scrapers jammed by trash them rearwards Incorrect Packer roller...

  • Page 87: Appendix

    Power harrows HR4004D - 4504D $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. Prior to use, check that these conditions are satisfied by making this calculation or by weighing the tractor-machine unit Define the total weight, axle loads, tyre...
  • Page 88 Power harrows HR4004D - 4504D 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. Front tool: 2) Calculation of the minimum rear ballast weight M2 minimum...
  • Page 89 Power harrows HR4004D - 4504D 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 90 Power harrows HR4004D - 4504D 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 91 Power harrows HR4004D - 4504D - T: Axle loads. • Tractor only. Appendix...
  • Page 92 Power harrows HR4004D - 4504D 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. - Measure dimension (b).

  • Page 93: Limited Warranty

    Power harrows HR4004D - 4504D $Limited warranty Limited warranty...
  • Page 94 Power harrows HR4004D - 4504D Limited warranty...
  • Page 95 Power harrows HR4004D - 4504D Limited warranty...

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