These INSTRUCTIONS are for experienced operators. If you are not fully familiar with the
principles of operation and safe practices for arc welding and cutting equipment, we urge
you to read our booklet, “Precautions and Safe Practices for Arc Welding, Cutting, and
Gouging,” Form 52-529. Do NOT permit untrained persons to install, operate, or maintain
this equipment. Do NOT attempt to install or operate this equipment until you have read
and fully understand these instructions. If you do not fully understand these instructions,
contact your supplier for further information. Be sure to read the Safety Precautions before installing or operating this equipment.
USER RESPONSIBILITY
This equipment will perform in conformity with the description thereof contained in this manual and accompanying labels and/or inserts when installed, operated, maintained and repaired in accordance with the instructions provided. This equipment must be checked periodically. Malfunctioning or poorly maintained equipment
should not be used. Parts that are broken, missing, worn, distorted or contaminated should be replaced immediately. Should such repair or replacement become necessary, the manufacturer recommends that a telephone
or written request for service advice be made to the Authorized Distributor from whom it was purchased.
This equipment or any of its parts should not be altered without the prior written approval of the manufacturer.
The user of this equipment shall have the sole responsibility for any malfunction which results from improper
use, faulty maintenance, damage, improper repair or alteration by anyone other than the manufacturer or a service facility designated by the manufacturer.
READ AND UNDERSTAND THE INSTRUCTION MANUAL BEFORE INSTALLING OR OPERATING.
PROTECT YOURSELF AND OTHERS!
3
Integrated Gas Control (IGC) System - Vision 5x
4
Integrated Gas Control (IGC) System - Vision 5x
Table of Contents
Safety
Safety - English ................................................................................................................................................. 11
Safety - French ....................................................................................................................................................................................19
System Diagram
System Diagrams ..............................................................................................................................................25
Base System + WIC + ACC (all options) ..................................................................................................................................... 26
Descriptions
Power Supplies .................................................................................................................................................29
380/400V Power Supplies ............................................................................................................................................................... 29
460/575V Power Supplies ............................................................................................................................................................... 29
380/400V Power Supplies ............................................................................................................................................................... 30
460/575V Power Supplies ............................................................................................................................................................... 30
Combined Gas Control (CGC) ...........................................................................................................................31
Combined Gas Control Plumbing Schematic ..........................................................................................................................36
Combined Gas Control Electrical Schematic ........................................................................................................................... 37
Replacement Parts ............................................................................................................................................................................ 39
Replacement Parts ............................................................................................................................................................................44
Air Curtain Control (ACC) .................................................................................................................................45
Water Injection Control (WIC) ..........................................................................................................................47
Hoses and Cables ..............................................................................................................................................50
Package Options Available ...........................................................................................................................................................56
Replacement Parts ............................................................................................................................................................................ 59
Elements of a Ground System .......................................................................................................................................................66
Plasma Current Return Path ..........................................................................................................................................................66
Plasma System Safety Ground ...................................................................................................................................................... 67
Rail System Safety Ground .............................................................................................................................................................70
Earth Ground Rod ............................................................................................................................................................................. 71
Ground Rod ......................................................................................................................................................................................... 71
Utility Power Electrical Ground ....................................................................................................................................................72
Check upon receipt .......................................................................................................................................................................... 75
Before Installation ............................................................................................................................................................................. 75
Placement of Power Supply .............................................................................................................................75
Placement of RAS Box ......................................................................................................................................76
Connections on the RAS Box ........................................................................................................................................................76
Connection of Torch to Plasma System ..................................................................................................................................... 80
Connection to the Remote Arc Starter Box ..............................................................................................................................80
Mounting Torch to Machine ........................................................................................................................................................ 81
Preparing to Cut.................................................................................................................................................................................84
Placement of CGC ............................................................................................................................................ 90
Torch Front End Disassembly ........................................................................................................................................................ 95
Torch Front End Assembly .............................................................................................................................................................98
Torch Front End Assembly using the Speedloader ............................................................................................................... 99
Torch Front End Disassembly (for Production Thick Plate) ...............................................................................................100
Torch Front End Assembly (for Production Thick Plate) .....................................................................................................103
Torch Body Maintenance ...........................................................................................................................................................105
Torch Body Removal and Replacement ..................................................................................................................................106
Reduced Consumable Life ........................................................................................................................................................108
Checking for Coolant Leaks ......................................................................................................................................................... 109
Replacement Parts
General ................................................................................................................................................................................................ 113
WARNING: These Safety Precautions are
for your protection. They summarize
precautionary information from the
references listed in Additional Safety
Information section. Before per forming any installation or operating procedures, be sure to read and
follow the safety precautions listed below as well
as all other manuals, material safety data sheets,
labels, etc. Failure to observe Safety Precautions
can result in injury or death.
PROTECT YOURSELF AND OTHERS -Some welding, cutting, and gouging
processes are noisy and require ear
protection. The arc, like the sun, e mits
ultraviolet (UV) and other radiation and can injure
skin and eyes. Hot metal can cause burns. Training
in the proper use of the processes and equipment
is essential to prevent accidents. Therefore:
1. Always wear safety glasses with side shields in
any work area, even if welding helmets, face
shields, and goggles are also required.
2. Use a face shield tted with the correct lter and
cover plates to protect your eyes, face, neck, and
ears from sparks and rays of the arc when operating or observing operations. Warn bystanders
not to watch the arc and not to expose themselves
to the rays of the electric-arc or hot metal.
3. Wear ameproof gauntlet type gloves, heavy
long-sleeve shirt, cuess trousers, high -topped
shoes, and a welding helmet or cap for hair
protection, to protect against arc rays and hot
sparks or hot metal. A ameproo f apron may also
be desirable as protection against radiated heat
and sparks.
4. Hot sparks or metal can lodge in rolled up sleeves,
trouser cus, or pockets. Sleeves and collars
should be kept buttoned, and open pockets
eliminated from the front of clothing.
5. Protect other personnel from arc rays and hot
sparks with a suitable non-ammable partition
or curtains.
6. Use goggles over safety glasses when chipping
slag or grinding. Chipped slag may be hot and
can y far. Bystanders should also wear goggles
over safety glasses.
FIRES AND EXPLOSIONS -- Heat from
ames and arcs can start res. Hot
slag or sparks can also cause res and
explosions. Therefore:
1. Remove all combustible materials well away from
the work area or cover the materials with a protective non-ammable covering. Combustible
materials include wood, cloth, sawdust, liquid
and gas fuels, solvents, paints and coatings,
paper, etc.
2. Hot sparks or hot metal can fall through cracks
or crevices in oors or wall openings and cause a
hidden smoldering re or res on the oor below.
Make certain that such openings are protected
from hot sparks and metal.“
3. Do not weld, cut or perform other hot work until
the work piece has been completely cleaned so
that there are no substances on the work piece
which might produce ammable or toxic vapors.
Do not do hot work on closed containers. They
may explode.
4. Have re extinguishing equipment handy for
instant use, such as a garden hose, water pail,
sand bucket, or portable re extinguisher. Be
sure you are trained in its use.
5. Do not use equipment beyond its ratings. For
example, overloaded welding cable can overheat
and create a re hazard.
6. After completing operations, inspect the work
area to make certain there are no hot sparks or
hot metal which could cause a later re. Use re
watchers when necessary.
7. For additional information, refer to NFPA Standard 51B, "Fire Prevention in Use of Cutting and
Welding Processes", available from the National
Fire Protection Association, Batter y march Park,
Quincy, MA 02269.
ELECTRICAL SHOCK -- Contact with
live electrical parts and ground can
cause severe injury or death. DO NOT
use AC welding current in damp areas,
if movement is conned, or if there is
danger of falling.
11
SAFETY
1. Be sure the power source frame (chassis) is connected to the ground system of the input power.
2. Connect the work piece to a good electrical ground.
3. Connect the work cable to the work piece. A poor
or missing connection can expose you or others
to a fatal shock.
4. Use well-maintained equipment. Replace worn or
damaged cables.
5 . Keep everything dry, including clothing, work area,
cables, torch/electrode holder, and power source.
6. Make sure that all parts of your body are insulated
from work and from ground.
7. Do not stand directly on metal or the earth while
working in tight quarters or a damp area; stand
on dry boards or an insulating platform and wear
rubber-soled shoes.
8. Put on dry, hole-free gloves before turning on the
power.
9. Turn o the power before removing your gloves.
3. Welders should use the following procedures to
minimize exposure to EMF:
A. Route the electrode and work cables together.
Secure them with tape when possible.
B. Never coil the torch or work cable around your
body.
C. Do not place your body between the torch and
work cables. Route cables on the same side of
your body.
D. Connect the work cable to the work piece as close
as possible to the area being welded.
E. Keep welding power source and cables as far
away from your body as possible.
FUMES AND GASES -- Fumes and
gases, can cause discomfort or harm,
particularly in conned spaces. Do
not breathe fumes and gases. Shielding gases can cause asphyxiation.
Therefore:
10. Refer to ANSI/ASC Standard Z49.1 (listed on
next page) for specic grounding recommendations. Do not mistake the work lead for a ground
cable.
ELECTRIC AND MAGNETIC FIELDS — May be
dangerous. Electric current owing through any
conductor causes localized Electric
and Magnetic Fields (EMF). Welding and cutting current creates EMF
around welding cables and welding
machines. Therefore:
1. Welders having pacemakers should consult their
physician before welding. EMF may interfere with
some pacemakers.
2. Exposure to EMF may have other health eects which
are unknown.
1. Always provide adequate ventilation in the work area
by natural or mechanical means. Do not weld, cut, or
gouge on materials such as galvanized steel, stainless steel, copper, zinc, lead, beryllium, or cadmium
unless positive mechanical ventilation is provided.
Do not breathe fumes from these materials.
2. Do not operate near degreasing and spraying operations. The heat or arc rays can react with chlorinated
hydrocarbon vapors to form phosgene, a highly
toxic gas, and other irritant gases.
3. If you develop momentary eye, nose, or throat irritation while operating, this is an indication that
ventilation is not adequate. Stop work and take
necessary steps to improve ventilation in the work
area. Do not continue to operate if physical discomfort persists.
4. Refer to ANSI/ASC Standard Z49.1 (see listing below)
for specic ventilation recommendations.
12
SAFETY
5. WARNING: This product, when used for welding
or cutting, produces fumes or gases which contain chemicals known to the State of California
to cause birth defects and, in some cases, cancer. (California Health & Safety Code §25249.5
et seq.)
CYLINDER HANDLING -- Cylinders,
if mishandled, can rupture and violently release gas. Sudden rupture
of cylinder, valve, or relief device can
injure or kill. Therefore:
1. Use the proper gas for the process and use the
proper pressure reducing regulator designed to
operate from the compressed gas cylinder. Do not
use adaptors. Maintain hoses and ttings in good
condition. Follow manufacturer's operating instructions for mounting regulator to a compressed gas
cylinder.
2. Always secure cylinders in an upright position by
chain or strap to suitable hand trucks, undercarriages, benches, walls, post, or racks. Never secure
cylinders to work tables or xtures where they may
become part of an electrical circuit.
3. When not in use, keep cylinder valves closed. Have
valve protection cap in place if regulator is not connected. Secure and move cylinders by using suitable
hand trucks. Avoid rough handling of cylinders.
4. Locate cylinders away from heat, sparks, and ames.
Never strike an arc on a cylinder.
5. For additional information, refer to CGA Standard P-1,
"Precautions for Safe Handling of Compressed Gases
in Cylinders", which is available from Compressed
Gas Association, 1235 Jeerson Davis Highway,
Arlington, VA 22202.
EQUIPMENT MAINTENANCE -- Faulty or improperly maintained equipment can cause
injury or death. Therefore:
1. Always have qualied personnel perform the instal-
lation, troubleshooting, and maintenance work.
Do not perform any electrical work unless you are
qualied to perform such work.
2. Before performing any maintenance work inside a
power source, disconnect the power source from
the incoming electrical power.
3. Maintain cables, grounding wire, connections, power
cord, and power supply in safe working order. Do
not operate any equipment in faulty condition.
4. Do not abuse any equipment or accessories. Keep
equipment away from heat sources such as furnaces,
wet conditions such as water puddles, oil or grease,
corrosive atmospheres and inclement weather.
5. Keep all safety devices and cabinet covers in position
and in good repair.
6. Use equipment only for its intended purpose. Do
not modify it in any manner.
ADDITIONAL SAFETY INFORMATION -- For more
information on safe practices for electric
arc welding and cutting equipment, ask
your supplier for a copy of "Precautions
and Safe Practices for Arc Welding, Cutting and Gouging", Form 52-529.
The following publications, which are available from
the American Welding Society, 550 N.W. LeJuene Road,
Miami, FL 33126, are recommended to you:
1. ANSI/ASC Z49.1 - “Safety in Welding and Cutting”.
2. AWS C5.1 - “Recommended Practices for Plasma Arc
Welding”.
3. AWS C5.2 - “Recommended Practices for Plasma Arc
Cutting”.
4. AWS C5.3 - “Recommended Practices for Air Carbon
Arc Gouging and Cutting”.
5. AWS C5.5 - “Recommended Practices for Gas Tungsten Arc Welding“.
6. AWS C5.6 - “Recommended Practices for Gas Metal
Arc Welding”.
8. ANSI/AWS F4.1, “Recommended Safe Practices for
Welding and Cutting of Containers That Have Held
Hazardous Substances.”
9. CSA Standard - W117.2 = Safety in Welding, Cutting
and Allied Processes.
13
SAFETY
MEANING OF SYMBOLS - As used throughout this manual: Means Attention! Be Alert! Your
safety is involved.
DANGER
CAUTION
WARNING
Enclosure Class
The IP code indicates the enclosure class, i.e. the degree of protection against penetration by solid objects or
water. Protection is provided against touch with a nger, penetration of solid objects greater than 12mm and
against spraying water up to 60 degrees from vertical. Equipment marked IP21S may be stored, but is not intended to be used outside during precipitation unless sheltered.
CAUTION
Means immediate hazards which, if not avoided, will result in immediate,
serious personal injury or loss of life.
Means potential hazards which could result in personal injury or loss of life.
Means hazards which could result in minor personal injury.
This product is solely intended for plasma cutting. Any other use may
result in personal injury and / or equipment damage.
CAUTION
CAUTION
If equipment is placed on a surface that slopes more
than 15°, toppling over may occur. Personal injury and
/ or signicant damage to equipment is possible.
CAUTION
CAUTION
To avoid personal injury and/or equipment damage,
lift using method and attachment points shown here.
14
Maximum
Tilt Allowed
15°
SAFETY
Safety - Spanish
ADVERTENCIA: Estas Precauciones de
Seguridad son para su protección. Ellas
hacen resumen de información proveniente de las referencias listadas en la sección
"Información Adicional Sobre La Seguridad". Antes
de hacer cualquier instalación o procedimiento de
operación , asegúrese de leer y seguir las precaucio nes de seguridad listadas a continuación así como
también todo manual, hoja de datos de seguridad
del material, calcomanias, etc. El no observar las
Precauciones de Seguridad puede resultar en daño
a la persona o muerte.
PROTEJASE USTED Y A LOS DEMAS-Algunos procesos de soldadura, corte
y ranurado son ruidosos y requiren
protección para los oídos. El arco, como
el sol , emite rayos ultravioleta (UV) y otras radiaciones
que pueden dañar la piel y los ojos. El metal caliente
causa quemaduras. EL entrenamiento en el uso propio
de los equipos y sus procesos es esencial para prevenir
accidentes. Por lo tanto:
1. Utilice gafas de seguridad con protección a los lados
siempre que esté en el área de trabajo, aún cuando esté
usando careta de soldar, protector para su cara u otro
tipo de protección.
2. Use una careta que tenga el ltro correcto y lente para
proteger sus ojos, cara, cuello, y oídos de las chispas y
rayos del arco cuando se esté operando y observando
las operaciones. Alerte a todas las personas cercanas
de no mirar el arco y no exponerse a los rayos del arco
eléctrico o el metal fundido.
3. Use guantes de cuero a prueba de fuego, camisa pesada
de mangas largas, pantalón de ruedo liso, zapato alto
al tobillo, y careta de soldar con capucha para el pelo,
para proteger el cuerpo de los rayos y chispas calientes
provenientes del metal fundido. En ocaciones un delantal
a prueba de fuego es necesario para protegerse de l calor
radiado y las chispas.
4. Chispas y partículas de metal caliente puede alojarse en
las mangas enrolladas de la camisa , el ruedo del pantalón
o los bolsillos. Mangas y cuellos deberán mantenerse
abotonados, bolsillos al frente de la camisa deberán ser
cerrados o eliminados.
5. Proteja a otras personas de los rayos del arco y chispas
calientes con una cortina adecuada no-amable como
división.
6. Use careta protectora además de sus gafas de seguridad
cuando esté removiendo escoria o puliendo.
La escoria puede estar caliente y desprenderse
con velocidad. Personas cercanas deberán usar
gafas de seguridad y careta protectora.
FUEGO Y EXPLOSIONES -- El calor de
las amas y el arco pueden ocacionar
fuegos. Escoria caliente y las chispas
pueden causar fuegos y explosiones.
Por lo tanto:
1
. Remueva todo material combustible lejos del área de
trabajo o cubra los materiales con una cobija a prueba de
fuego. Materiales combustibles incluyen madera, ropa,
líquidos y gases amables, solventes, pinturas, papel, etc.
2. Chispas y partículas de metal pueden introducirse en las
grietas y agujeros de pisos y paredes causando fuegos
escondidos en otros niveles o espacios. Asegúrese de
que toda grieta y agujero esté cubierto para proteger
lugares adyacentes contra fuegos.
3. No corte, suelde o haga cualquier otro trabajo relacionado
hasta que la pieza de trabajo esté totalmente limpia y
libre de substancias que puedan producir gases inamables o vapores tóxicos. No trabaje dentro o fuera de
contenedores o tanques cerrados. Estos pueden explotar
si contienen vapores inamables.
4. Tenga siempre a la mano equipo extintor de fuego para
uso instantáneo, como por ejemplo una manguera con
agua, cubeta con agua, cubeta con arena, o extintor
portátil. Asegúrese que usted esta entrenado para su
uso.
5. No use el equipo fuera de su rango de operación. Por
ejemplo, el calor causado por cable sobrecarga en los
cables de soldar pueden ocasionar un fuego.
6. Después de termirar la operación del equipo, inspeccione
el área de trabajo para cerciorarse de que las chispas o
metal caliente ocasionen un fuego más tarde. Tenga
personal asignado para vigilar si es necesario.
7. Para información adicional , haga referencia a la publicación NFPA Standard 51B, "Fire Prevention in Use of
Cutting and Welding Processes", disponible a través de la
National Fire Protection Association, Batterymarch Park,
Quincy, MA 02269.
CHOQUE ELECTRICO -- El contacto con las partes eléctricas energizadas y tierra puede causar daño severo
o muerte. NO use so ldadura de corriente
alterna (AC) en áreas húmedas, de movimiento connado en lugares estrechos
o si hay posibilidad de caer al suelo.
15
SAFETY
1. Asegúrese de que el chasis de la fuente de poder
esté conectado a tierra através del sistema de
electricidad primario.
2. Conecte la pieza de trabajo a un buen sistema de
tierra física.
3. Conecte el cable de retorno a la pieza de trabajo.
Cables y conductores expuestos o con malas
conexiones pueden exponer al operador u otras
personas a un choque eléctrico fatal.
4. Use el equipo solamente si está en buenas condiciones. Reemplaze cables rotos, dañados o con
conductores expuestos.
5 . Mantenga todo seco, incluyendo su ropa, el área de
trabajo, los cables, antorchas, pinza del electrodo,
y la fuente de poder.
6. Asegúrese que todas las partes de su cuerpo están
insuladas de ambos, la pieza de trabajo y tierra.
7. No se pare directamente sobre metal o tierra mientras trabaja en lugares estrechos o áreas húmedas;
trabaje sobre un pedazo de madera seco o una
plataforma insulada y use zapatos con suela de
goma.
8. Use guantes secos y sin agujeros antes de energizar
el equipo.
9. Apage el equipo antes de quitarse sus guantes.
10. Use como referencia la publicación ANSI/ASC
Standard Z49.1 (listado en la próxima página) para
recomendaciones especícas de como conectar el
equipo a tierra. No confunda el cable de soldar a
la pieza de trabajo con el cable a tierra.
CAMPOS ELECTRICOS Y MAGNETICOS - Son peligrosos. La corriente
eléctrica uye através de cualquier
conductor causando a nivel local
Campos Eléctricos y Magnéticos
(EMF). Las corrientes en el área de corte y soldadura,
crean EMF alrrededor de los cables de soldar y las
maquinas. Por lo tanto:
1. Soldadores u Operadores que use marca-pasos para
el corazón deberán consultar a su médico antes de
soldar. El Campo Electromagnético (EMF) puede
interferir con algunos marca-pasos.
2. Exponerse a campos electromagnéticos (EMF) puede
causar otros efectos de salud aún desconocidos.
3. Los soldadores deberán usar los siguientes procedimientos para minimizar exponerse al EMF:
A. Mantenga el electrodo y el cable a la pieza de
trabajo juntos, hasta llegar a la pieza que usted
quiere soldar. Asegúrelos uno junto al otro con
cinta adhesiva cuando sea posible.
B. Nunca envuelva los cables de soldar alrededor
de su cuerpo.
C. Nunca ubique su cuerpo entre la antorcha y el
cable, a la pieza de trabajo. Mantega los cables a
un sólo lado de su cuerpo.
D. Conecte el cable de trabajo a la pieza de trabajo
lo más cercano posible al área de la soldadura.
E. Mantenga la fuente de poder y los cables de soldar
lo más lejos posible de su cuerpo.
HUMO Y GASES -- El humo y los
gases, pueden causar malestar o
daño, particularmente en espacios
sin ventilación. No inhale el humo
o gases. El gas de protección puede
causar falta de oxígeno.
Por lo tanto:
1. Siempre provea ventilación adecuada en el área
de trabajo por medio natural o mecánico. No solde,
corte, o ranure materiales con hierro galvanizado,
acero inoxidable, cobre, zinc, plomo, berílio, o cadmio a menos que provea ventilación mecánica
positiva . No respire los gases producidos por
estos materiales.
2. No opere cerca de lugares donde se aplique sub-
stancias químicas en aerosol. El calor de los rayos
del arco pueden reaccionar con los vapores de
hidrocarburo clorinado para formar un fosfógeno,
o gas tóxico, y otros irritant es.
3. Si momentáneamente desarrolla inrritación de
ojos, nariz o garganta mientras est á operando, es
indicación de que la ventilación no es apropiada.
Pare de trabajar y tome las medidas necesarias
para mejorar la ventilación en el área de trabajo.
No continúe operando si el malestar físico persiste.
4. Haga referencia a la publicación ANSI/ASC Standard
Z49.1 (Vea la lista a continuación) para recomendaciones especícas en la ventilación.
16
SAFETY
5. ADVERTENCIA-- Este producto cuando se utiliza
para soldaduras o cortes, produce humos o
gases, los cuales contienen químicos conocidos por el Estado de California de causar
defectos en el nacimiento, o en algunos casos, Cancer. (California Health & Safety Code
§25249.5 et seq.)
MANEJO DE CILINDROS-- Los cilindros, si no son manejados correctamente, pueden romperse y liberar
violentamente gases. Rotura repentina del cilindro, válvula, o válvula de
escape puede causar daño o muerte.
Por lo tanto:
1. Utilize el gas apropiado para el proceso y utilize
un regulador diseñado para operar y reducir la
presión del cilindro de gas . No utilice adaptadores. Mantenga las mangueras y las conexiones
en buenas condiciones. Observe las instrucciones
de operación del manufacturero para montar el
regulador en el cilindro de gas comprimido.
2. Asegure siempre los cilindros en posición vertical
y amárrelos con una correa o cadena adecuada
para asegurar el cilindro al carro, transportes, tablilleros, paredes, postes, o armazón. Nunca asegure
los cilindros a la mesa de trabajo o las piezas que
son parte del circuito de soldadura . Este puede ser
parte del circuito elélectrico.
2. Antes de dar mantenimiento en el interior de la
fuente de poder, desconecte la fuente de poder
del suministro de electricidad primaria.
3. Mantenga los cables, cable a tierra, conexciones,
cable primario, y cualquier otra fuente de poder
en buen estado operacional. No opere ningún
equipo en malas condiciones.
4. No abuse del equipo y sus accesorios. Mantenga
el equipo lejos de cosas que generen calor como
hornos, también lugares húmedos como charcos
de agua , aceite o grasa, atmósferas corrosivas y
las inclemencias del tiempo.
5. Mantenga todos los artículos de seguridad y
coverturas del equipo en su posición y en buenas
condiciones.
6. Use el equipo sólo para el propósito que fue
diseñado. No modique el equipo en ninguna
manera.
INFORMACION ADICIONAL DE SEGURIDAD -- Para
más información sobre las prácticas de seguridad de los equipos de arco eléctrico para
soldar y cortar, pregunte a su suplidor por
una copia de "Precautions and Safe Practices
for Arc Welding, Cutting and Gouging-Form
52-529.
Las siguientes publicaciones, disponibles através de
la American Welding Society, 550 N.W. LeJuene Road,
Miami, FL 33126, son recomendadas para usted:
3. Cuando el cilindro no está en uso, mantenga la
válvula del cilindro cerrada. Ponga el capote de
protección sobre la válvula si el regulador no
está conectado. Asegure y mueva los cilindros
utilizando un carro o transporte adecuado. Evite
el manejo brusco de los
MANTENIMIENTO DEL EQUIPO -- Equipo
defectuoso o mal mantenido puede causar daño o muerte. Por lo tanto:
1. Siempre tenga personal cualicado para efectuar l a instalación, diagnóstico, y mantenimiento
del equipo. No ejecute ningún trabajo eléctrico a
menos que usted esté cualicado para hacer el
trabajo.
1. ANSI/ASC Z49.1 - “Safety in Welding and Cutting”.
2. AWS C5.1 - “Recommended Practices for Plasma Arc
Welding”.
3. AWS C5.2 - “Recommended Practices for Plasma Arc
Cutting”.
4. AWS C5.3 - “Recommended Practices for Air Carbon
Arc Gouging and Cutting”.
5. AWS C5.5 - “Recommended Practices for Gas Tungsten Arc Welding“.
6. AWS C5.6 - “Recommended Practices for Gas Metal
Arc Welding”.
8. ANSI/AWS F4.1, “Recommended Safe Practices for
Welding and Cutting of Containers That Have Held
Hazardous Substances.”
9. CSA Standard - W117.2 = Safety in Welding, Cutting
and Allied Processes.
17
SAFETY
SIGNIFICADO DE LOS SIMBOLOS -- Según usted avanza en la lectura de este folleto: Los Símbolos
Signican ¡Atención! ¡Esté Alerta! Se trata de su seguridad.
Signica riesgo inmediato que, de no ser evadido, puede resultar inmediata-
PELIGRO
mente en serio daño personal o la muerte.
ADVERTENCIA
CUIDADO
Clase de envolvente
El código IP indica la clase de envolvente, es decir, el grado de protección contra la penetración de objetos
sólidos o agua. Se provee protección contra el toque con un dedo, penetración de objetos sólidos de un tamaño
superior a 12 mm y contra rocío de agua de hasta 60 grados de la vertical. El equipo marcado IP21S se puede
almacenar, pero no se debe usar en el exterior durante periodos de precipitaciones a menos que esté protegido.
ADVERTENCIA
Signica el riesgo de un peligro potencial que puede resultar en serio daño
personal o la muerte.
Signica el posible riesgo que puede resultar en menores daños a la persona.
Este producto sólo se debe usar para corte por plasma Cualquier otro uso
puede causar lesiones físicas y/o daños en los equipos.
ADVERTENCIA
Si el equipo se coloca sobre una supercie con una
inclinación superior a 15°, se puede producir un volcamiento. Es posible que se produzcan lesiones físicas y/o daños importantes en los equipos.
ADVERTENCIA
Para evitar lesiones físicas y/o daños en los equipos,
levante mediante el método y los puntos de sujeción
que se indican en esta ilustración.
18
Inclinación
máxima permitida
15°
SAFETY
Safety - French
AVERTISSEMENT : Ces règles de sécurité
ont pour but d'assurer votre protection.
Ils récapitulent les informations de pré-
caution provenant des références dans
la section des Informations de sécurité supplémentaires. Avant de procéder à l'installation ou d'utiliser
l'unité, assurez-vous de lire et de suivre les précautions de sécurité ci-dessous, dans les manuels, les
ches d'information sur la sécurité du matériel et
sur les étiquettes, etc. Tout défaut d'observer ces
précautions de sécurité peut entraîner des blessures
graves ou mortelles.
PROTÉGEZ-VOUS -- Les processus de
soudage, de coupage et de gougeage
produisent un niveau de bruit élevé et
exige l'emploi d'une protection auditive.
L'arc, tout comme le soleil, émet des rayons ultraviolets
en plus d'autre rayons qui peuvent causer des blessures
à la peau et les yeux. Le métal incandescent peut causer
des brûlures. Une formation reliée à l'usage des processus et de l'équipement est essentielle pour prévenir les
accidents. Par conséquent:
1. Portez des lunettes protectrices munies d'écrans latéraux
lorsque vous êtes dans l'aire de travail, même si vous devez porter un casque de soudeur, un écran facial ou des
lunettes étanches.
2. Portez un écran facial muni de verres ltrants et de plaques
protectrices appropriées an de protéger vos yeux, votre
visage, votre cou et vos oreilles des étincelles et des rayons
de l'arc lors d'une opération ou lorsque vous observez une
opération. Avertissez les personnes se trouvant à proximité
de ne pas regarder l'arc et de ne pas s'exposer aux rayons
de l'arc électrique ou le métal incandescent.
3. Portez des gants ignifugiés à crispin, une chemise épaisse
à manches longues, des pantalons sans rebord et des
chaussures montantes an de vous protéger des rayons
de l'arc, des étincelles et du métal incandescent, en plus
d'un casque de soudeur ou casquette pour protéger vos
cheveux. Il est également recommandé de porter un tablier
ininammable an de vous protéger des étincelles et de
la chaleur par rayonnement.
4. Les étincelles et les projections de métal incandescent
risquent de se loger dans les manches retroussées, les
rebords de pantalons ou les poches. Il est recommandé
de garder boutonnés le col et les manches et de porter
des vêtements sans poches en avant.
5. Protégez toute personne se trouvant à proximité des étin-
celles et des rayons de l'arc à l'aide d'un rideau ou d'une
cloison ininammable.
6. Portez des lunettes étanches par dessus vos lunettes de
sécurité lors des opérations d'écaillage ou de meulage
du laitier. Les écailles de laitier incandescent peuvent être
projetées à des distances considérables. Les personnes se
trouvant à proximité doivent également porter des lunettes
étanches par dessus leur lunettes de sécurité.
INCENDIES ET EXPLOSIONS -- La
chaleur provenant des ammes ou de
l'arc peut provoquer un incendie. Le
laitier incandescent ou les étincelles
peuvent également provoquer un
incendie ou une explosion. Par conséquent :
1. Éloignez susamment tous les matériaux combustibles
de l'aire de travail et recouvrez les matériaux avec un
revêtement protecteur ininammable. Les matériaux
combustibles incluent le bois, les vêtements, la sciure, le
gaz et les liquides combustibles, les solvants, les p eintures
et les revêtements, le papier, etc.
2. Les étincelles et les projections de métal incandescent
peuvent tomber dans les ssures dans les planchers ou
dans les ouvertures des murs et déclencher un incendie
couvant à l'étage inférieur Assurez-vous que ces ouvertures sont bien protégées des étincelles et du métal
incandescent.
3. N'exécutez pas de soudure, de coupe ou autre travail à
chaud avant d'avoir complètement nettoyé la surface de
la pièce à traiter de façon à ce qu'il n'ait aucune substance
présente qui pourrait produire des vapeurs inammables
ou toxiques. N'exécutez pas de travail à chaud sur des
contenants fermés car ces derniers pourraient exploser.
4. Assurez-vous qu'un équipement d'extinction d'incendie
est disponible et prêt à servir, tel qu'un tuyau d'arrosage,
un seau d'eau, un seau de sable ou un extincteur portatif.
Assurez-vous d'être bien instruit par rapport à l'usage de
cet équipement.
5. Assurez-vous de ne pas excéder la capacité de
l'équipement. Par exemple, un câble de soudage surchargé peut surchauer et provoquer un incendie.
6. Une fois les opérations terminées, inspectez l'aire de
travail pour assurer qu'aucune étincelle ou projection de
métal incandescent ne risque de provoquer un incendie
ultérieurement. Employez des guetteurs d'incendie au
besoin.
7. Pour obtenir des informations supplémentaires, consultez
le NFPA Standard 51B, "Fire Prevention in Use of Cutting
and Welding Processes", disponible au National Fire
Protection Association, Batterymarch Park, Quincy, MA
02269.
CHOC ÉLECTRIQUE -- Le contact avec des pièces élec-
triques ou les pièces de mise à la terre
sous tension peut causer des blessures
graves ou mortelles. NE PAS utiliser un
courant de soudage c.a. dans un endroit
humide, en espace restreint ou si un
danger de chute se pose.
19
SAFETY
1. Assurez-vous que le châssis de la source
d'alimentation est branché au système de mise à
la terre de l'alimentation d'entrée.
2. Branchez la pièce à traiter à une bonne mise de
terre électrique.
3. Branchez le câble de masse à la pièce à traiter et
assurez une bonne connexion an d'éviter le risque
de choc électrique mortel.
4. Utilisez toujours un équipement correctement
entretenu. Remplacez les câbles usés ou endommagés.
5. Veillez à garder votre environnement sec, incluant
les vêtements, l'aire de travail, les câbles, le porteélectrode/torche et la source d'alimentation.
6. Assurez-vous que tout votre corps est bien isolé de
la pièce à traiter et des pièces de la mise à la terre.
7 . Si vous devez eectuer votre travail dans un espace
restreint ou humide, ne tenez vous pas directement sur le métal ou sur la terre; tenez-vous sur
des planches sèches ou une plate-forme isolée et
portez des chaussures à semelles de caoutchouc.
8. Avant de mettre l'équipement sous tension, isolez
vos mains avec des gants secs et sans trous.
9. Mettez l'équipement hors tension avant d'enlever
vos gants.
10. Consultez ANSI/ASC Standard Z49.1 (listé à
la page suivante) pour des recommandations
spéciques concernant les procédures de mise à
la terre. Ne pas confondre le câble de masse avec
le câble de mise à la terre.
CHAMPS ÉLECTRIQUES ET MAGNÉTIQUES — com-
portent un risque de danger. Le
courant électrique qui passe dans
n'importe quel conducteur produit
des champs électriques et magné-
tiques localisés. Le soudage et le
courant de coupage créent des champs électriques
et magnétiques autour des câbles de soudage et
l'équipement. Par conséquent :
1. Un soudeur ayant un stimulateur cardiaque doit
consulter son médecin avant d'entreprendre une
opération de soudage. Les champs électriques et
magnétiques peuvent causer des ennuis pour certains stimulateurs cardiaques.
2. L'exposition à des champs électriques et magné-
tiques peut avoir des eets néfastes inconnus pour
la santé.
3. Les soudeurs doivent suivre les procédures suivantes
pour minimiser l'exposition aux champs électriques
et magnétiques :
A. Acheminez l'électrode et les câbles de masse
ensemble. Fixez-les à l'aide d'une bande adhésive
lorsque possible.
B. Ne jamais enrouler la torche ou le câble de masse
autour de votre corps.
C. Ne jamais vous placer entre la torche et les câbles
de masse. Acheminez tous les câbles sur le même
côté de votre corps.
D. Branchez le câble de masse à la pièce à traiter le
plus près possible de la section à souder.
E. Veillez à garder la source d'alimentation pour le
soudage et les câbles à une distance appropriée
de votre corps.
LES VAPEURS ET LES GAZ -- peuvent
causer un malaise ou des dommages
corporels, plus particulièrement
dans les espaces restreints. Ne respirez pas les vapeurs et les gaz. Le
gaz de protection risque de causer
l'asphyxie. Par conséquent :
1. Assurez en permanence une ventilation adéquate
dans l'aire de travail en maintenant une ventilation naturelle ou à l'aide de moyens mécanique.
N'eectuez jamais de travaux de soudage, de coupage ou de gougeage sur des matériaux tels que
l'acier galvanisé, l'acier inoxydable, le cuivre, le zinc,
le plomb, le berylliym ou le cadmium en l'absence
de moyens mécaniques de ventilation ecaces. Ne
respirez pas les vapeurs de ces matériaux.
2. N'eectuez jamais de travaux à proximité d'une
opération de dégraissage ou de pulvérisation.
Lorsque la chaleur
ou le rayonnement de l'arc entre en contact avec les
vapeurs d'hydrocarbure chloré, ceci peut déclencher
la formation de phosgène ou d'autres gaz irritants,
tous extrêmement toxiques.
3. Une irritation momentanée des yeux, du nez ou de la
gorge au cours d'une opération indique que la ventilation n'est pas adéquate. Cessez votre travail an
de prendre les mesures nécessaires pour améliorer
la ventilation dans l'aire de travail. Ne poursuivez
pas l'opération si le malaise persiste.
4. Consultez ANSI/ASC Standard Z49.1 (à la page
suivante) pour des recommandations spéciques
concernant la ventilation.
20
SAFETY
5. AVERTISSEMENT : Ce produit, lorsqu'il est utilisé
dans une opération de soudage ou de coupage,
dégage des vapeurs ou des gaz contenant des
chimiques considéres par l'état de la Californie
comme étant une cause des malformations
congénitales et dans certains cas, du cancer.
(California Health & Safety Code §25249.5 et
seq.)
MANIPULATION DES CYLINDRES -La manipulation d'un cylindre, sans
observer les précautions nécessaires,
peut produire des fissures et un
échappement dangereux des gaz.
Une brisure soudaine du cylindre, de la
soupape ou du dispositif de surpression peut causer
des blessures graves ou mortelles. Par conséquent :
1. Utilisez toujours le gaz prévu pour une opération et le
détendeur approprié conçu pour utilisation sur les cylindres de gaz comprimé. N'utilisez jamais d'adaptateur.
Maintenez en bon état les tuyaux et les raccords. Observez
les instructions d'opération du fabricant pour assembler
le détendeur sur un cylindre de gaz comprimé.
2. Fixez les cylindres dans une position verticale, à l'aide
d'une chaîne ou une sangle, sur un chariot manuel, un
châssis de roulement, un banc, un mur, une colonne ou
un support convenable. Ne xez jamais un cylindre à un
poste de travail ou toute autre dispositif faisant partie
d'un circuit électrique.
3. Lorsque les cylindres ne servent pas, gardez les soupapes
fermées. Si le détendeur n'est pas branché, assurez-vous
que le bouchon de protection de la soupape est bien en
place. Fixez et déplacez les cylindres à l'aide d'un chariot
manuel approprié. Toujours manipuler les cylindres avec
soin.
4. Placez les cylindres à une distance appropriée de toute
source de chaleur, des étincelles et des ammes. Ne jamais
amorcer l'arc sur un cylindre.
5. Pour de l'information supplémentaire, consultez CGA
Standard P-1, "Precautions for Safe Handling of Compressed Gases in Cylinders", mis à votre disposition par
le Compressed Gas Association, 1235 Jeerson Davis
Highway, Arlington, VA 22202.
ENTRETIEN DE L'ÉQUIPEMENT -- Un équipement entretenu de façon défectueuse ou
inadéquate peut causer des blessures
graves ou mortelles. Par conséquent :
1. Eorcez-vous de toujours coner les tâches d'installation,
de dépannage et d'entretien à un personnel qualié.
N'eectuez aucune réparation électrique à moins d'être
qualié à cet eet.
2. Avant de procéder à une tâche d'entretien à l'intérieur
de la source d'alimentation, débranchez l'alimentation
électrique.
3. Maintenez les câbles, les ls de mise à la terre, les
branchements, le cordon d'alimentation et la source
d'alimentation en bon état. N'utilisez jamais un équipement s'il présente une défectuosité quelconque.
4. N'utilisez pas l'équipement de façon abusive. Gardez
l'équipement à l'écart de toute source de chaleur,
notamment des fours, de l'humidité, des aques d'eau,
de l'huile ou de la graisse, des atmosphères corrosives et
des intempéries.
5. Laissez en place tous les dispositifs de sécurité et tous les
panneaux de la console et maintenez-les en bon état.
6. Utilisez l'équipement conformément à son usage prévu
et n'eectuez aucune modication.
INFORMATIONS SUPPLÉMENTAIRES RELATIVES À LA
SÉCURITÉ -- Pour obtenir de l'information
supplémentaire sur les règles de sécurité à
observer pour l'équipement de soudage à
l'arc électrique et le coupage, demandez un exemplaire du livret "Precautions and Safe Practices for
Arc Welding, Cutting and Gouging", Form 52-529.
Les publications suivantes sont également recommandées et mises à votre disposition par l'American Welding Society, 550 N.W. LeJuene Road, Miami, FL 33126 :
1. ANSI/ASC Z49.1 - “Safety in Welding and Cutting”.
2. AWS C5.1 - “Recommended Practices for Plasma Arc
Welding”.
3. AWS C5.2 - “Recommended Practices for Plasma Arc
Cutting”.
4. AWS C5.3 - “Recommended Practices for Air Carbon
Arc Gouging and Cutting”.
5. AWS C5.5 - “Recommended Practices for Gas Tungsten Arc Welding“.
6. AWS C5.6 - “Recommended Practices for Gas Metal
Arc Welding”.
8. ANSI/AWS F4.1, “Recommended Safe Practices for
Welding and Cutting of Containers That Have Held
Hazardous Substances.”
9. CSA Standard - W117.2 = Safety in Welding, Cutting
and Allied Processes.
21
SAFETY
SIGNIFICATION DES SYMBOLES
Ce symbole, utilisé partout dans ce manuel, signie "Attention" ! Soyez vigilant ! Votre sécurité
est en jeu.
DANGER
AVERTISSEMENT
ATTENTION
Classe de protection de l’enveloppe
L’indice de protection (codication IP) indique la classe de protection de l’enveloppe, c’est-à-dire, le degré de
protection contre les corps solides étrangers ou l’eau. L’enveloppe protège contre le toucher, la pénétration
d’objets solides dont le diamètre dépasse 12 mm et contre l’eau pulvérisée à un angle de jusqu’à 60 degrés de
la verticale. Les équipements portant la marque IP21S peuvent être entreposés à l’extérieur, mais ne sont pas
conçus pour être utilisés à l’extérieur pendant une précipitation à moins d’être à l’abri.
AVERTISSEMENT
Signie un danger immédiat. La situation peut
entraîner des blessures graves ou mortelles.
Signie un danger potentiel qui peut entraîner des
blessures graves ou mortelles.
Signie un danger qui peut entraîner des blessures
corporelles mineures.
Ce produit a été conçu pour la découpe au plasma seulement. Toute autre
utilisation pourrait causer des blessures et/ou endommager l’appareil.
AVERTISSEMENT
L’équipement pourrait basculer s’il est placé sur une
surface dont la pente dépasse 15°. Vous pourriez
vous blesser ou endommager l’équipement de façon
importante.
AVERTISSEMENT
Soulevez à l’aide de la méthode et des points
d’attache illustrés an d’éviter de vous blesser ou
d’endommager l’équipement.
22
Angle
d’inclinaison
maximal
15°
System Diagram
SyStem Diagram
Below are some abbreviations used throughout this manual.
ABBREVIATIONS:
A/C - Air Curtain
ACC - Air Curtain Control
AHC - Automatic Height Control
CGC - Combined Gas Control
ICH - Interface Control Hub
IGC - Integrated Gas Control
PDB - Power Distribution Box
RAS - Remote Arc Starter
WIC - Water Injection Control
24
SyStem Diagram
System Diagrams
The following illustration shows congurations available on the Integrated Gas Control (IGC) System. With this
system, ESAB oers a variety of congurations to meet customer’s requirements. Below are the descriptions of
each conguration.
1. Base System
This system is the basic conguration for the IGC Plasma System. It contains major components, such as the Power
Supply, PT-36 Torch, Remote Arc Starter (RAS), Combined Gas Control (CGC), Automatic Height Control (AHC) and
Vision CNC. This system will meet most customers’ needs in cutting carbon steel, stainless steel, and aluminum. It
also has the functionality of marking on carbon steel and stainless steel with the same torch and the same consumables. By simply alternating cutting and marking mode on the go, this system is capable of cutting and marking in
the same part program without changing the consumables.
2. Base System + ACC
This system includes the above Base System and ESAB Air Curtain Control (ACC). Air Curtain is a device used to
improve the performance of plasma arc when cutting underwater. The Air Curtain output is triggered from the AHC
electrical cabinet.
3. Base System + WIC
This system is congured to introduce the Water Injection Control (WIC), a module used to regulate cut water ow
to shield the cutting process. This conguration is to meet needs of a customer who wants to cut stainless steel
without using H35. This system still uses the standard PT-36 torch, but a dierent set of consumables. Similar to the
dry system, this WIC system can also do marking with water shield.
4. Base System + WIC + ACC (diagram shows all options)
This complete system gives the opportunity for customer to cut carbon steel, stainless steel, and aluminum. Customer has the capability to cut stainless steel with Water Injection Control (WIC), and underwater with the help of
Air Curtain Control (ACC).
25
R
Vision 5X
(EPP-202/362)
IGC Base System
Height
AHC
(Automatic
Control)
Air Curtain
Hose
Air Curtain
CGC-SG or BPR-SG/H2O
PT-36 Torch
Shield Gas Hose
Plasma Gas Hose
CGC-PG
Interconnect Diagram
Power, Pilot Arc, Coolant
RAS-PA
RAS-E(-)
RAS-PSC
Power Cable
Pilot Arc Cable
PS & CC Control Cable
AHC-VDR
RAS-VDR
PDM-PWR
RAS
(Remote Arc Starter)
RAS-TC IN
RAS-ESTOP
RAS-TC OUT
Coolant Return Hose
Coolant Supply Hose
AHC-CAN
AHC-AC IN
AHC-ACC OUT
CAN BUS
AHC Input Power
WIC-AC-IN
BPR
Regulator)
(Back Pressure
BPR-H2O
WIC-H2O OUT
WIC
(Water Injection Control)
WIC-CAN
WIC-AIR IN
WIC-H2O IN
CGC-PWR
ACC-AIR OUT
ACC-IN
CAN-WIC-CAN
CAN-AHC-CAN
CGC-N2/Air
CGC-AIR IN
CGC-O2/H35/F5
ACC
(Air Curtain Control)
ACC-AIR
CGC-Ar
CGC-N2/Air
CGC
CGC-CAN
CGC-CAN
(Combined Gas Control)
BOLD FONT = Cable Connection Label
Optional
Customer Supplied
CAN Hub
PS-PSC
PS-PA
PS(-)
CNC-CAN
CNC-WIC PWR
AHC-PWR
PS-W
Integrated Gas Control Machine Version
R
Base System + WIC + ACC (all options)
PS
(Power Supply)
{
THREE
PHASE
POWER
P/S-CAN
Table
Work
Vision
CNC-ESTOP
CNC
P/S-CAN
Control Box
LIQUID
GAS
POWER
DATA
Descriptions
Description
28
Description
Power Supplies
The IGC system can use dierent plasma power supplies. ESAB provides the EPP-202/362, with various input
voltages and current output for your requirements. For details about our power supplies, please refer to the
power supply’s specic manual.
Current range DC (marking)10A to 36A
Current range DC (cutting)30A to 200A
Power32KW
Open Circuit Voltage (OCV)360 VDC342/360 VDC360 VDC366 VDC
Voltage (3-phase)200/230/460 V380/400 V400 V575 V
Current (3- phase)115/96/50 A RMS60/57 A RMS57 A RMS43 A RMS
Frequency60 Hz50 Hz50 Hz60 Hz
KVA39.5 KVA39.5 KVA39.5 KVA39.5 KVA
Power35.5 KW35.5 KW35.5 KW35.5 KW
Power Factor90%90%90%90%
Input Fuse (recommended)150/125/70 A80/75 A 75 A60 A
200/230/460V,
60Hz,
0558 011310
EPP-202,
380/400V CCC,
50Hz,
0558 011311
EPP-202,
400V CE,
50Hz,
0558011312
EPP-202,
575V,
60Hz,
0558011313
29
Description
The IGC system can use dierent plasma power supplies. ESAB provides the EPP-202/362, with various input
voltages and current output for your requirements. For details about our power supplies, please refer to the
power supply’s specic manual.
Current range DC (marking)10A to 36A
Current range DC (cutting)30A to 360A
Power72KW
Open Circuit Voltage (OCV)360 VDC364 VDC360 VDC360 VDC
Voltage (3-phase)460 V380 V400 V575 V
Current (3- phase)109 A RMS134 A RMS128 A RMS88 A RMS
Frequency60 Hz50 Hz50 Hz60 Hz
KVA88.7 KVA88.5 KVA88.6 K VA87. 7 KVA
Power83.7 KW85.1 KW84.7 KW84.0 KW
Power Factor94%96%96%96%
Input Fuse (recommended)150 A175 A 175 A125 A
EPP-362,
380V CCC,
50Hz,
0558 011315
EPP-362,
400V CE,
50Hz,
0558 011316
EPP-362,
575V,
60Hz,
0558 011317
30
Description
Combined Gas Control (CGC)
p/n 0558010241
The Combined Gas Control regulates the output of the plasma gas (PG)
selected from the three plasma gas inlets (N2/Air, O2/H35 and Argon)
and controls the ow of shield gas (SG). It is powered by 24 Volts (AC
and DC) from the RAS Box and receives commands via the CAN-bus
directly from the CNC.
Like the Shield Gas Box and the Plasma Gas Box, the gas output of the
Combined Gas Control is monitored and fed back through the CAN-bus to CNC for self-diagnosis.
There are four gas inputs (three plasma gases, one shield gas), two gas outputs (SG, PG), and one outboard connection (air curtain). The four inputs are tted with porous bronze lters and "G-1/4" (BSPP) female right-hand
thread. Either of two adaptor tting kits are available to adapt standard metric or CGA hose connections. The gas
ttings and adaptors are listed in the following tables.
Specications
Dimensions: 8.5” (215.9 mm) long x 6.0” (152.4 mm) wide x 4.5” (114. 3 mm) high
Weight: 8.65 lbs. (3.9 kg)
Power Input: 24 VAC/DC
* 6.25”
(158.8 mm)
NOTE:
CAN cable must be routed separate
from torch leads.
4.50”
(114. 3 mm)
* 8.50” (215.9 mm)
including ttings on
front and back
4.75”
(120.7 mm)
31
CNC or
Process
Controller
Customer
Supplied
Gases
Description
Component Locator Designation
(See following component illustrations)
RAS Box
Power
N2/Air
O2/H35
Air
N2/Air
Argon
CAN
B
C
D
J
F
E
A
Combined
Gas Control
PT-36
Plasma
Torch
Shield Gas Hose
Plasma Gas Hose
G
H
J
Air Curtain Hose
Combined Gas Control Component Locator Designations
Note:
Refer to enclosed tables for all available hoses and cables.
Connections
There are two cables connected to the Combined Gas Control: one is 24V power, the other is CAN. There are four
gas inputs (N2/Air, O2/H35, Argon and SG) and two gas outputs (PG and SG). The gas ttings are listed below.
Note:
Chassis must be connected to the machine ground.
ESAB
P/N
206 4113
Inputs
Output
GasFitting
N2/Air1/8” NPT x “A” Inert Gas RH Female631475
O2/H351/4” NPT x “B” Fuel LH Male83390
Argon1/4” NPT x “B” Inert Gas RH Female74S76
SG1/4” NPT x “B” Oxygen RH Male83389
PG
SG
Connection, Male
0.125NPT to "A" Size
32
Description
BA
CEFD
J
J
H
G
33
CAUTION
Description
When connecting fuel gas lines to the oxygen plasma gas input, or reconnecting oxygen after fuel gas use, extra care must be taken to assure that all lines from input through the torch are completely purged.
It is recommended to purge the system and torch lines with nitrogen
for 60 seconds prior to reconnection, then purge the nitrogen for 60
seconds with the new supply gas before cutting.
Metric
Input
Adaptors
CGA
Input
Adaptors
GasFitting
ArgonG-1/4” right hand male x G-1/4” right hand male0558010163
Plasma
ShieldN2/AirG-1/4” right hand male x G-1/4” right hand male0558010163
Air CurtainAirG-1/4” right hand male x “B” Air/Water right hand male0558010165
Plasma
ShieldN2/AirG-1/4” right hand male x “B” Air/Water right hand male0558010165
Air CurtainAirG-1/4” right hand male x “B” Air/Water right hand male0558010165
Outputs
N2/AirG-1/4” right hand male x G-1/4” right hand male0558010163
O2/H35/F5*G-1/4” right hand male x G-1/4” right hand male0558010163
* Another adapator is required when connecting H35/F5.
Part Number - 0558010246 (G-1/4” right hand female x G-1/4” left hand male)
ArgonG-1/4” right hand male x “B” Inert Gas right hand female0558010166
N2/AirG-1/4” right hand male x “B” Inert Gas right hand female0558010166
O2/H35/F5*G-1/4” right hand male x “B” Oxygen right hand male0558010167
* Another adapator is required when connecting H35/F5.
Part Number - 0558010245 (“B” Oxygen right hand female x “B” Fuel Gas left hand male)
SG1/4” NPT x 5/8"-18 LH male10Z30
PG1/4” NPT x “B” Inert Gas right hand female2064113
Air Curtain1/8” NPT x “B” Inert Gas left hand female08030280
Note:
ESAB
P/N
ESAB Kit p/n
0558000254
ESAB Kit p/n
0558000253
The PT-36 Torch is shipped with hose lengths that will not allow the Combined Gas Control to be mounted more than two
meters (6.6 feet) away from the torch. Please make sure the routing of the standard hoses will allow them to bend and connect properly before permanently mounting the Combined Gas Control.
If additional distance between the torch and box is required, the standard torch hose assembly will need extension hoses
to create longer lengths. Extension hoses can be ordered to connect to the existing hose assembly.
The longer hose lengths will require that the pierce time be increased and a longer lead-in time must be specied. This is
due to the additional time required to purge the N2 start gas from the hose before the O2 cut gas becomes aective. This
condition occurs when cutting carbon steel with oxygen.
34
Description
Each gas has a requirement for maximum ow and pressure as shown in chart below:
Gas
Argon125 psi (8.6 bar), 200 SCFH (5.7 SCMH)
Plasma
O2/H35/F5125 psi (8.6 bar) for O2, 75 psi (5.2 bar) for H35/F5, 255 SCFH (7.2 SCMH)
N2/Air125 psi (8.6 bar), 255 SCFH (7.2 SCMH)
Shield
Air CurtainAir
N2/Air125 psi (8.6 bar), 353 SCFH (10.0 SCMH)
Gas &
Pressure
Air (85psi / 5.9bar)
Process
Nitrogen
(125psi / 8.6bar)
Oxygen
(125psi / 8.6bar)
CGC Flow Diagram
Pressure
80 psi (5.5 bar), 1200 SCFH (34.0 SCMH)
Maximum Gas Flow Rates - CFH (CMH)
With PT-36 Torch
269
(7.6)
385
(10.9)
66
(1.9)
Gas Purity
Clean, Dry, Oil Free
Filtered to 25 microns
99.99%, Filtered to 25 microns
99.5%, Filtered to 25 microns
35
Description
Combined Gas Control Plumbing Schematic
V1
Ar
PT1
V2
PV1
O2/H35/F5
PT3
Plasma Gas
N2/Air
N2/Air
V3
PT = Pressure Transducer
PV = Proportional Valve
PT2
∆P
P
P
1
2
PV2
Shield Gas
36
Description
Combined Gas Control Electrical Schematic
Con 1
CAN H Out
CAN L Out
CAN Gnd
CAN H In
CAN L In
NC
NC
NC
CAN
1
2
3
4
5
6
7
8
Con 2
1
2
3
POWER
4
24VAC In
24VAC In
-24VDC In
+24VDC In
CO 1
1
3
5
7
9
11
13
1516
LED 2
2
4
6
8
10
12
14
LED 1
37
CGC Mounting Dimensions
p/n 0558008459
0.281
(7.1mm)
0.313”
(8.0mm)
Description
4.00”
(101.6mm)
0.37”
(9.5mm)
CGC Bottom View
7.5 0 ”
(190. 5mm)
4.72”
(120.0mm)
0.37”
(9.5mm)
M6
0.90”
(22.9mm)
2.52”
(64.0mm)
38
Description
Troubleshooting
The Combined Gas Control has two visible LEDs that indicate its’ status. When the GREEN LED is on, this indicates
power is applied to the unit and the rate at which it is ashing shows the operational status of the unit (refer to
the chart below). If the Green LED is not ON, check the power cable, which should carry 24VDC and 24VAC from
the Control Power Box.
If the Yellow LED is not ON, either there is no power to the unit or the station is not selected.
The Combined Gas Control is highly integrated and is treated as a “Black Box”. If one or more functions of the
unit stop working, the unit must be returned for repair. Contact technical support for troubleshooting and RMA
assistance.
LEDStatusMeaning
OFFPower OFF
Green
YellowONStation is selected
10% ON, 90% OFFBoot loader is running
50% ON, 50% OFFApplication is running
90% ON, 10% OFFApplication is running, CAN is available
Replacement Parts
NOTE:
Additional Parts lists, Schematics and Wiring Diagrams on 279.4 mm x 431.8 mm
(11” x 17”) paper are included inside the back cover of this manual.
39
Description
Remote Arc Starter (RAS)
p/n 0558012260
The Remote Arc Starter is more commonly referred to as the RAS
Box. The RAS box serves as an interface between the plasma controller and the EPP family of plasma power supplies, helping to deliver a stable plasma arc. The RAS box also provides a voltage feedback to the plasma torch lift. This voltage is used to regulate the
torch height while cutting, maintaining the proper height of the
torch above the work piece.
Within the RAS box there is a High Frequency/Voltage Divider circuit board which provides pilot arc ionization and voltage divider
functions to regulate torch height.
Coolant connections and torch power connections are made within
the RAS box and provide an interface between the power supply, coolant circulator and the torch.
Specications
Dimensions: 8.75” (222.3 mm) high x 7.50” (190.5 mm) wide x 17.00” (431.8 mm) deep
Weight: 28.5 lbs. (12.9 kg)
8.75”
(222.3 mm)
17.0 0”
(431. 8 mm)
40
7.5 0 ”
(190. 5 mm)
Remote Arc Starter Connections
A
Description
Note:
Chassis must be connected to the
machine ground.
G, H
LetterDescription
D
C
EF
J
I
A3 Pin Voltage Divider Connection to the Lift
C14 Pin Amphenol Power Supply Connection
DPower Supply Enable
ECoolant Inlet - Flowing to the Torch
Coolant Return - Flowing back to the Coolant Circu-
NOTE: Refer to enclosed tables for all available hoses and cables.
PT-36
Plasma
Torch
42
Description
RAS Box Mounting Dimensions
The box has four M6 x 1 threaded mounting holes shown in pattern below.
If fasteners are threaded into the box from below, the length of the fasteners
CAUTION
5.00”
(12 7.0 0 mm)
must not allow them to extend more than 0.25” beyond the edge of the internal
female threads. If fasteners are too long they can interfere with the components
inside the box.
1.00”
(2.54 mm)
2.75”
(69.85 mm)
RAS Box Mounting Plate Dimensions
p/n 0558008461
8.75"
(222.3 mm)
3.25"
7.50"
(190 .5 mm)
(82.6 mm)
6.50"
(165.1 m m)
13.75”
(349.25 mm)
18. 50"
(469.9 mm)
17. 50"
(444.5 mm)
43
Description
Typical / Recommended E-stop Connection
Always provide the serial number of the unit on which the parts will be used. The serial number is stamped on
the unit nameplate.
To ensure proper operation, it is recommended that only genuine ESAB parts and products be used with this
equipment. The use of non-ESAB parts may void your warranty.
Replacement parts may be ordered from your ESAB Distributor.
Be sure to indicate any special shipping instructions when ordering replacement parts.
Refer to the Communications Guide located on the back page of this manual for a list of customer service phone
numbers.
Replacement Parts
NOTE:
Additional Parts lists, Schematics and Wiring Diagrams on 279.4 mm x 431.8 mm
(11” x 17”) paper are included inside the back cover of this manual.
44
Air Curtain Control (ACC)
Description
p/n 37440
p/n 0558010243
Specications
Dimensions: 6.00” high (152.4 mm) x 9.56” wide (242.8 mm) x 2.50” deep (63.5 mm)
Weight: 4.00 lbs. (1.81 kg)
Input Power: 24 VAC
The Air Curtain is a device used to improve the performance of plasma arc when cutting underwater. The device
mounts onto the torch and produces a curtain of air. This allows the plasma arc to operate in a relatively dry zone
to reduce noise, fume, and arc radiation, even though the torch has been submerged.
The Air Curtain requires a source of compressed air that needs to be clean, dry and oil-free. It should be delivered
at 80 psi @ 1200 cfh (5.5 bar @ 34 CMH).
45
ACC Mounting Dimensions
Description
9.31”
(236.5 mm)
5.81”
(147. 6 mm)
2.91”
(74.0 mm)
1.16”
(29.5 mm)
ACC Component Connections
.312” x .500”
slots
7.00”
(17 7.8 mm)
NOTE:
Cables “A” and “B” are listed in the ACC
Component Connections, INSTALLATION
section of this manual.
A
Compressed Air
46
B
Description
Water Injection Control (WIC)
p/n 0558009370
The Water Injection Control (WIC) regulates the ow of cut water
supplied to the plasma torch. This water is used as a shield in
the cutting process. This shield assists in forming the plasma arc
and also cools the cut surface. The selection and output of cut
water is performed and controlled by the ICH. The WIC consists
of a water regulator, pump and a closed feedback loop between
proportional valve and ow sensor. This is controlled by a local
Process Control Unit (PCU). The PCU communicates via CAN to
the ICH while controlling the proportional and solenoid valves.
The WIC is monitored and sends feedback signals through the CAN bus to the ICH for diagnostic purposes.
For more detailed information on the Water Injection Control (WIC), see manual #0558009491.
Specications
Dimensions (Electrical module)163 mm x 307 mm x 163 mm (6.4 in x 12.1 in x 6.4 in)
Dimensions (Pump Module)465 mm x 465 mm x 218 mm (18.3 in x 18.3 in x 8.6 in)
Weight (Electrical module)15 lb. dry (6.8 kg)
Weight (Pump Module)60 lb. dry (27.2 kg)
Tap water with an allowable water hardness of <2 ppm as CaCO3 and Conductivity:
1/2 HP, 230 VAC single phase, 60 Hz, 1725 RPM, 3.6A current,
Temperature rating: 150
Inlet water pressure: 100 psi (6.9 bar) maximum
Outlet water pressure: 20 psi (1.4 bar) factory set
Maximum pressure range: 0 - 200 psi (0 - 13.8 bar)
Temperature range: -40
Supply voltage: 24 VDC
Pressure signal output: 4 mA for 0 psi, 20 mA for 200 psi (13.8 bar). Regulated to 1 to 5 VDC
with 250 ohm resistor.
- 212o F (-20o - 100o C), Input power: 5 - 24 VDC @ 50 mA maxi-
o
- 125o C)
o
F (66o C)
o
F (66o C)
47
Description
Automatic Height Control (AHC)
p/n 0560947166
The B4 lift assembly provides vertical motion for the PT-36 plasma torch, using a typical motor, screw, and slide conguration. The motor turns an enclosed spindle screw,
which in turn raises/lowers the lifting plate along linear rails. Directional commands
given from the plasma controller determine the direction of the travel. Fixed limit
switches are included to prevent upper and lower lift’s over travel.
The lift assembly also contains components necessary to control height over work
surfaces; initial, piercing, and cutting heights are encoder controlled during the plasma cycle. During part production, height is automatically controlled by taking voltage measurements between the torch electrode and work surface.
The B4 lifts utilize an Omni Soft Touch® assembly to protect the system during station crashes. Proximity switches monitor torch position in the torch holder. If the
torch is jarred in any direction, the process will stop and an error report will be sent
to the controller.
Specications
Dimensions:
6.0” (152.4 mm) wide x 8.5” (215.9 mm) deep x 31.5” (800.1 mm) high
Lift Speed: 315 IPM [8.0m per minute]
Vertical Travel: 8.00” [200.0 mm]
Approximate Weight including torch holder: 85 lbs. [38.5 kg]
Torch Barrel Size: 85.7 mm
IHS Accuracy: ± 0.5 mm
Component Tolerances
Encoder Accuracy: ± 0.25 mm
Voltage Accuracy: ± 1 volt
48
Description
B4 Mounting Dimensions
B4 lift hole patterns are provided below to aid end users in mounting the plasma station. An optional plasma
bracket/nut plate is available. For more specic details, please refer to the B4 Lift manual.
The PT-36 Mechanized Plasmarc Cutting Torch is a plasma arc
torch factory assembled to provide torch component concentricity and consistent cutting accuracy. For this reason, the
torch body can not be rebuilt in the eld. Only the torch frontend has replaceable parts.
The purpose of this section is to provide the operator with all
the information required to install and service the PT-36 Mechanized Plasmarc Cutting Torch. Technical reference material is
also provided to assist in troubleshooting the cutting package.
Specications
TYPE: WATER COOLED, DUAL GAS, MECHANIZED PLASMARC CUTTING TORCH
CURRENT RATING: 1000 AMPS 100% DUTY CYCLE
MOUNTING DIAMETER: 2 “ 50.8 MM
LENGTH OF TORCH WITHOUT LEADS: 16.7 “42 C M
IEC 609747 VOLTAGE RATING: 500 VOLTS PEAK
STRIKING VOLTAGE MAXIMUM VALUE OF HIFREQUENCY VOLTAGE: 8000 VAC
MINIMUM COOLANT FLOWRATE: 1.3 GPM 5.9 L/MIN
MINIMUM COOLANT PRESSURE AT INLET: 175 PSIG 12.1 BAR
MAXIMUM COOLANT PRESSURE AT INLET: 200 PSIG 13.8 BAR
MINIMUM ACCEPTABLE RATING OF COOLANT RECIRCULATOR: 16,830 BTU/HR 4.9 KW AT HIGH COOLANT
TEMPERATURE AMBIENT = 45°F 25°C AND 1.6 USGPM 6 L/MIN
MAXIMUM SAFE GAS PRESSURES AT INLETS TO TORCH: 125 PSIG 8.6 BAR
SAFETY INTERLOCKS: THIS TORCH IS INTENDED FOR USE WITH ESAB PLASMARC CUTTING SYSTEMS AND CONTROLS
EMPLOYING A WATER FLOW SWITCH ON THE COOLANT RETURN LINE FROM THE TORCH. REMOVAL OF THE
NOZZLE RETAINING CUP TO SERVICE THE TORCH BREAKS THE COOLANT RETURN PATH.
55
7.54"
(191. 5 mm)
Description
2.00"
(50.8 mm)
9.13"
(231.9 mm)
6.17"
(156.7 mm)
10.50" (266.7 mm)
Length of Sleeve
Package Options Available
PT-36 package options available through your ESAB dealer. See Replacement Parts section for component part
numbers.
Optional Accessories
Bubble Muer - When used in conjunction with a water pump recirculating water
from the table and by using compressed air, this device creates a bubble of air which
enables a PT-36 Plasmarc Cutting Torch to be used underwater with less sacrice of cut
quality. This system also permits operation above water as the ow of water through
the muer reduces fume, noise, and arc U.V. Radiation.
(for installation/operation instructions see manual 0558006722).............................. 37439
Air Curtain - This device when supplied with compressed air is used to improve the
performance of the PT-36 Plasmarc Cutting Torch when cutting underwater. The device mounts onto the torch and produces a curtain of air. This allows the plasma arc to
operate in a relatively dry zone, even though the torch has been submerged to reduce
noise, fume, and arc radiation. To be used in underwater applications only.
(for installation/operation instructions see manual 0558006404) ............................. 37440
05580038041Torch Body PT-36 w/O-rings
000448564810O-ring 1.614 ID x .070
05580025332Bae, 4 Hole x .032
05580016252Bae, 8 Hole x .047
05580025341Bae, 4 x .032 Reverse
05580025301Bae, 8 x .047 Reverse
05580054571Bae, 4 Hole x .022
05580039243Electrode Holder PT-36 w/O-ring
000448567110O-ring .364 ID x .070
00044700452Nozzle Retaining Cup, Standard
00044700301Shield Gas Diuser, Low Current
00044700315Shield Gas Diuser, Standard
00044701151Shield Gas Diuser, Reverse
00044700462Shield Retainer, Standard
05580038582Contact Ring w/screw
00044700446Screw, Contact Ring
00044700492Hex Key Wrench .109"
05580071051Nut Driver 7/16" (Electrode tool)
05580039181Electrode Holder Tool PT-36
00044708691Silicon Grease DC-111 5.3oz
Additional Parts lists, Schematics and Wiring Diagrams on 279.4 mm x 431.8 mm
(11” x 17”) paper are included inside the back cover of this manual.
59
Description
60
Installation
InstallatIon
62
InstallatIon
Installation
General
FAILURE TO FOLLOW INSTRUCTIONS COULD LEAD TO DEATH, IN
WARNING
Unpacking
•Inspect for transit damage immediately upon receipt.
•Remove all components from shipping container and check for loose parts in container.
•Inspect louvers for air obstructions.
Check upon receipt
1. Verify all the system components on your order have been received.
2. Inspect the system components for any physical damage that may have occurred during shipping. If there
is evidence of damage, please contact your supplier with the model number and serial number from the
nameplate.
JURY OR DAMAGED PROPERTY. FOLLOW THESE INSTRUCTIONS TO
PREVENT INJURY OR PROPERTY DAMAGE. YOU MUST COMPLY WITH
LOCAL, STATE AND NATIONAL ELECTRICAL AND SAFETY CODES.
Before Installation
ALL INSTALLATION AND SERVICE OF THE ELECTRICAL AND PLUMB
ING SYSTEMS MUST CONFORM TO NATIONAL AND LOCAL ELEC
WARNING
Locate the major components to the right position prior to making electrical, gas, and interface connections.
Refer to the system interconnection diagrams for major components placement. Ground all major components
to earth at one point. To prevent leaks, make sure to tighten all gas and water connections with specic torque.
TRICAL AND PLUMBING CODES. INSTALLATION SHOULD BE PER
FORMED ONLY BY QUALIFIED, LICENSED PERSONNEL. CONSULT
YOUR LOCAL AUTHORITIES FOR ANY REGULATION ISSUES.
63
InstallatIon
Grounding
Introduction
Machine grounding is an important part of the installation process, which can be greatly simplied if prepared
in advance. The most dicult part of the grounding process is designing and installing a low impedance Earth
ground rod. However, the better the Earth ground rod, the less chance there is of having electromagnetic
interference problems after the installation is complete.
Most national electric codes address grounding for the purpose of re prevention and short circuit protection;
they do not address equipment protection and electromagnetic interference noise reduction. Therefore, this
manual presents more stringent requirements for machine grounding.
WARNING
ELECTRIC SHOCK HAZARD.
IMPROPER GROUNDING CAN CAUSE SEVERE
INJURY OR DEATH.
IMPROPER GROUNDING CAN DAMAGE MA
CHINE ELECTRICAL COMPONENTS.
MACHINE MUST BE PROPERLY GROUNDED
BEFORE PUTTING IT INTO SERVICE.
THE CUTTING TABLE MUST BE CONNECTED
TO MACHINE EARTH GROUNDING ROD.
64
InstallatIon
Grounding Overview
There are three parts to a ground system;
•Component or "chassis" ground
•Earth ground
•Protective Earth ground
Component grounding connects all pieces to a
single component, like the machine chassis, which
is then connected to a common point known as the
star point. This provides a path for electromagnetic
interference (EMI) from the enclosure to ground.
A common symbol used to identify
a chassis ground on drawings.
A common symbol used to identify
an earth ground on drawings.
An earth ground provides a electromagnetic
interference (EMI) to return to its source.
A protective earth (PE) ground provides a safe path
for fault current. Without a properly grounded
system, an unintended path through people or
sensitive equipment may be found, resulting in
serious injury, death, and/or premature equipment
failure.
This section focuses on machines with a plasma
cutting system. Machines with plasma cutting
capability are particularly prone to electromagnetic
interference problems and often utilize dangerous
voltages and currents. All machines must have
electrical components grounded and attached to
an earth ground, regardless of process type (shape
cutting, marking, or other material preparation).
A common symbol used to identify
a protective earth (PE) ground.
65
Basic Layout
InstallatIon
The electrical ground layout is similar for both large and small machines. The chassis ground , plasma
positive electrical lead and the rail ground cables are attached to a common point on the cutting
table. This common connection is referred to as a star point (see illustration below). One cable connects
the star point to the Earth ground rod . The size of ground cables is dependant on the maximum current
output of the plasma power supply . Specication of cable sizes is discussed later in this manual. Some
country standards or directives require a separate ground rod for the plasma power supply. Consult your
machine schematics for more information.
68
7
1
5
9
4
3
Note: The three phase electrical input to the plasma
power supply must include
an electrical ground.
66
2
8
This illustration demonstrates multiple ground
cables fastened with a single bolt to create a star
point . The location of the star point on the
cutting table will vary.
8
InstallatIon
Elements of a Ground System
The ground system consists of ve main components:
•plasma current return path
•plasma system safety ground
•utility power electrical ground
•cutting machine chassis ground
•rail system safety ground.
Ensure provisions are made during the installation for each of these elements for creating a complete ground
system.
Plasma Current Return Path
The return path ground cable is the most important element of the ground system. It completes the path for
the plasma current. Solid, low impedance, well maintained electrical connections are a necessity.
The plasma cutting current is generated by the plasma power supply . A welding cable carries this current
from the negative (-) connection in the plasma power supply through the x axis cable chain to the
torch. The current then arcs to the work piece on the cutting table. The current path must be closed so
that the current can easily return to its source. This is done by connecting the cutting table to the positive (+)
connection on the plasma power supply. If the return path ground cable is not connected, the plasma
system will not work. There will be no way for the arc to establish between the torch and the work piece. If
the cable is connected, but the connections have a very high resistance, it will limit the current of the arc, and
cause dangerous voltage levels between system components.
1
5
3
2
2
4
4
1
3
5
67
InstallatIon
The only way to ensure that all components are at the same voltage level (same potential), and thus eliminate
the possibility of being shocked, is to ensure that all interconnections are making good electrical contact.
Good electrical contact requires that connections are made with bare metal to metal contact, the connections
are very tight, and are protected from rust and corrosion. Use a grinder or wire wheel to clean all paint, rust,
and dirt from the surface when connecting cable lugs to any metal surface. Use an electrical joint compound
between cable lugs and metal surfaces to prevent future rust and corrosion. Use the largest size bolts, nuts,
and washers possible, and tighten fully. Use lock washers to ensure that connections stay tight.
Plasma System Safety Ground
The plasma system safety ground (or ground rod)
serves several important purposes. It provides:
•Frame voltage for personnel safety by ensuring that there are no potential dierences between system components and
building components.
•A stable signal reference for all digital and
analog electrical signals on the cutting
machine.
•Helps control electromagnetic Interference (or EMI).
•Provides a discharge path for short circuits and high voltage spikes, such as
those caused by lightening strikes.
68
InstallatIon
There are many misconceptions about the ground rod, and the role it plays in reducing electromagnetic
interference. In theory, the ground rod is present to eliminate possible potential dierences between
equipment and building structures. However many people believe that the ground rod allows all radio
frequency noise to be absorbed and disappear into the Earth. Experience has shown that a good ground
rod will eliminate radio frequency noise problems.
Misconception about Earth ground rods.
1
1
69
InstallatIon
In reality the ground rod is providing a low impedance path by which noise currents may return to their
source .
2
Earth ground rod reality.
1
2
1
70
InstallatIon
Rail System Safety Ground
The rail system safety ground makes sure that the
entire rail is at ground potential, eliminating any
possible shock hazard, and providing backup for the
machine chassis ground in case of a plasma current
short circuit. All four corners of the rail system should
be connected to the cutting table.
71
InstallatIon
Earth Ground Rod
The best way to make sure that your Earth ground connection is optimized is to enlist the services of a
professional. There are a number of engineering rms which specializes in designing and installing Earth
grounding systems. However, if this option cannot be used, then there are several things which can be done to
ensure that your Earth ground connection is good:
Ground Rod
The ground rod itself can be optimized in two ways: length and diameter. The longer the grounding rod,
the better the connection. The same is true for diameter: the larger the diameter, the better the connection.
However, if the soil resistance is very low, then a ground rod longer than 3m [10 feet] does not make a
signicant dierence. Since soil resistivity is rarely as good as it could be, a standard grounding rod should be
25mm [1 inch] in diameter and 6m [20 feet] long.
Soil Resistivity
Soil resistivity can be changed in two ways: by altering the mineral content, the moisture content, or both.
The ideal solution to poor soil resistivity is to excavate the immediate area and backll with conditioned soil
additives. In extremely dry areas, the moisture content can be improved by installing a drip system which
continually moisturizes the soil surrounding the ground rod. A crude way of aecting soil moisture and content
is to use salt water, or rock salt to condition the surrounding soil.
72
InstallatIon
Utility Power Electrical Ground
The utility power electrical ground must accompany all 3 phase and single phase power feeds. This electrical
ground provides the proper reference for all incoming power. Failure to provide this ground is a violation of
most electrical codes, and a serious safety hazard.
Depending on the 3 phase power arrangement (either a “Delta” or a “Y”), the line to ground voltage may be
equal to, or less than the line to line voltage. A problem exists any time the line to ground voltage exceeds any
individual line to line voltage (dierence in potential). Contact your local utility company if you are not sure
that your 3 phase power has a proper electrical ground. Make sure that your electrical contractor properly
installs the electrical ground wire with all 3 phase and single phase power feeds.
The electrical ground must be connected to the appropriate terminal inside of the plasma power supply. Size
wire according to local electrical codes.
2
1
1
Utility Power Electrical Ground
2
3 Phase Electrical Supply
3
Plasma Power Supply
3
73
InstallatIon
Multiple Ground Rods
There are a number of reasons why multiple ground rods should not be used. While installing multiple rods
may improve a safety ground or lightening ground, it oers no advantage for electromagnetic interference
reduction, and can cause more problems than it is worth.
The problem with multiple ground rods is that each rod uses an “interfacing Electromagnetic Interference
1.1
1
2
Multiple ground points can also create undetectable
“sneak” pathways for radio frequency noise currents,
actually causing more interference! Instead of
considering multiple ground rods, take steps to
make the single ground rod as good a ground
connection as possible.
l
sphere” of earth, having a radius of 1.1 times the length of the rod. Overlapping of these Electromagnetic
Interference spheres causes a loss in grounding eectiveness proportional to the amount of overlap.
l
1
2
Multiple ground rods should be avoided if possible.
However, if all other avenues have been explored
to lessen your systems’ electronic interferences,
multiple ground rods are an option.
Such a system should be installed by a professional
and the distance between the rods should exceed
2.5 l
2.5 times the length of the rods.
74
InstallatIon
Machine Grounding Schematic
8
10
9
1
Main Control Enclosure
2
Component Enclosures
3
Main Star Ground
Rails
4
Cutting Table
5
System Star Ground (on Table)
6
Earth Ground Rod
7
Plasma Power Supply
8
Plasma Power Supply Ground (required by EU
9
Standards)
Electrical System Ground
10
2
1
3
4
5
(+)
6
7
•All electrical enclosures bolted to the
machine chassis
•Machine chassis grounded to star
point on cutting table.
•Rails grounded to cutting table
•Plasma ground connected to star point
on cutting table
•Earth ground rod connected to star
point on cutting table.
•A separate ground rod is required for
the plasma power supply by some regulations and directives. Check with local regulations to determine if this additional ground rod is required.
75
Placement of Power Supply
FAILURE TO FOLLOW INSTRUCTIONS COULD LEAD TO DEATH, IN
JURY OR DAMAGED PROPERTY. FOLLOW THESE INSTRUCTIONS TO
WARNING
•A minimum of 1 meter (3 ft.) clearance on front and
back for cooling air ow.
•Plan for top panel and side panels having to be removed for maintenance, cleaning and inspection.
•Locate the power supply relatively close to a properly
fused electrical power supply.
•Keep area beneath power supply clear for cooling air
ow.
•Environment should be relatively free of dust, fumes
and excessive heat. These factors will aect cooling
eciency.
PREVENT INJURY OR PROPERTY DAMAGE. YOU MUST COMPLY WITH
LOCAL, STATE AND NATIONAL ELECTRICAL AND SAFETY CODES.
InstallatIon
Connection Procedures
ELECTRIC SHOCK CAN KILL! PROVIDE MAXIMUM PROTECTION
WARNING
Input power must be provided from a line (wall) disconnect switch that contains fuses or circuit breakers in accordance to local or state regulations.
WARNING
AGAINST ELECTRICAL SHOCK. BEFORE ANY CONNECTIONS ARE
MADE INSIDE THE MACHINE, OPEN THE LINE WALL DISCONNECT
SWITCH TO TURN POWER OFF.
CONDUCTIVE DUST AND DIRT INSIDE POWER SUPPLY MAY CAUSE
ARC FLASHOVER. EQUIPMENT DAMAGE MAY OCCUR. ELECTRICAL
SHORTING MAY OCCUR IF DUST IS ALLOWED TO BUILDUP INSIDE
POWER SUPPLY.
SEE MAINTENANCE SECTION.
76
InstallatIon
Placement of RAS Box
THE COVER IS GROUNDED TO THE REMOTE ARC STARTER BOX IN
WARNING
Connections on the RAS Box
1. Remove or unlock the cover screws and lift the box cover o to expose internal components.
2. Power cables pass through the strain relief ttings. To make the power supply connection to the RAS box,
you must rst open the unit: remove or unlock the cover screws and lift the box cover o to expose internal
components.
TERNALLY WITH A SHORT GROUND WIRE. REMOVE COVER CARE
FULLY TO AVOID DAMAGE TO THE WIRE OR LOOSENING OF THE
GROUND WIRE.
Pilot Arc Cable enters through strain relief tting
to Voltage Divider (VDR)
Coolant IN
to Power Supply Enable
to Power Supply
Coolant OUT
Strain Relief Fittings
Power Source Cables enter
through strain relief ttings
77
InstallatIon
Buss Bar / Block
Locking Screw
3. Strip back the insulation of the 4/0 (95 mm2) cable, approximately 38 mm.
4. Insert the 4/0 (95 mm2) cable in the buss bar/block hole until copper extends to the edge of the buss bar /
block.
5. Tighten the locking screw(s) down on the cable.
Nomex Insulation
Connection for Pilot Arc Cable
NOTICE
AmperageRequired # of 1/0 Cables
Up to 200 amps1
AmperageRequired # of 4/0 Cables
Up to 400 amps1
Up to 800 amps2
Up to 1000 amps3
Careful attention while stripping the insulation of the 4/0 (95 mm2)
cable will make installation in the buss clamp easier. Do not spread
or are the copper conductors.
Note:
Chassis must be connected to the machine ground.
78
InstallatIon
Standard VDR Cable
VDR Cable (with free end)
6. If a non-ESAB lifter is to be used with a system the supplied VDR cable will only have a connector on one
end. The other end of the cable will have no connector. The end with the supplied connector is to be connected to the RAS box to its corresponding socket which is labeled “Voltage Divider.”
The free end of the VDR cable will be connected to the lifter. Although this is a three conductor cable, only
two of the wires are used, BRN (VDR - ) and BLU (WORK). The black wire is a spare and is to be terminated and
capped inside of the lifter. The corresponding pin at the RAS box comes terminated from the factory. The RAS
box is not to be modied.
It is imperative that the BLUE wire be connected to ground. The BROWN wire is the VDR(-) output.
Customer
Supplied
Lifter
Ground
in Lifter is
VDR (Voltage Divider Cable)
required for
reference
79
InstallatIon
Torch Connections
Torch hook-up requires the connection of power cables / coolant hoses, pilot arc cable and chassis ground. On
the PT-36 torch, the coolant hoses from the RAS box to the torch also carry electrode power.
The pilot arc cable is connected inside the arc starter box. The pilot arc cable also has a green/yellow wire that is
connected to a grounding stud.
The PT-36 has two water cooled power cables which must be connected to the negative output from the power
supply. The right handed 7/16-20 tting is on the cable supplying coolant to the torch. The left handed 7/16-20
tting is on the cable returning coolant from the torch. Both of these cables have a green/yellow wire to be connected to the ground stud shown above.
The pilot arc cable is connected to the arc starter box (see Installation section). The pilot arc cable also has a
green/yellow wire that is connected to a grounding stud.
81
Mounting Torch to Machine
InstallatIon
DANGER
CLAMPING ON TORCH BODY MAY CAUSE DANGEROUS CURRENT
TO FLOW THROUGH MACHINE CHASSIS.
Mount torch on insulated sleeve here
•Do not mount on stainless steel torch body.
•Torch body is electrically insulated, however high fre-
quency start current may arc through to nd a ground.
•Clamping near torch body may result in arcing between
body and machine.
•When this arcing occurs, torch body may require nonwarranty replacement.
DO NOT mount
on steel torch
body here
•Damage to machine components may result.
•Clamp only on insulated torch sleeve (directly above la-
bel) not less than 1.25" (31.75mm) from the torch end of
the sleeve.
82
InstallatIon
Placement of CGC
The CGC regulates the plasma gas and shield gas. For optimum
performance, it should always be placed close to torch. According to the material being cut, the customer needs to select and
connect the correct inlet gases. Inline lters are embedded into
the inlet ttings. Please make sure all inlet gases meet the pressure and ow requirements.
Connect 24V AC/DC power from PDB, then connect CAN cable
to ICH.
Gas
Argon125 psi (8.6 bar), 200 SCFH (5.7 SCMH)
Plasma
O2/H35/F5125 psi (8.6 bar) for O2, 75 psi (5.2 bar) for H35/F5, 255 SCFH (7.2 SCMH)
N2/Air125 psi (8.6 bar), 255 SCFH (7.2 SCMH)
Shield
Air CurtainAir
N2/Air125 psi (8.6 bar), 353 SCFH (10.0 SCMH)
Gas &
Pressure
Air (85psi / 5.9bar)
Process
Nitrogen
(125psi / 8.6bar)
Oxygen
(125psi / 8.6bar)
Pressure
80 psi (5.5 bar), 1200 SCFH (34.0 SCMH)
Maximum Gas Flow Rates - CFH (CMH)
With PT-36 Torch
269
(7.6)
385
(10.9)
66
(1.9)
Gas Purity
Clean, Dry, Oil Free
Filtered to 25 microns
99.99%, Filtered to 25 microns
99.5%, Filtered to 25 microns
83
InstallatIon
Component Connections
Part numbers and lengths for the cables shown below are provided on the following page.
Hydrogen explosion hazard! Read the following before attempting to cut with a water table.
A hazard exists whenever a water table is used for plasma arc cutting. Severe explosions have resulted from the accumulation of hydrogen beneath the plate being cut. Thousands of dollars in property damage has been caused by these
explosions. Personal injury or death could result from such an explosion. The best available information indicates that
three possible sources of hydrogen exists in water tables:
1. Molten Metal Reaction
Most of the hydrogen is liberated by a fast reaction of molten metal from the kerf in the water to form metallic ox-
ides. This reaction explains why reactive metals with greater anity for oxygen, such as aluminum and magnesium,
release greater volumes of hydrogen during the cut than does iron or steel. Most of this hydrogen will come to the
surface immediately, but some will cling to small metallic particles. These particles will settle to the bottom of the
water table and the hydrogen will gradually bubble to the surface.
2. Slow Chemical Reaction
Hydrogen may also result from the slower chemical reactions of cold metal particles with the water, dissimilar metals,
or chemicals in the water. The hydrogen gradually bubbles to the surface.
3. Plasma Gas
Hydrogen may come from the plasma gas. At currents over 750 amps, H-35 is used as cut gas. This gas is 35% hydro-
gen by volume and a total of about 125 cfh of hydrogen will be released.
Regardless of the source, the hydrogen gas can collect in pockets formed by the plate being cut and slats on the
table, or pockets from warped plate. There can also be accumulation of hydrogen under the slag tray or even in the
air reservoir, if these are part of the table design. The hydrogen, in the presence of oxygen or air, can then be ignited
by the plasma arc or a spark from any source.
4. Follow these practices to reduce hydrogen generation and accumulation:
A. Clean the slag (especially ne particles) from the bottom of the table frequently. Rell the table with clean water.
B. Do not leave plates on the table overnight or a weekend.
C. If a water table has been unused for several hours, vibrate it in some way before the rst plate is laid in position.
This will allow accumulated hydrogen in the refuse to break loose and dissipate before it is conned by a plate
on the table. This might be accomplished by laying the rst plate onto the table with a slight jolt, then raising
the plate to permit hydrogen to escape before it is nally set down for cutting.
D. If cutting above water, install fans to circulate air between the plate and the water surface.
E. If cutting underwater, agitate the water under the plate to prevent accumulation of hydrogen. This can be done
by aerating the water using compressed air.
F. If possible, change the level of the water between cuts to dissipate accumulated hydrogen.
G. Maintain pH level of the water near 7 (neutral). This reduces the rate of chemical reaction between water and
metals.
86
InstallatIon
WARNING
Possible explosion hazard from plasma cutting aluminum-lithium alloys!
Aluminum-Lithium (Al-Li) alloys are used in the aerospace industry because of 10% weight savings over conventional
aluminum alloys. It has been reported that molten Al-Li alloys can cause explosions when they come into contact with
water. Therefore, plasma cutting of these alloys should not be attempted in the presence of water. These alloys should
only be dry cut on a dry table. Alcoa has determined that "dry" cutting on a dry table is safe and gives good cutting results.
DO NOT dry cut over water. DO NOT water injection cut.
The following are some of the Al-Li alloys currently available:
Alithlite (Alcoa) X8192 (Alcoa)
Alithally (Alcoa) Navalite (U. S. Navy)
2090 Alloy (Alcoa) Lockalite (Lockheed)
X8090A (Alcoa) Kalite (Kaiser)
X8092 (Alcoa) 8091 (Alcan)
For additional details and information on the safe use from the hazards associated with these alloys, contact your aluminum supplier.
Do Not Cut Underwater With H-35! Dangerous buildup of hydrogen gas is possible in the water table. Hydrogen gas is extremely explosive. Reduce the water level to 4 inches minimum below the workpiece. Vibrate
plate, stir air and water frequently to prevent hydrogen gas buildup.
• Select an appropriate condition from the Cut Data manual (SDP File) and install recommended torch
front-end parts (nozzle, electrode, etc.) See Cut Data manual to identify parts and settings.
• Position torch over material at desired start location.
• See Power Source Manual for proper settings.
• See Description and Installation sections for gas control and startup procedures.
Mirror Cutting
When mirror cutting, a reverse swirl gas bae and reverse diuser are required. These reverse parts will “spin” the gas in the
opposite direction, reversing the “good” side of the cut.
Reverse 4 x .032 BaeP/N 0558002534
Reverse 8 x .047 BaeP/N 0558002530
Reverse DiuserP/N 0004470115
Cut Quality
Causes aecting cut quality are interdependent. Changing one variable aects all others. Determining a solution may be dicult. The following guide oers possible solutions to dierent undesirable cutting results. To
begin select the most prominent condition:
• Cut Angle, negative or positive
• Cut Flatness
• Surface Finish
• Dross
• Dimensional Accuracy
Usually the recommended cutting parameters will give optimal cut quality, occasionally conditions may vary
enough that slight adjustments will be required. If so:
• Make small incremental adjustments when making corrections.
• Adjust Arc Voltage in 5 volt increments, up or down as required.
• Adjust cutting speed 5% or less as required until conditions improve.
88
Before attempting ANY corrections, check cutting variables with the
CAUTION
factory recommended settings/consumable part numbers listed in
Cut Data manual.
Cut Angle
Negative Cut Angle
Top dimension is greater than the bottom.
• Misaligned torch
• Bent or warped material
• Worn or damaged consumables
• Stando low (arc voltage)
•Cutting speed slow (machine travel rate)
InstallatIon
Part
Positive Cut Angle
Top dimension is less than the bottom dimension.
•Misaligned torch
•Bent or warped material
•Worn or damaged consumables
•High stando High (arc voltage)
•Cutting speed fast
•Current high or low. (See Cut Data manual for
recommended current level for specic nozzles).
Drop
Drop
Part
Part
Part
89
InstallatIon
Cut Flatness
Top And Bottom Rounded. Condition usually occurs when
material is .25" thick (6.4mm) or less.
•High current for given material thickness.
(See Cut Data manual for proper settings).
Top Edge Undercut
•Stando low (Arc Voltage).
Drop
Drop
Part
Part
90
InstallatIon
Surface Finish
Process Induced Roughness
Cut face is consistently rough. May or may not be conned
to one axis.
• Incorrect Shield Gas mixture (See Cut Data
manual).
• Worn or damaged consumables.
Machine Induced Roughness
Can be dicult to distinguish from Process Induced
Roughness. Often conned to only one axis. Roughness is
inconsistent.
• Dirty rails, wheels and/or drive rack/pinion.
• Carriage wheel adjustment.
Top View
Process
Induced
Roughness
or
Cut Face
Machine
Induced
Roughness
Dross
Dross is a by-product of the cutting process. It is the undesirable
material that remains attached to the part. In most cases, dross
can be reduced or eliminated with proper torch and cutting parameter setup. Refer to Cut Data manual.
High Speed Dross
Material weld or rollover on bottom surface along kerf. Dicult
to remove. May require grinding or chipping. “S” shaped lag lines.
• Stando high (arc voltage).
• Cutting speed fast.
Slow Speed Dross
Forms as globules on bottom along kerf. Removes easily.
• Cutting speed slow.
Cut Face
Lag Lines
Rollover
Side View
Cut Face
Lag Lines
Globules
Side View
91
InstallatIon
Recommended cutting speed and arc voltage will give optimal cutting performance in most cases. Small incremental adjustments may
be needed due to material quality, material temperature and specic
CAUTION
Top Dross
Appears as splatter on top of material. Usually removes easily.
• Cutting speed fast
• Stando high (arc voltage)
Intermittent Dross
Appears on top or bottom along kerf. Non-continuous. Can appear as
any kind of dross.
• Possible worn consumables
alloy. The operator should remember that all cutting variables are interdependent. Changing one setting aects all others and cut quality
could deteriorate. Always start at the recommended settings.
Side View
Splatter
Other Factors Aecting Dross;
• Material temperature
• Heavy mill scale or rust
• High carbon alloys
Cut Face
Before attempting ANY corrections, check cutting variables with the
CAUTION
factory recommended settings/consumable part numbers listed in
the Cut Data manual.
Dimensional Accuracy
Generally using the slowest possible speed (within approved levels) will optimize part accuracy. Select consumables to allow
a lower arc voltage and slower cutting speed.
NOTICE
Recommended cutting speed and arc voltage will give optimal cutting performance.
Small incremental adjustments may be needed due to material quality, material temperature and specic alloy. The
operator should remember that all cutting variables are interdependent. Changing one setting aects all others and
cut quality could deteriorate. Always start at the recommended settings. Before attempting ANY corrections, check
cutting variables with the factory recommended settings/consumable part numbers listed in the Cut Data manual.
92
Torch Flow Passages
InstallatIon
Water OUT & Power
Pilot Arc
Water IN (L.H.)
Plasma Gas IN
Shield Gas IN
93
InstallatIon
94
Maintenance/Troubleshooting
Maintenance/troubleshooting
96
Maintenance/troubleshooting
Torch Front End Disassembly
Wear on torch parts is a normal occurrence to plasma cutting. Starting a plasma arc is an erosive process to both
the electrode and nozzle. Regularly scheduled inspection and replacement of PT-36 parts must take place to
maintain cut quality and consistent part size.
DANGER
1. Remove the Shield Cup Retainer.
HOT TORCH WILL BURN SKIN!
ALLOW TORCH TO COOL BEFORE SERVICING.
NOTE:
If the shield cup retainer is dicult to remove, try to screw the nozzle retaining cup tighter to
relieve pressure on the shield cup retainer.
2. Inspect mating metal surface of shield cup and shield cup retainer for nicks or dirt that might prevent these
two parts from forming a metal to metal seal. Look for pitting or signs of arcing inside the shield cup. Look
for melting of the shield tip. Replace if damaged.
3. Inspect diuser for debris and clean as necessary. Wear on the top notches does occur, eecting gas volume.
Replace this part every other shield replacement. Heat from cutting many small parts in a concentrated area
or when cutting material greater than 0.75" (19.1mm) may require more frequent replacement.
Incorrect assembly of the diuser in the shield will prevent the torch
CAUTION
from working properly. Diuser notches must be mounted away
from the shield as illustrated.
Shield Cup
Shield Cup Retainer
Diuser
Torch Body
Electrode
Nozzle
Nozzle Retaining Cup
97
Maintenance/troubleshooting
4. Unscrew nozzle retainer and pull nozzle straight out of torch body. Inspect insulator portion of the nozzle
retainer for cracks or chipping. Replace if damaged.
Inspect nozzle for:
• melting or excessive current transfer.
• gouges from internal arcing.
• nicks or deep scratches on the O-ring seating surfaces .
• O-ring cuts, nicks, or wear.
• Remove hafnium particles (from the nozzle) with steel wool.
Replace if any damage is found.
NOTE:
Discoloration of internal surfaces and small black starting marks are normal and do not eect
cutting performance.
If the holder was tightened suciently, the electrode may unscrew without being attached to the electrode
holder. When installing the electrode, use only sucient force to adequately secure the electrode.
5. Remove electrode using electrode removal tool.
6. Disassemble electrode from electrode holder. Insert ats on the holder into a 5/16" wrench. Using the electrode tool, rotate electrode counter-clockwise to remove. Replace electrode if center insert is pitted more
than 0.09" (3/32").
Torch Body
Electrode Removal Tool
Electrode
Replace electrode if center insert is
pitted more than 0.09" (3/32")
98
Maintenance/troubleshooting
7. Remove electrode holder from torch body. Hex on the end of the electrode holder removal tool will engage
in a hex in the holder.
Removal
Tool
Electrode
Gas Bae
Electrode Holder Assembly
NOTE:
The electrode holder is manufactured in two pieces. Do not disassemble. If the holder is dam-
aged, replace the electrode holder assembly.
8. Disassemble electrode holder and gas bae. Carefully remove O-ring from electrode holder and slide bae
from holder. Inspect nozzle seating surface (front edge) for chips. Look for cracks or plugged holes. Do not
attempt to clear holes. Replace bae if damaged.
NOTE:
Check all O-rings for nicks or other damage that might prevent O-ring from forming a gas/water
tight seal.
Gas Bae
Electrode Holder Assembly
O-ring
NOTE:
Discoloration of these surfaces with use is
normal. It is caused by galvanic corrosion.
99
Maintenance/troubleshooting
Torch Front End Assembly
Over-tightened parts will be dicult to disassemble and may dam-
CAUTION
•Reverse order of disassembly.
•Apply a very thin coat of silicone grease to O-rings before assembling mating parts. This facilitates
easy future assembly and disassembly for service.
•Installing the electrode requires only moderate tightening. If the electrode holder is made tighter
than the electrode, it is possible to change worn electrodes without removing the electrode holder.
•Turn on the coolant circulator and purge the gases through the torch.
age torch. Do not over tighten parts during reassembly. Threaded
parts are designed to work properly when hand-tightened, approximately 40 to 60 inch/pounds.
NOTE:
When assembling, place the nozzle inside the nozzle retaining cup and thread the nozzle retaining cup/nozzle combination on the torch body. This will help align the nozzle with the assembly.
The shield cup and shield cup retainer should be installed only after installing the nozzle retain-
ing cup and nozzle. Otherwise the parts will not seat properly and leaks may occur.
Diuser
Torch
Nozzle
Electrode
Nozzle Retaining
Cup
Shield
Cup
Shield Cup Retainer
body
100
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