Enerpac SCJ User Manual [en, es]
Repair Parts Sheets for this product are available from the Enerpac
web site at www.enerpac.com, or from your nearest Authorized
Enerpac Service Center or Enerpac Sales office.
1.0 IMPORTANT RECEIVING INSTRUCTIONS
Visually inspect all components for shipping damage. Shipping
damage is not covered by warranty. If shipping damage is found,
notify carrier at once. The carrier is responsible for all repair and
replacement costs resulting from damage in shipment.
SAFETY FIRST
2.0 SAFETY ISSUES
Read all instructions, warnings and cautions
carefully. Follow all safety precautions to avoid
personal injury or property damage during system
operation. Enerpac cannot be responsible for damage or injury
resulting from unsafe product use, lack of maintenance or incorrect
product and/or system operation. Contact Enerpac when in doubt
as to the safety precautions and operations. If you have never
been trained on high-pressure hydraulic safety, consult your
distribution or service center for a free Enerpac Hydraulic safety
course.
Failure to comply with the following cautions and warnings could
cause equipment damage and personal injury.
A CAUTION is used to indicate correct operating or maintenance
procedures and practices to prevent damage to, or destruction of
equipment or other property.
A WARNING indicates a potential danger that requires correct
procedures or practices to avoid personal injury.
A DANGER is only used when your action or lack of action may
cause serious injury or even death.
WARNING: Wear proper personal protective gear
when operating hydraulic equipment.
WARNING: Stay clear of loads supported by
hydraulics. A cylinder, when used as a load lifting
device, should never be used as a load holding device.
After the load has been raised or lowered, it must always be
blocked mechanically.
WARNING: USE ONLY RIGID PIECES TO HOLD LOADS.
Carefully select steel or wood blocks that are capable
of supporting the load. Never use a hydraulic cylinder
as a shim or spacer in any lifting or pressing application.
DANGER: To avoid personal injury keep hands
and feet away from cylinder and workpiece
during operation.
WARNING: Do not exceed equipment ratings. Never
attempt to lift a load weighing more than the capacity
of the cylinder. Overloading causes equipment failure
and possible personal injury. The cylinders are designed for a
max. pressure of 700 bar [10,000 psi]. Do not connect a jack or
cylinder to a pump with a higher pressure rating.
Never set the relief valve to a higher pressure than the
maximum rated pressure of the pump. Higher settings
may result in equipment damage and/or personal injury.
WARNING: The system operating pressure must not
exceed the pressure rating of the lowest rated
component in the system. Install pressure gauges in
the system to monitor operating pressure. It is your
window to what is happening in the system.
CAUTION: Avoid damaging hydraulic hose. Avoid
sharp bends and kinks when routing hydraulic hoses.
Using a bent or kinked hose will cause severe backpressure. Sharp bends and kinks will internally damage the
hose leading to premature hose failure.
Do not drop heavy objects on hose. A sharp impact
may cause internal damage to hose wire strands.
Applying pressure to a damaged hose may cause it
to rupture.
IMPORTANT: Do not lift hydraulic equipment by the
hoses or swivel couplers. Use the carrying handle or
other means of safe transport.
CAUTION: Keep hydraulic equipment away from
flames and heat. Excessive heat will soften packings
and seals, resulting in fluid leaks. Heat also weakens
hose materials and packings. For optimum performance do
not expose equipment to temperatures of 65°C [150°F] or
higher. Protect hoses and cylinders from weld spatter.
DANGER: Do not handle pressurized hoses. Escaping
oil under pressure can penetrate the skin, causing
serious injury. If oil is injected under the skin, see a
doctor immediately.
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Instruction Sheet
PT and DA Series
Mono-strand Stressing Jacks
L2944 Rev. B 10/10
Index:
English: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Español: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
Portuguese . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-11
POWERFUL SOLUTIONS. GLOBAL FORCE.
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WARNING: Only use hydraulic cylinders in a coupled
system. Never use a cylinder with unconnected
couplers. If the cylinder becomes extremely
overloaded, components can fail catastrophically causing
severe personal injury.
WARNING: BE SURE SETUP IS STABLE BEFORE
LIFTING LOAD. Cylinders should be placed on a flat
surface that can support the load. Where applicable,
use a cylinder base for added stability. Do not weld or
otherwise modify the cylinder to attach a base or other support.
Avoid situations where loads are not directly centered
on the cylinder plunger. Off-center loads produce
considerable strain on cylinders and plungers. In
addition, the load may slip or fall, causing potentially
dangerous results.
Distribute the load evenly across the entire saddle
surface. Always use a saddle to protect the plunger.
IMPORTANT: Hydraulic equipment must only be
serviced by a qualified hydraulic technician. For repair
service, contact the Authorized ENERPAC Service
Center in your area. To protect your warranty, use only
ENERPAC oil.
WARNING: Immediately replace worn or damaged
parts by genuine ENERPAC parts. Standard grade
parts will break causing personal injury and property
damage. ENERPAC parts are designed to fit properly and
withstand high loads.
3.0 SAFETY INSTRUCTIONS SPECIFIC TO MONO-
STRAND STRESSING JACKS
1. DON'T stress any tendons which contain concrete slurry
inside the anchor cavity. Concrete in the anchor cavity will
prevent proper seating of the wedges. It is safer and less
expensive to clean out concrete slurry than to have to
detension, repair or replace tendons, or repair the jack.
2. DON'T use the jack when you can see that it does not seat
properly on the face of the anchor.
3. DON'T overstress tendons in order to achieve proper
elongation.
4. DON'T allow obstructions in the path of the jack extension.
5. DON'T continue stressing if you suspect that something is not
working properly.
6. DON'T detension with loose plates, spacing shims or piggy
backing.
7. DON'T stand immediate vicinity of the jack, or between the
jack and the pump during stressing or detensioning.
8. DON'T permit other workmen in the immediate area of the
jack or pump during stressing operations.
9. DON'T hammer or beat the jack or jack cylinders.
10. DON'T do anything if you are not sure - ask someone who
knows.
ALL OF THE INFORMATION LISTED IS MEANT TO BE A
GENERAL GUIDELINE FOR OPERATION OF POST TENSION
STRESSING EQUIPMENT. THE POST TENSIONING INSTITUTE
PUBLISHES A “FIELD PROCEDURES MANUAL FOR UNBONDED
SINGLE STRAND TENDONS” WHICH CAN BE OBTAINED BY
CALLING (602) 840-7540.
4.0 PRODUCT DESCRIPTION
4.1 PT Series
For slab-on-grade applications where high volume is required, the
PT Series are the jacks of choice, and are available in a wide
range of configurations to meet any customer requirements.
Spring-Loaded Wedge Seater
PTJ5S - 20 ton jack with spring-loaded wedge seater, 0.5" strand
PTJ6S - 30 ton jack with spring-loaded wedge seater, 0.6" strand
Spring pressure keeps the wedge setter against the wedges in the
anchor as the strand is being stressed. With simple, cost-effective
performance, this is the most popular jack configuration.
Power-Seating Wedge Seater
PTJ5P - 20 ton jack with power-seating wedge seater, 0.5” strand
PTJ6P - 30 ton jack with power-seating wedge seater, 0.6” strand
In this configuration, spring pressure is still used to keep the
wedges in place while stressing. After the desired stressing
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ZU4 electric pump with
VM43LPS post-tensioning valve.
ZU4 electric pump with VM43 control valve
or VM43LPS post-tensioning valve.
Pressure hose connects to "A"
port on control valve.
Power seating hose connects to
"B" port on control valve.
Pressure hose connects to
"A" port on control valve.
FZ-1055 adapter
PTJ5S / PTJ6S
PTJ5P / PTJ6P
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pressure is achieved, the valve on the pump is switched to the
retract position. The valve maintains pressure on the strand.
Engaging the pump causes the wedge setter to push forward and
seat the wedges; when a preset pressure is achieved, the jack will
then begin its return stroke.
Capacities
20 ton jacks -- stress strand up to .5" in diameter. For use with
smaller strand, jack grippers of different sizes are available.
30 ton jacks -- stress strand up to .6" in diameter. For use with
smaller strand, jack grippers of different sizes are available.
4.2 DA Series
The DA series of jacks are manufactured from a single piece of
hardened steel. The durable, lightweight, and compact design
make the DA jacks the tool of choice for elevated construction
projects.
Double-Acting System
5DA1 / 5DA1AL - 20 ton, double-acting jack with power-seating
wedge seater, 0.5" strand
6DA1 - 30 ton, double-acting jack with power-seating wedge seater,
0.6" strand
The DA series jacks are double-acting, meaning that the jacks
extend and retract using hydraulic power. Both jacks use power
wedge seaters to seat the wedges into the anchor. After the
desired stressing pressure is achieved, the valve on the pump is
switched to the retract position. The valve then maintains pressure
on the strand. Engaging the pump causes the wedge seater to
push forward and seat the wedges; when a preset pressure is
achieved, the jack will then begin its return stroke.
Capacities
5DA1 / 5DA1AL, 20 ton jack -- stresses strand up to .5" in
diameter. For use with smaller strand, jack grippers of different
sizes are available.
6DA1, 30 ton jack -- stresses strand up to .6" in diameter. For use
with smaller strand, jack grippers of different sizes are available.
5.0 OPERATION
1. Improper care and use of stressing equipment may result in
property damage, and/or personal injury.
Only trained, qualified personnel should be allowed in the
immediate vicinity of equipment during use.
Personnel doing the stressing and inspectors should remain
clear of the strand being stressed at all times. Never permit
anyone to stand in the immediate vicinity of the jack and the
pump while stressing.
2. Open the jack gripper by pulling back on the gripper handle or
cable.
3. Position the jack on the strand to be stressed and push
forward until the jack nose bears on the anchor. Never attempt
to adjust the position of the jack, either by striking or pushing
after any load has been applied. Remove the jack and
reposition if necessary.
4. Push the jack grippers forward to engage the strand making
sure that:
a. Jack grippers are parallel to avoid damage to themselves or
the strand.
b. Strand is in proper position within jack grippers.
5. Place the pump 4-way valve in stressing position.
6. Operate the pump by use of the pendant switch. (Use of the
pendant switch allows the operator to stand to the side of the
pump, out of harm's way, should the tendon or jack grippers
fail.)
7. On pumps equipped with a sequence valve or automatic
seating valve:
a. Start pump motor and run until proper pressure is indicated
on pressure gauge.
b. Switch 4way valve to retract position.
c. Pressure will remain on the pressure side of the jack, but
gauge pressure will drop to zero and start to rebuild
pressure.
d. When preset pressure is achieved (depending on the
equipment used), the seating plunger will be fully
pressurized, a popping noise will be heard, and the jack will
start to retract.
e. When the jack is fully retracted, stop the pump and switch
the 4-way valve to stressing position. The seating plunger
should fully retract. It is important to stop the pump and
switch the valve quickly to avoid excessive pressure build-
up in the jack after it has completely returned. This
excessive pressure build-up can cause premature failure
of the jack seals, hoses and fittings.
f. Slide the jack forward to release the jack grippers and
remove the jack from the strand.
Note: For jacks without power seating wedge seaters, after proper
gauge pressure is achieved, by switching the valve to the retract
position, the jack will begin to retract.
5DA1 / 5DA1AL / 6DA1
ZU4 electric pump with
VM43LPS post-tensioning valve
Pressure hose connects to "A"
port on control valve.
Retract hose connects to "B"
port on control valve
Pressure seat hose
connects to "GB" port
on control valve
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Las hojas de despiece para este producto estan disponibles en la
página web de Enerpac en la dirección www.enerpac.com,o en su
centro de Asistencia Técnica ó punto de venta Enerpac mas cercano.
1.0 IMPORTANTES INSTRUCCIONES DE RECEPCIÓN
Inspeccione visualmente todos los componentes para verificar si
hay daños de envío. Debido a que la garantía no ampara daños
por envío, si los hubiese, infórmeselo inmediatamente a la
empresa de transportes, puesto que ésta es responsable de todos
los gastos de reparaciones o reemplazo que resulten por daños de
envío.
SEGURIDAD PRIMERO
2.0 ASPECTOS DE SEGURIDAD
Lea todas las instrucciones, advertencias y
precauciones. Acate todas las precauciones de
seguridad para evitar lesiones personales o daños a
la propiedad durante la operación del sistema. ENERPAC no
puede ser responsable de daños o lesiones que resulten de no
usar el producto de forma segura, falta de mantenimiento o
aplicación incorrecta del producto y/u operación del sistema.
Comuníquese con ENERPAC si tuviese dudas sobre las
precauciones de seguridad o sobre las aplicaciones. Si nunca ha
sido capacitado en seguridad hidráulica de alta presión, consulte a
su distribuidor o centro de servicio para obtener un curso de
seguridad gratis denominado ENERPAC Hydraulic.
El no cumplir con las siguientes precauciones y advertencias
podría causar daños al equipo y lesiones personales.
Una PRECAUCIÓN se utiliza para indicar procedimientos y
prácticas de operación o mantenimiento correctos para evitar
daños o la destrucción de equipo u otra propiedad.
Una ADVERTENCIA indica un potencial peligro que requiere de
procedimientos o prácticas correctos para evitar lesiones
personales.
Un PELIGRO se utiliza sólo cuando su acción o falta de acción
podría causar lesiones graves o incluso la muerte.
ADVERTENCIA: Use el equipo de protección personal
adecuado cuando opere equipo hidráulico.
ADVERTENCIA: Manténgase alejado de las cargas
soportadas por sistemas hidráulicos. Cuando un
cilindro se utiliza como dispositivo para levantar
carga, nunca debería usarse como dispositivo para sostener
carga. Después de que la carga haya sido levantada o
descendida, debe bloquearse siempre en forma mecánica.
ADVERTENCIA: USE SÓLO PIEZAS RÍGIDAS PARA
SOSTENER CARGAS. Seleccione cuidadosamente
bloques de acero o de madera capaces de soportar la
carga. Nunca use un cilindro hidráulico como calza o
separador en aplicaciones de levantamiento o presión.
PELIGRO: Para evitar lesiones personales,
mantenga las manos y los pies alejados del
cilindro y pieza de trabajo durante la operación.
ADVERTENCIA: No sobrepase el valor nominal del
equipo. Nunca intente levantar una carga que pese
más de la capacidad del cilindro. Las sobrecargas
ocasionan fallas del equipo y posibles lesiones personales. Los
cilindros están diseñados para resistir una presión máxima de
700 bar. No conecte un gato o cilindro a una bomba cuyo valor
nominal de presión es mayor que el indicado.
Nunca fije la válvula de seguridad a una presión más
alta que el máximo valor nominal de presión de la
bomba. Los ajustes más altos pueden resultar en
daños al equipo y/o lesiones personales.
ADVERTENCIA: La presión de operación del sistema
no debe sobrepasar el valor nominal de presión del
componente con el valor nominal más bajo en el
sistema. Instale manómetros de presión en el sistema para
vigilar la presión de operación. Es su ventana a lo que está
sucediendo en el sistema.
PRECAUCIÓN: Evite dañar la manguera hidráulica.
Evite pliegues y curvas agudos al guiar las mangueras
hidráulicas. Usar una manguera con pliegues o curvas
puede causar severa contrapresión. Los pliegues y curvas
agudos causarán daños internos la manguera, lo que
ocasionará que ésta falle prematuramente.
No deje caer objetos pesados sobre la manguera. Un
impacto directo puede causar daños internos a las
hebras de alambre de la manguera. Aplicar presión a
una manguera dañada puede ocasionar que se quiebre.
IMPORTANTE: No levante el equipo hidráulico por
las mangueras o acopladores giratorios. Use el mango
de transporte u otros medios para transportarla con
seguridad.
PRECAUCIÓN: Mantenga el equipo hidráulico
alejado de las llamas y el calor. El calor en exceso
ablandará las juntas y sellos, lo que resultará en
fugas de líquidos. Asimismo, el calor debilita los materiales de
la manguera y juntas. Para lograr un rendimiento óptimo, no
exponga el equipo a temperaturas de 65°C [150°F]
o mayores. Proteja las mangueras y cilindros de salpicaduras
de soldadura.
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Hoja de Instrucciones
GATOS DE TENSIÓN DE CABLE ÚNICO DE LA
SERIE PT Y DA
L2944 Rev. B 10/10
POWERFUL SOLUTIONS. GLOBAL FORCE.
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