Hobart HANDLER 140 AND H100S2-10 GUN User guide

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OM-258267H 2020−07

Processes

Description

Arc Welding Power Source And Wire Feeder

Handler 140

MIG (GMAW) Welding

Flux Cored (FCAW) Welding

www.HobartWelders.com

File: MIG (GMAW)

TABLE OF CONTENTS

SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING 1.................................

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

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

1-3. Additional Hazards For Installation, Operation, And Maintenance 3.......................

1-4. California Proposition 65 Warnings 4.................................................

1-5. Principal Safety Standards 4.......................................................

1-6. EMF Information 4................................................................

SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION 5..........................

2-1. Symboles utilisés 5...............................................................

2-2. Dangers relatifs au soudage à l’arc 5................................................

2-3. Symboles de dangers supplémentaires en relation avec l’installation, le fonctionnement

et la maintenance 7...............................................................

2-4. Proposition californienne 65 Avertissements 8.........................................

2-5. Principales normes de sécurité 8....................................................

2-6. Informations relatives aux CEM 8...................................................

SECTION 3 − DEFINITIONS 9..................................................................

3-1. Miscellaneous Symbols And Definitions 9............................................

SECTION 4 − SPECIFICATIONS 9..............................................................

4-1. Serial Number And Rating Label Location 9...........................................

4-2. Software Licensing Agreement 9....................................................

4-3. Information About Default Weld Parameters And Settings 9..............................

4-4. Unit Specifications 9..............................................................

4-5. Duty Cycle And Overheating 10......................................................

4-6. Volt-Ampere Curves 10.............................................................

SECTION 5 − INSTALLATION 11................................................................

5-1. Selecting A Location 11.............................................................

5-2. Installing Welding Gun 11...........................................................

5-3. Installing Work Clamp 12...........................................................

5-4. Process/Polarity Table 12...........................................................

5-5. Changing Polarity 12...............................................................

5-6. Installing Gas Supply 13............................................................

5-7. Connecting Input Power 14..........................................................

5-9. Installing Wire Spool And Adjusting Hub Tension 15.....................................

5-10. Installing Contact Tip And Nozzle 15..................................................

5-11. Threading Welding Wire 16..........................................................

SECTION 6 − OPERATION 18..................................................................

6-1. Controls 18.......................................................................

6-2. Weld Parameter Chart 19...........................................................

SECTION 7 − MAINTENANCE & TROUBLESHOOTING 20.........................................

7-1. Routine Maintenance 20............................................................

7-2. Overload Protection 20.............................................................

7-3. Drive Motor Protection 20...........................................................

7-4. Changing Drive Roll Or Wire Inlet Guide 21............................................

7-5. Troubleshooting Table 22...........................................................

SECTION 8 − ELECTRICAL DIAGRAM 23........................................................

SECTION 9 − GMAW WELDING (MIG) GUIDELINES 24............................................

SECTION 10 − ACCESSORIES/CONSUMABLES 32...............................................

COMPLETE PARTS LIST − Available at www.HobartWelders.com WARRANTY

Hobart is registered to the ISO 9001 Quality System Standard.

SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING

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

1-1. Symbol Usage

som 2020−02

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 explained in the text.

NOTICE − Indicates statements not related to personal injury.

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 Principal Safety Standards listed in Section 1-5. 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, training and experience, has successfully demonstrated the ability to solve or resolve problems relating to the subject matter, the work, or the project and has received safety training to recognize and avoid the hazards involved.

During operation, keep everybody, especially children, away.

ELECTRIC SHOCK can kill.

Touching live electrical parts can cause fatal shocks or severe burns. The electrode and work circuit is electrically live whenever the output is on. The input power circuit and machine internal circuits are also live when power is on. In semiautomatic or automatic wire welding, the wire, wire reel, drive roll housing, and all metal parts touching the welding wire are electrically live. Incorrectly installed or improperly grounded equipment is a hazard.

D Do not touch live electrical parts.

D Wear dry, hole-free insulating gloves and body protection. D Insulate yourself from work and ground using dry insulating mats

or covers big enough to prevent any physical contact with the work or ground.

D Do not use AC weld output in damp, wet, or confined spaces, or if

there is a danger of falling.

D Use AC output ONLY if required for the welding process. D If AC output is required, use remote output control if present on

unit.

Additional ing electrically hazardous conditions are present: in damp locations or while wearing wet clothing; on metal structures such as floors, gratings, or scaffolds; when in cramped positions such as sitting, kneeling, or lying; or when there is a high risk of unavoidable or accidental contact with the workpiece or ground. For these conditions, use the following equipment in order presented: 1) a semiautomatic (stick) welder, or 3) an AC welder with reduced open-circuit voltage. In most situations, use of a DC, constant voltage wire welder is recommended. And, do not work alone!

D Disconnect input power or stop engine before installing or

servicing this equipment. Lockout/tagout input power according to OSHA 29 CFR 1910.147 (see Safety Standards).

safety precautions are required when any of the follow-

DC constant voltage (wire) welder, 2) a DC manual

. Indicates special instructions.

This group of symbols means Warning! Watch Out! ELECTRIC SHOCK, MOVING PARTS, and HOT PARTS hazards. Consult symbols and related instructions below for necessary actions to avoid these hazards.

D Properly install, ground, and operate this equipment according to

its Owner’s Manual and national, state, and local codes.

D Always verify the supply ground − check and be sure that input

power cord ground wire is properly connected to ground terminal in disconnect box or that cord plug is connected to a properly grounded receptacle outlet.

D When making input connections, attach proper grounding conduc-

tor first − double-check connections.

D Keep cords dry, free of oil and grease, and protected from hot metal

and sparks.

D Frequently inspect input power cord and ground conductor for

damage or bare wiring – replace immediately if damaged – bare wiring can kill.

D Turn off all equipment when not in use. D Do not use worn, damaged, undersized, or repaired cables. D Do not drape cables over your body. D If earth grounding of the workpiece is required, ground it directly

with a separate cable.

D Do not touch electrode if you are in contact with the work, ground,

or another electrode from a different machine.

D Do not touch electrode holders connected to two welding ma-

chines at the same time since double open-circuit voltage will be present.

D Use only well-maintained equipment. Repair or replace damaged

parts at once. Maintain unit according to manual.

D Wear a safety harness if working above floor level. D Keep all panels and covers securely in place. D Clamp work cable with good metal-to-metal contact to workpiece

or worktable as near the weld as practical.

D Insulate work clamp when not connected to workpiece to prevent

contact with any metal object.

D Do not connect more than one electrode or work cable to any

single weld output terminal. Disconnect cable for process not in use.

D Use GFCI protection when operating auxiliary equipment in damp

or wet locations.

SIGNIFICANT DC VOLTAGE exists in inverter welding power sources AFTER removal of input power.

D Turn off unit, disconnect input power, and discharge input capaci-

tors according to instructions in Manual before touching any parts.

HOT PARTS can burn.

D Do not touch hot parts bare handed. D Allow cooling period before working on

equipment.

D To handle hot parts, use proper tools and/or wear heavy, insu-

lated welding gloves and clothing to prevent burns.

OM-258267 Page 1

FUMES AND GASES can be hazardous.

Welding produces fumes and gases. Breathing these fumes and gases can be hazardous to your health.

D Keep your head out of the fumes. Do not breathe the fumes. D Ventilate the work area and/or use local forced ventilation at the arc

to remove welding fumes and gases. 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 If ventilation is poor, wear an approved air-supplied respirator. D Read and understand the Safety Data Sheets (SDSs) and the

manufacturer’s instructions for adhesives, coatings, cleaners, consumables, coolants, degreasers, fluxes, and metals.

D Work in a confined space only if it is well ventilated, or while

wearing an air-supplied respirator. Always have a trained watchperson nearby. Welding fumes and gases can displace air and lower the oxygen level causing injury or death. Be sure the breathing air is safe.

D Do not weld in locations near degreasing, cleaning, or spraying op-

erations. The heat and rays of the arc can react with vapors to form highly toxic and irritating gases.

D Do not weld on coated metals, such as galvanized, lead, or

cadmium plated steel, unless the coating is removed from the weld area, the area is well ventilated, and while wearing an air-supplied respirator. The coatings and any metals containing these elements can give off toxic fumes if welded.

ARC RAYS can burn eyes and skin.

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.

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 mate-

rial (leather, heavy cotton, wool). Body protection includes oil-free clothing such as leather gloves, heavy shirt, cuffless trousers, high shoes, and a cap.

D Do not cut or weld on tire rims or wheels. Tires can explode if heat-

ed. Repaired rims and wheels can fail. See OSHA 29 CFR

1910.177 listed in Safety Standards.

D Do not weld on containers that have held combustibles, or on

closed containers such as tanks, drums, or pipes unless they are properly prepared according to AWS F4.1 and AWS A6.0 (see Safety Standards).

D Do not weld where the atmosphere can contain flammable dust,

gas, or liquid vapors (such as gasoline).

D Connect work cable to the work as close to the welding area as

practical to prevent welding current from traveling long, possibly unknown paths and causing electric shock, sparks, and fire hazards.

D Do not use welder to thaw frozen pipes. D Remove stick electrode from holder or cut off welding wire at

contact tip when not in use.

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.

D Remove any combustibles, such as a butane lighter or matches,

from your person before doing any welding.

D After completion of work, inspect area to ensure it is free of sparks,

glowing embers, and flames.

D Use only correct fuses or circuit breakers. Do not oversize or by-

pass them.

D Follow requirements in OSHA 1910.252 (a) (2) (iv) and NFPA 51B

for hot work and have a fire watcher and 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.

FLYING METAL or DIRT can injure eyes.

D Welding, chipping, wire brushing, and grinding

cause sparks and flying metal. As welds cool, they can throw off slag.

D Wear approved safety glasses with side

shields even under your welding helmet.

BUILDUP OF GAS can injure or kill.

D Shut off compressed gas supply when not in use. D Always ventilate confined spaces or use

approved air-supplied respirator.

WELDING can cause fire or explosion.

Welding on closed containers, such as tanks, drums, or pipes, can cause them to blow up. Sparks can fly off from the welding arc. The flying sparks, hot

burns. Accidental contact of electrode to metal objects can cause sparks, explosion, overheating, or fire. Check and be sure the area is safe before doing any welding.

D Remove all flammables within 35 ft (10.7 m) of the welding arc. If

this is not possible, tightly cover them with approved covers.

D Do not weld where flying sparks can strike flammable material. D Protect yourself and others from flying sparks and hot metal. D Be alert that welding sparks and hot materials from welding can

easily go through small cracks and openings to adjacent areas.

D Watch for fire, and keep a fire extinguisher nearby. D Be aware that welding on a ceiling, floor, bulkhead, or partition can

cause fire on the hidden side.

OM-258267 Page 2

workpiece, and hot equipment can cause fires and

ELECTRIC AND MAGNETIC FIELDS (EMF) can affect Implanted Medical Devices.

D Wearers of Pacemakers and other Implanted

Medical Devices should keep away.

D Implanted Medical Device wearers should consult their doctor

and the device manufacturer before going near arc welding, spot welding, gouging, plasma arc cutting, or induction heating operations.

NOISE can damage hearing.

Noise from some processes or equipment can damage hearing.

D Wear approved ear protection if noise lev-

el is high.

CYLINDERS can explode if damaged.

Compressed gas cylinders contain gas under high pressure. If damaged, a cylinder can explode. Since gas cylinders are normally part of the welding process, be sure to treat them carefully.

D Protect compressed gas cylinders from excessive heat, mechani-

cal shocks, physical damage, slag, open flames, sparks, and arcs.

D Install cylinders in an upright position by securing to a stationary

support or cylinder rack to prevent falling or tipping.

D Keep cylinders away from any welding or other electrical circuits. D Never drape a welding torch over a gas cylinder. D Never allow a welding electrode to touch any cylinder.

D Never weld on a pressurized cylinder − explosion will result. D Use only correct compressed gas cylinders, regulators, hoses,

and fittings designed for the specific application; maintain them and associated parts in good condition.

D Turn face away from valve outlet when opening cylinder valve. Do

not stand in front of or behind the regulator when opening the valve.

D Keep protective cap in place over valve except when cylinder is in

use or connected for use.

D Use the proper equipment, correct procedures, and sufficient

number of persons to lift, move, and transport cylinders.

D Read and follow instructions on compressed gas cylinders,

associated equipment, and Compressed Gas Association (CGA) publication P-1 listed in Safety Standards.

1-3. Additional Hazards For Installation, Operation, And Maintenance

FIRE OR EXPLOSION hazard.

D Do not install or place unit on, over, or near

combustible surfaces.

D Do not install unit near flammables.

D Do not overload building wiring − be sure power supply system is

properly sized, rated, and protected to handle this unit.

FALLING EQUIPMENT can injure.

D Use lifting eye to lift unit only, NOT running

gear, gas cylinders, or any other accessories.

D Use correct procedures and equipment of ade-

quate capacity to lift and support unit.

D If using lift forks to move unit, be sure forks are long enough to

extend beyond opposite side of unit.

D Keep equipment (cables and cords) away from moving vehicles

when working from an aerial location.

D Follow the guidelines in the Applications Manual for the Revised

NIOSH Lifting Equation (Publication No. 94−110) when manually lifting heavy parts or equipment.

OVERUSE can cause OVERHEATING

D Allow cooling period; follow rated duty cycle. D Reduce current or reduce duty cycle before

starting to weld again.

D Do not block or filter airflow to unit.

FLYING SPARKS can injure.

MOVING PARTS can injure.

D Keep away from moving parts. D Keep away from pinch points such as drive

rolls.

WELDING WIRE can injure.

D Do not press gun trigger until instructed to do

so.

D Do not point gun toward any part of the body,

other people, or any metal when threading welding wire.

BATTERY EXPLOSION can injure.

D Do not use welder to charge batteries or jump

start vehicles unless it has a battery charging feature designed for this purpose.

MOVING PARTS can injure.

D Keep away from moving parts such as fans. D Keep all doors, panels, covers, and guards

closed and securely in place.

D Have only qualified persons remove doors, panels, covers, or

guards for maintenance and troubleshooting as necessary.

D Reinstall doors, panels, covers, or guards when maintenance is

finished and before reconnecting input power.

D Wear a face shield to protect eyes and face. D Shape tungsten electrode only on grinder with

proper guards in a safe location wearing proper face, hand, and body protection.

D Sparks can cause fires — keep flammables away.

STATIC (ESD) can damage PC boards.

D Put on grounded wrist strap BEFORE handling

boards or parts.

D Use proper static-proof bags and boxes to

store, move, or ship PC boards.

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.

OM-258267 Page 3

H.F. RADIATION can cause interference.

ARC WELDING can cause interference.

D High-frequency (H.F.) can interfere with radio

navigation, communications equipment.

D Have only qualified persons familiar with electronic equipment

perform this installation.

D The user is responsible for having a qualified electrician prompt-

ly correct any interference problem resulting from the installation.

D If notified by the FCC about interference, stop using the

equipment at once.

D Have the installation regularly checked and maintained. D Keep high-frequency source doors and panels tightly shut, keep

spark gaps at correct setting, and use grounding and shielding to minimize the possibility of interference.

safety services, computers, and

1-4. California Proposition 65 Warnings

WARNING: This product can expose you to chemicals including 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.P65W

arnings.ca.gov

1-5. Principal Safety Standards

Safety in Welding, Cutting, and Allied Processes, American Welding Society standard ANSI Standard Z49.1. Website: www.aws.org.

Safe Practice For Occupational And Educational Eye And Face Protection, ANSI Standard Z87.1 from American National Standards Institute.

Website: 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. Website: www

Safe Practices for Welding and Cutting Containers that have Held Combustibles, American Welding Society Standard AWS A6.0 from Global

Engineering Documents. Website: www.global.ihs.com. National Electrical Code, NFPA Standard 70 from National Fire Protection

Association. Website: www.nfpa.org and www. sparky.org. Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1

from Compressed Gas Association. Website:www.cganet.com.

.global.ihs.com.

Electromagnetic sensitive electronic equipment such as computers and computer-driven equipment such as robots.

D Be sure all equipment in the welding area is electromagnetically

compatible.

D To reduce possible interference, keep weld cables as short as

possible, close together, and down low, such as on the floor.

D Locate welding operation 100 meters from any sensitive elec-

tronic equipment.

D Be sure this welding machine is installed and grounded

according to this manual.

D If interference still occurs, the user must take extra measures

such as moving the welding machine, using shielded cables, using line filters, or shielding the work area.

Safety in Welding, Cutting, and Allied Processes, CSA Standard W117.2 from Canadian Standards Association. Website: www.csagroup.org.

Standard for Fire Prevention During Welding, Cutting, and Other Hot Work, NFPA Standard 51B from National Fire Protection Association.

Website: www.nfpa.org. OSHA Occupational Safety and Health Standards for General Industry,

Title 29, Code of Federal Regulations (CFR), Part 1910.177 Subpart N, Part 1910 Subpart Q, and Part 1926, Subpart J. Website: www.osha.gov.

OSHA Important Note Regarding the ACGIH TLV, Policy Statement on

the Uses of TLVs and BEIs. Website: www.osha.gov. Applications Manual for the Revised NIOSH Lifting Equation from the

National Institute for Occupational Safety and Health (NIOSH). Website: www.cdc.gov/NIOSH.

energy can interfere with

1-6. EMF Information

Electric current flowing through any conductor causes localized electric and magnetic fields (EMF). The current from arc welding (and allied processes including spot welding, gouging, plasma arc cutting, and induction 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 con- duct individual risk assessment for welders. All welders should use the following procedures 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.

OM-258267 Page 4

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 recommended.

SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION

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. Symboles utilisés

som_2020−02_fre

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 dangers possibles sont montrés par les symboles joints ou sont expliqués dans le texte.

AVIS − Indique des déclarations pas en relation avec des blessures personnelles.

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

Les symboles représentés ci-dessous sont utilisés dans ce manuel pour attirer l’attention et identifier les dangers possibles. En présence de l’un de ces symboles, prendre garde et suivre les instructions afférentes pour éviter tout risque. Les consignes de sécurité présentées ci−après ne font que résumer les in- formations contenues dans les principales normes de sécurité énumérées à la section 2-5. Lire et observer toutes les normes de sécurité.

’installation, doivent être confiés qu’à des personnes qualifiées. Une personne qualifiée est définie comme celle qui, par la possession statut professionnel, ou qui, par une connaissance, une formation 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.

Pendant le fonctionnement, maintenir à distance toutes les personnes, notamment les enfants de l’appareil.

D Ne pas toucher aux pièces électriques sous tension. D Porter des gants isolants et des vêtements de protection secs et

sans trous.

D S’isoler de la pièce à couper et du sol en utilisant des housses ou

des tapis assez grands afin d’éviter tout contact physique avec la pièce à couper ou le sol.

D Ne pas utiliser de sortie de soudage CA dans des zones humides

ou confinées ou s’il y a un risque de chute.

D Se servir d’une source électrique à courant électrique UNIQUE-

MENT si le procédé de soudage le demande.

D Si l’utilisation d’une source électrique à courant électrique s’avère

nécessaire, se servir de la fonction de télécommande si l’appareil en est équipé.

D D’autres consignes de sécurité sont nécessaires dans les condi-

tions suivantes : risques électriques dans un environnement humide ou si l’on porte des vêtements mouillés ; sur des structures métalliques coincée comme assise, à genoux ou couchée ; ou s’il y a un risque élevé de contact inévitable ou accidentel avec la pièce à souder ou le sol. Dans ces conditions, utiliser les équipements suivants, dans l’ordre indiqué : 1) un poste à souder DC à tension constante (à fil), 2) un poste à souder DC manuel (électrode) ou 3) un poste à souder AC à tension à vide réduite. Dans la plupart des situations,

l’utilisation, l’entretien et les réparations ne

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

UNE DÉCHARGE ÉLECTRIQUE peut entraîner la mort.

Le contact d’organes électriques sous tension peut provoquer des accidents mortels ou des brûlures graves. Le circuit de l’électrode et de la pièce est sous tension lorsque le courant est délivré à la sortie. Le circuit d’alimentation et les circuits internes de la machine sont également sous tension lorsque l’alimentation est sur Marche. Dans le mode de soudage avec du fil, le fil, le dérouleur, le bloc de commande du rouleau et toutes les parties métalliques en contact avec le fil sont sous tension électrique. Un équipement installé ou mis à la terre de manière incorrecte ou impropre constitue un danger.

telles que sols, grilles ou échafaudages ; en position

. Indique des instructions spécifiques.

Ce groupe de symboles veut dire Avertissement! Attention! DANGER DE CHOC ELECTRIQUE, PIECES EN MOUVEMENT, et PIECES CHAUDES. Reportez−vous aux symboles et aux directives ci−dessous afin de connaître les mesures à prendre pour éviter tout danger.

l’utilisation d’un poste à souder DC à fil à tension constante est recommandée.

D Couper l’alimentation ou arrêter le moteur avant de procéder à l’in-

stallation, à la réparation ou à l’entretien de l’appareil. Déverrouiller l’alimentation mes de sécurité).

D Installez, mettez à la terre et utilisez correctement cet équipement

conformément nationales, gouvernementales et locales.

D Toujours vérifier la terre du cordon d’alimentation. Vérifier et

s’assurer que le fil de terre du cordon d’alimentation est bien raccordé à la borne de terre du sectionneur ou que la fiche du cordon est raccordée à une prise correctement mise à la terre.

D En effectuant les raccordements d’entrée, fixer d’abord le conduc-

teur de mise à la terre approprié et contre-vérifier les connexions.

D Les câbles doivent être exempts d’humidité, d’huile et de graisse;

protégez−les contre les étincelles et les pièces métalliques chaudes.

D Vérifier fréquemment le cordon d’alimentation et le conducteur de

mise à la terre afin de s’assurer qu’il n’est pas altéré ou dénudé −, le remplacer immédiatement s’il l’est −. Un fil dénudé peut entraîner la mort.

D L’équipement doit être hors tension lorsqu’il n’est pas utilisé. D Ne pas utiliser des câbles usés, endommagés, de grosseur insuffi-

sante ou mal épissés.

D Ne pas enrouler les câbles autour du corps. D Si la pièce soudée doit être mise à la terre, le faire directement

avec un câble distinct.

D Ne pas toucher l’électrode quand on est en contact avec la pièce,

la terre ou une électrode provenant d’une autre machine.

D Ne pas toucher des porte électrodes connectés à deux machines

en même temps à cause de la présence d’une tension à vide doublée.

D N’utiliser qu’un matériel en bon état. Réparer ou remplacer sur-le-

champ les pièces endommagées. Entretenir l’appareil conformément à ce manuel.

D Porter un harnais de sécurité si l’on doit travailler au-dessus du sol. D S’assurer que tous les panneaux et couvercles sont correctement

en place.

D Fixer le câble de retour de façon à obtenir un bon contact métal-

métal avec la pièce à souder ou la table de travail, le plus près possible de la soudure.

D Isoler la pince de masse quand pas mis à la pièce pour éviter le

contact avec tout objet métallique.

D Ne pas raccorder plus d’une électrode ou plus d’un câble de

masse à une même borne de sortie de soudage. Débrancher le câble pour le procédé non utilisé.

D Utiliser une protection différentielle lors de l’utilisation d’un équi-

pement auxiliaire dans des endroits humides ou mouillés.

Il reste une TENSION DC NON NÉGLIGEABLE dans les sources de soudage onduleur UNE FOIS l’alimentation coupée.

D Éteignez l’unité, débranchez le courant électrique, et déchargez

les condensateurs d’alimentation selon les instructions indiquées dans le manuel avant de toucher les pièces.

En outre, ne pas travailler seul !

selon la norme OSHA 29 CFR 1910.147 (voir nor-

à son Manuel d’Utilisation et aux réglementations

OM-258267 Page 5

LES PIÈCES CHAUDES peuvent

provoquer des brûlures.

D Ne pas toucher à mains nues les parties chaudes. D Prévoir une période de refroidissement avant

de travailler à l’équipement.

D Ne pas toucher aux pièces chaudes, utiliser les outils recomman-

dés et porter des gants de soudage et des vêtements épais pour éviter les brûlures.

LES FUMÉES ET LES GAZ peuvent être dangereux.

Le soudage génère des fumées et des gaz. Leur inhalation

D Eloigner votre tête des fumées. Ne pas respirer les fumées. D À l’intérieur, ventiler la zone et/ou utiliser une ventilation forcée au

niveau de l’arc pour l’évacuation des fumées et des gaz de soudage. Pour déterminer la bonne ventilation, il est recommandé de procéder à un prélèvement pour la composition et la quantité de fumées et de gaz auxquelles est exposé le personnel.

D Si la ventilation est médiocre, porter un respirateur anti-vapeurs

approuvé.

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

tions du fabricant concernant les adhésifs, les revêtements, les nettoyants, les consommables, les produits de refroidissement, les dégraisseurs, les flux et les métaux.

D Travailler dans un espace fermé seulement s’il est bien ventilé ou

en portant un respirateur à alimentation d’air. Demander toujours à un surveillant dûment formé de se tenir à proximité. Des fumées et des gaz de soudage peuvent déplacer l’air et abaisser le niveau d’oxygène provoquant des blessures ou des accidents mortels. S’assurer que l’air de respiration ne présente aucun danger.

D Ne pas souder dans des endroits situés à proximité d’opérations

de dégraissage, de nettoyage ou de pulvérisation. La chaleur et les rayons de l’arc peuvent réagir en présence de vapeurs et former des gaz hautement toxiques et irritants.

D Ne pas souder des métaux munis d’un revêtement, tels que l’acier

galvanisé, plaqué en plomb ou au cadmium à moins que le revêtement n’ait été enlevé dans la zone de soudure, que l’endroit soit bien ventilé, et en portant un respirateur à alimentation d’air. Les revêtements dégager des fumées toxiques en cas de soudage.

et tous les métaux renfermant ces éléments peuvent

peut être dangereux pour votre santé.

LES RAYONS DE L’ARC peuvent provoquer des brûlures dans les yeux et sur la peau.

Le rayonnement de l’arc du procédé de soudage génèr

infrarouges) susceptibles de provoquer des brûlures dans les yeux et sur l 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 pour protéger votre visage et vos yeux pendant le soudage ou pour regarder (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.

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.

des rayons visibles et invisibles intenses (ultraviolets

LE SOUDAGE peut provoquer un incendie ou une explosion.

Le soudage effectué sur des conteneurs fermés tels que des réservoirs, tambours ou des conduites peut

être projetées de l’arc de soudure. La projection d’étincelles, des

pièces chaudes et des équipements chauds peut provoquer des incendies et des brûlures. Le contact accidentel de l’électrode avec des objets métalliques peut provoquer des étincelles, une explosion, un surchauffement ou un incendie. Avant de commencer le soudage, vérifier et s’assurer que l’endroit ne présente pas de danger.

OM-2582687 Page 6

provoquer leur éclatement. Des étincelles peuvent

D Déplacer toutes les substances inflammables à une distance de

10,7 m de l’arc de soudage. En cas d’impossibilité les recouvrir soigneusement

D Ne pas souder dans un endroit là où des étincelles peuvent tomber

sur des substances inflammables.

D Se protéger et d’autres personnes de la projection d’étincelles et

de métal chaud.

D Des étincelles et des matériaux chauds du soudage peuvent

facilement passer dans d’autres zones en traversant de petites fissures et des ouvertures.

D Surveiller tout déclenchement d’incendie et tenir un extincteur à

proximité.

D Le soudage effectué sur un plafond, plancher, paroi ou séparation

peut déclencher un incendie de l’autre côté.

D Ne pas couper ou souder des jantes ou des roues. Les pneus

peuvent exploser s’ils sont chauffés. Les jantes et les roues réparées peuvent défaillir. Voir OSHA 29 CFR 1910.177 énuméré dans les normes de sécurité.

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 Ne pas souder là où l’air ambiant pourrait contenir des poussières,

gaz ou émanations inflammables (vapeur d’essence, par exemple).

D Brancher le câble de masse sur la pièce le plus près possible de la

zone de soudage pour éviter le transport du courant sur une longue distance par des chemins inconnus éventuels en provoquant des risques d’électrocution, d’étincelles et d’incendie.

D Ne pas utiliser le poste de soudage pour dégeler des conduites ge-

lées.

D En cas de non utilisation, enlever la baguette d’électrode du porte-

électrode ou couper le fil à la pointe de contact.

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

D Avant de souder, retirer toute substance combustible de vos po-

ches telles qu’un allumeur au butane ou des allumettes.

D Une fois le travail achevé, assurez−vous qu’il ne reste aucune

trace d’étincelles incandescentes ni de flammes.

D Utiliser exclusivement des fusibles ou coupe−circuits appropriés.

Ne pas augmenter leur puissance; ne pas les ponter.

D Suivre les recommandations dans OSHA 1910.252(a)(2)(iv) et

NFPA 51B pour les travaux à chaud et avoir de la surveillance et un extincteur à proximité.

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

tions du fabricant concernant les adhésifs, les revêtements, les nettoyants, les consommables, les produits de refroidissement, les dégraisseurs, les flux et les métaux.

avec des protections homologués.

DES PIECES DE METAL ou DES SALETES peuvent provoquer des blessures dans les yeux.

la brosse en fil de fer, et le meulage génèrent des étincelles et des particules métalliques volantes. Pendant la période de refroidissement des soudures, elles risquent de projeter du laitier.

D Porter des lunettes de sécurité avec écrans latéraux ou un écran

facial.

D Le soudage, l’écaillement, le passage de la pièce à

LES ACCUMULATIONS DE GAZ risquent de provoquer des blessures ou même la mort.

D Fermer l’alimentation du gaz comprimé en cas

de non utilisation.

D Veiller toujours à bien aérer les espaces confinés ou se servir d’un

respirateur d’adduction d’air homologué.

Les CHAMPS ÉLECTROMAGNÉTIQUES (CEM) peuvent affecter les implants médicaux.

D Les porteurs de stimulateurs cardiaques et

autres implants médicaux doivent rester à distance.

D Les porteurs d’implants médicaux doivent consulter leur médecin

et le fabricant du dispositif avant de s’approcher de la zone où se déroule du soudage à l’arc, du soudage par points, du gougeage, de la découpe plasma ou une opération de chauffage par induction.

LE BRUIT peut endommager l’ouïe.

Le bruit des processus et des équipements peut affecter l’ouïe.

D Porter des protections approuvées pour les

oreilles si le niveau sonore est trop élevé.

LES BOUTEILLES peuvent exploser si elles sont endommagées.

Les bouteilles de gaz comprimé contiennent du gaz sous haute pression. Si une bouteille est

les bouteilles de gaz font normalement partie du procédé de soudage, les manipuler avec précaution.

endommagée, elle peut exploser. Du fait que

D Protéger les bouteilles de gaz comprimé d’une chaleur excessive,

des chocs mécaniques, des dommages physiques, du laitier, des flammes ouvertes, des étincelles et des arcs.

D Placer les bouteilles debout en les fixant dans un support station-

naire ou dans un porte-bouteilles pour les empêcher de tomber ou de se renverser.

D Tenir les bouteilles éloignées des circuits de soudage ou autres

circuits électriques.

D Ne jamais placer une torche de soudage sur une bouteille à gaz. D Une électrode de soudage ne doit jamais entrer en contact avec

une bouteille.

D Ne jamais souder une bouteille pressurisée − risque d’explosion. D Utiliser seulement des bouteilles de gaz comprimé, régulateurs,

tuyaux et raccords convenables pour cette application spécifique; les maintenir ainsi que les éléments associés en bon état.

D Tourner le dos à la sortie de vanne lors de l’ouverture de la vanne

de la bouteille. Ne pas se tenir devant ou derrière le régulateur lors de l’ouverture de la vanne.

D Le couvercle du détendeur doit toujours être en place, sauf lorsque

la bouteille est utilisée ou qu’elle est reliée pour usage ultérieur.

D Utilisez les équipements corrects, les bonnes procédures et suffi-

samment de personnes pour soulever, déplacer et transporter les bouteilles.

D Lire et suivre les instructions sur les bouteilles de gaz comprimé,

l’équipement connexe et le dépliant P-1 de la CGA (Compressed Gas Association) mentionné dans les principales normes de sécurité.

2-3. Symboles de dangers supplémentaires en relation avec l’installation, le fonctionnement et la

maintenance

Risque D’INCENDIE OU D’EXPLOSION.

D Ne pas placer l’appareil sur, au-dessus ou

à proximité de surfaces inflammables.

D Ne pas installer l’appareil à proximité de pro-

D Ne pas surcharger l’installation électrique − s’assurer que

l’alimentation de mettre l’appareil en service.

duits inflammables.

est correctement dimensionnée et protégée avant

LA CHUTE DE L’ÉQUIPEMENT peut provoquer des blessures.

D Utiliser l’anneau de levage uniquement pour

soulever l’appareil, NON PAS les chariots, les bouteilles de gaz ou tout autre accessoire.

D Utilisez les procédures correctes et des équipements d’une capa-

cité appropriée pour soulever et supporter l’appareil.

D En utilisant des fourches de levage pour déplacer l’unité, s’assurer

que les fourches sont suffisamment longues pour dépasser du côté opposé de l’appareil.

D Tenir l’équipement (câbles et cordons) à distance des véhicules

mobiles lors de toute opération en hauteur.

D Suivre les consignes du Manuel des applications pour l’équation

de levage NIOSH révisée (Publication Nº94–110) lors du levage manuelle de pièces ou équipements lourds.

L’EMPLOI EXCESSIF peut SURCHAUFFER L’ÉQUIPEMENT.

D Prévoir une période de refroidissement ; res-

pecter le cycle opératoire nominal.

D Réduire le courant ou le facteur de marche

D Ne pas obstruer les passages d’air du poste.

avant de poursuivre le soudage.

LES ÉTINCELLES PROJETÉES peuvent provoquer des blessures.

D Porter un écran facial pour protéger le visage et

les yeux.

la meuleuse dotée de protecteurs. Cette manœuvre est à exécuter dans un endroit sûr lorsque l’on porte l’équipement homologué de protection du visage, des mains et du corps.

D Les étincelles risquent de causer un incendie − éloigner toute

substance inflammable.

D Affûter l’électrode au tungstène uniquement à

LES CHARGES ÉLECTROSTATIQUES peuvent endommager les circuits imprimés.

D Établir la connexion avec la barrette de terre

avant de manipuler des cartes ou des pièces.

D Utiliser des pochettes et des boîtes antistatiques pour stocker, dé-

placer ou expédier des cartes de circuits imprimes.

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.

LES FILS DE SOUDAGE peuvent provoquer des blessures.

D Ne pas appuyer sur la gâchette avant d’en

avoir reçu l’instruction.

personnes ou toute pièce mécanique en engageant le fil de soudage.

D Ne pas diriger le pistolet vers soi, d’autres

L’EXPLOSION DE LA BATTERIE peut provoquer des blessures.

D Ne pas utiliser l’appareil de soudage pour

charger des batteries ou faire démarrer des véhicules à l’aide de câbles de démarrage, sauf si l’appareil dispose d’une fonctionnalité de charge de batterie destinée à cet usage.

Les PIÈCES MOBILES peuvent causer des blessures.

D S’abstenir de toucher des organes mobiles tels

que des ventilateurs.

panneaux, recouvrements et dispositifs de protection.

D Lorsque cela est nécessaire pour des travaux d’entretien et de dé-

pannage, faire retirer les portes, panneaux, recouvrements ou dispositifs de protection uniquement par du personnel qualifié.

D Remettre les portes, panneaux, recouvrements ou dispositifs de

protection quand l’entretien est terminé et avant de rebrancher l’alimentation

D Maintenir fermés et verrouillés les portes,

électrique.

OM-258267 Page 7

LIRE LES INSTRUCTIONS.

D Lire et appliquer les instructions sur les

étiquettes lation, 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

constructeur.

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.

et le Mode d’emploi avant l’instal-

LE RAYONNEMENT HAUTE FRÉQUENCE (H.F.) risque de provoquer des interférences.

D Le rayonnement haute fréquence (H.F.) peut

pements de radio−navigation et de communication, les services de sécurité et les ordinateurs.

D Demander seulement à des personnes qualifiées familiarisées avec

des équipements électroniques de faire fonctionner l’installation.

D L

’utilisateur

qualifié les interférences résultant de l’installation.

D Si le FCC signale des interférences, arrêter immédiatement l’appareil.

provoquer des interférences avec les équi-

est tenu de faire corriger rapidement par un électricien

D Effectuer régulièrement le contrôle et l’entretien de l’installation. D Maintenir soigneusement fermés les portes et les panneaux des

D Veiller à ce que tout l’équipement de la zone de soudage soit com-

D Pour réduire la possibilité d’interférence, maintenir les câbles de

D Veiller à souder à une distance de 100 mètres de tout équipement

D Veiller à ce que ce poste de soudage soit posé et mis à la terre

D En cas d’interférences après avoir pris les mesures précédentes,

2-4. 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.P65W

arnings.ca.gov

sources de haute fréquence, maintenir les éclateurs à une distance correcte et utiliser une terre et un blindage pour réduire les interférences

éventuelles.

LE SOUDAGE À L’ARC risque de provoquer des interférences.

D L’énergie électromagnétique risque de

provoquer des interférences pour l’équipement électronique l’équipement commandé par ordinateur tel que les robots.

patible électromagnétiquement.

soudage aussi courts que possible, les grouper, et les poser aussi bas que possible (ex. par terre).

électronique

conformément

il incombe à l’utilisateur de prendre des mesures supplémentaires telles que le déplacement du poste, l’utilisation de câbles blindés, l’utilisation de travail.

sensible.

à ce mode d’emploi.

de filtres de ligne ou la pose de protecteurs dans la zone

sensible tel que les ordinateurs et

2-5. Principales normes de sécurité

Safety in Welding, Cutting, and Allied Processes, American Welding Society standard ANSI Standard Z49.1. Website: www.aws.org.

Safe Practice For Occupational And Educational Eye And Face Protection, ANSI Standard Z87.1 from American National Standards Institute.

Website: 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. Website: www

Safe Practices for Welding and Cutting Containers that have Held Combustibles, American Welding Society Standard AWS A6.0 from Global

Engineering Documents. Website: www.global.ihs.com. National Electrical Code, NFPA Standard 70 from National Fire Protection

Association. Website: www.nfpa.org and www. sparky.org. Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1

from Compressed Gas Association. Website:www.cganet.com.

.global.ihs.com.

2-6. Informations relatives aux CEM

Le courant électrique qui traverse tout conducteur génère des champs électromagnétiques 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 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

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

médicaux doivent être prises: Limiter par exemple tout accès

du ruban adhésif ou avec une housse.

(CEM) à certains endroits. Le courant issu d’un

Safety in Welding, Cutting, and Allied Processes, CSA Standard W117.2 from Canadian Standards Association. Website: www.csagroup.org.

Standard for Fire Prevention During Welding, Cutting, and Other Hot Work, NFPA Standard 51B from National Fire Protection Association.

Website: www.nfpa.org. OSHA Occupational Safety and Health Standards for General Industry,

Title 29, Code of Federal Regulations (CFR), Part 1910.177 Subpart N, Part 1910 Subpart Q, and Part 1926, Subpart J. Website: www.osha.gov.

OSHA Important Note Regarding the ACGIH TLV, Policy Statement on

the Uses of TLVs and BEIs. Website: www.osha.gov. Applications Manual for the Revised NIOSH Lifting Equation from the

National Institute for Occupational Safety and Health (NIOSH). Website: www.cdc.gov/NIOSH.

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 procédures précédentes.

OM-2582687 Page 8

SECTION 3 − DEFINITIONS

3-1. Miscellaneous Symbols And Definitions

. A complete Parts List is available at www.HobartWelders.com

Amperage

Positive

Output Voltage Input Off On

Do Not Switch While Welding

Single Phase

Transformer

Rectifier

Rated Supply

Voltage U

Duty Cycle

Voltage

Direct Current

(DC)

Gas Metal Arc

Welding (GMAW)

Suitable For

Welding In An

Environment With

Increased Risk Of

Electric Shock

Load Voltage

Hertz Negative

Single Phase Input

Wire Feed Line Connection

Percent

Rated Supply

Current

Rated No-Load

Voltage (OCV)

Rated Welding

Current

SECTION 4 − SPECIFICATIONS

4-1. Serial Number And Rating Label Location

The serial number and rating information for this product is located on back. Use rating label to determine input power requirements and/or rated output. For future reference, write serial number in space provided on back cover of this manual.

4-2. Software Licensing Agreement

The End User License Agreement and any third-party notices and terms and conditions pertaining to third-party software can be found at

https://www

.hobartwelders.com/eula

. and are incorporated by reference herein.

4-3. Information About Default Weld Parameters And Settings

NOTICE − Each welding application is unique. Although certain Miller Electric products are designed to determine and default to certain typical welding parameters and settings based upon specific and relatively limited application variables input by the end user, such default settings are for reference purposes only; and final weld results can be affected by other variables and application-specific circumstances. The appropriateness of all parameters and settings should be evaluated and modified by the end user as necessary based upon application-specific requirements. The end user is solely responsible for selection and coordination of appropriate equipment, adoption or adjustment of default weld parameters and settings, and ultimate quality and durability of all resultant welds. Miller Electric expressly disclaims any and all implied warranties including any implied warranty of fitness for a particular purpose.

4-4. Unit Specifications

. Do not use information in unit specifications table to determine electrical service requirements. See Sections 5-7 for information on connecting

input power.

Rated Welding

Output

90 A @ 18.5 Volts

DC, 20% Duty Cycle

Wire Type

And Diameter

Maximum Open-

Amperage Range

25 − 140 28 20 2.90 2.50

Solid/

Stainless

.023 − .035 in.

(0.6 − 0.9 mm)

Circuit Voltage

Flux Cored Aluminum

.030 − .035 in.

(0.8 − 0.9 mm)

Amperes Input at

Rated Load Output

115 V, 60 Hz, Single-

Phase

.030 in.

(0.8 mm)

KVA KW

Wire Feed Speed Range

50 − 740 IPM (1.3 − 18.8 m/min) At No Load

40 − 700 IPM (1.0 − 17.8 m/min) Feeding Wire

Weight

W/ Gun

57 lb

(26 kg)

Overall

Dimensions

Length: 19-1/2 in.

(495 mm)

Width: 10-5/8 in.

(270 mm)

Height: 12-3/8 in.

(314 mm)

OM-258267 Page 9

. A complete Parts List is available at www.HobartWelders.com

4-5. Duty Cycle And Overheating

200

140

100

Output Amperes

Duty Cycle is percentage of 10 minutes that unit can weld at rated load without overheating.

If unit overheats, thermostat(s) opens, over temperature LED lights, output stops, and cooling fan runs. Wait fifteen minutes for unit to cool, the thermostat will automatically reset. Reduce amperage or duty cycle before welding.

NOTICE − Exceeding duty cycle can damage unit or gun and void warranty.

Overheating

2 Minutes Welding 8 Minutes Resting

4-6. Volt-Ampere Curves

410

6808

Duty Cycle %

20% duty cycle at 90 amps

Minutes

40 60 100

A or V

Reduce Duty Cycle

duty1 4/95 − 217 623-A

The volt-ampere curves show the minimum and maximum voltage and amperage output capabilities of the welding power source. Curves of other settings fall between the curves shown.

Voltage

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150

OM-258267 Page 10

Amperage

RANGE 1

RANGE 3

RANGE 2

RANGE 5

RANGE 4

ssb1.1 10/91 − 257 981-A

SECTION 5 − INSTALLATION

5-1. Selecting A Location

. A complete Parts List is available at www.HobartWelders.com

! Do not move or operate unit where it could tip.

Location And Airflow

18 in.

(460 mm)

5-2. Installing Welding Gun

. Be sure that gun end is tight

against drive assembly.

18 in.

(460 mm)

! Special installation may be

required where gasoline or

volatile liquids are present − see NEC Article 511 or CEC Section 20.

1 Lifting Handle Use handle to lift unit. 2 Plug From Unit 3 Grounded Receptacle Locate unit near correct input power

supply.

Loc_handler2

1 Drive Assembly 2 Gun Securing Thumbscrew 3 Gun End Loosen thumbscrew. Insert end of

gun through opening in front panel until it bottoms against drive assembly. Tighten

thumbscrew. Welding gun must be inserted

completely to prevent leakage of shielding gas.

4 Gun Trigger Leads Insert leads, one at a time, through

gun opening on front panel. Connect female friction terminals to matching male terminals in unit. Polarity is not important.

Close door.

2018-04 161-122

Incorrect

Gun Not Seated

Exposed O-rings

will cause shielding

gas leakage.

Correct

Gun Fully Seated

258 315-A

OM-258267 Page 11

. A complete Parts List is available at www.HobartWelders.com

5-3. Installing Work Clamp

. Connection hardware must be tightened with proper tools. Do not just

hand tighten hardware. A loose electrical connection will cause poor weld performance and excessive heating of the work clamp.

Tools Needed:

10 mm

5-4. Process/Polarity Table

Process Polarity

GMAW − Solid wire with shielding

gas

FCAW − Self-shielding wire − no

shielding gas

DCEP − Reverse polarity Connect to positive (+) output

DCEN − Straight Polarity Connect to negative (−) output

1 Work Clamp 2 Work Cable From Unit 3 Screw

Cable To Gun Cable To Work

terminal

4 Flat Washer 5 Lock Washer 6 Nut Route work cable through hole in

clamp handle. Secure cable with hardware as shown.

258 550-A

Cable Connections

Connect to negative (−) output ter-

minal

Connect to positive (+) output termi-

nal

5-5. Changing Polarity

1 Lead Connections For Direct

Current Electrode Negative (DCEN)

2 Lead Connections For Direct

Current Electrode Positive (DCEP)

Always read and follow wire manufacturer’s recommended polarity, and see Section 5-4.

Close door.

OM-258267 Page 12

258 321-A

5-6. Installing Gas Supply

. DO NOT use Argon/Mixed gas regulator/flowmeter with CO

shielding gas. See Accessories/Consumable for optional CO gas regulator/flowmeter.

. A complete Parts List is available at www.HobartWelders.com

Obtain gas cylinder and chain to

2 2

Argon Gas Or

Mixed Gas

running gear, wall, or other stationary support so cylinder cannot fall and break off valve.

1 Cap 2 Cylinder Valve Remove cap, stand to side of valve,

and open valve slightly. Gas flow blows dust and dirt from valve. Close valve.

3 Cylinder 4

Regulator/Flowmeter Install so face is vertical. 5 Regulator/Flowmeter Gas

Hose Connection 6 Welding Power Source Gas

Hose Connection Connect supplied gas hose

between regulator/flowmeter gas hose connection, and fitting on rear of welding power source.

7 Flow Adjust Flow rate should be set when gas is

flowing through welding power source and welding gun. Open feedhead pressure assembly so that wire will not feed. Press gun trigger to start gas flow.

Typical flow rate is 20 cfh (cubic feet per hour). Check wire manufacturer’s recommended flow rate.

After flow is set, close pressure assembly.

Feedhead Pressure Assembly Open

Tools Needed:

5/8 or 11/16, 1-1/8 in.

Feedhead Pressure Assembly Closed

258 331-B

OM-258267 Page 13

. A complete Parts List is available at www.HobartWelders.com

5-7. Connecting Input Power

! Installation must meet all National

and Local Codes − have only qualified persons make this installation.

A 115 volts AC, 20 ampere individual circuit protected by time-delay fuses or circuit breaker is required.

! Special installation may be

required where gasoline or volatile liquids are present − see NEC Article 511 or CEC Section 20.

5-8. Selecting Extension Cord (Use Shortest Cord Possible)

Conductor Size − AWG (mm2)*

Single Phase AC

Input Voltage

115 100 (30.5) 50 (15.0)

*Conductor size is based on maximum 3% voltage drop OM-258267 Page 14

10 (5.3) 12 (3.3)

Maximum Allowable Cord Length in ft (m)

1 Plug From Unit 2 Receptacle − NEMA Type 5−15R

(Customer Supplied)

Input6 2011−03 258 641-A

. A complete Parts List is available at www.HobartWelders.com

5-9. Installing Wire Spool And Adjusting Hub Tension

Installing 8 in. (203 mm) Wire Spool

Installing 4 in. (102 mm) Wire Spool

Adapter used with 8

in. (203 mm) spool

only.

Align locking hole in spool with locking pin on spool hub.

When a slight force is needed to turn spool, tension is set.

Retaining ring

used with 8 in. (203

mm) spool only.

Tools Needed:

5-10. Installing Contact Tip And Nozzle

Tools Needed:

MIG Nozzle (Standard)

Use with solid or flux cored wire.

1/2 in.

803 012 / 803 013 -B / Ref. 802 971-C

! Turn off welding power source.

1 Nozzle Remove nozzle. 2 Contact Tip 3 Tip Adapter Thread welding wire through gun (see

Section 5-11). Slide contact tip over wire and tighten

tip into tip adapter. Install nozzle.

Flux Nozzle (Optional)

Use with flux cored wire only. Narrow design allows access in tight spaces and provides better visibility of puddle during welding.

Push nozzle over contact tip and adapter until it is seated onto adapter. End of contact tip will be flush with end of nozzle when installed properly.

Push nozzle over contact tip and adapter until it is seated onto adapter. Contact tip will be exposed approximately 7/16 in. (11.3 mm) when installed properly.

Ref. 246 669-A

OM-258267 Page 15

. A complete Parts List is available at www.HobartWelders.com

5-11. Threading Welding Wire

Tools Needed:

1 Wire Spool 2 Welding Wire 3 Inlet Wire Guide 4 Pressure Adjustment Knob 5 Drive Roll 6 Gun Conduit Cable

Lay gun cable out straight.

Open pressure assembly. Make sure

feed roll is set to correct groove to match wire size (see Section 7-4).

. Hold wire tightly to keep it from unraveling.

Pull and hold wire; cut off end.

6 in.

(150 mm)

OM-258267 Page 16

4 in.

(102 mm)

Straighten approximately 3 or 4 inches (76 or 102 mm) of wire before inserting

wire into guides. Push wire thru guides into gun; continue to hold wire.

. A complete Parts List is available at www.HobartWelders.com

4 5

Tighten

1 2 3 4

Be sure that wire is positioned in proper feed roll groove.

Close and tighten pressure assembly, and let go of wire.

a desired drive roll pressure. (Start with a setting of 2 on the scale.)

Pressure

Indicator

Scale

Remove gun nozzle and contact tip.

6 7

. Use pressure indicator scale to set

Turn power on. Be sure that Voltage range switch is set to range 1, 2, 3, or 4 to feed wire.

Press gun trigger until wire comes out of gun.

(Keep gun cable as straight as possible.) Rotate knob until it “clicks” into detent. Wire will not feed if range switch is set between ranges.

8 9

Tighten

4 To 6 in.

(102 To 152 mm)

WOOD

Be sure that tip matches wire diameter. Reinstall contact tip and nozzle.

Feed wire to check drive roll pressure.

Tighten knob enough to prevent slipping.

Cut off wire. Close door.

OM-258267 Page 17

1 2 3 4

258 339-A

. A complete Parts List is available at www.HobartWelders.com

SECTION 6 − OPERATION

6-1. Controls

1 Wire Speed Control Use control to select a wire feed speed. As

Voltage switch setting increases, wire speed range also increases (see weld setting label in welding power source or Section 6-2).

2 Power Switch 3 Voltage Switch The higher the selected number, the

OM-258267 Page 18

thicker the material that can be welded (see weld setting label in welding power source or Section 6-2). Do not switch under load.

. Switch must “click” into detent

position for weld output.

4 Over Temperature Light Light illuminates if main transformer over-

heats.

258 346-A

5 Gun Trigger Switch Pressing gun trigger energizes wire feed

motor and gas valve for shielding gas flow. Gun trigger switch must be pressed (closed) and held to weld. Releasing the gun trigger switch shuts off the weld output, wire feed, and gas flow (where applicable).

6-2. Weld Parameter Chart

. A complete Parts List is available at www.HobartWelders.com

258 069-B

OM-258267 Page 19

. A complete Parts List is available at www.HobartWelders.com

SECTION 7 − MAINTENANCE & TROUBLESHOOTING

7-1. Routine Maintenance

! Disconnect power

before maintaining.

. Maintain more often

during severe conditions.

n = Check Z = Change ~ = Clean l = Replace * To be done by Factory Authorized Service Agent

3 Months

Reference

l Damaged Or Unreadable Labels l Repair Or Replace

Cracked Weld Cable

6 Months

~ Inside Unit

7-2. Overload Protection

~ Clean And Tighten Weld Terminals

Supplementary

CB1 protects unit from overload. If CB1 opens, unit shuts down.

Reset supplementary protector.

Protector CB1

802 441

7-3. Drive Motor Protection

Drive motor protection circuit protects drive motor from overload. If drive motor becomes inoperative, release gun trigger and wait until protection circuit resets allowing drive motor to feed wire again.

OM-258267 Page 20

7-4. Changing Drive Roll Or Wire Inlet Guide

5 . Be sure gun is fully inserted into drive

Two Groove Drive Roll*

.030/.035 V Groove is used for Solid Wire

Stamped .030/.035 VK Grooved

Three Groove Drive Roll*

.024 V Groove

housing. Liner to drive roll distance should be within 1/8 in. (3.2 mm). of each other.

.030/.035 VK Groove is used for Flux Core (Gasless) Wire

Stamped .030/.035 V

.030−.035 V Groove

.030-.035 VK Groove

. A complete Parts List is available at www.HobartWelders.com

1 Inlet Wire Guide Securing Screw 2 Inlet Wire Guide Loosen thumbscrew. Slide tip as close to

drive rolls as possible without touching. Tighten thumbscrew.

3 Two Or Three Groove Drive Roll

. Unit comes with one drive roll. Drive roll

included will vary by manufacture date.

Two Groove drive rolls have two different size grooves. When installed, the groove size that can be read on the face of the drive roll is the size of the groove that is lined up for use.

Three Groove drive rolls have three different size grooves. The text aligned with the drive roll retaining pin indicates the selected groove.

. VK (Knurled) groove is used for flux

cored wire and V groove is used for solid wire.

4 Retaining Pin To secure drive roll, locate open slot and

push drive roll completely over retaining pin, then rotate drive roll (1/4 turn) to closed slot.

5 Drive Roll Tension Knob Using flux core wire with VK groove, tension

should be set between 1-1/2 to 2. Higher setting may cause welding wire to deform and not allow proper feeding.

Flux Core Wire − Recommended stickout is 1/2 in. (12.7 mm) from gun tip.

Solid Wire − Recommended stickout is 3/8 in. (9.5 mm) from gun tip.

Actual drive roll may differ from that shown. See Section 10 for additional drive roll configurations.

*Drive roll included will vary by manufacture date.

258 380-C

OM-258267 Page 21

. A complete Parts List is available at www.HobartWelders.com

7-5. Troubleshooting Table

Trouble Remedy

No weld output; wire does not feed; fan does not run.

Secure power cord plug in receptacle (see Section 5-7).

Replace building line fuse or reset circuit breaker if open.

Place Power switch in On position (see Section 6-1).

Reset welding power source supplementary protector (see Section 7-2).

No weld output; wire does not feed; fan motor continues to run.

No weld output; wire feeds.

Low weld output. Connect unit to proper input voltage or check for low line voltage.

Electrode wire feeding stops during welding.

Thermostat TP1 open (overheating). Over temperature LED lights. Allow fan to run with gun trigger switch off; thermostat closes when unit has cooled (see Section 4-5).

Check Voltage range switch position. Rotate knob until it “clicks” into detent at desired range setting.

Secure gun trigger leads (see Section 5-2).

Connect work clamp to get good metal to metal contact.

Replace contact tip (see Section 5-10).

Check for proper polarity connections (see Section 5-5).

Check thumbscrew securing gun end to feed head adapter and tighten if necessary.

Place voltage switch in desired position (see Section 6-1).

Straighten gun cable and/or replace damaged parts. Adjust drive roll pressure (see Section 5-11). Change to proper drive roll groove (see Section 7-4). Readjust hub tension (see Section 5-9). Be sure that wire is positioned in proper drive roll groove and wire is laying in the groove. Replace contact tip if blocked (see Section 5-10). Clean or replace wire inlet guide or liner if dirty or plugged (see Section 5-11). Replace drive roll or pressure bearing if worn or slipping (see Section 7-4). Secure gun trigger leads or repair leads (see Section 5-2). Check and clear any restrictions at drive assembly and liner (see Section 5-11). Release gun trigger and allow gun and motor protection circuitry to reset (see Section 7-3). Gun is not secured to feed head. Check thumbscrew securing gun end to feed head adapter and tighten

if necessary.

Have nearest Factory Authorized Service Agent check drive motor.

OM-258267 Page 22

SECTION 8 − ELECTRICAL DIAGRAM

Figure 8-1. Circuit Diagram

257 502-A

OM-258267 Page 23

SECTION 9 − GMAW WELDING (MIG) GUIDELINES

9-1. Typical GMAW (MIG) Process Connections

Regulator/ Flowmeter

Wire Feeder/

Welding Power Source

! Weld current can damage

electronic parts in vehicles. Disconnect both battery cables before welding on a vehicle. Place work clamp as close to the weld as possible.

Shielding Gas

Gas

9-2. Typical GMAW (MIG) Process Control Settings

1/16 or

0.0625 in.

Gun

Workpiece

Work Clamp

GMAW1 2018−01 (GMAW Only) − Ref. 801909-A

. These settings are guidelines only. Material

and wire type, joint design, fitup, position, shielding gas, etc. affect settings. Test welds to be sure they comply to specifications.

1 Material Thickness Material thickness determines weld parameters. Convert material thickness to amperage (A):

0.001 in. (0.025 mm) = 1 ampere

0.0625 in. (1.59 mm) ÷ 0.001 = 62.5 A 2 Select Wire Size See table below. 3 Select Wire Feed Speed (Amperage) Wire feed speed (amperage) controls weld pene-

tration. See table below. 4 Select Voltage Voltage controls height and width of weld bead. Low Voltage: wire stubs into work

High Voltage: arc is unstable (spatter) Set voltage midway between high and low voltage.

Wire Size Amperage Range Recommended Wire Feed Speed Wire Feed Speed*

0.023 in. (0.58 mm) 30−90 A 3.5 in. (89 mm) per amp 3.5 x 62.5 A = 219 ipm (5.56 mpm)

0.030 in. (0.76 mm) 40−145 A 2 in. (51 mm) per amp 2 x 62.5 A = 125 ipm (3.19 mpm)

0.035 in. (0.89 mm) 50−180 A 1.6 in. (41 mm) per amp 1.6 x 62.5 A = 100 ipm (2.56 mpm)

*62.5 A based on 1/16 in. (1.6 mm) material thickness. ipm = inches per minute; mpm = meters per minute

OM-258267 Page 24

9-3. Holding And Positioning Welding Gun

. Welding wire is energized when

gun trigger is pressed. Before lowering helmet and pressing trigger, be sure wire is no more than 1/2 in. (13 mm) past end of nozzle, and tip of wire is positioned correctly on seam.

1 Hold Gun and Control Gun

Trigger 2 Workpiece 3 Work Clamp 4 Electrode Extension (Stickout)

Solid Wire − 3/8 to 1/2 in.

(9 to 13 mm)

5 Cradle Gun and Rest Hand on

Workpiece

0°-15°

90° 90°

End View of Work Angle Side View of Gun Angle

Groove Welds

9-4. Conditions That Affect Weld Bead Shape

10°

Push

Gun Angles And Weld Bead Profiles

Perpendicular

45°

End View of Work Angle Side View of Gun Angle

Fillet Welds

0°-15°

S-0421-A

. Weld bead shape depends

on gun angle, direction of travel, electrode extension (stickout), travel speed, thickness of base metal, wire

10°

feed speed (weld current), and voltage.

Drag

Short Normal Long

Electrode Extensions (Stickout)

Slow

Gun Travel Speed

Short Normal Long

Fillet Weld Electode Extensions (Stickout)

Normal Fast

S-0634

OM-258267 Page 25

9-5. Gun Movement During Welding

1 2

9-6. Poor Weld Bead Characteristics

. Normally, a single stringer

bead is satisfactory for most narrow groove weld joints; however, for wide groove weld joints or bridging across gaps, a weave bead or multiple stringer beads works better.

1 Stringer Bead − Steady

Movement Along Seam

2 Weave Bead − Side To Side

Movement Along Seam 3 Weave Patterns Use weave patterns to cover a wide

area in one pass of the electrode.

S-0054-A

1 Large Spatter Deposits 2 Rough, Uneven Bead 3 Slight Crater During Welding 4 Bad Overlap

5 Poor Penetration

9-7. Good Weld Bead Characteristics

1 Fine Spatter 2 Uniform Bead 3 Moderate Crater During

Welding Weld a new bead or layer for each

1/8 in. (3.2 mm) thickness in metals being welded.

4 No Overlap 5 Good Penetration into Base

Metal

S-0053-A

S-0052-B

OM-258267 Page 26

9-8. Troubleshooting − Excessive Spatter

Excessive Spatter − scattering of molten metal particles that cool to solid form near weld bead.

S-0636

Possible Causes Corrective Actions

Wire feed speed too high. Select lower wire feed speed.

Voltage too high. Select lower voltage range.

Electrode extension (stickout) too long. Use shorter electrode extension (stickout).

Workpiece dirty. Remove all grease, oil, moisture, rust, paint, undercoating, and dirt from work surface before welding.

Insufficient shielding gas at welding arc. Increase flow of shielding gas at regulator/flowmeter and/or prevent drafts near welding arc.

Dirty welding wire. Use clean, dry welding wire.

Eliminate pickup of oil or lubricant on welding wire from feeder or liner.

Incorrect polarity. Check polarity required by welding wire, and change to correct polarity at welding power source.

9-9. Troubleshooting − Porosity

Porosity − small cavities or holes resulting from gas pockets in weld metal.

S-0635

Possible Causes Corrective Actions

Insufficient shielding gas at welding arc. Increase flow of shielding gas at regulator/flowmeter and/or prevent drafts near welding arc.

Remove spatter from gun nozzle.

Check gas hoses for leaks.

Place nozzle 1/4 to 1/2 in. (6-13 mm) from workpiece.

Hold gun near bead at end of weld until molten metal solidifies.

Wrong gas. Use welding grade shielding gas; change to different gas.

Dirty welding wire. Use clean, dry welding wire.

Eliminate pick up of oil or lubricant on welding wire from feeder or liner.

Workpiece dirty. Remove all grease, oil, moisture, rust, paint, coatings, and dirt from work surface before welding.

Use a more highly deoxidizing welding wire (contact supplier).

Welding wire extends too far out of nozzle. Be sure welding wire extends not more than 1/2 in. (13 mm) beyond nozzle.

9-10. Troubleshooting − Excessive Penetration

Excessive Penetration − weld metal melting through base metal and hanging underneath weld.

Excessive Penetration

Possible Causes Corrective Actions

Excessive heat input. Select lower voltage range and reduce wire feed speed.

Good Penetration

Increase travel speed.

S-0639

OM-258267 Page 27

9-11. Troubleshooting − Lack Of Penetration

Lack Of Penetration − shallow fusion between weld metal and base metal.

Lack of Penetration Good Penetration

Possible Causes Corrective Actions

Improper joint preparation. Material too thick. Joint preparation and design must provide access to bottom of groove while

maintaining proper welding wire extension and arc characteristics.

Improper weld technique. Maintain normal gun angle of 0 to 15 degrees to achieve maximum penetration.

Keep arc on leading edge of weld puddle.

Be sure welding wire extends not more than 1/2 in. (13 mm) beyond nozzle.

Insufficient heat input. Select higher wire feed speed and/or select higher voltage range.

Reduce travel speed.

Incorrect polarity. Check polarity required by welding wire, and change to correct polarity at welding power source.

S-0638

9-12. Troubleshooting − Incomplete Fusion

Incomplete Fusion − failure of weld metal to fuse completely with base metal or a preceeding weld bead.

Possible Causes Corrective Actions

Workpiece dirty. Remove all grease, oil, moisture, rust, paint, undercoating, and dirt from work surface before

welding.

Insufficient heat input. Select higher voltage range and/or adjust wire feed speed.

Improper welding technique. Place stringer bead in proper location(s) at joint during welding.

Adjust work angle or widen groove to access bottom during welding.

Momentarily hold arc on groove side walls when using weaving technique.

Keep arc on leading edge of weld puddle.

Use correct gun angle of 0 to 15 degrees.

9-13. Troubleshooting − Burn-Through

Burn-Through − weld metal melting completely through base metal resulting in holes where no metal remains.

S-0637

Possible Causes Corrective Actions

Excessive heat input. Select lower voltage range and reduce wire feed speed.

Increase and/or maintain steady travel speed.

OM-258267 Page 28

S-0640

9-14. Troubleshooting − Waviness Of Bead

Waviness Of Bead − weld metal that is not parallel and does not cover joint formed by base metal.

Possible Causes Corrective Actions

Welding wire extends too far out of nozzle. Be sure welding wire extends not more than 1/2 in. (13 mm) beyond nozzle.

Unsteady hand. Support hand on solid surface or use two hands.

9-15. Troubleshooting − Distortion

Distortion − contraction of weld metal during welding that forces base metal to move.

Base metal moves

in the direction of

the weld bead.

Possible Causes Corrective Actions

Excessive heat input. Use restraint (clamp) to hold base metal in position.

S-0641

S-0642

Notes

Make tack welds along joint before starting welding operation.

Select lower voltage range and/or reduce wire feed speed.

Increase travel speed.

Weld in small segments and allow cooling between welds.

OM-258267 Page 29

9-16. Common GMAW (MIG) Shielding Gases

This is a general chart for common gases and where they are used. Many different combinations (mixtures) of shielding gases have been developed over the years. The most commonly used shielding gases are listed in the following table.

Application

Gas

Spray Arc

Steel

Short

Circuiting

Steel

Spray Arc

Stainless

Steel

Short

Circuiting

Stainless

Steel

Spray Arc

Aluminum

Short

Circuiting

Aluminum

Argon All Positions All Positions All Positions

Argon + 1% O

Argon + 2% O

Argon + 5%

Argon + 10%

Argon + 25%

Argon + 50%

Flat &

Horizontal Fillet

Flat &

Horizontal Fillet

Flat &

Horizontal Fillet

Flat &

Horizontal Fillet

All Positions

Helium All Positions

Flat &

Horizontal Fillet

Flat &

Horizontal Fillet

All Positions

GMAW-P

Argon +

Helium

Tri-Mix

1 Heavy Thicknesses 2 90% HE + 7-1/2% AR + 2-1/2% CO

All Positions

OM-258267 Page 30

9-17. Troubleshooting Guide For Semiautomatic Welding Equipment

Problem Probable Cause Remedy

Wire feed motor operates, but wire does not feed.

Too little pressure on wire feed rolls. Increase pressure setting on wire feed rolls.

Incorrect wire feed rolls. Check size stamped on wire feed rolls, replace to match

wire size and type if necessary.

Wire spool brake pressure too high. Decrease brake pressure on wire spool.

Wire curling up in front of the wire feed rolls (bird nesting).

Wire feeds, but no gas flows.

Restriction in the gun and/or assembly. Check and replace cable, gun, and contact tip if

Too much pressure on wire feed rolls. Decrease pressure setting on wire feed rolls.

Incorrect cable liner or gun contact tip size. Check size of contact tip and check cable liner length

Gun end not inserted into drive housing properly. Loosen gun securing bolt in drive housing and push gun

Dirty or damaged (kinked) liner. Replace liner.

Gas cylinder empty. Replace empty gas cylinder.

Gas nozzle plugged. Clean or replace gas nozzle.

Gas cylinder valve not open or flowmeter not adjusted. Open gas valve at cylinder and adjust flow rate.

Restriction in gas line. Check gas hose between flowmeter and wire feeder, and

Loose or broken wires to gas solenoid. Have Factory Authorized Service Agent repair wiring.

Gas solenoid valve not operating. Have Factory Authorized Service Agent replace gas

Incorrect primary voltage connected to welding power source.

damaged. Check size of contact tip and cable liner, replace if necessary.

and diameter, replace if necessary.

end into housing just enough so it does not touch wire feed rolls.

gas hose in gun and cable assembly.

solenoid valve.

Check primary voltage and relink welding power source for correct voltage.

Welding arc not stable.

Wire slipping in drive rolls. Adjust pressure setting on wire feed rolls. Replace worn

Wrong size gun liner or contact tip. Match liner and contact tip to wire size and type.

Incorrect voltage setting for selected wire feed speed on welding power source.

Loose connections at the gun weld cable or work cable. Check and tighten all connections.

Gun in poor shape or loose connection inside gun. Repair or replace gun as necessary.

drive rolls if necessary.

Readjust welding parameters.

OM-258267 Page 31

SECTION 10 − ACCESSORIES/CONSUMABLES

10-1. Accessories

Part No. Description Remarks

194776 Small Running Gear/Cylinder Rack For One Small Gas Cylinder, 75 lb (34 kg) max. 195186 Protective Cover Weatherproof Nylon 285033 HR-100 Replacement Gun 10 ft length/.030−.035 wire size

221 037**

770198*

237 702** Regulator/Flowmeter

*Available at farm and tool supply retailers. ** Available at Hobart/Miller welding distributors.

Regulator/Flowmeter

10-2. Consumables

Item Hobart Package Part No.* Miller Package Part No. **

Contact Tips

.023/.025 in. (0.6 mm) 770174 (5 per package) 087299 (10 per package)

.030 in. (0.8 mm) 770177 (5 per package) 000067 (10 per package) .035 in. (0.9 mm) 770180 (5 per package) 000068 (10 per package)

For Argon and Argon mixed shielding gas. Use

with replacement hose 269 815.

For CO2 shielding gas. Use with replacement gas

hose 144108.

MIG Nozzle (Standard) 770404 169715

Gasless Flux Cored Nozzle 770487 226190

Tip Adapter 770402 169716

Replacement Liners

.023/.025 in. (0.6 mm) 196139 194 010 .030/.035 in. (0.8/0.9 mm) 196139 194 011 .035/.045 in. (0.9/1.2 mm) 196140 194 012

Replacement Drive Rolls For All Feed Head Assemblies

.023/.025 in. (0.6 mm) and

.030/.035 in. (0.8/ 0.9 mm)

V and VK Groove

*Available at farm and tool supply retailers. ** Available at Hobart/Miller welding distributors.

261157 261157

. A complete Parts List is available on-line at www.HobartWelders.com

To maintain the factory original performance of your equipment, use only Manufacturer’s Suggested Replacement Parts. Model and serial number required when ordering parts from your local distributor.

OM-258267 Page 32

Warranty Questions?

Call 1-800-332-3281 8 AM − 5 PM EST

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 or call 1-800-332-3281. The expertise of the distributor and Hobart is there to help you, every step of the way.

Assistance

Visit the Hobart website:

www.HobartWelders.com

Effective January 1, 2020

5/3/1 WARRANTY applies to all Hobart welding equipment, plasma cutters and spot welders with a

serial number preface of NA or newer.

This limited warranty supersedes all previous Hobart warranties and is exclusive with

Hobart products are serviced by Hobart or Miller Authorized Service Agencies.

LIMITED WARRANTY − Subject to the terms and conditions below, Miller Electric Mfg. LLC, dba Hobart Welding Products, Appleton, Wisconsin, warrants to its original retail purchaser that new Hobart equipment sold after the effective date of this limited warranty is free of defects in material and workmanship at the time it is shipped. 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, Hobart/Miller will repair or replace any warranted parts or components that fail due to such defects in material or workmanship. Hobart/Miller must be notified in writing within thirty (30) days of such defect or failure, at which time Hobart/Miller will provide instructions on the warranty claim procedures to be followed. Notifications submitted as online warranty claims must provide detailed descriptions of the fault and troubleshooting steps taken to diagnose failed parts. Warranty claims that lack the required information as defined in the Miller Service Operation Guide (SOG) may be denied by Miller.

Hobart/Miller shall honor warranty claims on warranted equipment listed below in the event of a defect within the warranty coverage time periods listed below. Warranty time periods start on the delivery date of the equipment to the original retail purchaser, or 12 months after the equipment is shipped to a North American or international distributor, whichever occurs first.

1. 5 Years — Parts and Labor * Original Main Power Rectifiers only to include SCRs,

diodes, and discrete rectifier modules * Reactors * Stabilizers * Transformers

2. 3 Years — Parts and Labor Unless Specified * Drive Systems * Idle Module * PC Boards * Rotors, Stators and Brushes * Solenoid Valves * Switches and Controls

3. 1 Year — Parts and Labor Unless Specified (90 days for industrial use)

* Accessories (Kits) * Contactors * 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.) * HF Units * MIG Flowgauge Regulators (No Labor) * MIG Guns/TIG Torches * Motor-Driven Guns * Plasma Cutting Torches * Relays * Remote Controls * Replacement Parts (No labor) − 90 days * Running Gear/Trailers * Spoolguns

no other guarantees or warranties expressed or implied.

4. 6 Months — Parts * Batteries

5. Engines and tires are warranted separately by the manufacturer.

Hobart’s 5/3/1 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 Hobart/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 Hobart/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

4. Defects caused by accident, unauthorized repair, or improper testing.

HOBART 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 Hobart’s/Miller’s option, either: (1) repair; or (2) replacement; or, if approved in writing by Hobart/Miller, (3) the pre-approved cost of repair or replacement at an authorized Hobart/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 Hobart’s/Miller’s written approval. Return shipment shall be at customer’s risk and expense.

The above remedies are F.O.B. Appleton, WI, or Hobart’s/Miller’s authorized service facility. Transportation and freight are the customer’s 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 HOBART/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 HOBART/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.

for the equipment.

Hobart warr 2020-01

Owner’s Record

Please complete and retain with your personal records.

Model Name Serial/Style Number

Purchase Date (Date which equipment was delivered to original customer.)

Distributor

Address

City

State Zip

Thank you for purchasing Hobart. Our trained technical support team is dedicated to your satisfaction. For questions regarding performance, operation, or service, contact us!

Resources Available

Always provide Model Name and Serial/Style Number.

To locate a Service Center:

Call 1-800-332-3281 or visit our website at www.HobartWelders.com/wheretobuy

For Technical Assistance:

Call 1-800-332-3281 8 AM to 5 PM EST − Monday through Friday

Miller Electric Mfg. LLC

An Illinois Tool Works Company 1635 West Spencer Street Appleton, WI 54914 USA

For Assistance:

Call 1-800-332-3281

Hobart HANDLER 140 AND H100S2-10 GUN User guide

Specifications and Main Features

Frequently Asked Questions

User Manual