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23

Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.

GNLCR

Adjustments and operations

Cutting depth adjustment

The cutting depth is adjusted by the 

following points:

1) Hydraulic cylinder.

Use the rod stops (A) on the 

hydraulic cylinder rod (B) so the tires 

can work as depth limiters.

2) Disc gang opening.

Increase the opening angle between the gangs to work in soils with greater difficult 

to penetrate the disc blades. In light and loose soils, the opening angle must be smaller.

This adjustment is done by changing the fixation of the disc blade carrier chassis in 

the main frame.

• To start the harrowing, we recommend an average disc gang opening. 

If a bigger penetration is necessary, increase the opening angle of 

the rear gang.

• The front gang usually does not work with a greater opening than 

the rear gang.

IMPORTANT

B

A

Front gang

Rear gang

Greater depth

Smaller depth

Smaller depth

Greater depth

Summary of Contents for GNLCR

Page 1: ...INSTRUCTIONS MANUAL GNLCR ...

Page 2: ...Dealer Owner Firm Farm City State No of the Certificate of Guarantee Serial No Date Invoice No Product Notes IDENTIFICATION ...

Page 3: ...The harrow transportation is done by an efficient wheelset system which have tires and a hydraulic cylinder This system allows the transportation for long distances and facilitate maneuvers during operation This instructions manual contains the necessary information for the best performance of this disk harrow The operator must carefully read the entire manual before working with the equipment Als...

Page 4: ...n the chassis 15 Scrapers assembly 16 Chassis assembly to the frame 17 Tires assembly Traction unit assembly 18 Hoses assembly 19 Protection cover assembly 20 6 Working preparation 21 22 Tractor preparation 21 Hitching to the tractor 21 Important recommendations 22 7 Adjustments and operations 23 to 25 Cutting depth adjustment 23 Side displacement 24 Operations Important points 25 8 Maintenance 26...

Page 5: ...ation precautions and maintenance of the equipment The instructions in this manual indicates how to get the best performance and allow the operator to get maximum income increasing the equipment lifetime This manual should be read by operators and maintenance staff Only people who own a full knowledge of the tractor and equipment must operate them Marchesan is not responsible for any damage caused...

Page 6: ...carefully observed to avoid accidents This symbol is a warning used to prevent accidents The instructions under this symbol refers to the safety of the operator or third parties therefore it should be carefully read and observed Read and understand the information before making any adjustment or maintenance The GNLCR disk harrow is simple to operate requiring however the basic and essential cautio...

Page 7: ...contact with your skin or clothes Never transport the equipment on highways or paved roads during the night Avoid that the tractor wheels touch the drawbar in sharps turns The presence of any other people on the tractor or equipment is stricly forbidden Have extreme caution when driving under electrical power lines Any contact may result in severe shocks injuries or death For your protection and s...

Page 8: ...ntangled in moving parts Never operate the equipment without its proper protective devices Be careful while hitching the tractor to the traction bar Wear protective gloves to work near the disc blades When setting the harrow to transport position check if there are no people or animals close or under it Never attempt to change the adjustments clean or lubricate the equipment while it is moving In ...

Page 9: ...get loose and cause accidents Underpin the equipment wheels appropriately Use chock blocks and safety chains to secure the equipment to the truck or trailer during the transport After 8 to 10 km transporting please inspect the load condition Repeat this procedure every 80 to 100 km Give more attention when transporting the equipment on rough roads slopes and other adverse conditions Always be care...

Page 10: ... Marchesan provide stickers upon request and indication of the respective serial number ATENÇÃO ATTENTION ATENCIÓN 05 03 03 1428 Leia o manual antes de iniciar o uso do equipamento Read the manual before attempting to work with the equipment Lea el manual antes de iniciar el uso del equipo LUBRIFICAR E REAPERTAR DIARIAMENTE LUBRICAR Y REAPRETAR DIARIAMENTE LU B R I C AT E A N D T I G H T E N DA I ...

Page 11: ...et Disk Harrow Model GNLCR Spacing between disc blades 170 mm Disc blades dimension Ø 16 x 3 5 mm or Ø 18 x 3 5 mm Number of disc blades 25 27 29 33 and 37 Disc blade type Concave notched Concave plain Bearings Length 182 mm Type Oil bath regreasable tapered roller bearings Spacer spools Length 167 mm Type Cast Axis diameter Ø 1 1 4 31 75 mm Hitching type Traction bar Working speed 7 to 9 km h Tir...

Page 12: ...sis 03 Rear chassis 04 Wheelset 05 Stabilizer bar 06 Traction bar 07 Tractor hitch 08 Hitch bar 09 Front disc gang 10 Rear disc gang 11 Protection cover 12 Cylinder 13 3 8 x 5600 TC TM hose 14 3 8 x 5300 TC TM hose 15 Quick coupler 16 Hose support 05 11 16 15 01 12 02 04 13 14 06 08 09 10 07 03 ...

Page 13: ...gangs Use two box wrenches A to tighten the nuts of the disc gangs one to hold the axis nut on one side while the other tight the nut to the other end thereby preventing the axis from rotating Use the L type wrench B to tighten the nuts of the bearing bolts Use the box wrench C to tighten the nuts of the traction unit Use the L type wrench D to tighten the nuts that fasten the chassis to the frame...

Page 14: ... bearings and spacer spools Bearing Spacer spool Furrow filler GNLCR 25 discs 06 bearings 17 spacer spools GNLCR 27 discs 06 bearings 19 spacer spools GNLCR 29 discs 06 bearings 21 spacer spools GNLCR 33 discs 08 bearings 21 spacer spools GNLCR 37 discs 08 bearings 25 spacer spools ...

Page 15: ... from page 11 to tight the gangs as follows 1 Place one of the wrenches in the external side of the gangs locked side supporting it on the ground See figure on page 14 2 On the internal side use the other wrench and tighten the gangs to get maximum torque 3 To tighten the gangs must remain underpinned with a piece of wood or another object preventing it from moving See figure on page 14 Finally pu...

Page 16: ...chesan Implementos e Máquinas Agrícolas TATU S A GNLCR Assembly H 1 H G I 1 E B C D F I A C 1 Axis torque Axis diameter Ft lbs 1 1 2 1600 1 5 8 1900 2 1 8 2100 2 1 2 2300 Consult torque table on page 31 NOTE ...

Page 17: ...e right and the front gang turns dirt to the left In the gang assembly to the carriers the bearing hangers should remain facing the disc blades concavity B C A Place the bolt A and the bolt lock B passing through the bearing housing and the bearing hanger hole On top place a flat washer C nut and cotter pin Repeat this operation for other bearings ...

Page 18: ...hem from the disc blades It should have a distance from 5 to 10 mm NOTE Scrapers assembly Note the fixing point of the scrapers with the end facing the concave side of the disc blades Assemble the scrapers A using bolts B and flat washers C which are placed underneath the fixation plates On top place a spring washer and nut A B C ...

Page 19: ...rrow is placed in the opposite position according to the illustration above See opening adjustments on page 23 NOTE Chassis assembly to the frame Fasten the front and rear disc blade carrier chassis to the frame A using bolts B and a square washer C which are placed underneath the fixation plate On top place a spring washer and a nut A B C D ...

Page 20: ...LCR Tires assembly Assembly B A C Assemble the tires A to the hubs B using bolts and nuts Couple the upper and lower plates A to the hitch bar B using a bolt C spring washer and nut Check the side displacement adjustments on page 24 Traction unit assembly B A ...

Page 21: ...spring washer and a nut D Also attach the fasteners E to the frame using a bolt F and spring washer C E A B D G F NOTE In order to protect the cylinder terminals the same is delivered to the owner facing down When assembling the cylinder the terminals and the bolt G must remain facing up and the cylinder rod must remain facing the front of the harrow according to the illustration Always use thread...

Page 22: ...bly Assembly Couple the protection cover A to the frame using cotter pins B The protection cover is assembled on the right side of the harrow closed side Articulate the cover above the frame and also assemble the bumpers C to the chassis ends front and rear on the same side NOTE C A B ...

Page 23: ...nsportation Never remove the hoses before lowering the harrow and relieve the control valve pressure ATTENTION The following instructions must be carefully observed in order to get the best work performance Approach the tractor and couple the hoses to the quick couplers In order to do so shut down the engine relieve the control valve pressure activate the lever a couple times and check if the coup...

Page 24: ...d other fixation components may be damaged Lubricate all grease fittings appropriately See lubrication instructions on pages 26 and 27 The drawbar spring must be adjusted leaving 1 cm one centimeter of thread above the nut and locknut in the rod This adjustment must be kept during working and transportation To transport the harrow to longer distances it is necessary to use the transportation lock ...

Page 25: ... to work in soils with greater difficult to penetrate the disc blades In light and loose soils the opening angle must be smaller This adjustment is done by changing the fixation of the disc blade carrier chassis in the main frame To start the harrowing we recommend an average disc gang opening If a bigger penetration is necessary increase the opening angle of the rear gang The front gang usually d...

Page 26: ...o better position the tractor in relation to the lower part of the plants The better position is achieved by changing the drawbar position on the hitch bar according to the figure below When adjusting the side displacement it is also necessary to change the fixation of the stabilizer bar A A Hitch bar D i s p l a c e m e n t Drawbar ...

Page 27: ...7 to 9 km h which is not advisable to overcome to maintain service efficiency and avoid possible damages to the equipment Before maneuvering at the end of the lines activate the hydraulic cylinder gradually thus lifting the disc gangs While harrowing with the disc blades into the ground do not maneuver to the left because the angle formed by the disc gangs transmit great effort to the equipment an...

Page 28: ...he articulations Clean the grease fittings with a cloth before inserting lubricant and replace the damaged ones Introduce an enough amount of new grease Use medium consistency grease 2 The lubrication of the roller bearings should be done in the same aforementioned period 24 hours 2 1 The roller bearings with oil bath works in constant lubrication but it is still necessary to give them the followi...

Page 29: ...27 Marchesan Implementos e Máquinas Agrícolas TATU S A GNLCR Lubricate every 24 operating hours Lubricate every 100 operating hours Maintenance ...

Page 30: ...f necessary make the replacement thereof Use TATU original parts only NOTE Maintenance precautions Caution Hydraulic oil leakage may be strong enough to penetrate the skin and cause serious injuries to health Oil leakage through a tiny hole may seem invisible Use a piece of cardboard or wood instead of your hand to check a possible leakage Keep unprotected parts of the body such as your face eyes ...

Page 31: ...ow of 37 disc blades R L 2 90 m V 7 000 m h E 0 90 X 10 000 m2 R 2 90 m x 7 000 x 0 90 10 000 R The hourly income working with an equipment of 37 disc blades will be approximately 1 83 hectares per hour Important data Calculation of hourly income The harrow hourly income can vary by physical factors such as humidity slope soil hardness appropriate adjustments and especially the working speed NOTE ...

Page 32: ...to divide the value of the area by the hourly income Example An area of 100 hectares to be worked with a GNLCR of 37 disc blades Hourly income 1 83 ha So 100 54 64 1 83 R Approximately will be spent 54 fifty four hours to work in an area of 100 hectares with a GNLCR of 37 disc blades Model Number of disc blades Cutting width m Hourly income ha Daily income ha GNLCR 25 1 90 1 20 10 77 27 2 07 1 30 ...

Page 33: ...bs 145 Ft Lbs 200 Ft Lbs 220 Ft Lbs 280 Ft Lbs 315 Ft Lbs 7 8 125 Ft Lbs 140 Ft Lbs 320 Ft Lbs 350 Ft Lbs 450 Ft Lbs 500 Ft Lbs 1 190 Ft Lbs 205 Ft Lbs 480 Ft Lbs 530 Ft Lbs 675 Ft Lbs 750 Ft Lbs 1 1 8 265 Ft Lbs 300 Ft Lbs 600 Ft Lbs 670 Ft Lbs 960 Ft Lbs 1075 Ft Lbs 1 1 4 375 Ft Lbs 415 Ft Lbs 840 Ft Lbs 930 Ft Lbs 1360 Ft Lbs 1500 Ft Lbs 1 3 8 490 Ft Lbs 560 Ft Lbs 1100 Ft Lbs 1250 Ft Lbs 1780 ...

Page 34: ... allow a better view and detailed instructions Never operate the equipment without these safety devices TECHNICAL PUBLICATION DIVISION Elaboration Diagramming Valson Hernani de Souza Diagramming Assistant Ingrid M G S Luis Translation Matheus Freire de Souza Illustrations Carlos C Galhardi Reinaldo Tito Júnior July 2016 Serial Number 05 01 09 0996 Revision 06 MARCHESAN IMPLEMENTOS E MÁQUINAS AGRÍC...

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