TATU 2240 GCRO User manual

2240 GCRO
INSTRINSTR
INSTRINSTR
INSTRUCTIONS MANUUCTIONS MANU
UCTIONS MANUUCTIONS MANU
UCTIONS MANUALAL
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1
INTRODUCTIONINTRODUCTION
INTRODUCTIONINTRODUCTION
INTRODUCTION
The Wheel Offset Disc Harrow, model GCRO, was specially developed for large
areas. It is ideal for primary tillage or leveling after that, preparing any kind of soil,
with excellent application in the soil tillage for annual and perennial crops.
The heavy-duty and appropriate structure dimensional, is made of bent steel
plates joined by a good penetration and fine-finishing work welding process, with
tough parts in the load concentrations.
This harrow transportation is made through an efficient wheelwork system formed
by four 11L-15 tires, with high flotation and low compaction, speeding the maneuvers
of borders and the transportation for long distances.
This Manual contains the necessary information for the best disc harrow
performance. The operator must read with attention the whole manual before
operating for the first time and be aware of the safety recommendations.
To obtain any information, or in the eventuality of technical problems, consult
the dealer, as well as Marchesan's customer service, that will guarantee the disc
harrow full operation.

2
TO THE OWNER ..................................................................................................................... 3
TO THE OPERATOR ........................................................................................................ 4 to 7
TECHNICAL SPECIFICATIONS............................................................................................... 8
COMPONENTS ........................................................................................................... 09 to 11
ASSEMBLY ................................................................................................................... 12 to 34
Use of the Wrenches and Assembly of the Disc Gangs ............................. 12 to 20
Mounting the Disc Gangs ........................................................................... 21 and 22
Mounting the Disc Gangs on the Carriers..............................................................23
Mounting the Scrapers ..............................................................................................24
Mounting the Gang Carriers at the Main Frame ................................................. 25
Mounting the Wheels and Lateral Sliding Turnbuckle..........................................26
Adjusting the Bearings to Wheel Assemblies.......................................................... 27
Mounting the Drawbar Assembly............................................................................28
Mounting the Hose Holder and the Drawbar Jack ..............................................28
Mounting the Leveling Control and Stabilizer (Turnbuckle)................................29
Mounting the Foldable Gang Carriers ................................................................... 30
Mounting the Oil Tee Adapters and the Hydraulic System ................... 31 and 32
Proceeding the Sequence Valve Adjustment ....................................................... 33
Mounting the Oil Distributor Valve and Hydraulic System ..................... 33 and 34
PREPARATION TO OPERATE ................................................................................. 35 and 36
Preparing the Tractor and Hitching ........................................................................35
Important Recommendations ................................................................................. 36
ADJUSTMENTS AND OPERATIONS........................................................................... 37 to 42
Depth of Cut - Disc Gang Angle ............................................................................. 37
Depth of Cut (Cylinder Stops) and Lateral Displacement ..................................38
Adjusting the Stabilizer Mechanism ........................................................................39
How to Start Harrowing ............................................................................................. 40
Maneuver Directions ................................................................................................. 41
Operations - Important Points .................................................................................42
OPTIONALS ........................................................................................................................... 43
MAINTENANCE .......................................................................................................... 44 to 46
Lubrication..................................................................................................... 44 and 45
Disc Harrow Maintenance ........................................................................................ 46
IMPORTANT DATAS ................................................................................................ 47 and 48
How to Calculate Hourly Performance of the Harrow ......................................... 47
Table Showing Average Performance of the Harrow ..........................................48
IMPORTANT ..........................................................................................................................49
TT
TT
TABLE OF CONTENTSABLE OF CONTENTS
ABLE OF CONTENTSABLE OF CONTENTS
ABLE OF CONTENTS

3
TO THE OWNER
IMPORTANT: - ONLY PEOPLE WHO OWN A FULL KNOWLEDGE OF THE TRACTOR AND
IMPLEMENT MUST OPERATE THEM.
- MARCHESAN IS NOT RESPONSIBLE FOR ANY DAMAGE CAUSED BY
ACCIDENT ON TRANSPORT, INCORRECT UTILIZATION OR NO ADEQUATE
STORAGE.
- AFTER THE OPERATING SEASON, THOROUGHLY CLEAN YOUR
IMPLEMENT AND INSPECT IT. PREVENTIVE MAINTENANCE PAYS
DIVIDENDS.
- YOUR DEALER HAS ORIGINAL EQUIPMENT PARTS WHICH ASSURE PROPER
FIT AND BEST PERFORMANCE.
Note: 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.
General Information
- The right hand and left hand sides of the disc harrow are determine by facing
in the direction the implement will travel when moving forward.
- When ordering parts please be sure to inform the quantity, part number and
name of each part wanted. It is also important to mention the Serial Number of the
machine, which is placed on the chassis.
The acquisition of any TATU product assures to the original purchaser the following
rights:
- Warranty certificate;
- Instructions manual;
- Technical assistance by the dealer on the equipment delivery.
- The owner has obligation to 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 the product.
- Be sure to read and understand the instructions for adjusting and operating
the equipment as reported in this manual. Check each item referred to obtain
efficient operation and maximum trouble free performance. Remember, an
equipment which is properly lubricated and ajusted saves you time, labor and fuel.

4
Operation Safety
- ONLY WITH A COMPLETE CO-OPERATION OF IMPLEMENT OPERATOR THE
ACCIDENTS CAN BE PREVENTED.
- THIS SYMBOL IS A WARNING DEVICE WHICH SHOULD BE KEPT IN PLACE,
CLEAN AND VISIBLE, WHEN TRANSPORTING THE IMPLEMENT DURING THE
DAY OR NIGHT. USE ACESSORY LIGHTS AND OTHER DEVICES IN ORDER TO
GIVE ADEQUATE WARNING TO OPERATORS OF OTHER VEHICLES
The TATU Disc Harrows are easy to operate, therefore some basic and
indispensable cares are required on their handling.
Have always in mind that safety requires constant attention, observation and
prudence during the operation, transport, maintenance and storage of the machine.
Dear User !
Respect the Ecology.
Do not throw the trash away.
This gesture of goodwill helps to
protect our Environment.
Do not spill combustible oil, battery and
filter residues in the soil. These trashes in
contact with the soil reach the sub layer
which directly damage to the
Environment. Look for information to
delivery these contaminated elements to
whom knows to recycle or re-use them.
Be Careful with the environment
Read and
understand the
information
before realizing
adjustments and
maintenance.
TO THE OPERATOR

5
TO THE OPERATOR
Never use your
hands to check
hydraulic leaks.
Escaping hydraulic
oil under pressure
may have sufficient
force to penetrate
the skin causing
personal injury.
Be careful when
moving around
steep graders to
avoid overturn..
Be careful with the
use of fertilizer or
chemicals.
These products in
contact with skin
may cause
personal injury to
the body.
Never attempt to
change the
adjustments, clean
or lubricate the
implement when in
movement.
Keep the
entrances and
places acessible to
work, clean and
free of the oil and
grease to prevent
accidents.
Never transport
the implement on
rough roads during
the night. When
operating, avoid to
make sharp turns
that may cause tire
to make contact
with the implement.
Never allow riders
on the tractor or
implement unless
an additional seat
is available.
Use extreme
caution when
circulating with the
implement under
electrical power
lines, any contact
may result in severe
shock, injury or
death.
In order to protect
yourself always
wear adequate
clothes and shoes
during the
operations.
Always use the
cylinder transport
locks when
transporting the
implements.

6
TO THE OPERATOR
SAFETY STICKERS
In order to avoid accidents keep
away from the machine when the
same is folding or unfolding.
Mechanical or hydraulic failure can
do the machine to fall down quickly.
DANGER
0503031941
DANGER
TO AVOID INJURY OR DEATH DO
NOT ADJUST/ SERVICE MACHINE
WHILE IN MOTION OR WITH THE
TRACTOR ENGINE RUNNING.
0503031710
TO AVOID INJURY INSTALL THE
HYDRAULIC CYLINDER(S)
LOCKING MECHANISM BEFORE
TRANSPORTING OR SERVICING
THE EQUIPMENT.
WARNING
0503031709

7
TO THE OPERATOR
- During the operation or transport do not allow riders on the tractor or harrow.
Serious personal injuries may result from falling in the path of harrow while in
operation or transport.
- Never allow children playing near or over the harrow, even on operation,
transportation or storing.
- Get a full knowledge of the area before starting the field operation. Delimit
the danger places or the obstacles.
- Work and transport with suitable speed according to the local conditions.
- Use individual equipments for your own protection.
- Wear clothes and adequate shoes. Avoid large or loosen clothes that may
twine on the movable parts.
- Be careful when hitching the harrow to the tractor. Hands or fingers may be
injured when caught between the hitch and the tractor.
- Wear protection gloves when working near the discs.
- When putting the harrow in transport position observe if there aren't people
or animals around.
- Never attempt to change the regulation, clean or lubricate the harrow
when in movement.
- Shut the tractor off before leaving the tractor's seat.
- Only operate the harrow with tractor of appropriate power.
- Verify attentively the transport width in narrow places.
- When disconnecting the disc harrow move it to a level area; preferably a
hard surface, on the field or at the warehouse.
- See the general instructions for safety on the back-cover of this manual.
When Transporting the Implement on Truck or Trailer
To transport the equipment at long distances use a truck or trailer.
However, the safety instructions should be followed carefully:
- Use adequate loading dock to load and unload the equipment. Never
use a ditch bank, this practice could result in serious personal injury.
- Use a suitable hoist when lifting the equipment to the truck or trailer.
- Use chock blocks and safety chains to secure the implement to the truck
or trailer during the transport.
- 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 the 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 other to give adequate warning
to the drivers of other vehicles.

8
TECHNICAL SPECIFICATECHNICAL SPECIFICA
TECHNICAL SPECIFICATECHNICAL SPECIFICA
TECHNICAL SPECIFICATIONSTIONS
TIONSTIONS
TIONS
Note: THE WEIGHT WAS QUOTED WITH Ø 28" DISC BLADES.
Disc Blade Spacing ............................................................................. 270 mm (10.5/8")
Disc Blade Dimension ............................................ Ø 26" x 6.0 mm or Ø 28" x 7.5 mm
Number of Disc Blades .............................................. 28, 32, 36, 40, 44, 48, 52 and 56
Disc Blade Type ................................................................................................. Notched
Lenght................................................................ 262 mm (10.5/16")
Type ............................................................. Greasable or Oil Bath
Lenght................................................................ 262 mm (10.5/16")
Type ..................................................................................... Casting
Axle Diameter .......................................................................................... 41 mm (1.5/8")
Depth of Cut .............................................................. 120 to 220 mm (4.3/4" to 8.5/8")
Type of Hitch ...................................................................................................... Drawbar
Working Speed......................................................................................... 5.0 to 7.0 Km/h
Tires ........................................................................................................... 11L - 15 (52 PSI)
Bearing Assy's {
Spacer Spools {
No. of Working Width Net Weight Tractor Engine
Disc Blades mm (ft. in.) kg (lb.) (hp) Required
28 3,650 (11' 11.3/4") 4,102 (9,024) 180 - 190
32 4,180 (13' 8.9/16") 4,448 (9,786) 200 - 210
36 4,720 (15' 5.13/16") 4,690 (10,318) 220 - 230
40 5,250 (17' 2.11/16") 4,916 (10,815) 240 - 250
44 5,780 (18' 11.9/16") 5,442 (11,972) 260 - 270
48 6,310 (20' 8.7/16") 5,700 (12,540) 280 - 290
52* 6,840 (22' 5.16") 6,712 (14,766) 300 - 310
56* 7,370 (24' 2.3/16") 6,946 (15,281) 310 - 315
Model
* GCRO 52 and 56 Discs with Raised Gang Carriers for Transportation.
GCRO

9
COMPONENTSCOMPONENTS
COMPONENTSCOMPONENTS
COMPONENTS
01 - Main Frame
02 - Front Disc Gang Carrier
03 - Rear Disc Gang Carrier
04 - Hydraulic Cylinder
05 - Stabilizer Bar
06 - Wheelwork System
07 - Hoses
08 - Hose Holder
09 - Drawbar Assembly
10 - Hitch
11 - Transport Safety Lock
12 - Rod Stop
(GCRO 28, 32, 36 and 40)
04
09
10 05
02
03
04
11 06
08
07
01
12

10
COMPONENTSCOMPONENTS
COMPONENTSCOMPONENTS
COMPONENTS
01 - Main Frame
02 - Front Disc Gang Carrier
03 - Rear Disc Gang Carrier
04 - Hydraulic Cylinder
05 - Stabilizer Bar
06 - Wheelwork System
07 - Hoses
08 - Hose Holder
09 - Drawbar Assembly
10 - Hitch
11 - Transport Safety Lock
12 - Rod Stop
(GCRO 44 and 48)
03
05
09
01
04
11 06
10
08 07
04
07
02
12

11
COMPONENTSCOMPONENTS
COMPONENTSCOMPONENTS
COMPONENTS
01 - Main Frame
02 - Foldable Front Disc Gang Carrier
03 - Foldable Rear Disc Gang Carrier
04 - Hydraulic Cylinder
05 - Stabilizer Bar
06 - Wheelwork System
07 - Hoses
08 - Hose Holder
09 - Drawbar Assembly
10 - Hitch
11 - Transport Safety Lock
12 - Rod Stop
(GCRO 52 and 56)
05
09
02
11 06
10
08 07
12
03
01
04
07
04

12
ASSEMBLASSEMBL
ASSEMBLASSEMBL
ASSEMBLYY
YY
Y
Initially choose a flat and clean place. Separate the parts in groups to make it
easy to pick them up and check the quantities against the packing list.
How to use the Wrenches
Wrenches (A) are used to tighten nuts of the disc gangs, one to hold the axle
nut in one side, while tighten the other onto the opposite side, avoid the axle to turn
around.
Wrench (B) is used to tighten bolts and nuts of the bearing assemblies.
Wrench (C) is used to tighten nuts that fix the disc gang carriers to the main
frame.
Wrench (D) is used to adjust both turnbuckles.
Attention: DISC BLADES ARE SHARP AND COULD CUT HANDS, FEET, ETC. WEAR GLOVES
WHEN HANDLING DISC GANGS.
Mounting the Disc Gangs
Before starting the disc gang assembly, verify the correct positioning of the
bearings an spacers according to the following pages:
A
B
D
C

13
ASSEMBLASSEMBL
ASSEMBLASSEMBL
ASSEMBLYY
YY
Y
Scheme to assemble bearings and spacers.
GCRO 28 Discs = 08 bearing + 16 spacers
Spacer
Bearing

14
ASSEMBLASSEMBL
ASSEMBLASSEMBL
ASSEMBLYY
YY
Y
Scheme to assemble bearings and spacers.
GCRO 32 Discs = 12 bearings + 14 spacers
Spacer
Bearing

15
ASSEMBLASSEMBL
ASSEMBLASSEMBL
ASSEMBLYY
YY
Y
Scheme to assemble bearings and spacers.
GCRO 36 Discs = 12 bearings + 18 spacers
Spacer
Bearing

16
ASSEMBLASSEMBL
ASSEMBLASSEMBL
ASSEMBLYY
YY
Y
Scheme to assemble bearings and spacers.
GCRO 40 Discs = 12 bearings + 22 spacers
Spacer
Bearing

17
ASSEMBLASSEMBL
ASSEMBLASSEMBL
ASSEMBLYY
YY
Y
Scheme to assemble bearings and spacers.
GCRO 44 Discs = 16 bearings + 20 spacers
Spacer
Bearing

18
ASSEMBLASSEMBL
ASSEMBLASSEMBL
ASSEMBLYY
YY
Y
Scheme to assemble bearings and spacers.
GCRO 48 Discs = 16 bearings + 24 spacers
Spacer
Bearing

19
ASSEMBLASSEMBL
ASSEMBLASSEMBL
ASSEMBLYY
YY
Y
Scheme to assemble bearings and spacers.
GCRO 52 Discs = 16 bearings + 28 spacers
Spacer
Bearing