TATU Marchesan RTA 6 User manual

INSTRUCTIONS MANUAL
RTA-6

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. RTA-6
Introduction
The RTA-6 model - TATU backhoe - is manufactured with high
quality standards and presents an excellent operational performance.
Its unique design offers superior resistance, easy operation and low
maintenance.
It is especially developed for agricultural use and it should be
used with wheeled agricultural tractors (in a range from 60 - 70 hp).
Our RTA-6 provides high performances in services such as drainage,
canal opening and preservation, and to install underground lines up
to three meters deep.
It is essential, however, to completely known the backhoe before
starting operations or even to hitch it to the tractor. Please remind
that no person should operate the backhoe without first having read
the safety guidelines and operational instructions.
This instructions manual contains the necessary information for
the best performance of this backhoe. 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 backhoe.

2Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
RTA-6
Table of contents
1. To the owner 3
2. To the operator 4 to 12
Working safely 4 to 6
Truck or trailer transportation 7
Lifting points 8
Safety stickers 9 to 11
Identification of the control levers 12
3. Data sheet 13 to 15
4. Components 16 & 17
5. Assembly 18
Hydraulic pump assembly 18
6. Working preparation 19 to 25
Tractor preparation 19
Hitching to the tractor 19
Cardan shaft coupling to the power take-off 20 & 21
Longitudinal leveling 22
Final adjustments (after hitching) / Unhitching 23
Cautions before operations 24
Precautions with the tractor 24
Precautions with the backhoe transportation 24 & 25
7. Adjustments and operations 26 to 36
Operation techniques 26 to 35
Operations - Important points 36
8. Maintenance 37 to 43
Lubrication / Lubrication points 37
Hydraulic system / Hydraulic system drainage 38
Hose routing 39
Hydraulic circuit 40 & 41
Hydraulic system depletion 42
General maintenance 42
General inspections 43
Maintenance precautions 43
9. Important 44

3
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. RTA-6
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 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 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.
RTA-6
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 near 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.
Have extreme caution when operating with the power
take-off (PTO). Do not get closer during operation.
Be careful with the environment
The RTA-6 backhoe is simple to operate, requiring
however the basic and essential cautions to its handling.
Always keep in mind that safety requires contant attention,
observation and prudence during operation, transportation,
maintenance and storage.
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.

5
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. RTA-6
To the operator
Never use your bare hands to check hydraulic leaks, the high
pressure can cause several injuries.
Prevent that chemical products (i.e.: fertilizers, treated seeds)
make any contact with your skin or clothes.
Keep access and work places clean and 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 transport the equipment.
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.

6Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
RTA-6
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 equipment to the tractor.
• Whenever you are going to transport the equipment, make sure the PTO is
turned off and the boom lock is placed.
• Never drive near ditch or holes. Slipping may occur.
• 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 equipment quickly.
• Always shut down the engine, remove the key and use the handbrake before
leaving the tractor seat.
• 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. RTA-6
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 others by following these safety guidelines:
• Check if the boom lock is placed before transporting the equipment.
• 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 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

8Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
RTA-6
To the operator
Lifting points
The RTA-6 backhoe have adequate lifting points, according to the figure below. When
lifting with a hoist, it is appropriate to hitch all cables on the lifting points.

9
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. RTA-6
To the operator
Safety stickers
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.
A T E N Ç Ã O
A T T E N T I O N
A T E N C I Ó N
5 4 0 R P M
05.03.03.2949
E s t e e q u i p a m e n t o é f a b r i c a d o p a r a
o p e r a r a 5 4 0 R P M n a T D P. To d a s a s
c a p a s d e p r o t e ç ã o d o s c a r d a n s
d e v e m s e r m a n t i d a s n o l o c a l .
This equiment is designed to operate at
540 RPM maximum tractor PTO speed.
All drive line shields must be kept in
place.
Este equipo es fabricado para operar
a 5 40 RPM en la TDP. Todas las capas
de pro tecc ión de los cardan es d eben
ser mantenidas en el local.
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.
P E R I G O
D A N G E R
P E L I G R O
Quando em operação, não permita a entrada de
pessoas na área de giro da Retroescavadeira.
Du rant e el tr abaj o, no p ermi ta qu e pers ona
al guna se ubi que en e l a rea de g iro de la
Retroexcavadora.
At w o rk , d o n ot a l l ow p e opl e t o r ea c h t he
Backhoe swinging area.
05.03.03.0594
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
05.03.03.1827

10 Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
RTA-6
To the operator
Safety stickers
EM CASO DE DÚVIDA CONSULTE NOSSOS TÉCNICOS OU PROCURE O REVENDEDOR.
HAVING DOUBTS CONSULT OUR TECHNICIANS OR CALL ON THE DEALER.
EN CASO DE DUDAS CONSULTE UN TÉCNICO O NUESTRO DISTRIBUIDOR.
0503030770
SPECIAL
PROCEDURES
- IN DESPITE OF OUR IMPLEMENT HAVING WARRANTY ON
QUALITY, IT’S NECESSARY TO TAKE CARE FOR LENGTHEN THE USEFUL LIFE AND TO ASSURE ITS EFFICIENCY.
- CHECK THE OIL LEVEL DAILY IN THE RESERVOIR, WITH ALL
THE CYLINDERS ROD RETRACTED (ON TATU HYDRAULIC SYSTEM).
- MAKE THE PERIODIC OIL REPLACEMENT IN CONFORMITY
WITH “ISO VG 68”.
- IT IS IMPORTANT TO MAKE THE FIRST OIL REPLACEMENT
AFTER THE FIRST 50 OPERATION HOURS.
- AFTER THE FIRST OIL REPLACEMENT ADOPT INTERVALS OF
250 HOURS (TREEMONTHLY) FOR NEW REPLACEMENT.
- IN CASE OF OPERATING IN DIRTY PLACES OR WITH A LOT
OF POWDER, REPLACE THE OIL MORE FREQUENTLY.
- TO REPLACE THE OIL MAKE THE HYDRAULIC SYSTEM
DRAINAGE, AND DO NOT TURN THE TRACTOR ENGINE ON, DURING THE OIL DRAINAGE FROM THE RESERVOIR, OTHERWISE, THE PUMP WOULD BE SERIOUSLY DAMAGED.
- AVOID THE PENETRATION OF IMPURITY IN THE HYDRAULIC
SYSTEM. USE A CLEAN FUNNEL WITH FINE SCREEN TO INTRODUCE THE OIL IN THE RESERVOIR.
- FOR HYDRAULIC SYSTEMS WITH PUMP IN THE TRACTOR, CHECK
THE OIL LEVELFOLLOWING THE INSTRUCTIONS OF THE TRACTOR MANUFACTURER.
- DON’T MIX OILS FROM DIFFERENT BRANDS EVEN WHEN NEW,
BECAUSE THEY AFFECT EACH OTHER AND LOSE THE QUALITY.
- THE OIL FILTER FROM RETURNING LINE SHOULD BE REPLACED
IN THE FIRST 50 SERVICE HOURS, AND AFTER EVERY 250 HOURS (THREEMONTHLY).
- STORE THE GREASES IN CLEANED PLACES AND USE A CLOTH TO
CLEAN THE GREASE FITTINGS.
- WHEN SOME HOSES ARE REMOVED, MAKE SURE THAT THEIR
EXTREMITIES DO NOT GET IN TOUCH WITH THE GROUND.
- EXCESSIVE TIGHTENING DON’T ELIMINATE LEAKS. CHECK FOR
DEFECTS LOOSENING THE NUT ON THE TERMINAL FITTING.
- DON’T USE YOUR HANDS TO CHECK FOR HYDRAULIC LEAKS.
THE HIGH PRESSURE CAN PROVOKE SERIOUS LESION; USE CARDBOARD OR OTHER APPROPRIATE OBJECT.
ALWAYS ATTEMPT TO THE FOLLOWING INSTRUCTIONS. • ATTENTION: EXCESSIVE TIGHTENING DON’T ELIMINATE
LEAKS.
- AUNQUE NUESTRO IMPLEMENTO TENGA CALIDAD GARANTIZADA
SON NECESARIOS CIERTOS CUIDADOS PARA PROLONGAR LA VIDA UTIL Y GARANTIZAR SU EFICIENCIA.
- VERIFIQUE DIARIAMENTE EL NIVEL DE ACEITE EN EL
RESERVATORIO CON TODOS LOS VÁSTAGOS DE LOS CILINDROS RECOGIDOS.
- EFECTUE LOS CAMBIOS PERIÓDICOS DE ACEITE, CONFORME
NORMA “ISO VG 68”.
- ES IMPORTANTE QUE EL PRIMER CAMBIO DE ACEITE SEAEN LAS
PRIMERAS 50 HORAS DE FUNCIONAMIENTO.
- DESPUÉS DEL PRIMER CAMBIO DE ACEITE, PASE A ADOPTAR
INTERVALOS DE 250 HORAS (1 TRIMESTRE) PARA NUEVOS CAMBIOS.
- EN CASO DE OPERAR EN LUGARES DE SUCIEDAD O CON MUCHO
POLVO, CAMBIE EL ACEITE CON MÁS FRECUENCIA.
- PARA EL CAMBIO DE ACEITE, DRENE EL SISTEMA HIDRÁULICO
Y NO DÉ PARTIDA AL MOTOR DEL TRACTOR CUANDO EL ACEITE ESTEA SIENDO DRENADO DEL RESERVATORIO, PUES LA BOMBA SERÍA DANIFICADA.
- EVITE LA PENETRACIÓN DE IMPUREZAS EN EL SISTEMA
HIDRÁULICO. USE UN EMBUDO LIMPIO CON REJILLA FINA PARA INTRODUCIR EL ACEITE EN EL RESERVATORIO.
- PARA SISTEMAS HIDRÁULICOS CON BOMBA TRACTOR, VERIFIQUE
EL NIVEL DEL ACEITE DE ACUERDO CON LAS INSTRUCCIONES DEL FABRICANTE DEL TRACTOR.
- NO MEZCLE ACEITES DE DIFERENTES MARCAS AUNQUE SEAN
NUEVOS, PUES ESTOS SE CONTAMINAN Y PIERDEN LA CALIDAD.
- EL FILTRO DE RETORNO DEL ACEITE DEBE SER SUBSTITUIDO EN
LAS PRIMERAS 50 HORAS DE TRABAJO Y DESPUÉS A CADA 250 HORAS.
- CONSERVE LAS GRASAS EN LOCALES LIMPIOS Y USE UN PAÑO
PARA LIMPIAR LOS PUNTOS DE LUBRICACIÓN.
- CUANDO ALGUNA MANGUERA SEA RETIRADA, CUIDADO PARA
QUE SUS EXTREMIDADES NO TOQUEN EL SUELO.
- APRIETOS EXCESIVOS NO ELIMINAN FILTRACIONES. VERIFIQUE
EL DEFECTO SOLTANDO LA TUERCA GIRATORIA DEL TERMINAL DE LA CONEXIÓN.
- NO VERIFIQUE FILTRACIONES CON LAS MANOS. LA ALTA PRESIÓN
PUEDE PROVOCAR LESIONES CORPORALES. USE CARTÓN.
SIGUEN A BAJO LAS INSTRUCCIONES QUE DEBEN SER OBSERVADAS. • ATENCIÓN: LOS APRIETOS CON MAYOR INTENSIDAD NO RE-
SULTAN EN LA SOLUCIÓN DE LA PÉRDIDA DE ACEITE.
CUIDADOS
ESPECIALES
CUIDADOS
ESPECIAIS
- EMBORA NOSSO IMPLEMENTO TENHA QUALIDADE
GARANTIDA, SÃO NECESSÁRIOS CERTOS CUIDADOS PARA PROLONGAR A VIDA ÚTIL E GARANTIR SUA EFICIÊNCIA.
- VERIFIQUE DIARIAMENTE O NÍVEL DE ÓLEO NO
RESERVATÓRIO COM TODAS AS HASTES DOS CILINDROS RECOLHIDAS. (EM SISTEMAS HIDRÁULICOS TATU).
- EFETUE AS TROCAS PERIÓDICAS DO ÓLEO CONFORME “ISO
VG 68”.
- É IMPORTANTE QUE A PRIMEIRA TROCA DE ÓLEO SEJA FEITA NAS
PRIMEIRAS 50 HORAS DE FUNCIONAMENTO.
- APÓS A PRIMEIRA TROCA DE ÓLEO PASSE AADOTAR INTERVALOS
DE 250 HORAS (1 TRIMESTRE) PARA NOVAS TROCAS.
- EM CASO DE SERVIÇOS EM LOCAIS DE MUITA SUJEIRAOU MUITO
PÓ, TROQUE O ÓLEO COM MAIS FREQUÊNCIA.
- PARA A TROCA DE ÓLEO DRENE O SISTEMA HIDRÁULICO, E
NÃO LIGUE O MOTOR DO TRATOR QUANDO O ÓLEO ESTIVER SENDO DRENADO DO RESERVATÓRIO, POIS A BOMBA FICARÁ SERIAMENTE DANIFICADA.
- EVITE A PENETRAÇÃO DE IMPUREZAS NO SISTEMAHIDRÁULICO.
USE UM FUNIL LIMPO COM PENEIRA FINA PARA INTRODUZIR O ÓLEO NO RESERVATÓRIO.
- PARA SISTEMAS HIDRÁULICOS COM BOMBA DO TRATOR,
VERIFIQUE O NÍVEL DE ÓLEO DE ACORDO COM AS INSTRUÇÕES DO FABRICANTE DO TRATOR.
- NÃO MISTURE ÓLEOS DE MARCAS DIFERENTES MESMO QUANDO
NOVOS, POIS ELES SE CONTAMINAM E PERDEM A QUALIDADE.
- O FILTRO DE RETORNO DO ÓLEO DEVE SER SUBSTITUÍDO NAS
PRIMEIRAS 50 HORAS E DEPOIS A CADA 250 HORAS (1 TRIMESTRE).
- CONSERVEAS GRAXAS EM LOCAIS LIMPOS E USE UM PANO PARA
LIMPAR OS PONTOS DE LUBRIFICAÇÃO.
- QUANDO ALGUMA MANGUEIRA FOR RETIRADA, CUIDADO PARA
QUE SUAS EXTREMIDADES NÃO TOQUEM NO CHÃO.
- APERTOS EXCESSIVOS NÃO ELIMINAM VAZAMENTOS. VERIFIQUE
O DEFEITO DESAPERTANDO A PORCA GIRATÓRIA DO TERMINAL DA CONEXÃO.
- NÃO VERIFIQUE VAZAMENTOS COM AS MÃOS A ALTA PRESSÃO
PODE PROVOCAR LESÕES CORPORAIS. USE PAPELÃO.
OB SE RV E S EM PR E AS INSTRUÇÕES ABAIXO. • ATENCÃO: APERTOS EXCESSIVOS NÃO ELIMINAM VAZA-
MENTOS.

11
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. RTA-6
To the operator
Safety stickers
Model Serial number
RTA-6 05.03.06.2244
Adhesive label
ATENÇÃO / ATTENTION / ATENCIÓN
CUIDADOS NA OPERAÇÃO DA
RETRO ESCAVADEIRA CUIDADOS EN LA OPERACIÓN
DE LA RETROEXCAVADORA
PRECAUTIONS IN THE
BACKHOE OPERATION
O OPERADOR DEVE SE FAMILIARIZAR
COM OS CONTROLES E TER CONHECIMENTO
DE SEGURANÇA, ANTES DE USAR A RETRO.
EL OPERADOR DEBE FAMILIARIZARSE CON
LOS CONTROLES Y TENER CONOCIMIENTOS
DE SEGURIDAD, ANTES DE USAR LA RETRO.
THE OPERATOR SHOULD BE FAMILIAR
WITH THE CONTROLS AND GET
KNOWLEDGEMENT ON SAFE OPERATIONS,
BEFORE USING THE BACKHOE.
.
• Apenas o operador pode acionar a retro,
posicionado em seu
assento.
• Em serviço não permita a aproximação de
pessoas e animais.
• Não carregue passageiros no trator ou na retro.
• Inspecione a área antes de começar o serviço.
Evite trabalhar perto de fios elétricos. Cuidado
com tubulação enterradas, postes, etc.
• Não comece o serviço sem antes abaixar os
braços estabilizadores.
• Nunca use a retro para elevar pessoas ou
animais. Não a use para empurrar coisas ou como
bate-estacas.
• Não amarre cabos ou correntes na retro para
levantar cargas.
• Em locais inclinados evite trabalhar com a
caçamba morro abaixo, o equipamento pode
tombar para a frente ou para o lado.
• Tenha mais cuidado em solos encharcados e
soltos.
• N ã o c a v e m u i t o p r ó x i m o d o s b r a ç o s
estabilizadores. O solo pode desmoronar
debaixo da retro escavadeira.
• Não verifique vazamentos com as mãos. A alta
pressão pode provocar lesões graves, use
papelão ou outro objeto adequado.
• A pressão do sistema deve ser aliviada antes de
se desconectar qualquer tubulação.
• Para estacionar o trator ou para desengatar a
retro, escolha um local plano e baixe os
estabilizadores e a caçamba até o chão.
CUIDADOS NO TRANSPORTE
DA RETRO ESCAVADEIRA
• Verifique se a trava da lança está colocada toda
vez que for transportar a retro.
• Desligue sempre a tomada de potência.
• Esteja atento para a altura da retro escavadeira.
Não passe sob fios baixos ou obstáculos aéreos.
• Não dirija próximo de valas, canais, buracos,
etc, pode ocorrer deslizamentos.
• Em longos percursos e em estradas utilize os
sinais de alerta.
• Apenas el operador puede accionar la retro,
posicionado en su asiento.
• En el trabajo no permita la aproximación de
personas y animales.
• No cargue pasajeros en el tractor o en la retro.
• Inspeccione el área antes de comenzar el
trabajo. Evite áreas próximas de conductores
eléctricos. Cuidado con tubos y cañerias
enterradas, postes, etc.
• No comience el trabajo sin bajar los brazos
estabilizadores.
• Nunca use la retro para levantar personas o
animales. No la use para empujar cosas o para
enterrar estacas.
• No amarre cables o cadenas en la retro para
levantar cargas.
• En locales inclinados evite trabajar con el
cucharón hacia el barranco, la retro puede caer
para adelante o al costado.
• N o e x c a v e p r ó x i m o d e l o s b r a z o s
estabilizadores, el suelo puede desmoronar
debajo de la retro.
• No verifique filtraciones con las manos. La alta
presión puede provocar lesiones graves, use
cartón o cualquier objeto adecuado.
• La presión del sistema debe ser aliviada antes
de desconectar cualquier manguera.
• Para estacionar el tractor o para desenganchar
la retro, escoja un lugar plano, baje los brazos
estabilizadores y el cucharón hasta el suelo.
CUIDADOS EN EL TRANSPORTE
DE LA RETROEXCAVADORA
• Verifique si la trava de la lanza está colocada
siempre que transporte la retro.
• Desligue sempre a tomada de potencia.
• Este atento para la altura de la retro al pasar
debajo de cables o cualquier obstáculo aéreo.
• No conduzca cerca de zanjas, canales, terrenos
accidentados, etc, pueden ocurrir
deslizamientos.
• En trayectos extensos y en carreteras use las
señales de alerta.
• Only the operator can operate the backhoe,
positioned in its seat.
• At working do not allow the approach of people
neither animals.
• Don’t carry passengers in the tractor or in the
backhoe.
• Inspect the area around before starting the
operation. Avoid working close to electrical wires.
Take care with underground pipes, posts, etc.
• Don’t start working without lowering the
stabilizers pad previously.
• Never use the backhoe to elevate people or
animals. Don’t use it to push things or as a pile
driver.
• Don’t fasten cables or chains in the backhoe to lift
loads.
• On slopes, avoid working with the backhoe
bucket to the downhill side, the equiment can
overturn to the front or to the side.
• Don’t dig very close to stabilizers pad. The
ground could collapse under the backhoe.
• Don’t use your hands to check for hydraulic
leaks. The high pressure can cause serious
injuries, use cardboard or other appropriate
object.
• The pressure of the hydraulic system should be
relieved before disconnecting any component.
• To park the tractor or to uncouple the backhoe,
choose a level area and lower the stabilizers and
bucket until the ground.
PRECAUTIONS IN THE
BACKHOE TRANSPORTATION
• Check for the use of the boom lock every time
when transporting the backhoe.
• Always shut down the power take-off (PTO).
• Be careful for the backhoe height. Don’t pass
under low eletric wires or aerial obstacles.
• Don’t drive close to ditches, trenchs, precipitous,
etc, it can cause a mudslide.
• On long courses and on roads use the safety
signs.
05.03.03.0595

12 Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
RTA-6
To the operator
1 2 3 4 5 6
170 kgf/cm²
(2.418 lbs/pol²)
05.03.03.0596
170 kgf/cm²
(2.418 lbs/pol²)
170 kgf/cm²
(2.418 lbs/pol²)
170 kgf/cm²
(2.418 lbs/pol²)
100 kgf/cm²
(1.422 lbs/pol²)
170 kgf/cm²
(2.418 lbs/pol²)
100 kgf/cm²
(1.422 lbs/pol²)
100 kgf/cm²
(1.422 lbs/pol²)
A VÁLVULA PRINCIPAL, NA ENTRADA DO COMANDO, É REGULADA PARA 180 kgf/cm² (2560 lbs/pol²)
THE MAIN VALVE IS CALIBRATED FOR 180 kgf/cm² IN THE CONTROL VALVE INLET. (2,560 psi)
LA VÁLVULA PRINCIPAL, EN LA ENTRADA DEL COMANDO, SE CALIBRA PARA 180 kgf/cm² (2560 lbs/pulg²)
Identification of the control levers
The diagram below shows the operation of the backhoe control levers and there is
an exact copy of the sticker located on the console cover.
STABILIZERS: (Levers no. 01 and no. 06)
Move the lever forth to lower the stabilizers; move it back to lift the stabilizers.
The two stabilizer pads must be completely lowered during operations.
DIPPER: (Lever no. 02)
Move the lever forth to extend the dipper; move it back to retract the dipper.
BOOM: (Lever no. 03)
Move the lever forth to lower the boom; move it back to lift the boom.
BUCKET: (Lever no. 04)
Move the lever forth to dump the load; move it back to grab a load.
HORIZONTAL ROTATION: (Lever no. 05)
Move the lever forth to turn the unit to the left hand side; move it back to turn the unit
to the right hand side.
Never change the control valve adjustments.
IMPORTANT
Right and left hand side mentioned above refers to the position of the operator
on its seat.
NOTE

13
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. RTA-6
Data sheet
General dimensions
A - Digging depth ............................................................................................. 3000 mm
B - Maximum height for dumping...................................................................... 2870 mm
C - Reach (from articulation)............................................................................ 4400 mm
D - Bucket rotation angle .............................................................................160 degrees
C
B
A
D
The measures above are approximated, thus they can vary according to the
brand, model and type of the tractor tires.
NOTE

14 Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
RTA-6
Data sheet
General dimensions
E - Angle of horizontal rotation .....................................................................170 degrees
F - Transportation height.................................................................................. 2650 mm
G - Stabilizers opening at transportation .......................................................... 2050 mm
H - Stabilizers opening during operation........................................................... 3300 mm
E
G
F
H
The measures above are approximated, thus they can vary according to the
brand, model and type of the tractor tires.
NOTE

15
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. RTA-6
Data sheet
Bucket dimension
Width.............................12" ............... 16"..................18" .................20" ..................24"
Number of teeth..............03 .................04................... 04 .................. 04 ...................05
Capacity (liters) ..............51 .................68................... 76 .................. 84 ................. 102
Weight (kg) .....................50 .................58................... 61 .................. 65 ................... 71
Total weight: (RTA-6 with a 16" bucket) ............................................................. 1,010 kg
Hydraulic gear pump with a 35 liters/minute flow at 540 rpm speed
Hydraulic oil tank capacity ................................................................................. 55 liters
Return filter and level indicator
System capacity ................................................................................................ 65 liters
Hydraulic system

16 Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
RTA-6
Components
RTA-6
01 - Seat 02 - Control levers
03 - Console cover 04 - Dipper cylinder
05 - Boom 06 - Dipper
07 - Bucket cylinder 08 - Bucket link
09 - Bucket 10 - Transportation lock
11 - Swing post 12 - Plateau
13 - Hydraulic gear pump 14 - Stabilizer pad
15 - Stabilizer arm 16 - Safety platform
17 - Cardan shaft 18 - Oil reservoir
19 - Ladder
11
12
09
19
15
16
17
18
07
06
08
05
14
14
10
13
04
02
03
01

17
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A. RTA-6
Components
Bucket models
12" 16"
18" 20"
24" Trapezoidal - 12"
Exclusive use to clean canals

18 Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
RTA-6
Assembly
Assemble the hydraulic pump as follows:
• Couple the pump (A) and the pump protection cover (C) to the support (B) using
bolts (D), spring washers and nuts.
• Assemble the cardan shaft (E) to the pump (A).
Hydraulic pump assembly
B
C
E
A
D