Tatu Marchesan GNFH Operator's Manual
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Tatu Marchesan GNFH Operator's Manual

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GNFH
GNFH
OPERATOR'S
MANUAL

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  • Page 1 GNFH GNFH OPERATOR’S MANUAL...
  • Page 2 IDENTIFICATION Dealer: Owner: Firm / Farm: City: State: No. of the Certificate of Guarantee: Serial / No.: Date: Invoice No.: Product: Notes:...
  • Page 3 The GNFH model also features a central articulation in the frame with ideal buoyancy to follow the surface unevenness or even to perform a finishing job on broad-based terraces.

  • Page 4: Table Of Contents

    Wheel support hubs lubrication Hydraulic cylinder maintenance / assembly 53 & 54 Hydraulic safety Disk harrow maintenance Tires inflation 9. Important data 58 to 60 Hourly income calculation Average income table Torque table 10. Important GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 5: To The Owner

    The warranty shall not be applied to any equipment or any part that has been altered elsewhere than at the place of manufacture, or which the original NOTE purchaser thereof at retail has used or allowed to be used parts, not made or supplied by Marchesan. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 6: To The Operator

    This procedure will prevent a possible rupture of any hydraulic hose or breaks on the hitching system, what would make the equipment tilt up. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 7 Any contact may result in severe shocks, injuries or death. For your protection and safety, always wear adequate clothes and footwear while operating the equipment. Always use the safety locks to carry out any maintenance or to transport the equipment. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 8 • If there is any doubt after reading it, ask your dealer. For more complicated operations, there will be the right person to help you there. • Please check the general safety instructions on the back cover of this manual. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 9 • Check all laws and regulations regarding the height limits and load width while transporting the equipment on truck or trailer. If necessary use banners, lights and other devices in order to give adequate warning to the other drivers. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 10 • This Regulatory Standard has the purpose to establish the precept to be applied on the organization and on the working environment, in order to make compatible the planning and development of agriculture, livestock, forestry, forest exploration and aquaculture with safety on the working environment. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 11 Use chains, of at least 3 meters long, to lift the equipment safely. Use the adequate points for lifting and be sure that the equipment is safe. Avoid accidents. Always keep a safe distance from the equipment. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 12 The safety decals warn about the equipment points that require more attention and they should be kept in good repair. If these decals become damaged or illegible, replace them. Marchesan provides decals, upon request and indication of the respective serial number. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 13 To the operator Safety decals Decal set Qty. Model Serial number 05.03.03.4707 GNFH decal Tatu logotype decal 05.03.03.5341 Read the manual decal 05.03.03.1428 Opening/closing the disc gangs decal 05.03.03.4438 05.03.03.1739 Danger decal 05.03.03.1827 Lubricate and retighten daily decal Danger decal 05.03.03.3038...

  • Page 14: Data Sheet

    Data sheet Type: ......................Disk harrow Model: ........................GNFH Spacing between disc blades: ................195 mm Disc blades dimension: ........... Ø 20" x 3.5 mm, Ø 20" x 4.5 mm ....Ø 22" x 3.5 mm, Ø 22" x 4.5 mm and Ø 24" x 4.5 mm Number of disc blades: ........
  • Page 15 1100 2400 6465 1200 2555 5525 1100 2400 6860 1200 2555 5920 1100 2400 7230 1200 2555 6290 1100 2400 GNFH 7620 1200 2555 6680 1100 2400 8040 1200 2555 7100 1100 2400 8440 1200 2555 7500 1100 2400 8840...

  • Page 16: Components

    Components GNFH 01 - Front frame 07 - Drawbar set 02 - Rear frame 08 - Hitch clevis 03 - Front disc gang 09 - Transport lock 04 - Rear disc gang 10 - Transport bar 05 - Wheels 11 - Hoses...

  • Page 17: Assembly

    • Use the L-shaped wrench (B) to tighten the nuts of the bearing bolts. • Use the L-shaped wrench (C) to tighten the nuts of the traction set. NOTE We recommend wearing gloves, especially while assembling the disc gangs. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 18: Assembly Of Bearings And Spacer Spools

    Bearing Bearing 12 bearings 12 bearings 36 spacer spools 36 spacer spools Spacer spool Spacer spool NOTE Furrow filler Furrow filler The first and last disc on the rear gang are smaller. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 19 60 disc blades 12 bearings 12 bearings 44 spacer spools 44 spacer spools Spacer spool Spacer spool NOTE Furrow filler Furrow filler The first and last disc on the rear gang are smaller. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 20 Bearing Bearing 16 bearings 16 bearings 44 spacer spools 44 spacer spools Spacer spool Spacer spool NOTE Furrow filler Furrow filler The first and last disc on the rear gang are smaller. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 21 20 bearings 20 bearings Bearing Bearing 48 spacer spools 48 spacer spools Spacer spool Spacer spool Furrow filler Furrow filler NOTE The first and last disc on the rear gang are smaller. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 22 20 bearings 20 bearings 52 spacer spools 52 spacer spools Bearing Bearing Spacer spool Spacer spool NOTE Furrow filler Furrow filler The first and last disc on the rear gang are smaller. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 23 24 bearings 24 bearings 48 spacer spools 48 spacer spools Bearing Bearing Spacer spool Spacer spool NOTE Furrow filler Furrow filler The first and last disc on the rear gang are smaller. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 24: Disc Gangs Assembly Sequence

    Finally, put the bolt (H-1) and position the lock nut (I-1), fastening it with a spring washer and nut. IMPORTANT Check the correct side of the bearings and spacer spools according to the concavity of the disc blades. Grease fitting Grease fitting or plug or plug GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 25 T h e a x l e t h r e a d s ( B ) m u s t b e NOTE 2.1/8" 3300 cleaned and greased before their 2.1/2" 3500 assembly. Check the torque table on the 'important data' section. 3" 4000 GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 26: Assembly Of The Disc Gangs On The Frame

    Put the bolt (A) and a square washer (B), passing through the bearing housing and the bearing hanger holes. On top, put the flat washer and nut. Repeat this operation for other bearings. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 27 On the upper part, place a spring washer and nut. The scrapers feature an adjustment to approach or distance them from the NOTE disc blades, on a range from 5 to 10 mm. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 28: Opening System Assembly

    • Always use thread sealing tape to couple the male quick couplers (I) to the hoses. • The cylinders have depth stops (J), which are placed on their rods and work as course limiters, thus providing several cutting depth adjustments for the disc blades. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 29 Assemble the hose support (F) to the drawbar (D) and to the transport bar (G) using flat washer and nut. Couple the jack (H) to the drawbar using a pin and cotter pin. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 30: Hydraulic Cylinder/Circuit Assembly

    Give a 180° turn on the cylinder barrel to let the ports (A) facing up. NOTE Always use thread sealing tape to couple the male quick couplers to the hoses. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 31 "Blue" "Blue" Return Return "Black" "Black" Lifting Lifting cylinders cylinders "Red" "Red" Pressure Pressure NOTE The wheel support lifting cylinder rods must be directioned to the wheel support side. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 32 Assembly Wheel support hydraulic circuit GNFH with 48 disc blades Item Quantity Description 3/8 X 6120 TR - TM hose Return Return 3/8 X 6120 TR - TM hose Pressure Pressure 3/8 X 600 TR - TR hose Return Return...
  • Page 33 Assembly Wheel support hydraulic circuit GNFH with 60 disc blades Item Quantity Description 3/8 X 6900 TR - TM hose Return Return 3/8 X 6900 TR - TM hose Pressure Pressure Return Return 3/8 X 600 TR - TR hose...
  • Page 34 Assembly Wheel support hydraulic circuit GNFH with 72 disc blades Item Quantity Description 3/8 X 7500 TR - TM hose Return Return 3/8 X 7500 TR - TM hose Pressure Pressure Return Return 3/8 X 600 TR - TR hose...
  • Page 35 "Purple" "Purple" Opening Opening cylinder cylinder "Red" "Red" Pressure Pressure GNFH with 48 - 84 disc blades Item Quantity Description 3/8 X 4500 TR - TM hose Return Return 3/8 X 4500 TR - TM hose Pressure Pressure Hydraulic cylinder...
  • Page 36 "Green" "Green" Drawbar Drawbar cylinder cylinder "Red" "Red" Pressure Pressure GNFH with 48 - 84 disc blades Item Quantity Description 3/8 X 4500 TR - TM hose Return Return 3/8 X 4500 TR - TM hose Pressure Pressure Hydraulic cylinder Male quick coupler 1/2 NPT with cap NOTE The drawbar cylinder rod must be facing the drawbar side.

  • Page 37: Set-Up Instructions

    Check the tires inflation and keep the same pressure on all tires (check the 'tires inflation' page in the 'maintenance' section); Lubricate all grease fittings appropriately (see the 'lubrication' page in the 'maintenance' section). GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 38 However, the hitch and the hoop must pass through the chain links as shown on the illustration from the next page. Never hitch the hook without passing it through the chain. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 39 ATTENTION Keep the drawbar locked during work and transportation. During transportation, the lower hydraulic arms must remain adjusted. Never remove the hoses before lowering the disk harrow and before relieving the control valve pressure. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 40 (D) and cotter pin; lock the pin (E) and cotter pin on the hole. Return the pin (D) to its original position. Never loosen up or remove the hoses without relieving the control valve ATTENTION pressure first. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 41 Activate the cylinder (F) to articulate the drawbar (G) and lock it to the frame using a pin (H) and cotter pin. Assemble the transport bar (I) to the lower support of the tractor third point. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 42 • To return to working position, repeat the same procedures in reverse way. Working position Working position Transport position Transport position NOTE Place the lock (O) on the cylinder and depressurize it right after. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 43 Set-up instructions Procedures to transport the equipment Couple the transport bar (I) to the bar (C) using a hitch pin (P) and cotter pin. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 44: Adjustments And Operations

    Increasing "A": bigger disc blades penetration. Decreasing "A": smaller disc blades penetration. NOTE Use the depth stops (B) to limit the opening of the disk harrow, thus keeping the same depth adjustment on the disc gangs. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 45 • Note that this adjustment changes the tractor position related to the previous pass. The adjustments previously described determine the cutting depth, so it is NOTE necessary to keep an agreement between them for a greater performance. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 46: Ways To Start The Harrowing

    Entrance Entrance Entrance Entrance Harrowing in level Harrowing in level Entrance Entrance Exit Exit IMPORTANT • Note that the harrowed ground is always on the left hand side of the operator. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 47: Direction Of The Maneuvers

    ATTENTION It is necessary to perform the maneuvers in the left hand side to avoid overloading the equipment and allow it to operate normally. Following these instructions also avoids the undesirable formation of large furrows in the local maneuvers. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 48: Troubleshooting Guide

    L i f t t h e d i s c b l a d e t o r e d u c e t h e soil. penetration. Worn out / incorrectly Adjust or change the scrapers when adjusted scrapers. necessary. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 49 Lack of sealing material on the Use thread sealing tape and retighten Q u i c k c o u p l e r s thread. carefully. leaking. Damaged repairings. Replace the repairings. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 50: Operations - Important Points

    • During work or transportation, do not allow passengers on the tractor or in the equipment. • Always keep the equipment centered related to the tractor and leveled related to the soil. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 51 Use a cardboard or any other suitable object instead. • As previously mentioned, this disk harrow has several settings. However, only the local conditions can determine its best adjustment. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 52: Maintenance

    Duromark steel-plated bearing. Assembled with a high-performance lubricant, the Duromark steel-plated bearing do not have a plug since there is no need to refill it, avoiding the risk of mixing incompatible lubricants. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 53: Lubrication Points

    Maintenance Lubrication points Lubricate every 24 hours of service. ATTENTION Lubricate the points shown above and all grease fittings as well. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 54: Wheel Support Hubs Lubrication

    Whenever the retainer is damaged, replace it immediately. Do not forget to apply the specific grease for this equipment, that is a lithium soap grease, grade NLGI 2 with Extreme Pressure additive, anticorrosive and antioxidant. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 55: Hydraulic Cylinder Maintenance / Assembly

    7) Inspect the inside of the cylinder barrel, piston, rod and other polished parts for burrs and scratches. Smooth areas as needed with an emery cloth. NOTE Do not clamp rod by chrome surface. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 56 Insert the gland (E) on the cylinder head and align it with the tube so it IMPORTANT will fit correctly on the cylinder barrel. NOTE Do not clamp rod by chrome surface. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 57: Hydraulic Safety

    Carry out the operations on a carefully and controlled manner. Avoid to let the hydraulic system working when it is not being used. Failure to follow these procedures may lead to fatal accidents or even death. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 58: Disk Harrow Maintenance

    If it is necessary to totally lower the equipment, do not place the locks and neither the jack, as such act may result in damages to the jack itself. NOTE Use TATU original parts only. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 59: Tires Inflation

    Excess of pressure pressure pressure pressure pressure pressure NOTE For the cases when the maximum pressure is not specified on the tires, consult the tire manufacturer and adopt the pressure indicated by them. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 60: Important Data

    L = Harrow working width (meters); V = Average speed of the tractor (meters per hour); E = Efficiency: 0.90; X = Hectare value = 10,000 m Example with a GNFH (56 disc blades): R = ? L = 5.26 m V = 9,000 m/h E = 0.90...

  • Page 61: Average Income Table

    To know how many hours will be spent to work a certain previously known area, it is necessary to divide the value of the area by the hourly income. Example: An area of 50 hectares to be worked with a GNFH that has 56 disc blades (Hourly income = 5.26 hectares).

  • Page 62: Torque Table

    Newton-meters M 39 x 1.5 1073 d) Nominal thread diameter in millimeters x thread pitch 1454,988 2860,5 3878,84 4201,5 5697,234 Values are for reference and are based on average steel-to-steel friction conditions. GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 63: Important

    Technical information: Carlos Cezar Galhardi February, 2022 Serial number.: 05.01.09.2449 Revision: 04 MARCHESAN IMPLEMENTOS E MÁQUINAS AGRÍCOLAS "TATU" S.A. Av. Marchesan, 1979 - CEP 15994-900 - Matão - SP - Brasil Fone 16. 3382.8282 www.marchesan.com.br GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 64 Notes GNFH Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 66 www.marchesan.com.br...

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