Tatu Marchesan GNLCR User manual

INSTRUCTIONS MANUAL
GNLCR

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. GNLCR
Introduction
The model GNLCR - Hinge Wheel Type Offset Disk Harrow -
is specially designed to cultivate citrus orchards and similars,
with higher performance and premium quality.
The harrow is supplied with higher concavity and smaller
diameter disc blades at the carrier ends. The possibility to
control the cutting depth using the hydraulic cylinder leads
the equipment to perform the harrowing without affecting the
plant roots.
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. Also, read and understand the safety
recommendations.
For any further clarification or in the event of technical
problems that may arise during the service, consult your
dealer and the Technical Support department of the factory.
They can ensure the fully functioning of your TATU disk
harrow.

2Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GNLCR
Table of contents
1. To the owner 3
2. To the operator 4 to 8
Working safely 4 to 6
Truck or trailer transportation 7
Safety stickers 8
3. Technical specifications 9
4. Components 10
5. Assembly 11 to 20
Using the set of wrenches 11
Assembly of bearings and spacer spools 11 & 12
Disc gangs assembly 13 & 14
Assembly of disc gangs on 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 to 28
Lubrication 26 & 27
Harrow maintenance / Maintenance precautions 28
9. Important data 29 to 31
Calculation of hourly income 29
Average income table 30
Torque table 31
10. Important 32

3
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GNLCR
To the owner
General information
Important
Right and left hand side indication are 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 equipment 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 equipment delivery.
However, the owner must check the condition of the equipment on delivery, as well
as knowing the warranty terms.
Special attention should be given to the safety recommendations, operation 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 by accident
on transporting, incorrect utilization or inadequate storage, either
by negligence and/or lack of experience from any person;
• Marchesan is not responsible for any damage caused by unpredictable
situations or the incorrect use of the equipment.
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.
GNLCR
To the operator
Dear user!
Respect the ecology. Do not throw trash away. This gesture of
goodwill helps to protect our environment.
Products such as oil, fuel, filters, batteries and others are
spilled to the soil and can penetrate to the underground layers,
compromising nature. Ecological and conscious disposal of them
should be done.
Working safely
Be careful with the environment
• Security aspects must be 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 cautions to its handling.
Always keep in mind that safety requires constant attention,
observation and prudence during the harrowing, transportation,
maintenance and storage.
Have extreme caution when operating with the power take-off
(PTO). Do not get closer during operation.

5
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GNLCR
To the operator
Never use your bare hands to check hydraulic leaks, the high
pressure can cause several injuries.
Never attempt to change the adjustments, clean or lubricate the
equipment when the same is switched on or in movement.
Be careful while driving on slopes. Risk of overturn.
Prevent that chemical products (i.e.: fertilizers, treated seeds)
make any 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 safety, always wear adequate clothes
and footwear while operating the equipment.
Always use the safety locks to transport the equipment.
Keep access and work places clean and free from oil and
grease. Risk of accidents.

6Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GNLCR
To the operator
• Only trained and qualified personnel is allowed to operate the equipment.
• While working or during transportation, only the presence of the operator is
allowed on the tractor.
• Do not allow children to play near or over the equipment while it is operating,
during transportation or storage.
• Have full knowledge of the soil before starting to 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 personal protective equipment (PPE).
• 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 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 case of emergency, know how to stop the tractor and harrow quickly.
• Always shut down the engine, remove the key and use the handbrake before
leaving the tractor seat.
• Only drive the equipment using tractors with 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 check the general safety instructions on the back of this manual.

7
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GNLCR
Marchesan does not advise the equipment traffic on highways, because
this practice involves serious security risks in addition to being prohibited by the
current existing traffic law. The transportation for long distances should be done
on truck, trailer or others by following these safety guidelines:
• Use adequate ramps to load or unload the equipment. Do not make the loading
on ditch banks, it can cause a serious accident.
• When lifting with a hoist, use the appropriate points to lift.
• Fasten the moving parts that may 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 careful with the load height, especially when passing under electrical
power lines, bridges and others.
• 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.
To the operator
Truck or trailer transportation

8Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GNLCR
To the operator
Safety stickers
The safety stickers warn about the equipment points that require more attention and
they should be kept in good repair. If these stickers become damaged or illegible, replace
them. 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
L U B R I C AT E A N D T I G H T E N D A I L Y
05.03.03.182
7
Model Serial number
GNLCR 05.03.06.0845
Adhesive label

9
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GNLCR
Technical specifications
Model Number of
disc blades
Cutting width
(mm) Weight (kg) Power (cv) on tractor engine
GNLCR
25 1900 985 70 - 75
27 2075 1015 75 - 80
29 2200 1036 80 - 85
33 2550 1106 85 - 90
37 2900 1160 90 - 95
Type: ....................................................................Hinge Wheel Type Offset 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
Tires: .................................................................................... 6.00 x 16 - 6 tarps (40 PSI)
The weights above are obtained using Ø 18 x 3.5 mm disc blades.
NOTE

10 Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GNLCR
Components
01 - Frame 02 - Front chassis
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

11
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GNLCR
Assembly
First of all, put the parts in a clean place to identify them easier. Check the parts using
the list that comes inside the packing box.
Using the set of wrenches
Assembly of bearings and spacer spools
ATTENTION We recommend wearing gloves, especially while assembling the disc
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.
Before starting to assemble the disc gangs, check the correct position of the bearings
and spacer spools, according to the following pages:
C
D
B
A

12 Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GNLCR
Assembly
Assembly of 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

13
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GNLCR
• Place the external lock (A) along with the axis (B).
• Then, tighten the nut (C) passing 5 mm from the axis face.
• Place the disc blades (D), bearings (E) and spacer spools (F), following the
instructions on the previous page.
• Place the internal axis lock (G) and a nut (C-1).
• Place the bolt (H) that fasten the lock nut (I), along with a spring washer and a nut,
only on the external side of the gangs.
• Use the wrenches (A) 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, put the bolt (H-1) and position the lock nut (I-1), fastening it with a spring
washer and nut.
Disc gangs assembly
Assembly
IMPORTANT •Check the correct side of the bearings and spacer spools according
to the concavity of the disc blades.
Grease fitting or plug

14 Marchesan 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

15
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GNLCR
Assembly of disc gangs on the chassis
Assembly
IMPORTANT The rear gang turns dirt to the 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.

16 Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GNLCR
Assembly
The scrapers feature an adjustment to approach or distance them 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

17
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GNLCR
Assembly
• The internal bolt (D) in the front and rear chassis (closed side of the harrow)
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

18 Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GNLCR
Tires assembly
Assembly
B
AC
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