Miller MA000000 Le manuel du propriétaire

Catégorie
Système de soudage
Taper
Le manuel du propriétaire

Ce manuel convient également à

OM-246379B 201809
Processes
Description
MIG (GMAW) Welding
Semi-Automatic Air-Cooled MIG
(GMAW) Welding Gun
Flux Cored (FCAW) Welding
M-100 Gun
File: MIG (GMAW)
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 Owners 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 201706
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.....................................................................
SECTION 2 MESURES DE SÉCURITÉ VISANT LES PISTOLETS DE SOUDAGE GMAW À LIRE AVANT
UTILISATION 3..............................................................................
2-1. Signification des symboles 3............................................................
2-2. Dangers relatifs au soudage à l’arc 3.....................................................
2-3. Proposition californienne 65 Avertissements 4..............................................
2-4. Principales normes de sécurité 4.........................................................
2-5. Informations relatives aux CEM 4........................................................
SECTION 2 INSTALLATION 5................................................................
2-1. Specifications 5.......................................................................
2-2. Duty Cycle And Overheating 5...........................................................
2-3. Installing Gun 6.......................................................................
SECTION 3 OPERATION 6..................................................................
3-1. Operating The Gun 6...................................................................
SECTION 4 MAINTENANCE & TROUBLESHOOTING 7.........................................
4-1. Removing Nozzle, Contact Tip, And Adapter, Changing Liner, And Cleaning Gun Casing 7........
4-2. Replacing Switch And/Or Head Tube 8....................................................
4-3. Routine Maintenance 9.................................................................
4-4. Troubleshooting 9.....................................................................
SECTION 5 PARTS LIST 10...................................................................
WARRANTY
OM-246379 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
manufacturers 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
manufacturers 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-246379 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 Owners
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 passersby 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-246379 Page 3
SECTION 2 MESURES DE SÉCURITÉ VISANT LES
PISTOLETS DE SOUDAGE GMAW À LIRE AVANT
UTILISATION
SR7(MIG)_201801_fre
Pour écarter les risques de blessure pour vousmême 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 bec
contact ou des pièces de pistolet.
D S’assurer que tous les couvercles et poignées sont fermement
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-246379 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 sécuri
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-246 379 Page 5
SECTION 3 INSTALLATION
3-1. Specifications
Ref. 243 838-A
Air-Cooled Welding Gun For GMAW And FCAW Welding
Note: Using gasless flux cored wire reduces gun duty cycle.
M-100 Feeds .023 To .045 in. (0.6 To 1.1 mm) Hard Or Flux Cored Wires
Duty Cycle Rating:
100%: 100 A With CO
2
Shielding Gas
60%: 100 A With Mixed Gases
Weight With 10 ft (3 m) Power Cable: 3.5 lb (1.6 kg)
NOTICE Exceeding duty cycle
can damage unit and void warranty.
Overheating
0
15
A or V
OR
Reduce Duty Cycle
Minutes
sduty1 5/95
3-2. Duty Cycle And Overheating
Duty Cycle is percentage of 10
minutes that gun can weld at
rated load without overheating.
0
10
Minutes
Definition
Continuous Welding
.023 To .045 in. (0.6 To 1.1 mm)
Hard Or Flux Cored Wires
100% Duty Cycle At 100 Amperes
Using CO
2
.023 To .045 in. (0.6 To 1.1 mm) Hard Or Flux Cored Wires
60% Duty Cycle At 100 Amperes
Using Mixed Gases
6 Minutes Welding 4 Minutes Resting
. See Section 3-1. Specifications for amperage rating and duty cycle.
OM-246 379 Page 6
3-3. Installing Gun
243 861-A
1 Gun Securing Knob
2 Gun End
Loosen knob. Insert gun end until it
bottoms against drive assembly.
Tighten knob.
3 Gun Trigger Plug
Insert into receptacle, and tighten
threaded collar.
4 Friction Terminals
Some applications will require
cutting off trigger plug and installing
0.250 female friction terminals onto
end of leads.
See power source manual for
threading procedure.
1
3
2
4
SECTION 4 OPERATION
4-1. Operating The Gun
Ref. 243 838-A
1 Trigger Switch
When pressed, energized wire
feeds and shielding gas flows.
1
OM-246 379 Page 7
SECTION 5 MAINTENANCE & TROUBLESHOOTING
5-1. Removing Nozzle, Contact Tip, And Adapter, Changing Liner, And Cleaning Gun
Casing
Ref. 243 839-A
! Turn off welding power
source/wire feeder.
1 Nozzle
2 Contact Tip
3 Tip Adapter
. Wire size stamped on tip check
and match wire size.
Tools Needed:
8 mm, 10 mm
Lay gun cable out
straight before
installing new liner.
Remove nozzle,
contact tip, and
adapter.
Unscrew and
remove liner.
Blow out
gun casing.
Cut off wire and
disconnect gun
from feeder.
5/8 in.
(16 mm)
Liner
Stickout
Install
Liner
. Thread wire according to
welding power source/wire
feeder manual.
Reassemble gun in
reverse order from
taking it apart.
10 mm
Head
Tube
8 mm
1
3
2
OM-246 379 Page 8
5-2. Replacing Switch And/Or Head Tube
Ref. 243 840-A
Tools Needed:
15 mm
Remove screws (5)
and nuts (4).
Remove handle halves.
Hand-tighten head tube into cable connector.
Place head tube in vice and tighten until
nuts are tight.
Remove from vice. Reposition handle halves, and
install switch housing.
! Turn Off welding power source
/wire feeder and disconnect gun.
Remove switch housing. Install new
switch and connect leads (polarity is
not important). Reassemble in
reverse order. If replacing head tube,
continue to end of figure.
12
3
8
6
7
Remove screw on
opposite side.
Secure head
tube in vice.
Loosen jam nut.
Remove from vice
and turn head tube
out by hand.
4
5
phillips
Reinstall screws
and nuts.
9
Reinstall screw on
opposite side.
OM-246 379 Page 9
5-3. Routine Maintenance
! Turn Off welding power source and disconnect gun before maintaining.
Each Spool Of Wire
Blow Out
Gun
Casing
Clean
Nozzle
And Check
Contact Tip
3 Months
Control
Cord
Gas
Hose
Replace
Cracked
Parts
5-4. Troubleshooting
Trouble Remedy
Wire does not feed; wire is not ener-
gized; wire feeds unevenly.
Check contact tip. Check for kinks in gun cable and liner.
Check gun trigger plug connection at welding power source/wire feeder.
Check, and if necessary, replace gun trigger switch (see Section 5-2).
Check contact tip. Check for kinks in gun cable. Blow out liner and gun casing (see Section 5-1).
Weld porosity.
Remove weld spatter buildup in nozzle.
Check O-rings on gun connector and replace if damaged.
Make sure inner head tube is tight in cable connector.
Check gun connector to be sure it is fully inserted into drive assembly.
Check shielding gas flow/supply.
Wire feeding stops or does not feed
properly during welding.
Straighten gun cable and/or replace damaged parts (see Section 5-1).
Adjust drive roll pressure (see wire feeder manual).
Change to proper drive roll groove (see wire feeder manual).
Readjust hub tension (see wire feeder manual).
Clean or replace liner if dirty or plugged (see Section 5-1).
Replace drive roll or pressure bearing if worn or slipping (see wire feeder manual).
OM-246 379 Page 10
SECTION 6 PARTS LIST
246 375-A
1
2
3
4
5
6
7
8
7
11
9
12
13
10
14
Figure 6-1. M-100 Gun
Description
Part
No.
Dia.
Mkgs.
Item
No.
Figure 6-1. M-100 Gun
Quantity
1 246 372 NOZZLE, slip type .500 orf flush 1... .......... .. ......................................
1 +226 190 NOZZLE, flux cored slip type 1... ......... .. .........................................
2 +087 299 TIP, contact scr .023 wire x 1.125 1... ......... .. .....................................
2 +000 067 TIP, contact scr .030 wire x 1.125 1... ......... .. .....................................
2 +000 068 TIP, contact scr .035 wire x 1.125 1... ......... .. .....................................
2 +000 069 TIP, contact scr .045 wire x 1.125 1... ......... .. .....................................
3 170 470 RING, retaining 1... .......... .. .....................................................
4 169 716 ADAPTER, contact tip 1... .......... .. ...............................................
5 246 373 TUBE, head 1... .......... .. ........................................................
6 243 865 NUT, jam 2... .......... .. ..........................................................
7 246 082 HANDLE 1... .......... .. ...........................................................
8 246 376 SWITCH, trigger 1... .......... .. ....................................................
9 079 878 HOUSING PLUG & PINS 1... .......... .. ............................................
10 242 833 CONNECTOR, feeder 1... .......... .. ...............................................
11 079 974 O-RING, .500 ID x .103CS rbr 2... .......... .. ........................................
12 +194 010 LINER, monocoil .023/.025 wire x 15ft (consisting of) 1... ......... .. ....................
12 +194 011 LINER, monocoil .030/.035 wire x 15ft (consisting of) 1... ......... .. ....................
12 +194 012 LINER, monocoil .035/.045 wire x 15ft (consisting of) 1... ......... .. ....................
13 079 975 O-RING, .187 ID x .103CS rbr 1... .......... .... ......................................
14 246 380 HOUSING, power pin M100 1... .......... .. .........................................
+OPTIONAL
To maintain the factory original performance of your equipment, use only Manufacturer’s Suggested
Replacement Parts. Model is required when ordering parts from your local distributor.
Effective January 1, 2018
(Equipment with a serial number preface of MJ or newer)
This limited warranty supersedes all previous Miller warranties and is exclusive with no other
guarantees or warranties expressed or implied.
LIMITED WARRANTY Subject to the terms and conditions below,
Miller Electric Mfg. LLC, Appleton, Wisconsin, warrants to its original
retail purchaser that new Miller equipment sold after the effective date of
this limited warranty is free of defects in material and workmanship at
the time it is shipped by Miller. THIS WARRANTY IS EXPRESSLY IN
LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING THE WARRANTIES OF MERCHANTABILITY AND
FITNESS.
Within the warranty periods listed below, Miller will repair or replace any
warranted parts or components that fail due to such defects in material
or workmanship. Miller must be notified in writing within thirty (30) days
of such defect or failure, at which time Miller will provide instructions on
the warranty claim procedures to be followed. If notification is submitted
as an online warranty claim, the claim must include a detailed
description of the fault and the troubleshooting steps taken to identify
failed components and the cause of their failure.
Miller shall honor warranty claims on warranted equipment listed below
in the event of such a failure within the warranty time periods. All
warranty time periods start on the delivery date of the equipment to the
original end-user purchaser, and not to exceed twelve months after the
equipment is shipped to a North American distributor or eighteen
months after the equipment is shipped to an International distributor.
1. 5 Years Parts — 3 Years Labor
* Original Main Power Rectifiers Only to Include SCRs,
Diodes, and Discrete Rectifier Modules
2. 3 Years — Parts and Labor
* Auto-Darkening Helmet Lenses (Except Classic
Series) (No Labor)
* Engine Driven Welder/Generators
(NOTE: Engines are Warranted Separately by the
Engine Manufacturer.)
* Inverter Power Sources
* Plasma Arc Cutting Power Sources
* Process Controllers
* Semi-Automatic and Automatic Wire Feeders
* Transformer/Rectifier Power Sources
3. 2 Years — Parts and Labor
* Auto-Darkening Helmet Lenses Classic Series Only
(No Labor)
* Auto-Darkening Weld Masks (No Labor)
* Fume Extractors Capture 5, Filtair 400 and Industrial
Collector Series
4. 1 Year — Parts and Labor Unless Specified
* AugmentedArc and LiveArc Welding Systems
* Automatic Motion Devices
* Bernard BTB Air-Cooled MIG Guns (No Labor)
* CoolBelt and CoolBand Blower Unit (No Labor)
* Desiccant Air Dryer System
* External Monitoring Equipment and Sensors
* Field Options
(NOTE: Field options are covered for the remaining
warranty period of the product they are installed in,
or for a minimum of one year — whichever is
greater.)
* RFCS Foot Controls (Except RFCS-RJ45)
* Fume Extractors Filtair 130, MWX and SWX Series
* HF Units
* ICE/XT Plasma Cutting Torches (No Labor)
* Induction Heating Power Sources, Coolers
(NOTE: Digital Recorders are Warranted
Separately by the Manufacturer.)
* Load Banks
* Motor-Driven Guns (except Spoolmate Spoolguns)
* PAPR Blower Unit (No Labor)
* Positioners and Controllers
* Racks
* Running Gear/Trailers
* Spot Welders
* Subarc Wire Drive Assemblies
* TIG Torches (No Labor)
* Tregaskiss Guns (No Labor)
* Water Cooling Systems
* Wireless Remote Foot/Hand Controls and Receivers
* Work Stations/Weld Tables (No Labor)
5. 6 Months — Parts
* Batteries
6. 90 Days — Parts
* Accessory (Kits)
* Canvas Covers
* Induction Heating Coils and Blankets, Cables, and
Non-Electronic Controls
* M-Guns
* MIG Guns, Subarc (SAW) Torches, and External
Cladding Heads
* Remote Controls and RFCS-RJ45
* Replacement Parts (No labor)
* Spoolmate Spoolguns
Miller’s True Blue® Limited Warranty shall not apply to:
1. Consumable components; such as contact tips,
cutting nozzles, contactors, brushes, relays, work
station table tops and welding curtains, or parts that
fail due to normal wear. (Exception: brushes and
relays are covered on all engine-driven products.)
2. Items furnished by Miller, but manufactured by others,
such as engines or trade accessories. These items are
covered by the manufacturer’s warranty, if any.
3. Equipment that has been modified by any party other than
Miller, or equipment that has been improperly installed,
improperly operated or misused based upon industry
standards, or equipment which has not had reasonable
and necessary maintenance, or equipment which has
been used for operation outside of the specifications for
the equipment.
MILLER PRODUCTS ARE INTENDED FOR COMMERCIAL AND
INDUSTRIAL USERS TRAINED AND EXPERIENCED IN THE USE
AND MAINTENANCE OF WELDING EQUIPMENT.
The exclusive remedies for warranty claims are, at Millers option,
either: (1) repair; or (2) replacement; or, if approved in writing by
Miller, (3) the pre-approved cost of repair or replacement at an
authorized Miller service station; or (4) payment of or credit for the
purchase price (less reasonable depreciation based upon use).
Products may not be returned without Miller’s written approval.
Return shipment shall be at customer’s risk and expense.
The above remedies are F.O.B. Appleton, WI, or Miller’s authorized
service facility. Transportation and freight are the customers
responsibility. TO THE EXTENT PERMITTED BY LAW, THE
REMEDIES HEREIN ARE THE SOLE AND EXCLUSIVE
REMEDIES REGARDLESS OF THE LEGAL THEORY. IN NO
EVENT SHALL MILLER BE LIABLE FOR DIRECT, INDIRECT,
SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
(INCLUDING LOSS OF PROFIT) REGARDLESS OF THE LEGAL
THEORY. ANY WARRANTY NOT PROVIDED HEREIN AND ANY
IMPLIED WARRANTY, GUARANTY, OR REPRESENTATION,
INCLUDING ANY IMPLIED WARRANTY OF
MERCHANTABILITY OR FITNESS FOR PARTICULAR
PURPOSE, ARE EXCLUDED AND DISCLAIMED BY MILLER.
Some US states do not allow limiting the duration of an implied
warranty or the exclusion of certain damages, so the above
limitations may not apply to you. This warranty provides specific
legal rights, and other rights may be available depending on your
state. In Canada, some provinces provide additional warranties or
remedies, and to the extent the law prohibits their waiver, the
limitations set out above may not apply. This Limited Warranty
provides specific legal rights, and other rights may be available, but
may vary by province.
Warranty Questions?
Call
1-800-4-A-MILLER
for your local
Miller distributor.
miller_warr 2018-01
Your distributor also gives
you ...
Service
You always get the fast,
reliable response you
need. Most replacement
parts can be in your
hands in 24 hours.
Support
Need fast answers to the
tough welding questions?
Contact your distributor.
The expertise of the
distributor and Miller is
there to help you, every
step of the way.
ORIGINAL INSTRUCTIONS PRINTED IN USA © 2018 Miller Electric Mfg. LLC 201801
Miller Electric Mfg. LLC
An Illinois Tool Works Company
1635 West Spencer Street
Appleton, WI 54914 USA
International HeadquartersUSA
USA Phone: 920-735-4505 Auto-Attended
USA & Canada FAX: 920-735-4134
International FAX: 920-735-4125
For International Locations Visit
www.MillerWelds.com
Model Name Serial/Style Number
Purchase Date (Date which equipment was delivered to original customer.)
Distributor
Address
City
State Zip
Please complete and retain with your personal records.
Always provide Model Name and Serial/Style Number.
Contact a DISTRIBUTOR or SERVICE AGENCY near you.
Welding Supplies and Consumables
Options and Accessories
Personal Safety Equipment
Service and Repair
Replacement Parts
Training (Schools, Videos, Books)
Technical Manuals (Servicing Information
and Parts)
Circuit Diagrams
Welding Process Handbooks
Contact the Delivering Carrier to:
For Service
Owner’s Record
File a claim for loss or damage during
shipment.
For assistance in filing or settling claims, contact
your distributor and/or equipment manufacturer’s
Transportation Department.
Contact your Distributor for:
To locate a Distributor or Service Agency visit
www.millerwelds.com or call 1-800-4-A-Miller
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