Tatu Marchesan GNF-E User manual

INSTRUCTIONS MANUAL
GNF/E
GNFM/E

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. GNF-E / GNFM-E
GNF/E and GNFM/E disk harrows are designed for clod breaking
and leveling the soil, and to incorporate herbicides with a high
performance. These harrows are ideal for large areas.
They have a rugged structure with articulations, which helps the
equipment to follow the soil profile, leading to a great quality
job.
GNFM/E model can work separately and are transported over
wheels, individually.
These harrows have high-resistance to wear and impact notched
disc blades and Duromark regreasable roller bearings, assuring
no leaking and no contamination by abrasive materials.
This instructions manual contains the necessary information for
the best performance of these disk harrows. The operator must
carefullyreadtheentiremanualbeforeworkingwiththeequipment.
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.
Introduction

2Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GNF-E / GNFM-E
Table of contents
1. To the owner 03
2. To the operator 04 to 08
3. Data sheet 09
4. Components 10 & 11
5. Assembly 12 to 23
Using the set of wrenches 12
Assembly of bearings and spacer spools 13 & 14
Disc gangs assembly sequence 15 & 16
Frame junction 17
Assembly of the disc gangs on the frame 17
Front and rear stabilizer bars assembly 18
Hydraulic cylinder assembly 18
Scrapers assembly / Tires assembly (GNFM/E) 19
Assembling the wheelset to the frame (GNFM/E) 20
Traction set assembly (104 and 120 disc blades) 20
Traction set assembly (156 disc blades) 21
Hose support and jack assembly 21
GNF/E and GNFM/E hydraulic circuit (104 and 120 disc blades) 22
GNF/E and GNFM/E hydraulic circuit (156 disc blades) 23
6. Working preparation 24 to 36
Tractor preparation / Hitching to the tractor 24
Hitching for transportation GNFM/E 104 and 120 disc blades 25 to 30
Hitching for transportation GNFM/E 156 disc blades 31 to 36
7. Adjustments and operations 37 to 40
Cutting depth adjustment 37
Ways to start the harrowing 38
Direction of the maneuvers 39
Recommendations / Operations - Important points 40
8. Maintenance 41 to 44
Lubrication / Lubrication points 41 & 42
Harrow maintenance / Maintenance precautions 43
Lifting points 44
9. Important data 45 to 47
Calculation of hourly income 45
Average income table 46
Torque table 47
10. Important 48

3
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GNF-E / GNFM-E
General information
Important
To the owner
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 frame.
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 parts 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.
GNF-E / GNFM-E
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.
To the operator
Dear user!
Respect the ecology. Do not throw trash away. This gesture
of goodwill helps to protect our environment.
Working safely
• 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 they should be carefully
read and observed.
Be careful with the environment
The GNF-E and GNFM-E disk harrows are simple to operate,
requiring however the basic and essential cautions to their handling.
Always keep in mind that safety requires constant attention,
observation and prudence during the transportation, maintenance
and storage.
Read and understand the information before making any
adjustment or maintenance.
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. GNF-E / GNFM-E
To the operator
Never use your bare hands to check hydraulic leaks, the high
pressure can cause 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.
Keep access and work places clean or free from oil and grease.
Risk of accidents.
Never transport the equipment on highways or paved roads
during the night. Avoid that the tractor wheels touch the drawbar in
sharp 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 carry out maintenance operations
and to transport the equipment.

6Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GNF-E / GNFM-E
To the operator
• Only trained and qualified personnel are 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 or to get over the equipment while it is operating,
during transportation or storage.
• Have full knowledge of the soil before starting to work. Use the speed which is
suitable to the conditions of the ground. Provide the delineation of obstacles or
hazardous locations.
• 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 protective devices.
• Be careful while hitching the equipment to the tractor.
• Wear appropriate gloves near the disc blades.
• When setting the harrow to transport position, check if there are no people or
animals close or under the equipment.
• 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 a tractor 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 cover of this manual.

7
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GNF-E / GNFM-E
To the operator
Truck or trailer transportation
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 other 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.
• Underpin the equipment 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 to the truck or trailer. If necessary use banners,
lights and other devices in order to give adequate warning to the other drivers.

8Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GNF-E / GNFM-E
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.
To the operator
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.
Safety stickers
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 LY
05.03.03.1827
Sticker set
Model Sticker Serial number
GNFM/E GNFM/E sticker 05.03.03.4073
Marchesan logo 05.03.03.4022
GNF/E GNF/E sticker 05.03.03.4072
Marchesan logo 05.03.03.4022

9
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GNF-E / GNFM-E
Data sheet
Type:............................................................Hinge Wheel Type Offset Leveling Floating Harrow
Model:..........................................................................................................GNF/E and GNFM/E
Number of disc blades:.....................................................................................104, 120 and 156
- Dimensions:...................................................................................... 22" x 4.5
Disc blade type:...............................................................Concave plain or concave notched
Bearings - Length:.......................................................................................... 192.5 mm
- Type: .................................................................. Regreasable roller bearings
Spacer spools - Length:.................................................................................. 192.5 mm
- Type: ..............................................................................................Cast
Axle diameter: .................................................................................. 1.1/2" (Ø 38.1 mm)
Hitching type:..................................................................................................................Drawbar
Working speed:.......................................................................................................8 to 10 Km/h
Tires*: ................................................................................................ 600 x 16 - 6 tarps (52 PSI)
Model
Number
of disc
blades
Spacing
Cutting
width
(mm)
Net weight (Kg) Tractor required
(cv)
GNF-E GNFM-E
GNF/E
GNFM/E
104
195
9,935 4748 5160 220 - 240
120 11,350 5333 5800 280 - 300
156 15,665 9045 9550 320 - 360
* Only for GNFM/E.

10 Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GNF-E / GNFM-E
Components
01 - Front frame 08 - Hitch bar
02 - Rear frame 09 - Hose support
03 - Front stabilizer bar 10 - Tractor hitch
04 - Rear stabilizer bar 11 - Wheelsets (only for GNFM/E)
05 - Drawbar 12 - Hydraulic cylinders
06 - Upper and lower plates 13 - Front disc gang
07 - Double drawbar 14 - Rear disc gang
GNFM/E - 104 and 120 discs
03
05
06
07
08 09
10
11
12
13
14 11
01
11
02
04
GNF/E - 104 and 120 discs

11
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GNF-E / GNFM-E
Components
01 - Front frame 10 - Front wheelsets
02 - Rear frame 11 - Drawbar for longitudinal transportation
03 - Front stabilizer bar 12 - Jack
04 - Rear stabilizer bar 13 - Hose support
05 - Traction bar 14 - Tractor hitch
06 - Double drawbar 15 - Wheelsets
07 - Drawbar 16 - Hydraulic cylinders
08 - Hitch bar 17 - Front disc gang
09 - Extensor 18 - Rear disc gang
02
01
03
04
05
0608
13
12
14
15
17
15
15
08
16
16
16
GNFM/E - 156 discs
09
10
11
06
07
18
GNF/E - 156 discs

12 Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GNF-E / GNFM-E
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
NOTE We recommend wearing gloves, especially while assembling the disc gangs.
Use two box end wrenches (A) to tighten the nuts of the disc gang, being one to hold
the axle nut on one side while the other tighten the nut to the other end, thereby preventing
the axle from rotating. Check the illustration on page 16.
Use the L shaped socket wrench (B) to tighten the nuts on the bearing bolts.
Use the box end wrench (C) to tighten the nuts of the traction set.
A
C
B

13
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GNF-E / GNFM-E
Assembly
Assembly of bearings and spacer spools
Before starting to assemble the disc gangs, check the correct position of the bearings
and spacer spools:
104 discs
32 bearings
56 spacer spools
Spacer spool
Bearing
120 discs
24 bearings
88 spacer spools

14 Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GNF-E / GNFM-E
Assembly
156 discs
36 bearings
94 spacer spools
Spacer spool
Bearing

15
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GNF-E / GNFM-E
Grease fitting
or plug
Assembly
Disc gangs assembly sequence
IMPORTANT
• Place the outer lock (A) along with the axle (B).
• Tighten the nut (C) passing 5 mm from the axle face.
• Place the disc blades (D), bearings (E) and spacer spools (F), following the
instructions on pages 13 and 14.
• Place the inner lock (G) and the other nut (C-1).
• Place the bolt (H) that fasten the nut lock (I), along with a spring washer and nut
(only on the outer side of the gangs).
• Use the wrenches (A) from page 12 to tighten the gangs, as follows:
1) Place one of the wrenches on the outer side of the gangs (locked side), supporting
it on the ground. (Figure on page 16).
2) On the inner 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 them from moving. (Figure on page 16).
• Lastly, place the bolt (H-1) and position the lock nut (I-1), fastening with a spring
washer and nut.
• Check the correct side of the bearings and spacer spools according
to the concavity of the disc blades.

16 Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GNF-E / GNFM-E
Assembly
C-1
H-1
D
F
E
I
HC
A
G
B
I-1
Axle torque
Axle diameter Ft. - lbs.
1.1/2" 2670
1.5/8" 2890
2.1/8" 3300
2.1/2" 3500 Consult torque table on page 47.
NOTE

17
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. GNF-E / GNFM-E
Assembly
IMPORTANT The rear gang turns earth to the left and the front gang turns earth
to the right. (Check figures on pages 13 and 14).
In the gang assembly to the carriers,
the bearing hangers should remain facing
the disc blades concavity.
Place a bolt (A) with square washer
(B) and pass it through the bearing and
the bearing hanger hole. On top, place a
flat washer and nuts. Do not totally tighten
it yet.
Repeat this
operation for the other
bearings.
As an assembly
option, it is possible to
position the frame on
the ground, being the
bearing hangers facing
up, and lower the disc
gangs individually.
Frame junction
Assembly of the disc gangs on the frame
Approach the front frame (A)
to the rear frame (B) and lock them
using a junction axle (C), flat washer,
castle nut and cotter pin.
C
A
B
A
B

18 Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
GNF-E / GNFM-E
Couple the front (A) and
rear (B) stabilizer bars to
their respective frames using
articulation axles (C), flat
washers, castle nut and cotter
pins.
Assembly
Front and rear stabilizer bars assembly
A
B
Hydraulic cylinders assembly
Couple the hydraulic cylinders
(D) to the stabilizer bars using
articulation axles (E) and cotter pins.
D
E
C