Miller MJ370375T Owner's manual

300 Ampere (Air) Push-Pull Welding Gun

XR - AlumaPro

(Air And Water-Cooled Guns)

Processes

Description

MIG (GMAW) Welding

OM-227398R

2018−07

Semi-Automatic, Air/Water-

Cooled, MIG (GMAW) Welding

Gun

™

File: MIG (GMAW)

400 Ampere (Water) Push-Pull Welding Gun

250 Ampere (Air) Push-Pull Welding Gun

CE And Non-CE Models

For product information,

Owner’s Manual translations,

and more, visit

www.MillerWelds.com

Miller Electric manufactures a full line

of welders and welding related equipment.

For information on other quality Miller

products, contact your local Miller distributor to receive the latest full

line catalog or individual specification sheets. To locate your nearest

distributor or service agency call 1-800-4-A-Miller, or visit us at

www.MillerWelds.com on the web.

Thank you and congratulations on choosing Miller. Now you can get

the job done and get it done right. We know you don’t have time to do

it any other way.

That’s why when Niels Miller first started building arc welders in 1929,

he made sure his products offered long-lasting value and superior

quality. Like you, his customers couldn’t afford anything less. Miller

products had to be more than the best they could be. They had to be the

best you could buy.

Today, the people that build and sell Miller products continue the

tradition. They’re just as committed to providing equipment and service

that meets the high standards of quality and value established in 1929.

This Owner’s Manual is designed to help you get the most out of your

Miller products. Please take time to read the Safety precautions. They

will help you protect yourself against potential hazards on the worksite.

We’ve made installation and operation quick

and easy. With Miller you can count on years

of reliable service with proper maintenance.

And if for some reason the unit needs repair,

there’s a Troubleshooting section that will

help you figure out what the problem is. The

parts list will then help you to decide the

exact part you may need to fix the problem.

Warranty and service information for your

particular model are also provided.

Miller is the first welding

equipment manufacturer in

the U.S.A. to be registered to

the ISO 9001 Quality System

Standard.

Working as hard as you do

− every power source from

Miller is backed by the most

hassle-free warranty in the

business.

From Miller to You

Mil_Thank 2017−06

TABLE OF CONTENTS

SECTION 1 −SAFETY PRECAUTIONS FOR GMAW WELDING GUNS − READ BEFORE USING 1........

1-1. Symbol Usage 1........................................................................

1-2. Arc Welding Hazards 1..................................................................

1-3. Proposition 65 Warnings 2...............................................................

1-4. Principal Safety Standards 2.............................................................

1-5. EMF Information 2......................................................................

3SECTION 2 − MESURES DE SÉCURITÉ VISANT LES PISTOLETS DE SOUDAGE GMAW − À LIRE AVANT

UTILISATION 1................................................................................

2-1. Signification des symboles 1.............................................................

2-2. Dangers relatifs au soudage à l’arc 1......................................................

2-3. Proposition californienne 65 Avertissements 2...............................................

2-4. Principales normes de sécurité 2..........................................................

2-5. Informations relatives aux CEM 2.........................................................

SECTION 3 − DEFINITIONS 5...................................................................

3-1. Additional Safety Symbols And Definitions 5................................................

3-2. Miscellaneous Symbols And Definitions 5...................................................

SECTION 4 − SPECIFICATIONS 6................................................................

4-1. Specifications 6........................................................................

4-2. Environmental Specifications 6...........................................................

4-3. Duty Cycle And Overheating 7............................................................

SECTION 5 − INSTALLATION 8..................................................................

5-1. Connections With A Constant Current (CC), Constant Voltage (CV) Or Constant Current/Constant

Voltage (CC/CV) Welding Power Source Having A 14-Socket Receptacle 8......................

5-2. Air-Cooled Gun Connections 9............................................................

5-3. Water-Cooled Gun Connections 10.........................................................

5-4. Millermatic 350P Water Cooled Gun Connections 11..........................................

5-5. Threading Welding Wire For AlumaPro Gun And Millermatic 350P 12.............................

5-6. Threading Welding Wire Through XR-Control Feeder 13.......................................

5-7. Adjusting Tension At Feeder 14............................................................

5-8. 10-Pin Plug Information 15................................................................

5-9. Opening Top Cover Of XR-AlumaPro Gun 15.................................................

5-10. Threading Welding Wire Through Gun 16....................................................

SECTION 6 − OPERATION 17....................................................................

6-1. Gun Controls 17.........................................................................

6-2. Gun Pressure Roll Tension Setting 17.......................................................

6-3. Shielding Gas 18........................................................................

6-4. Coolant Supply For Water-Cooled Models Only 18............................................

6-5. Gun Drive Assembly Maintenance For An XR-AlumaPro Gun 19................................

6-6. Replacing Head Tube Liner In XR-AlumaPro Guns 20.........................................

6-7. Changing Gun Contact Tip 20.............................................................

6-8. Replacing The Gun Liner On XR-AlumaPro Guns 21..........................................

SECTION 7 − MAINTENANCE & TROUBLESHOOTING 22...........................................

7-1. Routine Maintenance For Aluminum Push/Pull Guns 22........................................

7-2. Cleaning The Gun Liner On XR-AlumaPro Guns 23...........................................

7-3. Troubleshooting Table 24.................................................................

SECTION 8 − ELECTRICAL DIAGRAMS 25........................................................

SECTION 9 − PARTS LIST 26.....................................................................

SECTION 10 − PARTS LIST INCLUDING CONSUMABLES 31........................................

WARRANTY

DECLARATION OF CONFORMITY

for European Community (CE marked) products.

MILLER Electric Mfg. Co., 1635 Spencer Street, Appleton, WI 54914 U.S.A. declares that the

product(s) identified in this declaration conform to the essential requirements and provisions of

the stated Council Directive(s) and Standard(s).

Product/Apparatus Identification:

Product Stock Number

XR-A ALUMA-PRO 300000004, 300001004, 300264004, 300264006

XR-W ALUMA-PRO 300003, 300004, 300265

300003002, 300004002, 300265002

Council Directives:

• 2006/95/EC Low Voltage

• 2011/65/EU Restriction of the use of certain hazardous substances in electrical and electronic equipment

Standards:

• IEC 60974-7:2013 Arc welding equipment – Part 7: Torches

Signatory:

_____________________________________ ___________________________________________

David A. Werba

Date of Declaration

MANAGER, PRODUCT DESIGN COMPLIANCE

March 25, 2015

271588A

OM-227398 Page 1

SECTION 1 −SAFETY PRECAUTIONS FOR GMAW

WELDING GUNS − READ BEFORE USING

SR7 (MIG) 2018-01

Protect yourself and others from injury — read, follow, and save these important safety precautions and operating instructions.

1-1. Symbol Usage

DANGER! − Indicates a hazardous situation which, if

not avoided, will result in death or serious injury. The

possible hazards are shown in the adjoining symbols

or explained in the text.

Indicates a hazardous situation which, if not avoided,

could result in death or serious injury. The possible

hazards are shown in the adjoining symbols or ex-

plained in the text.

NOTICE − Indicates statements not related to personal injury.

. Indicates special instructions.

This group of symbols means Warning! Watch Out! ELECTRIC

SHOCK, MOVING PARTS, and HOT PARTS hazards. Consult sym-

bols and related instructions below for necessary actions to avoid the

hazards.

1-2. Arc Welding Hazards

The symbols shown below are used throughout this manual

to call attention to and identify possible hazards. When you

see the symbol, watch out, and follow the related instructions

to avoid the hazard. The safety information given below is

only a summary of the more complete safety information

found in the welding power source Owner’s Manual. Read

and follow all Safety Standards.

Only qualified persons should install, operate, maintain, and

repair this equipment. A qualified person is defined as one

who, by possession of a recognized degree, certificate, or

professional standing, or who by extensive knowledge, train-

ing and experience, has successfully demonstrated ability to

solve or resolve problems relating to the subject matter, the

work, or the project and has received safety training to recog-

nize and avoid the hazards involved.

During operation, keep everybody, especially children, away.

ELECTRIC SHOCK can kill.

D Always wear dry insulating gloves.

D Insulate yourself from work and ground.

D Do not touch live electrode or electrical parts.

D Replace worn, damaged, or cracked guns or cables.

D Turn off welding power source before changing contact tip or gun

parts.

D Keep all covers and handle securely in place.

FUMES AND GASES can be hazardous.

D Keep your head out of the fumes.

D Ventilate area, or use breathing device. The

recommended way to determine adequate

ventilation is to sample for the composition and quantity of fumes

and gases to which personnel are exposed.

D Read and understand the Safety Data Sheets (SDSs) and the

manufacturer’s instructions for adhesives, coatings, cleaners,

consumables, coolants, degreasers, fluxes, and metals.

MOVING PARTS can injure.

D Keep away from moving parts.

D Keep away from pinch points such as drive

rolls.

WELDING can cause fire or explosion.

D Do not weld near flammable material.

D Do not weld on containers that have held com-

bustibles, or on closed containers such as

tanks, drums, or pipes unless they are properly prepared ac-

cording to AWS F4.1 and AWS A6.0 (see Safety Standards).

D Watch for fire; keep extinguisher nearby.

D Read and understand the Safety Data Sheets (SDSs) and the

manufacturer’s instructions for adhesives, coatings, cleaners,

consumables, coolants, degreasers, fluxes, and metals.

BUILDUP OF GAS can injure or kill.

D Shut off compressed gas supply when not in

use.

D Always ventilate confined spaces or use ap-

proved air-supplied respirator.

Arc rays from the welding process produce intense

visible and invisible (ultraviolet and infrared) rays

that can burn eyes and skin. Sparks fly off from the

weld.

ARC RAYS can burn eyes and skin.

D Wear an approved welding helmet fitted with a proper shade of filter

lenses to protect your face and eyes from arc rays and sparks

when welding or watching (see ANSI Z49.1 and Z87.1 listed in

Safety Standards).

D Wear approved safety glasses with side shields under your

helmet.

D Use protective screens or barriers to protect others from flash,

glare and sparks; warn others not to watch the arc.

D Wear body protection made from durable, flame-resistant material

(leather, heavy cotton, wool). Body protection includes oil-free

clothing such as leather gloves, heavy shirt, cuffless trousers, high

shoes, and a cap.

HOT PARTS can burn.

D Allow gun to cool before touching.

D Do not touch hot metal.

D Protect hot metal from contact by others.

OM-227398 Page 2

NOISE can damage hearing.

Noise from some processes or equipment can

damage hearing.

D Check for noise level limits exceeding those

specified by OSHA.

D Use approved ear plugs or ear muffs if noise level is high.

D Warn others nearby about noise hazard.

WELDING WIRE can injure.

D Keep hands and body away from gun tip when

trigger is pressed.

READ INSTRUCTIONS.

D Read and follow all labels and the Owner’s

Manual carefully before installing, operating, or

servicing unit. Read the safety information at

the beginning of the manual and in each

section.

D Use only genuine replacement parts from the manufacturer.

D Perform installation, maintenance, and service according to the

Owner’s Manuals, industry standards, and national, state, and

local codes.

1-3. Proposition 65 Warnings

WARNING: This product can expose you to chemicals in-

cluding lead, which are known to the state of California to

cause cancer and birth defects or other reproductive

harm.

For more information, go to www.P65Warnings.ca.gov.

1-4. Principal Safety Standards

Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1,

is available as a free download from the American Welding Society at

http://www.aws.org or purchased from Global Engineering Documents

(phone: 1-877-413-5184, website: www.global.ihs.com).

Safe Practice For Occupational And Educational Eye And Face Protec-

tion, ANSI Standard Z87.1, from American National Standards Institute,

25 West 43rd Street, New York, NY 10036 (phone: 212-642-4900, web-

site: www.ansi.org).

Safe Practices for the Preparation of Containers and Piping for Welding

and Cutting, American Welding Society Standard AWS F4.1, from Glob-

al Engineering Documents (phone: 1-877-413-5184, website: www.glo-

bal.ihs.com).

Safe Practices for Welding and Cutting Containers that have Held Com-

bustibles, American Welding Society Standard AWS A6.0, from Global

Engineering Documents (phone: 1-877-413-5184,

website: www.global.ihs.com).

National Electrical Code, NFPA Standard 70, from National Fire Protec-

tion Association, Quincy, MA 02169 (phone: 1-800-344-3555, website:

www.nfpa.org and www. sparky.org).

Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,

from Compressed Gas Association, 14501 George Carter Way, Suite

103, Chantilly, VA 20151 (phone: 703-788-2700, website:

www.cganet.com).

Safety in Welding, Cutting, and Allied Processes, CSA Standard

W117.2, from Canadian Standards Association, Standards Sales, 5060

Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5NS

(phone: 800-463-6727, website: www.csagroup.org).

Safe Practice For Occupational And Educational Eye And Face Protec-

tion, ANSI Standard Z87.1, from American National Standards Institute,

25 West 43rd Street, New York, NY 10036 (phone: 212-642-4900, web-

site: www.ansi.org).

Standard for Fire Prevention During Welding, Cutting, and Other Hot

Work, NFPA Standard 51B, from National Fire Protection Association,

Quincy, MA 02169 (phone: 1-800-344-3555, website: www.nfpa.org).

OSHA, Occupational Safety and Health Standards for General Indus-

try, Title 29, Code of Federal Regulations (CFR), Part 1910.177 Subpart

N, Part 1910 Subpart Q, and Part 1926, Subpart J, from U.S. Govern-

ment Printing Office, Superintendent of Documents, P.O. Box 371954,

Pittsburgh, PA 15250-7954 (phone: 1-866-512-1800) (there are 10 OS-

HA Regional Offices—phone for Region 5, Chicago, is 312-353-2220,

website: www.osha.gov).

1-5. EMF Information

Electric current flowing through any conductor causes localized electric

and magnetic fields (EMF). The current from arc welding (and allied pro-

cesses including spot welding, gouging, plasma arc cutting, and induc-

tion heating operations) creates an EMF field around the welding circuit.

EMF fields can interfere with some medical implants, e.g. pacemakers.

Protective measures for persons wearing medical implants have to be

taken. For example, restrict access for passers−by or conduct individu-

al risk assessment for welders. All welders should use the following pro-

cedures in order to minimize exposure to EMF fields from the welding

circuit:

1. Keep cables close together by twisting or taping them, or using a

cable cover.

2. Do not place your body between welding cables. Arrange cables

to one side and away from the operator.

3. Do not coil or drape cables around your body.

4. Keep head and trunk as far away from the equipment in the

welding circuit as possible.

5. Connect work clamp to workpiece as close to the weld as

possible.

6. Do not work next to, sit or lean on the welding power source.

7. Do not weld whilst carrying the welding power source or wire

feeder.

About Implanted Medical Devices:

Implanted Medical Device wearers should consult their doctor and the

device manufacturer before performing or going near arc welding, spot

welding, gouging, plasma arc cutting, or induction heating operations.

If cleared by your doctor, then following the above procedures is recom-

mended.

OM-227398 Page 3

SECTION 2 − MESURES DE SÉCURITÉ VISANT LES

PISTOLETS DE SOUDAGE GMAW − À LIRE AVANT

UTILISATION

SR7(MIG)_2018−01_fre

Pour écarter les risques de blessure pour vous−même et pour autrui — lire, appliquer et ranger en lieu sûr ces consignes relatives

aux précautions de sécurité et au mode opératoire.

2-1. Signification des symboles

DANGER! − Indique une situation dangereuse qui si on

l’évite pas peut donner la mort ou des blessures graves.

Les dangers possibles sont montrés par les symboles

joints ou sont expliqués dans le texte.

Indique une situation dangereuse qui si on l’évite pas

peut donner la mort ou des blessures graves. Les dan-

gers possibles sont montrés par les symboles joints ou

sont expliqués dans le texte.

AVIS − Indique des déclarations pas en relation avec des blessures

personnelles.

. Indique des instructions spécifiques.

Ce groupe de symboles veut dire Avertissement! Attention! DANGER

DE CHOC ELECTRIQUE, PIECES EN MOUVEMENT, et PIECES

CHAUDES. Consulter les symboles et les instructions ci-dessous y

afférant pour les actions nécessaires afin d’éviter le danger.

2-2. Dangers relatifs au soudage à l’arc

Les symboles présentés ci-après sont utilisés tout au long du

présent manuel pour attirer votre attention et identifier les ris-

ques de danger. Lorsque vous voyez un symbole, soyez vigilant

et suivez les directives mentionnées afin d’éviter tout danger.

Les consignes de sécurité présentées ci-après ne font que résu-

mer l’information contenue dans les normes de sécurité énumé-

rées dans le manuel d’utilisation du poste de soudage. Veuillez

lire et respecter toutes ces normes de sécurité.

L’installation, l’utilisation, l’entretien et les réparations ne

doivent être confiés qu’à des personnes qualifiées. Une

personne qualifiée est définie comme celle qui, par la

possession d’un diplôme reconnu, d’un certificat ou d’un

statut professionnel, ou qui, par une connaissance, une for-

mation et une expérience approfondies, a démontré avec

succès sa capacité à résoudre les problèmes liés à la tâche,

le travail ou le projet et a reçu une formation en sécurité afin

de reconnaître et d’éviter les risques inhérents.

Au cours de l’utilisation, tenir toute personne à l’écart et plus

particulièrement les enfants.

UN CHOC ÉLECTRIQUE peut tuer.

D Porter toujours des gants secs et isolants.

D S’isoler de la pièce et de la terre.

D Ne jamais toucher une électrode ou des pièces

électriques sous tension.

D Remplacer les pistolets ou câbles de soudage qui sont endom

magés, usés ou craquelés.

D Mettre la soudeuse hors tension avant de remplacer un be

contact ou des pièces de pistolet.

D S’assurer que tous les couvercles et poignées sont fermemen

assujettis.

LES VAPEURS ET LES FUMÉES

peuvent être nocives.

D Éloigner sa tête des endroits renfermant des

vapeurs.

D Aérer la zone de travail ou porter un appareil respiratoire. Pour dé-

terminer la bonne ventilation, il est recommandé de procéder à un

prélèvement pour la composition et la quantité de fumées et de gaz

auxquels est exposé le personnel.

D Lire et comprendre les fiches de données de sécurité et les instruc-

tions du fabricant concernant les adhésifs, les revêtements, les net-

toyants, les consommables, les produits de refroidissement, les

dégraisseurs, les flux et les métaux.

LE SOUDAGE peut causer un in-

cendie ou une explosion.

D Ne pas souder à proximité de matériaux inflam-

mables.

D Ne pas effectuer le soudage sur des conteneurs fermés tels que

des réservoirs, tambours, ou conduites, à moins qu’ils n’aient été

préparés correctement conformément à AWS F4.1 et AWS A6.0

(voir les Normes de Sécurité).

D Prendre garde aux incendies et toujours avoir un extincteur à

proximité.

D Lire et comprendre les fiches de données de sécurité et les

instructions du fabricant concernant les adhésifs, les revêtements,

les nettoyants, les consommables, les produits de refroidissement,

les dégraisseurs, les flux et les métaux.

L’ACCUMULATION DE VAPEURS

peut causer des lésions ou la mort.

D Quand on n’utilise pas le gaz comprimé de pro-

tection, fermer le robinet de la bouteille.

D Assurer toujours la ventilation des zones fermées ou utiliser un

appareil respiratoire avec alimentation en air.

Les PIÈCES MOBILES peuvent

causer des blessures.

D Ne pas s’approcher des organes mobiles.

D Ne pas s’approcher des points de coincement

tels que des rouleaux de commande.

LE RAYONNEMENT DE L’ARC peut

brûler les yeux et la peau.

Le rayonnement de l’arc du procédé de soudage

génère des rayons visibles et invisibles intenses

(ultraviolets et infrarouges) susceptibles de provoquer des brûlures

dans les yeux et sur la peau. Des étincelles sont projetées pendant le

soudage.

D Porter un casque de soudage approuvé muni de verres filtrants

approprié pour protéger visage et yeux pendant le soudage

(voir ANSI Z49.1 et Z87.1 énuméré dans les normes de sécurité).

D Porter des lunettes de sécurité avec écrans latéraux même sous

votre casque.

OM-227398 Page 4

D Avoir recours à des écrans protecteurs ou à des rideaux pour

protéger les autres contre les rayonnements les éblouissements

et les étincelles ; prévenir toute personne sur les lieux de ne pas

regarder l’arc.

D Porter un équipement de protection pour le corps fait d’un matériau

résistant et ignifuge (cuir, coton robuste, laine). La protection du

corps comporte des vêtements sans huile comme par ex. des

gants de cuir, une chemise solide, des pantalons sans revers, des

chaussures hautes et une casquette.

LES PIÈCES CHAUDES peuvent

provoquer des brûlures.

D Laisser refroidir le pistolet avant de le toucher.

D Ne pas toucher d’objets métalliques chauds.

D Abriter les objets métalliques contre tout

contact par les personnes à proximité.

Le BRUIT peut endommager l’ouie.

Le bruit des processus et des équipements peut

affecter l’ouïe.

D Vérifier si les niveaux de bruit excèdent les lim-

ites spécifiées par l’OSHA.

D Utiliser des bouche-oreilles ou des serre-tête antibruit approuvés si

le niveau de bruit est élevé.

D Avertir les personnes à proximité au sujet du danger inhérent au

bruit.

LES FILS DE SOUDAGE peuvent

provoquer des blessures.

D Éloigner les mains et le corps de la buse du

pistolet après avoir appuyé sur la gâchette.

LIRE LES INSTRUCTIONS.

D Lire et appliquer les instructions sur les

étiquettes et le Mode d’emploi avant

l’installation, l’utilisation ou l’entretien de

l’appareil. Lire les informations de sécurité au

début du manuel et dans chaque section.

D N’utiliser que les pièces de rechange recommandées par le cons-

tructeur.

D Effectuer l’installation, l’entretien et toute intervention selon les

manuels d’utilisateurs, les normes nationales, provinciales et de

l’industrie, ainsi que les codes municipaux.

2-3. Proposition californienne 65 Avertissements

AVERTISSEMENT : ce produit peut vous exposer à des

produits chimiques tels que le plomb, reconnus par l’État de

Californie comme cancérigènes et sources de malformations

ou d’autres troubles de la reproduction.

Pour plus d’informations, consulter www.P65Warnings.ca.gov.

2-4. Principales normes de sécurité

Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1,

is available as a free download from the American Welding Society at

http://www.aws.org or purchased from Global Engineering Documents

(phone: 1-877-413-5184, website: www.global.ihs.com).

Safe Practice For Occupational And Educational Eye And Face Protec-

tion, ANSI Standard Z87.1, from American National Standards Institute,

25 West 43rd Street, New York, NY 10036 (phone: 212-642-4900, web-

site: www.ansi.org).

Safe Practices for the Preparation of Containers and Piping for Welding

and Cutting, American Welding Society Standard AWS F4.1, from Glob-

al Engineering Documents (phone: 1-877-413-5184, website: www.glo-

bal.ihs.com).

Safe Practices for Welding and Cutting Containers that have Held Com-

bustibles, American Welding Society Standard AWS A6.0, from Global

Engineering Documents (phone: 1-877-413-5184,

website: www.global.ihs.com).

National Electrical Code, NFPA Standard 70, from National Fire Protec-

tion Association, Quincy, MA 02169 (phone: 1-800-344-3555, website:

www.nfpa.org and www. sparky.org).

Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,

from Compressed Gas Association, 14501 George Carter Way, Suite

103, Chantilly, VA 20151 (phone: 703-788-2700, website:

www.cganet.com).

Safety in Welding, Cutting, and Allied Processes, CSA Standard

W117.2, from Canadian Standards Association, Standards Sales, 5060

Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5NS

(phone: 800-463-6727, website: www.csagroup.org).

Safe Practice For Occupational And Educational Eye And Face Protec-

tion, ANSI Standard Z87.1, from American National Standards Institute,

25 West 43rd Street, New York, NY 10036 (phone: 212-642-4900, web-

site: www.ansi.org).

Standard for Fire Prevention During Welding, Cutting, and Other Hot

Work, NFPA Standard 51B, from National Fire Protection Association,

Quincy, MA 02169 (phone: 1-800-344-3555, website: www.nfpa.org).

OSHA, Occupational Safety and Health Standards for General Indust-

ry, Title 29, Code of Federal Regulations (CFR), Part 1910, Subpart Q,

and Part 1926, Subpart J, auprès du U.S. Government Printing Office,

Superintendent of Documents, P.O. Box 371954, Pittsburgh, PA

15250-7954 (téléphone : 1-866-512-1800) (il y a 10 bureaux régiona-

ux––le téléphone de la région 5, Chicago, est 3123532220, site Internet

: www.osha.gov).

2-5. Informations relatives aux CEM

Le courant électrique qui traverse tout conducteur génère des champs

électromagnétiques (CEM) à certains endroits. Le courant de soudage

crée un CEM autour du circuit et du matériel de soudage. Le courant

issu d’un soudage à l’arc (et de procédés connexes, y compris le

soudage par points, le gougeage, le découpage plasma et les

opérations de chauffage par induction) crée un champ

électromagnétique (CEM) autour du circuit de soudage. Les champs

électromagnétiques produits peuvent causer interférence à certains

implants médicaux, p. ex. les stimulateurs cardiaques. Des mesures de

protection pour les porteurs d’implants médicaux doivent être prises:

Limiter par exemple tout accès aux passants ou procéder à une

évaluation des risques individuels pour les soudeurs. Tous les

soudeurs doivent appliquer les procédures suivantes pour minimiser

l’exposition aux CEM provenant du circuit de soudage:

1 Rassembler les câbles en les torsadant ou en les attachant avec

du ruban adhésif ou avec une housse.

2 Ne pas se tenir au milieu des câbles de soudage. Disposer les

câbles d’un côté et à distance de l’opérateur.

3 Ne pas courber et ne pas entourer les câbles autour de votre

corps.

4 Maintenir la tête et le torse aussi loin que possible du matériel du

circuit de soudage.

5 Connecter la pince sur la pièce aussi près que possible de la

soudure.

6 Ne pas travailler à proximité d’une source de soudage, ni

s’asseoir ou se pencher dessus.

7 Ne pas souder tout en portant la source de soudage ou le

dévidoir.

En ce qui concerne les implants médicaux :

Les porteurs d’implants doivent d’abord consulter leur médecin avant

de s’approcher des opérations de soudage à l’arc, de soudage par

points, de gougeage, du coupage plasma ou de chauffage par

induction. Si le médecin approuve, il est recommandé de suivre les pro-

cédures précédentes.

OM-227398 Page 5

SECTION 3 − DEFINITIONS

3-1. Additional Safety Symbols And Definitions

. Some symbols are found only on CE products.

Warning! Watch Out! There are possible hazards as shown by the symbols.

Safe1 2012−05

Do not discard product (where applicable) with general waste.

Reuse or recycle Waste Electrical and Electronic Equipment (WEEE) by disposing at a designated collection

facility.

Contact your local recycling office or your local distributor for further information.

Safe37 2017−04

3-2. Miscellaneous Symbols And Definitions

Volts

Alternating Cur-

rent

Duty Cycle

Wire Feed

Gun

Trigger Hold Off

Run-In

Read Instructions

Water (Coolant)

Input

Amperes

Circuit Breaker

Trigger

Trigger Hold On

Percent

Load Voltage

Line Connection

Continuous

Spot Welding

Hertz

Output

Increase

Spot Weld Time

Primary Voltage

Rated Current

Fuse

Degree Of

Protection

Jog

Press To Set

Purge

Burnback Time

Primary Current

Water (Coolant)

Output

Notes

OM-227398 Page 6

SECTION 4 − SPECIFICATIONS

4-1. Specifications

Model Welding Output Range Electrode

Wire Diameter

Capacity

Wire Feed

Speed Range

Net Weight

(Torch Only)

(CE Models)

XR-A AlumaPro 15 ft (4.7 m)

XR-A AlumaPro 25 ft (7.6 m)

XR-A AlumaPro 35 ft (10.7 m)

250 A at 60% Duty Cycle .030 To 1/16 in.

(0.8 To 1.6 mm)

aluminum wire

70 To 900 ipm

(1.8 To 23 mpm)

2.5 lb (1.1 kg)

(less cables)

(Non CE Models)

XR-A AlumaPro 15 ft (4.7 m)

XR-A AlumaPro 25 ft (7.6 m)

XR-A AlumaPro 35 ft (10.7 m)

300 A at 100% Duty Cycle .030 To 1/16 in.

(0.8 To 1.6 mm)

aluminum wire

70 To 900 ipm

(1.8 To 23 mpm)

2.5 lb (1.1 kg)

(less cables)

(CE And Non CE Models)

XR-W AlumaPro 15 ft (4.7 m)

XR-W AlumaPro 25 ft (7.6 m)

XR-W AlumaPro 35 ft (10.7 m)

400 A at 100% Duty Cycle .030 To 1/16 in.

(0.8 To 1.6 mm)

aluminum wire

70 To 900 ipm

(1.8 To 23 mpm)

2.9 lb (1.3 kg)

(less cables)

. When using 1/16 in (1.6 mm) wire, kit 230708 must be installed.

4-2. Environmental Specifications

A. IP Rating

IP Rating

IP3X

This equipment is designed for indoor use and is not intended to be used or stored outside.

IP3X 2014−06

B. Temperature Specifications

Operating Temperature Range Storage Temperature Range

14 to 104°F (−10 to 40°C) −4 to 131°F (−20 to 55°C)

Temp_2016-07

C. Information On Electromagnetic Fields (EMF)

! This equipment shall not be used by the general public as the EMF limits for the general public might be exceeded during welding.

This equipment is built in accordance with EN 60974−1 and is intended to be used only in an occupational environment (where the general public

access is prohibited or regulated in such a way as to be similar to occupational use) by an expert or an instructed person.

Wire feeders and ancillary equipment (such as torches, liquid cooling systems and arc striking and stabilizing devices) as part of the welding

circuit may not be a major contributor to the EMF. See the Owner’s Manuals for all components of the welding circuit for additional EMF exposure

information.

S The EMF assessment on this equipment was conducted at 0.5 meter.

S At a distance of 1 meter the EMF exposure values were less than 20% of the permissible values.

ce-emf 1 2010-10

Notes

OM-227398 Page 7

4-3. Duty Cycle And Overheating

Duty Cycle is percentage of 10 min-

utes that unit can weld at rated load

without overheating.

NOTICE − Exceeding duty cycle

can damage unit and void warranty.

sduty1 5/95

Air-Cooled Models (CE)

Air-Cooled Models

Continuous Welding

60% Duty Cycle At 250 Peak Amperage Using 100% Argon Gas w/15, 25 Or 35 Foot Guns

100% Duty Cycle At 300 Peak Amperage Using 100% Argon Gas w/15, 25 Or 35 Foot Guns

Water-Cooled Models (CE)

Continuous Welding

100% Duty Cycle At 400 Peak Amperage Using 100% Argon Gas w/15, 25 Or 35 Foot Guns

6 Minutes Welding 4 Minutes Resting

Notes

OM-227398 Page 8

SECTION 5 − INSTALLATION

. Be sure that contact tip, liner, and drive rolls are correct for wire size and type. See Parts List to change parts as needed.

5-1. Connections With A Constant Current (CC), Constant Voltage (CV) Or Constant

Current/Constant Voltage (CC/CV) Welding Power Source Having A

14-Socket Receptacle

Ref. 804653-A / 805349-A

1 CC, CV Or CC/CV Welding Power

Source

2 24 VAC/Contactor Control 14-Pin

Plug

3 Negative (−) Weld Cable

4 Workpiece

5 Welding Gun

6 Wire Feeder

7 24 VAC/Contactor Control Cord

8 Positive (+) Weld Cable

9 Gas Cylinder

. Shielding gas pressure not to exceed

100 psi (689 kPa).

Millermatic 350P

XR-D

OM-227398 Page 9

5-2. Air-Cooled Gun Connections

Ref. 245995-A / 246218-A / 151666-G

1 Gun Control Cable

Insert plug into Gun Control

receptacle, and tighten threaded

collar.

2 Gun Power Pin

3 Gun Bushing

4 Gun Securing Knob

5 Drive Casting

Loosen gun securing knob and

insert gun power pin through gun

bushing until it bottoms against

drive casting. Tighten knob.

Left Side

OM-227398 Page 10

5-3. Water-Cooled Gun Connections

Ref. 245997-A / 805353-A / 246218-A / 151666-G

. Turn on coolant supply before

welding or gun will be dam-

aged.

1 Gun Control Cable

Insert plug into Gun Control

receptacle, and tighten threaded

collar.

2 Gun Power Pin

3 Gun Securing Knob

4 Gun Bushing

5 Drive Casting

Loosen gun securing knob, and

insert gun power pin through gun

bushing until it bottoms against

drive casting. Tighten knob. Close

and latch door.

6 Gun (Coolant) “In” Hose

Connect to Water “Out” fitting on

feeder (left-hand threads).

7 Gun (Coolant) “Out” Hose

Connect to Water “In” fitting on

feeder (left-hand threads)

8 Water Cooler Output

9 Water Cooler Input

10 Feeder (Coolant) Output

11 Feeder (Coolant) Input

Tools Needed:

9/16 in.

Left Side

OM-227398 Page 11

5-4. Millermatic 350P Water Cooled Gun Connections

Ref. 804945-A

NOTICE − Turn on coolant supply before

welding or gun will be damaged.

1 Coolant Supply

2 Millermatic 350P

3 Gun Control Cable

Insert plug into gun control receptacle and

tighten threaded collar.

4 Water In Hose

Connect to coolant supply with supplied

coupler and water hose (left-hand threads).

5 Gun Connector

Loosen gun securing knob, and insert gun

connector through Wire opening until it

bottoms against block. Tighten knob. Close

and latch door.

6 Water Out Hose

Connect to coolant supply with supplied

coupler and water hose (left-hand threads).

7 Coolant “In”

8 Coolant “Out”

Tools Needed:

9/16 in.

OM-227398 Page 12

5-5. Threading Welding Wire For AlumaPro Gun And Millermatic 350P

1 Wire Spool

2 Welding Wire

3 Inlet Wire Guide

4 Drive Roll

5 Intermediate Wire Guide

6 Outlet Wire Guide

7 Pressure Adjustment Knob

8 Gun Conduit Cable

Lay gun cable out straight.

Tools Needed:

6 in.

(150 mm)

. Hold wire tightly to keep it

from unraveling.

Open pressure assembly.

Pull and hold wire; cut off end.

Push wire thru guides into gun;

continue to hold wire.

Close and tighten pressure

assembly, and let go of wire.

. Set pressure indicator

scale to 1/2 lb.

Ref. 803544-A / 218243-A / 218244-A / S-0627-A

Pressure

Indicator

Scale

218243-A

IMPORTANT!

For Aluminum Push-Pull welding.

Thread hub tension nut loosely

IMPORTANT!

For Aluminum

Push-Pull welding.

218244-A

35621 4

See Section 5-10 for threading weld-

ing wire through AlumaPro guns.

3/4 in.

Tighten to

1/2 lb.

OM-227398 Page 13

5-6. Threading Welding Wire Through XR-Control Feeder

Ref. 246218-A / 805354

Tools Needed:

1 Cable Assembly

Lay cable assembly out straight.

2 Jog Switch

Push Jog switch up to feed wire through

cable assembly.

3 Torque Switch

. Select proper push feeder torque set-

ting for wire size being used. Use low

torque for .030 in. (0.8mm) wire. Use

high torque for all other wire sizes.

. XR-AlumaFeed torque setting is auto-

matically set internally for wire sizes.

JOG / PURGE

Notes

OM-227398 Page 14

5-7. Adjusting Tension At Feeder

Ref. 805350-A / 242517-A

Tools Needed:

Pull and hold wire; cut off end.

6 in.

(150 mm)

1 Tension Arm

Open tension arm.

Thread wire thru inlet guide, along drive roll groove, and

into wire conduit. Close tension arm. Adjust tension as

follows:

. Hold wire tightly to keep

it from unraveling.

Wire Size Welding Gun Calibration

3−4

1−2

0.035 in.

0.040 in.

3/64 in.

1/16 in.

Tension Settings

Install proper size drive rolls.

OM-227398 Page 15

5-8. 10-Pin Plug Information

Pin* Pin Information

A Electrode sense lead

B Motor Common

G Trigger

C Motor 0 to +24 volts DC with respect to pin B

D Trigger

E Wire speed Ref. +9 volts DC

H Wire speed com

F Wire speed 0 to +9 volts DC with respect to pin H

J Gun sensing resistor with respect to pin H

I Not used

5-9. Opening Top Cover Of XR-AlumaPro Gun

1 Top Cover

Squeeze sides of cover and lift up

as shown.

To close cover, pivot cover closed

on gun, and push cover down until

cover locks tight.

Ref. 804544-B

OM-227398 Page 16

! Welding wire is electrically live when

gun trigger is used to jog wire.

. Refer to Section 5-6 for instructions on feeding

wire through feeder.

5-10. Threading Welding Wire Through Gun

Ref. 804544-B / 804545-B

Tools Needed:

Lay gun cable out straight. Press Jog switch until about 6

in. (152 mm) of wire is sticking out end of contact tip.

Cut off wire. Close and

latch wire feeder door.

. Turn OFF coolant supply before threading wire

through gun..

For XR-AlumaPro Gun:

. Verify pressure adjustment

on handle matches the wire

type. See Section 6-2.

JOG / PURGE

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Miller MJ370375T, XR-ALUMAPRO Owner's manual

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