Tatu Marchesan GNACR Operator's Manual
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Tatu Marchesan GNACR Operator's Manual

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GNACR
GNACR
OPERATOR'S
MANUAL

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Summary of Contents for Tatu Marchesan GNACR

  • Page 1 GNACR GNACR 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 Introduction The GNACR disk harrow is specially designed to work over great areas with a higher productivity when combined with large tractors; this equipment can clod break and level the soil, leaving it in good conditions to receive any type of grain.

  • Page 4: Table Of Contents

    Hydraulic cylinder maintenance / assembly 47 & 48 Hydraulic safety Disk harrow maintenance Tires inflation 9. Important data 52 to 54 Calculation of hourly income Average income table Torque table 10. Important GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 5: To The Owner

    NOTE original purchaser thereof at retail has used or allowed to be used parts, not made or supplied by Marchesan. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 6: To The Operator

    If the safety instructions are not being followed, a serious accident or even death may occur. The GNACR disk harrow is simple to operate, requiring however the basic and essential cautions to its handling. Always keep in mind that safety requires constant attention, observation and prudence during the harrowing, transportation, maintenance and storage.
  • 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. GNACR 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. GNACR 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. GNACR 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. GNACR 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. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 12 In order to avoid accidents activate cylinder locks before transportation or carrying out any service on the equipment. Para evitar accidentes, instale las trabas de los cilindros antes del transporte o antes de efectuar trabajos en el equipo. 05.03.03.1738 GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 13 To the operator Safety decals Decal set Qty. Model Serial number GNACR decal 05.03.03.3987 05.03.03.3795 Tatu logotype decal Lifting points decal 05.03.03.4078 Warning decal 05.03.03.1738 Read the manual decal 05.03.03.1428 05.03.03.1827 Lubricate and retighten daily decal Danger decal 05.03.03.1896 Danger decal 05.03.03.3038...

  • Page 14: Data Sheet

    Data sheet Type: ................Folding Wheel Offset Disk Harrow Model: ........................GNACR Number of disc blades: ..............64, 72, 84, 96 and 108 Spacing between disc blades: ................200 mm Disc blade dimension: ..........Ø 22" x 4.5 mm and Ø 22" x 6 mm Disc blade type - Front gang: ...............

  • Page 15: Dimensions For Transportation And Storage

    Data sheet Dimensions for transportation and storage - 64, 72 and 84 disc blades Number of Model disc blades 3,145 3,500 7,420 GNACR 4,050 3,180 3,540 7,420 3,700 4,030 7,420 NOTE Measures in millimeters. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 16 Data sheet Dimensions for transportation and storage - 96 and 108 disc blades Number of Model disc blades 3,430 3,840 9,360 GNACR 5,830 4,000 4,400 9,360 NOTE Measures in millimeters. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 17: Components

    Components GNACR - 64, 72 and 84 disc blades 01 - Central frame 09 - Rear left frame 02 - Right lateral frame 10 - Central wheelset 03 - Left lateral frame 11 - Hydraulic cylinder 04 - Central front frame...
  • Page 18 Components GNACR - 96 and 108 disc blades 01 - Central frame 09 - Rear left frame 02 - Right lateral frame 10 - Central wheelset 03 - Left lateral frame 11 - Lateral wheelset 04 - Central front frame...

  • Page 19: Assembly

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

  • Page 20: Assembly Of Bearings And Spacer Spools

    64 disc blades 64 disc blades 18 bearings 18 bearings 40 spacer spools 40 spacer spools 72 disc blades 72 disc blades 18 bearings 18 bearings 48 spacer spools 48 spacer spools GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 21 84 disc blades 84 disc blades 18 bearings 18 bearings 60 spacer spools 60 spacer spools 96 disc blades 96 disc blades 24 bearings 24 bearings 60 spacer spools 60 spacer spools GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 22 Assembly Assembly of bearings and spacer spools 108 disc blades 108 disc blades 24 bearings 24 bearings 72 spacer spools 72 spacer spools Bearing Bearing Spacer spool Spacer spool GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 23 Lastly, put the bolt (H-1) and position the lock nut (I-1), fastening with a spring washer and nut. IMPORTANT Check the correct side of the bearings and spacer spools according to the disc blades concavity. Grease fitting Grease fitting or plug or plug GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 24 Ft. - lbs. 1.1/2" 2670 NOTE The axle threads (B) must be cleaned 1.5/8" 2890 and greased before their assembly. 2.1/8" 3300 Check the torque table on the 'important 2.1/2" 3500 data' section. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 25: Frames Junction

    (D). Then, lock the articulators (D) to the articulating supports (A) and to the left and right lateral frames using the axles (E), flat washers, spring washers and bolts (F). GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 26: Disc Gangs Assembly To The Frame

    Place the bolts (B) passing through the bearing and the bearing hanger hole. On the top, place a square washer (C), nut and counter nut (D). Repeat this operation for the other bearings. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 27 Tires assembly Lock the hub (A) to the wheelset support (B) using a bolt (C), spring washer and nut. Then, fasten the hub (A) to the tire (D) using bolts and nuts (E). GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 28: Assembly Of The Disc Carrier To The Frame

    Assemble the bolts (B) from top to bottom on the rear part of the disc carriers, where the scrapers are located. Note that the bolts (C) are placed on the front part of the frame and from the bottom to the top. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 29 Hose support and parking jack assembly Couple the hose support (A) to the drawbar and lock using flat washers and nuts. Right after, assemble the parking jack (B) using a junction axle and cotter pin. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 30: Hydraulic Cylinder Assembly

    Give a 180° turn on the cylinder barrel to let the ports (A) facing up. The bolt (C) must remaing facing up as shown below. NOTE Always use thread sealing tape to couple the male quick couplers to the hoses. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 31 Right after, lock one end of the hydraulic cylinder (H) to the spindle and the rod of the cylinder to the wheelset arm using axles (I) and cotter pins. Adjusting Adjusting spindle spindle GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 32 Articulation cylinders: Couple the articulation cylinder (O) to the central frame locking with junction axle (P) and cotter pin. Couple the cylinder rod to the lateral frame using axle (Q) and cotter pin. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 33 Assembly Pivoting lateral hydraulic circuit GNACR - 64, 72 and 84 disc blades GNACR - 96 and 108 disc blades Item Description Qty. Item Description Qty. 3/8 x 1200 TR-TC 3/8 x 480 TR-TC hose Pressure Pressure hose 3/8 x 1600 TR-TC...
  • Page 34 3/8 x 4500 TR-TR hose 3/8 x 4500 TR-TR hose Return 3/8 x 3200 TC-TC hose Pressure / Return Pressure / Return 3/8 x 3200 TC-TC hose Hydraulic cylinder Male quick coupler 1/2" NPT with cap GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 35 Pressure 3/8 x 5000 TC-TM hose Return Pressure / Return 3/8 x 3500 TC-TC hose 3/8 x 4100 TC-TC hose Pressure / Return Hydraulic cylinder Male quick coupler 1/2" NPT with cap GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 36: Set-Up Instructions

    Hitch the drawbar (B) to the tractor bar using an axle (C). To facilitate hitching, use the parking jack adjustment. NOTE The axle (C) is not included with the equipment. ATTENTION Before removing the hoses, lower the equipment and relieve the control valve pressure. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 37 Set-up instructions Parking jack position After coupling the disk harrow to the tractor, place the parking jack (A) on transport/ operation position. When uncoupling or storing the GNACR, set the parking jack to transport position. Transport Transport position position Important recommendations The tractor drawbar must remain loose during transportation and fixed during working.

  • Page 38: Locking The Frames For Transportation

    Before lowering the lateral frames, remove the safety lock (B) and set ATTENTION it to working position again. This procedure must be done to avoid damages to the hydraulic cylinders. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 39: Adjustments And Operations

    Try to make a good finish between the passes. Avoid the formation of furrows or untilled bands. The tractor and equipment drawbars must be as aligned as possible related to the working direction. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 40: Ways To Start The Harrowing

    Harrowing in level Harrowing in level Note that the harrowed soil is always on the left hand side of the IMPORTANT operator. Being the disc gangs lowered, only maneuver to the left hand side. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 41: Direction Of The Maneuvers

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

  • Page 42: Troubleshooting Guide

    L o c k e d d i s c gangs. Deep penetration on wet Lift the disc blade to reduce the penetration. soil. Worn out / incorrectly Adjust or change the scrapers when adjusted scrapers. necessary. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 43 Normal pressure 180 Kgf/cm Insufficient tightening. Retighten carefully. Quick couplers Lack of sealing material on the Use thread sealing tape and retighten leaking. thread. carefully. Damaged repairings. Replace the repairings. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 44: Operations - Important Points

    • Only pull the equipment using a tractor with enough power. • During working or transportation, do not allow passengers on the tractor or equipment. • Always keep the equipment centralized related to the tractor and leveled related to the soil. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 45 • Do not check eventual leaks using your bare hands, as the high pressure may cause body injury. Use a cardboard or any other suitable object. • As previously mentioned, this disk harrow has several settings. However, only the local conditions can determine its best adjustment. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 46: Maintenance

    Ideal level The suitable level is when the oil reaches the hole of the plug, being the NOTE harrow in a flat place. The oil volume on the bearings is 130 ml. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 47: Lubrication / Lubrication Points

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

  • Page 48: Wheelset 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. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 49: 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. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 50 Insert the gland (E) on the cylinder head and align it with the tube so IMPORTANT it will fit correctly on the cylinder barrel. NOTE Do not clamp rod by chrome surface. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 51: 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. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 52: Disk Harrow Maintenance

    The operator also have to know the need to follow the instructions, as the lack of safety may increase the risk of accidents. NOTE Use TATU original parts only. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 53: 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. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 54: Important Data

    L = Harrow cutting width (meters); V = Average speed of the tractor (meters per hour); E = Efficiency: 0.90; X = Hectare value = 10,000 m Example with a GNACR (64 disc blades): R = ? L = 6.2 m V = 9,000 m/h E = 0.90...

  • Page 55: Average Income Table

    To know how many hours will be spent to work in 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 GNACR that has 64 disc blades (Hourly income = 5.02 Ha).

  • Page 56: 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. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

  • Page 57: Important

    Revision: 04 MARCHESAN IMPLEMENTOS E MÁQUINAS AGRÍCOLAS "TATU" S.A. MARCHESAN IMPLEMENTOS E MÁQUINAS AGRÍCOLAS "TATU" S.A. Marchesan Av., 1979 - Zip Code 15994-900 - Matão - SP - Brazil Telephone 55.16.3382.8282 www.marchesan.com.br GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 58 Notes GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
  • Page 60 www.marchesan.com.br...

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