Tatu Marchesan GCRO 7010 User manual

INSTRUCTIONS MANUAL
GCRO 7010
GCRO 7012

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

1
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GCRO 7010 / GCRO 7012
Introduction
The grids Remote Control Offset, GCRO model 7010 and 7012 GCRO
are specially designed for large areas. It is ideal for primary tillage
or leveling with excellent application on soil preparation for annual or
perennial crops.
The structure of sturdy and appropriate frame, is made of folded steel
plates joined by a good penetration and fine finish with resilient parts
in the load concentrations.
Have efficient Shooting system with hydraulic drive for depth control
and safe transport over long distances, this system also streamlines
Shooting maneuvers during service.
This instruction manual contains the information necessary
for the best performance of the scraper. The operator must
carefully read the entire manual before putting the equipment
into operation. Also must make sure of safety recommendations.
For any further clarification, or in the event of technical problems
that may arise during the service, consult your reseller,together
with the Technical Support department of the factory, ensures
the fully functioning of your TATU harrow.

2Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GCRO 7010 / GCRO 7012
Index
1. To the owner 03
2. To the operator 04 a 09
3. Technical specifications 10 e 11
4. Components 12
5. Assembly 13 a 27
Use of the the set of wrenches 13
Assembly of bearings and separators 14 a 17
Assembly sequence of disc section 18 e 19
Assembly of disc section on the chassis 20
Assembly of cleaners 21
Assembly of chassis in the frame 22
Assembly of tires / Assembly of stabilizer 23
Assembly of drive train 24
Assembly of support the hoses and jack 24
Assembly of support of folding discs 25
Hydraulic circuit 26
Assembly of safety valve 27
6. Preparation for work 28 e 29
Preparation of the tractor /Preparation of the harrow /Hitch to the tractor 28
Importants recomendatios 29
7. Adjustments and operations 30 a 34
Depth cut 30 e 31
Tractor position relative to the previous pass - Sideshift 31
Ways to start the harrowing 32
Directions of the maneuvers 33
Operations - Importants points 34
8. Optional 35
Rear hitch 35
9. Maintenance 36 a 39
Lubrication 36
Lubrication points 37
Maintenance of harrow / Maintenance precautions 38
Points for lifting 39
10. Important data 40 a 42
Calculation of hourly income 40
Middle-income table GCRO 7010 e GCRO 7012 41
Torque table 42
11. Important 43
12. Note 44

3
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GCRO 7010 / GCRO 7012
General information
Important
To the owner
Right and left hand side indication is made observing the equipment from the rear.
To order any parts or request technical assistance services it is required to provide
the data contained on the nameplate, which is located on the chassis of the equipment.
The acquisition of any TATU product assures to the original purchaser the following
rights:
• Warranty certificate;
• Instructions manual;
• Technical assistance by the dealer on equipment delivery .
The owner has the obligation of inspect the conditions of the product on delivery, as
well as knowing the warranty terms.
Special attention should be given to safety recommendations, operation cares and
maintenance of equipment.
Be sure to read and understand this instructions for adjusting and operating the
equipment as reported in this manual. Check each item referred to obtain an efficient
operation and maximum trouble free performance. Remember an equipment which is
properly lubricated and adjusted saves your time, labor and fuel. This manual should be
read by Operators and maintenance personel.
• Only people who own a full knowledge of the tractor and equipment,
must operate them;
• Marchesan is not responsible for any damage caused by accident on
transporting, incorrect utilization or inadequate storage;
• After the operating season, clean and inspect your equipment, preventive
maintenance pays dividends.
• Your Dealer has original equipment parts, which assure proper t and
best performance.
The warranty shall not be applied to any equipment, or any part thereof which
has been altered elsewhere than at the place of manufacture, or which the
original purchaser thereof at retail, has used or allowed to be used parts, not
made or supplied by Marchesan S/A.
NOTE

4Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GCRO 7010 / GCRO 7012
To the operator
Operation safety
Read and understand the information about before realizing
adjustments and maintenance.
Be carefu with environment
The harrows are simple to operate, requiring however the
basic care and essential to its handling.
Always keep in mind that safety requires constant attention,
observation and prudence during the harrowing, transportation,
maintenance and grid storage.
Dear User!
Respect the ecology. Don’t throw trash away. This gesture of
goodwill helps to protect our environment.
Products such as oil, fuel, filters, batteries and the like, is
spilled to the ground can penetrate to the underground layers,
compromising nature. Should practice the ecological disposal and
conscious of them.
• The security aspects must be carefully observed to avoid
accidents.
• This symbol is a warning used for accident prevention.
• The instructions under this symbol refer to the safety of the operator
or third parties therefore should be read carefully and observed.
When operating with power outlet (TDP), make with the utmost
care. Not approach when in operation.

5
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GCRO 7010 / GCRO 7012
To the operator
Never use your hands to check hydraulic leaks, escaping oil
under pressure, may have sufficient pressure and may have sufficient
force to penetrate the skin, maybe cause several injuries.
Never attempt to change the adjustments, clean or lubricate the
equipment, when the same is turned on or in movement.
Be careful when moving in steep graders. Risk of overturn.
Be careful about the use of fertilizer or chemicals. These products
in any contact with skin, can be cause any serious injury to the body.
Keep the entrances and work places clean and safe from oil,
grease. Risk of accidents.
Never transport the equipment on rough roads. When operating,
avoid to make sharp turns, that may cause tire contact with the
equipment.
The presence of any other people on the tractor or equipment
is strictly forbidden.
Use extreme caution when circulating with the equipament under
electrical power lines, any contact may result severe shocks, injuries
or death.
For your protection and safety, always wear adequate clothes
and shoes during operation of the equipament.
Always use the locks to make the transport of the equipment.

6Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GCRO 7010 / GCRO 7012
• While at work or during transportation, only the presence of the operator is
allowed on the tractor.
• Do not allow children to play near or over the equipament, while it is in
operation, during transportation or stored.
• Have full knowledge of the land area before you start your work. Provide the
delineation of obstacles or hazardous locations.
• Use the speed which is suitable to the conditions of the ground or pathways
to be covered.
• Use individual protection equipment.
• Wear appropriate clothes and footwear. Avoid clothes that are either loose or
hanging from the body, which may become entangled in moving parts.
• Never operate the equipment without its proper protective devices.
• Be careful while hitching the disc plow to the tractor.
• When putting the blade in transport position, verify if there aren’t people or
animals around or over the equipment.
• Never attempt change the adjustments, clean or lubricate with the equipament,
in movement.
• Always switch off the engine before leaving the tractor seat.
• Only drive the equipment using tractors with the appropriate power.
• Carefully check the transport width on narrow locations.
• 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 observe the general safety instructions on the back of this manual.
To the operator

7
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GCRO 7010 / GCRO 7012
Transportation on truck or trailer
The Marchesan doesn't advise the equipment traffic on highways, because
this practice involves serious security risks in addition to being prohibited by
current existing Traffic Law. The transport for long distance should be done
on truck, trailer, and others by following these safety guidelines:
• Use adequate ramps to load or unload the equipment. Do not make loading
starts, it can serious accident occur.
• When lifting with winch, use the appropriate points to lift.
• Properly Chock the equipment wheels.
• Utilize amarras (cabos, correntes, cordas, etc.), em quantidade suficiente para
imobilizar o equipamento durante o transporte.
• After 8 to 10 km transporting, please inspect the condition of the cargo. Repeat
this procedure every 80 to 100 km. Give more attention when transporting the
implement on rough roads, steep graders and other adverse conditions.
• Be careful with transport height, specially when passing under electrical power
lines. Any contact could result in severe shock, injury or death.
• Observe all laws and regulations as to the height limits and cargo width while
transporting the implement on truck or trailer. If necessary use banners, lights
and other devices in order to give adequate warning to the drivers of other
vehicles.
To the operator

8Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GCRO 7010 / GCRO 7012
The safety labels warn about the points of equipment that require more attention and
should be kept in good repair. If the safety labels are damaged or illegible must be replaced.
The Marchesan provides adhesives, upon request and stating their codes.
To the operator
0503031428
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.
DANGER
IN ORDER TO AVOID
ACCIDENTS, DO NOT CARRY
OUT ADJUSTMENTS WITH THE
EQUIPMENT IN MOVEMENT.
05.03.03.4067
Safety labels

9
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GCRO 7010 / GCRO 7012
To the operator
LUBRIFICAR E REAPERTAR DIARIAMENTE
LUBRICAR Y REAPRETAR DIARIAMENTE
L U B R I C A T E A N D T I G H T E N D A I LY
0503031827
WARNING
IN ORDER TO AVOID ACCIDENTS
ACTIVATE CYLINDER LOCKS
BEFORE TRANSPORTATION OR
BEFORE CARRYING OUT ANY
SERVICES ON THE EQUIPMENT.
05.03.03.4066
Model Serial number Serial number
GCRO 7010 Adhesive label GCRO 7010
05.03.06.3943 Adhesive label TATU
05.03.03.3933
GCRO 7012 Adhesive label GCRO 7012
05.03.06.3944

10 Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GCRO 7010 / GCRO 7012
Technical specification
GCRO 7010
Models Nº of disc
blades
Cutting width
(mm)
Net weigth
(kg)
Power (hp)
the tractor engine
GCRO 7010
Rigid
28 3.680 4.930 180 - 200
32 4.190 5.230 200 - 220
36 4.700 5.514 220 - 240
40 5.205 5.704 240 - 260
44 5.715 6.071 260 - 280
48 6.220 6.273 280 - 300
GCRO 7010
folding tips
48 6.220 6.630 280 - 300
52 6.730 7.327 300 - 320
56 7.240 7.573 320 - 330
60 7.772 7.799 330 - 350
GCRO 7010
QL
72 9.540 13.812 370 - 390
76 10.065 13.888 390 - 410
80 10.445 14.159 410 - 430
The weights above are obtained with discs Ø 26 "x 6.0 mm.
NOTE
Model ........................................................................................................ GCRO 7010
Spacing (mm) ..........................................................................................................270
Dimension of the discs...........................................................................Ø 26" x 6,0 mm
...........................................................................Ø 28" x 7,5 mm
...........................................................................Ø 30" x 7,5 mm
Disc blade type - Front section........................................................ Truncated concave
Rear section............................................................ Smooth concave
Bearing - Length ................................................................................... 262 mm
Type ............................................ Tapered roller bearings in oil bath
Separators - Length ............................................................................ 262 mm
Type....... ..............................................................................Casting
Axle diameter ................................................................................. Ø 41,3 mm (1.5/8")
Type of hitch.................................................................................................... Drawbar
Tires .............................................................................................400/60 - 14 L (52 psi)
Working speed .......................................................................................5,0 to 7,0 km/h

11
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GCRO 7010 / GCRO 7012
Technical specification
GCRO 7012
Models Nº of disc
blades
Cutting width
(mm)
Net weigth
(kg)
Power (hp)
the tractor engine
GCRO 7012
Rigid
28 3.920 5.502 200 - 210
32 4.475 5.711 220 - 240
36 5.030 6.375 260 - 280
40 5.590 7.214 300 - 320
GCRO 7012
folding tips
50 7.080 8.450 350 - 370
54 7.635 8.866 380 - 400
56 7.940 9.282 450 - 500
The weights above are obtained with discs Ø 32 "x 7,5 mm.
NOTE
Model ........................................................................................................ GCRO 7012
Spacing (mm) ..........................................................................................................300
Dimension of the discs...........................................................................Ø 30" x 7,5 mm
...........................................................................Ø 32" x 7,5 mm
Disc blade type - Front section......................................................... Truncated concave
Rear section............................................................ Smooth concave
Bearing - Length .................................................................................. 292 mm
Type ............................................ Tapered roller bearings in oil bath
Separators - Length ............................................................................ 292 mm
Type....... ............................................................................. Casting
Axle diameter ............................................. Ø 41,3 mm (1.5/8") ou Ø 53,0 mm (2.1/8")*
Type of hitch.................................................................................................... Drawbar
Tires ...................................................................................... 400/60 - 14 L (52 lbs/pol²)
Working speed ........................................................................................5,0 a 7,0 km/h
* Shaft diameter for models with 56 discs....................................... Ø 53,0 mm (2.1/8")*

12 Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GCRO 7010 / GCRO 7012
01
04 09
05
10
03
04
11
02
07
12
06
08
Components
01 - Chassis 07 - Drawbar Assembly
02 - Front Disc Gang Carrier 08 - Hitch
03 - Rear Disc Gang Carrier 09 - Transport Safety Lock
04 - Folding Wings Hydraulic Cylinder 10 - Rod Stop
05 - Wheelwork System 11 - Rear Hitch
06 - Hose Holder 12 - Jackstand

13
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GCRO 7010 / GCRO 7012
Assembly
First of all, choose a clean and flat surface. Split the parts in groups to make it easier
to pick them up and check the quantities against the packing list.
Use of the set of wrenches
OBS. We recommend wearing gloves especially in assembling the disc sections.
Installation of disc sections
- Before starting the assembly of the disc sections check the correct position of bearings
and spacers according to the illustrations on the following pages.
- Use the wrenches (A) to tightening the nuts of the disc sections, one to hold the
axle nut on the one hand while tightening the nut to the other end; thereby preventing the
shaft from rotating.
- The wrench (B) is used to grip of the set of nuts.
- The wrench (C) is used to adjust the adjusting nut of the rear stabilizer.
- The wrench (D) is used for tightening the nuts of discs sections.
- The wrench (E) is used for tightening the nuts of the bearing screws.
E
D
C
AB

14 Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GCRO 7010 / GCRO 7012
Assembly
Assembly of bearings and separators
GCRO 7010 and
7012 - 28 discs,
08 bearings +
16 spacers
GCRO 7010 and
7012 - 32 discs,
12 bearings +
14 spacers
GCRO 7010 and
7012 - 36 discs,
12 bearings +
18 spacers
GCRO 7010
- 40 discs,
12 bearings +
22 spacers
GCRO 7012
- 40 discs,
12 bearings +
22 spacers
GCRO 7010
- 44 discs,
16 bearings +
20 sepacers
Bearing
Spacer
Furrow filler
(optional)

15
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GCRO 7010 / GCRO 7012
Assembly
Assembly of bearings and separators
GCRO 7010
- 48 discs,
16 bearings +
24 spacers
GCRO 7012
- 50 discs,
16 bearings +
26 spacers
GCRO 7010
- 52 discs,
16 bearings +
28 spacers
GCRO 7012
- 54 discs,
16 bearings +
30 spacers
GCRO 7012- -
56 discs,
16 bearings +
32 spacers
Bearing
Spacer
Furrow
filler
(optional)

16 Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GCRO 7010 / GCRO 7012
Assembly
Assembly of bearings and separators
GCRO 7010
- 56 discs,
16 bearings +
36 spacers
GCRO 7010 -
60 discs,
16 bearing +
40 spacers Bearing
Spacer
Furrow filler
(optional)

17
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GCRO 7010 / GCRO 7012
Assembly
Assembly of bearings and separators
Bearing
GCRO 7010
- 72 discs,
24 bearings +
32 spacers
GCRO 7010
- 80 discs,
24 bearings +
36 spacers
Spacer
Furrow
filler
(optional)
GCRO 7010
- 76 discs,
24 bearings +
36 spacers

18 Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GCRO 7010 / GCRO 7012
Assembly
Assembly sequence of discs sections
Place the external latch (A) with the axis (B).
- Place The nut (C) passing 5 mm of shaft face.
- Place the discs (D), bearings (E) and the tabs (F) following schemes of pages 14,
15, 16 and 17.
- Now place the internal latch (G) and the other nut (C-1).
- Place the screw (H) holding the lock nut (I), along with pressure washer and nut.
Only the outside of the sections.
- Now using the keys (A) on page 13, do the tightening of sections, as follows:
1) Place one of the keys on the outside of the sections (locked side), leaving support
on the ground, as shown on page 19.
2) On the domestic side, use the other key and make grip sections, to get the maximum
torque.
3) Note that for the tightening of the sections, the same should remain "sidewalks"
with piece of wood or other object, preventing it from moving. (As figure on page 19).
- Finally fit bolt (H-1) and position the lock nut (I-1), fixing with pressure washer and nut.
IMPORTANT • Check the correct side of the bearings and spacers according to the
concavity of the discs.
• The grease the roller bearings (CM) or oil (DM) must be mounted in the
section with a grease tting or plug turned back.
• Note that the bearings are front or rear.
Grease fitting or
plug backwards.