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IDENTIFICATION Dealer: Owner: Firm / Farm: City: State: No. of the Certificate of Guarantee: Serial / No.: Date: Invoice No.: Product: Notes:...
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Introduction The GNACR model - Folding wheel offset disk harrow - was specially designed to work over large areas with a high productivity, pulled by large tractors to break the clods and level the soil. This will assure that the soil is in great conditions to plant any type of grain.
8. Maintenance 35 to 38 Lubrication Lubrication points Harrow maintenance / Maintenance precautions Lifting points 9. Important data 39 to 41 Calculation of hourly income Average income table Torque table 10. Important GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
NOTE which the original purchaser thereof at retail has used or allowed to be used parts, not made or supplied by Marchesan S/A. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
• The instructions under this symbol refers to the safety of the operator or third parties, therefore it should be carefully read and observed. 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, observations and prudence during the harrowing, transportation, maintenance and storage.
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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 maintenance operations and to transport the equipment. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
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• Whenever you unhitch the equipment, either in the field or shed, do it on a flat and firm surface and use the parking stands. Make sure the equipment is properly supported. • Please check the general safety instructions on the back cover of this manual. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
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• 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.
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For maintenance and cleaning, switch off the tractor engine. Para evitar accidentes, no haga reglajes con el equipo en movimiento. Para mantenimiento y limpieza, apague el motor del tractor. 05.03.03.1739 GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
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L U B R I C AT E A N D T I G H T E N D A I LY LUBRICAR Y REAPRETAR DIARIAMENTE 05.03.03.1827 Sticker set Model Serial number GNACR 05.03.03.3987 Tatu logo 05.03.03.3933 GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
Data sheet Type: ................Folding wheel offset disk harrow Model: ........................ GNACR Number of disc blades: ..............64, 72, 84, 96 or 108 Spacing between disc blades: ................200 mm Discs dimension: ..................20" x 3.5 mm ..................22" x 4.5 mm Disc blade type - Front gang: ...............
Components GNACR (64, 72 or 84 disc blades) 01 - Central frame 09 - Left rear frame 02 - Right side frame 10 - Central wheelset 03 - Left side frame 11 - Hydraulic cylinders 04 - Central front frame...
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Components GNACR (96 or 108 disc blades) 01 - Central frame 09 - Left rear frame 02 - Right side frame 10 - Central wheelset 03 - Left side frame 11 - Lateral wheelset 04 - Central front frame 12 - Hydraulic cylinders...
Use the L shaped socket wrench (B) to tighten the nuts of the bearing bolts. Use the L shaped socket wrench (C) to tighten the nuts of the traction unit. NOTE We recommend wearing gloves, especially while assembling the disc gangs. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
Assembly Assembly of bearings and spacer spools Before starting to assemble the disc gangs, check the correct position of the bearings and spacer spools. GNACR - 64 discs 18 bearings 40 spacer spools GNACR - 72 discs 18 bearings 48 spacer spools...
Lastly, put the bolt (H-1) and place the lock nut (I-1), fixing 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. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
(B), locking with bolts (C), spring washers and nuts. Then, lock the articulators (D) to the supports and lateral frames (right and left) using the axles (E), flat washers, spring washers and bolts. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
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(C). The scrapers feature an adjustment to approach or distance them from the NOTE disc blades. It should have a distance from 10 to 20 mm. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
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Tires assembly Lock the hub (A) to the wheelset support using the bolt (B), spring washer and nut. Right after, fasten the hub (A) to the tire (C) using bolts (D) and nuts. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
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Assembly of the jack stand and hose support Couple the hose support (A) to the traction bar, locking with flat washers and nuts. Then, assemble the jack stand (B) with junction axle and r-clip. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
Then, lock a hydraulic cylinder (H) end to the adjustment spindle and the cylinder rod to the wheelset arm using axles (I) and cotter pins. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
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Couple the articulation cylinder (O) to the central frame, locking it using a junction axle (P) and cotter pin. Couple the cylinder rod to the side frame using an axle (Q) and cotter pin. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
(B) and cotter pin. Note that the traction bar must be fixed during operation. NOTE The axle (B) is not included with the equipment. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
W h e n u n c o u p l i n g o r s t o r i n g t h e G N A C R harrow, put the jack stand in transport position. Transport position GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
When they are not being used, the safety locks must remain locked to the harrow, at the appropriate place. Use the rod stops (B) to control the depth, which are coupled to the hydraulic cylinder rods. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
Before lowering the side frames, remove the safety lock (B) and put ATTENTION it again in working position. This procedure must be done so that the hydraulic cylinders will not be damaged. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
• Try to make a good finish between passes. Avoid the formation of furrows or untilled strips. • The traction bars from the tractor and harrow should be as aligned as possible in relation to the working direction. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
Harrowing in squares from outside to inside from inside to outside Harrowing in level Note that the harrowed soil should always be to the left hand side of IMPORTANT the operator (harrow closed side). GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
Direction of the maneuvers A s d e s c r i b e d i n t h e f o r e g o i n g adjustments, the GNACR disk harrow provides several working angles to operate properly in all types of soil.
• During working or transportation, the presence of passengers on the tractor or equipment is not allowed. • The drawbar must remain loose during transportation and fixed during working. • As previously mentioned the GNACR harrow has several settings. However, only the local conditions can determine the best adjustment thereof. GNACR...
• The suitable level is when the oil reaches the hole of the plug, being the NOTE harrow in a flat place. • The oil level on the bearings is 130 ml. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
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In case of such kind of accidents or any other, consult a doctor immediately. If such doctor does not possess proper knowledge of this kind of problem, ask for a referral or search to find the proper treatment. GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
Maintenance Lifting points GNACR disk harrow feature adequate lifting points, being three points located on the central frame, three on the right side frame and three on the left side frame. When lifting with a hoist, it is essential to hitch the cables at the suitable points for lifting.
V = Average speed of the tractor, in meters per hour; E = Efficiency = 0.90; X = Hectare value = 10,000 m Example with a GNACR harrow of 64 disc blades: R = ? L = 6.2 m V = 7,000 m/h E = 0.90...
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 100 hectares to be worked with a GNACR of 44 disc blades (Hourly income = 3.91 hectares).
GRADE 8 No Marks. 3 Marks. 6 Marks. For metric conversion: NOTE • Multiply inch-pounds by 0.113 to convert to newton-meters (Nm). • Multiply foot-pounds by 1,356 to convert to newton-meters (Nm). GNACR Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.