Miller Electric Welder OM 230 User Manual

OM-230 693C  
Processes  
2007−11  
MIG (GMAW) Welding  
Flux Cored (FCAW) Welding  
Description  
Arc Welding Power Source  
and Wire Feeder  
R
Millermatic 252  
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File: MIG (GMAW)  
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TABLE OF CONTENTS  
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TABLE OF CONTENTS  
WARRANTY  
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SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING  
som _2007−04  
7
Protect yourself and others from injury — read and follow these precautions.  
1-1. Symbol Usage  
DANGER! − Indicates a hazardous situation which, if  
. Indicates special instructions.  
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.  
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.  
NOTICE − Indicates statements not related to personal injury.  
1-2. Arc Welding Hazards  
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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  
groundedreceptacle outlet.  
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  
follow all Safety Standards.  
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When making input connections, attach proper grounding conduc-  
tor first − double-check connections.  
Keep cords dry, free of oil and grease, and protected from hot metal  
and sparks.  
Only qualified persons should install, operate, maintain, and  
repair this unit.  
Frequently inspect input power cord for damage or bare wiring −  
replace cord immediately if damaged − bare wiring can kill.  
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Turn off all equipment when not in use.  
During operation, keep everybody, especially children, away.  
Do not use worn, damaged, undersized, or poorly spliced cables.  
Do not drape cables over your body.  
If earth grounding of the workpiece is required, ground it directly  
with a separate cable.  
ELECTRIC SHOCK can kill.  
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Do not touch electrode if you are in contact with the work, ground,  
or another electrode from a different machine.  
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  
Do not touch electrode holders connected to two welding ma-  
chines at the same time since double open-circuit voltage will be  
present.  
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  
groundedequipment is a hazard.  
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Use only well-maintained equipment. Repair or replace damaged  
parts at once. Maintain unit according to manual.  
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Do not touch live electrical parts.  
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Wear a safety harness if working above floor level.  
Keep all panels and covers securely in place.  
Wear dry, hole-free insulating gloves and body protection.  
Insulate yourself from work and ground using dry insulating mats  
or covers big enough to prevent any physical contact with the work  
or ground.  
Clamp work cable with good metal-to-metal contact to workpiece  
or worktable as near the weld as practical.  
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Insulate work clamp when not connected to workpiece to prevent  
contact with any metal object.  
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Do not use AC output in damp areas, if movement is confined, or if  
there is a danger of falling.  
Do not connect more than one electrode or work cable to any  
single weld output terminal.  
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Use AC output ONLY if required for the welding process.  
If AC output is required, use remote output control if present on  
unit.  
SIGNIFICANT DC VOLTAGE exists in inverter-type  
welding power sources after removal of input  
power.  
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Additionalsafety precautions are required when any of the follow-  
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 unavoid-  
able or accidental contact with the workpiece or ground. For these  
conditions, use the following equipment in order presented: 1) a  
semiautomaticDC constant voltage (wire) welder, 2) a DC manual  
(stick) welder, or 3) an AC welder with reduced open-circuit volt-  
age. In most situations, use of a DC, constant voltage wire welder  
is recommended. And, do not work alone!  
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Turn Off inverter, disconnect input power, and discharge input  
capacitors according to instructions in Maintenance Section  
before touching any parts.  
HOT PARTS can cause severe burns.  
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Do not touch hot parts bare handed.  
Allow cooling period before working on gun or  
torch.  
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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).  
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To handle hot parts, use proper tools and/or  
wear heavy, insulated welding gloves and  
clothing to prevent burns.  
Properly install and ground this equipment according to its  
Owner’s Manual and national, state, and local codes.  
OM-230 693 Page 1  
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Do not use welder to thaw frozen pipes.  
FUMES AND GASES can be hazardous.  
Remove stick electrode from holder or cut off welding wire at  
contact tip when not in use.  
Welding produces fumes and gases. Breathing  
these fumes and gases can be hazardous to your  
health.  
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Wear oil-free protective garments such as leather gloves, heavy  
shirt, cuffless trousers, high shoes, and a cap.  
Remove any combustibles, such as a butane lighter or matches,  
from your person before doing any welding.  
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Keep your head out of the fumes. Do not breathe the fumes.  
After completion of work, inspect area to ensure it is free of sparks,  
glowing embers, and flames.  
If inside, ventilate the area and/or use local forced ventilation at the  
arc to remove welding fumes and gases.  
Use only correct fuses or circuit breakers. Do not oversize or by-  
pass them.  
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If ventilation is poor, wear an approved air-supplied respirator.  
Read and understand the Material Safety Data Sheets (MSDSs)  
and the manufacturer’s instructions for metals, consumables,  
coatings, cleaners, and degreasers.  
Follow requirements in OSHA 1910.252 (a) (2) (iv) and NFPA 51B  
for hot work and have a fire watcher and extinguisher nearby.  
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Work in a confined space only if it is well ventilated, or while  
wearing an air-supplied respirator. Always have a trained watch-  
person nearby. Welding fumes and gases can displace air and  
lower the oxygen level causing injury or death. Be sure the breath-  
ing air is safe.  
FLYING METAL or DIRT can injure eyes.  
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Welding, chipping, wire brushing, and grinding  
cause sparks and flying metal. As welds cool,  
they can throw off slag.  
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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.  
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Wear approved safety glasses with side  
shields even under your welding helmet.  
Do not weld on coated metals, such as galvanized, lead, or  
cadmiumplated 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.  
BUILDUP OF GAS can injure or kill.  
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Shut off shielding gas supply when not in use.  
Always ventilate confined spaces or use  
approved air-supplied respirator.  
ARC RAYS can burn eyes and skin.  
MAGNETIC FIELDS can affect Implanted  
Medical Devices.  
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.  
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Wearers of Pacemakers and other Implanted  
Medical Devices should keep away.  
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Wear an approved welding helmet fitted with a proper shade of fil-  
ter lenses to protect your face and eyes when welding or watching  
(see ANSI Z49.1 and Z87.1 listed in Safety Standards).  
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ImplantedMedical 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.  
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Wear approved safety glasses with side shields under your  
helmet.  
Use protective screens or barriers to protect others from flash,  
glare and sparks; warn others not to watch the arc.  
NOISE can damage hearing.  
Noise from some processes or equipment can  
damagehearing.  
Wear protective clothing made from durable, flame-resistant mate-  
rial (leather, heavy cotton, or wool) and foot protection.  
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Wear approved ear protection if noise level is  
high.  
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  
workpiece, and hot equipment can cause fires and  
CYLINDERS can explode if damaged.  
Shielding 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.  
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.  
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Protect compressed gas cylinders from excessive heat, mechani-  
cal shocks, physical damage, slag, open flames, sparks, and arcs.  
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Remove all flammables within 35 ft (10.7 m) of the welding arc. If  
this is not possible, tightly cover them with approved covers.  
Install cylinders in an upright position by securing to a stationary  
support or cylinder rack to prevent falling or tipping.  
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Do not weld where flying sparks can strike flammable material.  
Protect yourself and others from flying sparks and hot metal.  
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Keep cylinders away from any welding or other electrical circuits.  
Never drape a welding torch over a gas cylinder.  
Be alert that welding sparks and hot materials from welding can  
easily go through small cracks and openings to adjacent areas.  
Never allow a welding electrode to touch any cylinder.  
Never weld on a pressurized cylinder − explosion will result.  
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Watch for fire, and keep a fire extinguisher nearby.  
Be aware that welding on a ceiling, floor, bulkhead, or partition can  
cause fire on the hidden side.  
Use only correct shielding gas cylinders, regulators, hoses, and fit-  
tings designed for the specific application; maintain them and  
associated parts in good condition.  
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Do not weld on closed containers such as tanks, drums, or pipes,  
unless they are properly prepared according to AWS F4.1 (see  
Safety Standards).  
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Turn face away from valve outlet when opening cylinder valve.  
Keep protective cap in place over valve except when cylinder is in  
use or connected for use.  
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Do not weld where the atmosphere may contain flammable dust,  
gas, or liquid vapors (such as gasoline).  
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Use the right equipment, correct procedures, and sufficient num-  
ber of persons to lift and move cylinders.  
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.  
Read and follow instructions on compressed gas cylinders,  
associated equipment, and Compressed Gas Association (CGA)  
publication P-1 listed in Safety Standards.  
OM-230 693 Page 2  
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1-3. Additional Symbols For Installation, Operation, And Maintenance  
FIRE OR EXPLOSION hazard.  
MOVING PARTS can cause injury.  
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Do not install or place unit on, over, or near  
combustiblesurfaces.  
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Keep away from moving parts such as fans.  
Keep all doors, panels, covers, and guards  
closed and securely in place.  
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Do not install unit near flammables.  
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Do not overload building wiring − be sure power supply system is  
properly sized, rated, and protected to handle this unit.  
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Have only qualified persons remove doors, panels, covers, or  
guards for maintenance as necessary.  
Reinstall doors, panels, covers, or guards when maintenance is  
finished and before reconnecting input power.  
FALLING UNIT can cause injury.  
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Use lifting eye to lift unit only, NOT running  
gear, gas cylinders, or any other accessories.  
READ INSTRUCTIONS.  
Use equipment of adequate capacity to lift and  
support unit.  
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Read Owner’s Manual before using or servic-  
ing unit.  
If using lift forks to move unit, be sure forks are  
long enough to extend beyond opposite side of  
unit.  
Use only genuine replacement parts from the  
manufacturer.  
OVERUSE can cause OVERHEATING  
H.F. RADIATION can cause interference.  
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Allow cooling period; follow rated duty cycle.  
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High-frequency (H.F.) can interfere with radio  
navigation, safety services, computers, and  
communicationsequipment.  
Reduce current or reduce duty cycle before  
starting to weld again.  
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Do not block or filter airflow to unit.  
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Have only qualified persons familiar with  
electronic equipment perform this installation.  
FLYING SPARKS can cause injury.  
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The user is responsible for having a qualified electrician prompt-  
ly correct any interference problem resulting from the installa-  
tion.  
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Wear a face shield to protect eyes and face.  
Shape tungsten electrode only on grinder with  
proper guards in a safe location wearing proper  
face, hand, and body protection.  
If notified by the FCC about interference, stop using the  
equipmentat once.  
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Have the installation regularly checked and maintained.  
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Sparks can cause fires — keep flammables away.  
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.  
STATIC (ESD) can damage PC boards.  
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Put on grounded wrist strap BEFORE handling  
boards or parts.  
ARC WELDING can cause interference.  
Use proper static-proof bags and boxes to  
store, move, or ship PC boards.  
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Electromagnetic energy can interfere with  
sensitive electronic equipment such as  
computers and computer-driven equipment  
such as robots.  
MOVING PARTS can cause injury.  
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Be sure all equipment in the welding area is  
electromagneticallycompatible.  
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Keep away from moving parts.  
Keep away from pinch points such as drive  
rolls.  
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To reduce possible interference, keep weld cables as short as  
possible, close together, and down low, such as on the floor.  
Locate welding operation 100 meters from any sensitive elec-  
tronic equipment.  
WELDING WIRE can cause injury.  
Be sure this welding machine is installed and grounded  
according to this manual.  
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Do not press gun trigger until instructed to do  
so.  
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.  
Do not point gun toward any part of the body,  
other people, or any metal when threading  
welding wire.  
OM-230 693 Page 3  
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1-4. California Proposition 65 Warnings  
For Gasoline Engines:  
Welding or cutting equipment produces fumes or gases  
which contain chemicals known to the State of California to  
cause birth defects and, in some cases, cancer. (California  
Health & Safety Code Section 25249.5 et seq.)  
Engine exhaust contains chemicals known to the State of  
California to cause cancer, birth defects, or other reproduc-  
tive harm.  
For Diesel Engines:  
Battery posts, terminals and related accessories contain lead  
and lead compounds, chemicals known to the State of  
California to cause cancer and birth defects or other  
reproductiveharm. Wash hands after handling.  
Diesel engine exhaust and some of its constituents are  
known to the State of California to cause cancer, birth  
defects, and other reproductive harm.  
1-5. Principal Safety Standards  
Safety inWelding, Cutting, and Allied Processes, ANSI Standard Z49.1,  
from Global Engineering Documents (phone: 1-877-413-5184, website:  
www.global.ihs.com).  
Ontario, Canada L4W 5NS (phone: 800-463-6727 or in Toronto  
416-747-4044,website: www.csa-international.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 10036–8002 (phone:  
212-642-4900,website: www.ansi.org).  
Standard for Fire Prevention During Welding, Cutting, and Other Hot  
Work, NFPA Standard 51B, from National Fire Protection Association,  
P.O. Box 9101, Quincy, MA 02269-9101 (phone: 617-770-3000, web-  
Recommended Safe Practices for the Preparation for Weldingand Cut-  
ting of Containers and Piping, American Welding Society Standard  
AWS F4.1, from Global Engineering Documents (phone:  
1-877-413-5184,website: www.global.ihs.com).  
NationalElectrical Code, NFPA Standard 70, from National Fire Protec-  
tion Association, P.O. Box 9101, Quincy, MA 02269-9101 (phone:  
OSHA, Occupational Safety and Health Standards for General Indus-  
try, Title 29, Code of Federal Regulations (CFR), Part 1910, Subpart Q,  
and Part 1926, Subpart J, from U.S. Government Printing Office, Super-  
intendentof Documents, P.O. Box 371954, Pittsburgh, PA 15250-7954  
(phone: 1-866-512-1800) (there are 10 Regional Offices—phone for  
Region 5, Chicago, is 312-353-2220, website: www.osha.gov).  
Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,  
from Compressed Gas Association, 4221 Walney Road, 5th Floor,  
Chantilly, VA 20151 (phone: 703-788-2700, website:www.cganet.com).  
Code for Safety in Welding and Cutting, CSA Standard W117.2, from  
CanadianStandards Association, Standards Sales, 5060 Mississauga,  
1-6. EMF Information  
Considerations About Welding And The Effects Of Low Frequency  
Electric And Magnetic Fields  
1. Keep cables close together by twisting or taping them, or using a  
cable cover.  
2. Arrange cables to one side and away from the operator.  
3. Do not coil or drape cables around your body.  
Welding current, as it flows through welding cables, will cause electro-  
magnetic fields. There has been and still is some concern about such  
fields. However, after examining more than 500 studies spanning 17  
years of research, a special blue ribbon committee of the National  
Research Council concluded that: “The body of evidence, in the  
committees judgment, has not demonstrated that exposure to power-  
frequency electric and magnetic fields is a human-health hazard.”  
However, studies are still going forth and evidence continues to be  
examined.Until the final conclusions of the research are reached, you  
may wish to minimize your exposure to electromagnetic fields when  
welding or cutting.  
4. Keep welding power source and cables as far away from opera-  
tor as practical.  
5. Connect work clamp to workpiece as close to the weld as possi-  
ble.  
About Implanted Medical Devices:  
ImplantedMedical 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.  
To reduce magnetic fields in the workplace, use the following  
procedures:  
OM-230 693 Page 4  
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SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION  
fre_som_2007−04  
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Se protéger et protéger les autres contre le risque de blessure — lire et respecter ces consignes.  
2-1. Symboles utilisés  
DANGER! − Indique une situation dangereuse qui si on  
. Indique des instructions spécifiques.  
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.  
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.  
NOTE − Indique des déclarations pas en relation avec des blessures  
personnelles.  
2-2. Dangers relatifs au soudage à l’arc  
(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 d’un poste à souder DC à fil à tension constante est re-  
commandée.En outre, ne pas travailler seul !  
Les symboles représentés ci-dessous sont utilisés dans ce ma-  
nuel 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 instructions  
en matière de sécurité indiquées ci-dessous ne constituent  
qu’un sommaire des instructions de sécurité plus complètes  
fournies dans les normes de sécurité énumérées dans la Sec-  
tion 2-5. Lire et observer toutes les normes de sécurité.  
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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’alimentationselon la norme OSHA 29 CFR 1910.147 (voir nor-  
mes de sécurité).  
Installer le poste correctement et le mettre à la terre convenable-  
ment selon les consignes du manuel de l’opérateur et les normes  
nationales,provinciales et locales.  
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.  
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Seul un personnel qualifié est autorisé à installer, faire fonc-  
tionner, entretenir et réparer cet appareil.  
Pendant le fonctionnement, maintenir à distance toutes les  
personnes,notamment les enfants de l’appareil.  
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En effectuant les raccordements d’entrée, fixer d’abord le conduc-  
teur de mise à la terre approprié et contre-vérifier les connexions.  
UNE DÉCHARGE ÉLECTRIQUE peut  
entraîner la mort.  
Les câbles doivent être exempts d’humidité, d’huile et de graisse;  
protégez−les contre les étincelles et les pièces métalliques  
chaudes.  
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  
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Vérifier fréquemment le cordon d’alimentation afin de s’assurer  
qu’il n’est pas altéré ou à nu, le remplacer immédiatement s’il l’est.  
Un fil à nu peut entraîner la mort.  
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.  
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L’équipement doit être hors tension lorsqu’il n’est pas utilisé.  
Ne pas utiliser des câbles usés, endommagés, de grosseur insuffi-  
sante ou mal épissés.  
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Ne pas enrouler les câbles autour du corps.  
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Ne pas toucher aux pièces électriques sous tension.  
Si la pièce soudée doit être mise à la terre, le faire directement  
avec un câble distinct.  
Porter des gants isolants et des vêtements de protection secs et  
sans trous.  
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Ne pas toucher l’électrode quand on est en contact avec la pièce,  
la terre ou une électrode provenant d’une autre machine.  
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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.  
Ne pas toucher des porte électrodes connectés à deux machines  
en même temps à cause de la présence d’une tension à vide dou-  
blée.  
Ne pas se servir de source électrique à courant électrique dans les  
zones humides, dans les endroits confinés ou là où on risque de  
tomber.  
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N’utiliser qu’un matériel en bon état. Réparer ou remplacer sur-le-  
champ les pièces endommagées. Entretenir l’appareil  
conformémentà ce manuel.  
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Se servir d’une source électrique à courant électrique UNIQUE-  
MENT si le procédé de soudage le demande.  
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Porter un harnais de sécurité si l’on doit travailler au-dessus du sol.  
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.  
S’assurer que tous les panneaux et couvercles sont correctement  
en place.  
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D’autres consignes de sécurité sont nécessaires dans les condi-  
tions suivantes : risques électriques dans un environnement  
humideou si l’on porte des vêtements mouillés ; sur des structures  
métalliquestelles que sols, grilles ou échafaudages ; en position  
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  
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
D
Isoler la pince de masse quand pas mis à la pièce pour éviter le  
contact avec tout objet métallique.  
Ne pas raccorder plus d’une électrode ou plus d’un câble de  
masse à une même borne de sortie de soudage.  
OM-230 693 Page 5  
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Il reste une TENSION DC NON NÉGLIGEABLE dans  
les sources de soudage onduleur quand on a  
coupé l’alimentation.  
LE SOUDAGE peut provoquer un in  
cendie ou une explosion.  
Le soudage effectué sur des conteneurs fermés tels  
que des réservoirs, tambours ou des conduites peu  
provoquer leur éclatement. Des étincelles peuven  
D
Arrêter les convertisseurs, débrancher le courant électrique et  
déchargerles condensateurs d’alimentation selon les instructions  
indiquées dans la partie Entretien avant de toucher les pièces.  
être projetées de l’arc de soudure. La projection d’étincelles, des pièce  
chaudes et des équipements chauds peut provoquer des incendies e  
des brûlures. Le contact accidentel de l’électrode avec des objets  
métalliquespeut provoquer des étincelles, une explosion, un surchauf  
fement ou un incendie. Avant de commencer le soudage, vérifier e  
s’assurer que l’endroit ne présente pas de danger.  
DES PIÈCES CHAUDES peuvent  
provoquer des brûlures graves.  
D
Ne pas toucher à mains nues les parties  
chaudes.  
D
Prévoir une période de refroidissement avant de  
travailler à l’équipement.  
D
Déplacer toutes les substances inflammables à une distance de  
10,7 m de l’arc de soudage. En cas d’impossibilité les recouvrir  
soigneusementavec des protections homologués.  
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.  
D
D
D
Ne pas souder dans un endroit là où des étincelles peuvent tomber  
sur des substances inflammables.  
Se protéger et d’autres personnes de la projection d’étincelles et  
de métal chaud.  
LES FUMÉES ET LES GAZ peuvent être  
dangereux.  
Des étincelles et des matériaux chauds du soudage peuvent  
facilement passer dans d’autres zones en traversant de petites  
fissures et des ouvertures.  
Le soudage génère des fumées et des gaz. Leur  
inhalationpeut être dangereux pour votre santé.  
D
D
D
Surveiller tout déclenchement d’incendie et tenir un extincteur à  
proximité.  
D
D
Eloigner votre tête des fumées. Ne pas respirer les fumées.  
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.  
Le soudage effectué sur un plafond, plancher, paroi ou séparation  
peut déclencher un incendie de l’autre côté.  
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 (voir les nor-  
mes de sécurité).  
D
D
Si la ventilation est médiocre, porter un respirateur anti-vapeurs  
approuvé.  
Lire et comprendre les spécifications de sécurité des matériaux  
(MSDS) et les instructions du fabricant concernant les métaux, les  
consommables, les revêtements, les nettoyants et les dégrais-  
seurs.  
D
D
Ne soudez pas si l’air ambiant est chargé de particules, gaz, ou va-  
peurs inflammables (vapeur d’essence, par exemple).  
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 provo-  
quant des risques d’électrocution, d’étincelles et d’incendie.  
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
D
D
Ne pas utiliser le poste de soudage pour dégeler des conduites ge-  
lées.  
D
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 for-  
mer des gaz hautement toxiques et irritants.  
En cas de non utilisation, enlever la baguette d’électrode du porte-  
électrode ou couper le fil à la pointe de contact.  
Porter des vêtements de protection dépourvus d’huile tels que des  
gants en cuir, une chemise en matériau lourd, des pantalons sans  
revers, des chaussures hautes et un couvre chef.  
Ne pas souder des métaux munis d’un revêtement, tels que l’acier  
galvanisé, plaqué en plomb ou au cadmium à moins que le revête-  
ment 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  
revêtementset tous les métaux renfermant ces éléments peuvent  
dégager des fumées toxiques en cas de soudage.  
D
D
D
D
D
D
Avant de souder, retirer toute substance combustible de vos po-  
ches telles qu’un allumeur au butane ou des allumettes.  
Une fois le travail achevé, assurez−vous qu’il ne reste aucune  
trace d’étincelles incandescentes ni de flammes.  
Utiliser exclusivement des fusibles ou coupe−circuits appropriés.  
Ne pas augmenter leur puissance; ne pas les ponter.  
LES RAYONS DE L’ARC peuvent pro  
voquer des brûlures dans les yeux e  
sur la peau.  
Une fois le travail achevé, assurez−vous qu’il ne reste aucune  
trace d’étincelles incandescentes ni de flammes.  
Le rayonnement de l’arc du procédé de soudage  
génère des rayons visibles et invisibles intenses  
Utiliser exclusivement des fusibles ou coupe−circuits appropriés.  
Ne pas augmenter leur puissance; ne pas les ponter.  
(ultraviolets et infrarouges) susceptibles de provoquer des brûlures  
dans les yeux et sur la peau. Des étincelles sont projetées pendant le  
soudage.  
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
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).  
DES PIECES DE METAL ou DES SA-  
LETES peuvent provoquer des bles-  
sures dans les yeux.  
D
D
Porter des lunettes de sécurité avec écrans latéraux même sous  
votre casque.  
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
Le soudage, l’écaillement, le passage de la pièce à la brosse en  
fil de fer, et le meulage génèrent des étincelles et des particules  
métalliquesvolantes. Pendant la période de refroidissement des  
soudures, elles risquent de projeter du laitier.  
D
Porter des vêtements confectionnés avec des matières résistan-  
tes et ignifuges (cuir, coton lourd ou laine) et des bottes de  
protection.  
D
Porter des lunettes de sécurité avec écrans latéraux ou un écran  
facial.  
OM-230 693 Page 6  
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D
D
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.  
LES ACCUMULATIONS DE GAZ  
risquent de provoquer des blessures  
ou même la mort.  
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
Fermer l’alimentation du gaz protecteur en cas  
de non-utilisation.  
D
Veiller toujours à bien aérer les espaces confi-  
nés ou se servir d’un respirateur d’adduction  
d’air homologué.  
Tenir les bouteilles éloignées des circuits de soudage ou autres  
circuits électriques.  
LES CHAMPS MAGNETIQUES peuv-  
ent affecter des implants médicaux.  
D
D
Ne jamais placer une torche de soudage sur une bouteille à gaz.  
D
Porteur de simulateur cardiaque ou autre im-  
plants médicaux, rester à distance.  
Une électrode de soudage ne doit jamais entrer en contact avec  
une bouteille.  
D
Les porteurs d’implants doivent d’abord consulter leur médecin  
avant de s’approcher des opérations de soudage à l’arc, de sou-  
dage par points, de gougeage, du coupage plasma ou de chauf-  
fage par induction.  
D
D
Ne jamais souder une bouteille pressurisée − risque d’explosion.  
Utiliser seulement des bouteilles de gaz protecteur, régulateurs,  
tuyaux et raccords convenables pour cette application spécifique ;  
les maintenir ainsi que les éléments associés en bon état.  
LE BRUIT peut endommager l’ouïe.  
Le bruit des processus et des équipements peut  
affecter l’ouïe.  
D
D
D
D
Détourner votre visage du détendeur-régulateur lorsque vous  
ouvrez la soupape de la bouteille.  
D
Porter des protections approuvées pour les  
oreilles si le niveau sonore est trop élevé.  
Le couvercle du détendeur doit toujours être en place, sauf lorsque  
la bouteille est utilisée ou qu’elle est reliée pour usage ultérieur.  
LES BOUTEILLES peuvent exploser  
si elles sont endommagées.  
Utiliser les équipements corrects, les bonnes procédures et suffi-  
samment de personnes pour soulever et déplacer les bouteilles.  
Des bouteilles de gaz protecteur contiennent du gaz  
sous haute pression. Si une bouteille est endomma-  
gée, elle peut exploser. Du fait que les bouteilles de  
gaz font normalement partie du procédé de sou-  
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 sécu-  
rité.  
dage, les manipuler avec précaution.  
2-3. Dangers supplémentaires en relation avec l’installation, le fonctionnement et la maintenance  
Risque D’INCENDIE OU D’EXPLO-  
SION.  
LES ÉTINCELLES VOLANTES ris-  
quent de provoquer des blessures.  
D
Ne pas placer l’appareil sur, au-dessus ou  
à proximité de surfaces inflammables.  
D
Porter un écran facial pour protéger le visage et  
les yeux.  
D
Ne pas installer l’appareil à proximité de pro-  
duits inflammables.  
D
Affûter l’électrode au tungstène uniquement à la  
meuleuse dotée de protecteurs. Cette manœuv-  
re est à exécuter dans un endroit sûr lorsque l’on  
porte l’équipement homologué de protection du  
visage, des mains et du corps.  
D
Ne pas surcharger l’installation électrique − s’assurer que  
l’alimentationest correctement dimensionnée et protégée avant  
de mettre l’appareil en service.  
D
Les étincelles risquent de causer un incendie − éloigner toute sub-  
stance inflammable.  
LA CHUTE DE L’APPAREIL peut  
blesser.  
D
Utiliser l’anneau de levage uniquement pour  
soulever l’appareil, NON PAS les chariots, les  
bouteilles de gaz ou tout autre accessoire.  
LES CHARGES ÉLECTROSTATI-  
QUES peuvent endommager les  
circuits imprimés.  
D
Utiliser un équipement de levage de capacité  
suffisante pour lever l’appareil.  
D
Établir la connexion avec la barrette de terre  
avant de manipuler des cartes ou des pièces.  
D
En utilisant des fourches de levage pour déplacer l’unité, s’assu-  
rer que les fourches sont suffisamment longues pour dépasser  
du côté opposé de l’appareil.  
D
Utiliser des pochettes et des boîtes antistati-  
ques pour stocker, déplacer ou expédier des  
cartes de circuits imprimes.  
L’EMPLOI EXCESSIF peut SUR-  
CHAUFFER L’ÉQUIPEMENT.  
DES ORGANES MOBILES peuvent  
provoquer des blessures.  
D
Prévoir une période de refroidissement ; re-  
specter le cycle opératoire nominal.  
D
D
Ne pas s’approcher des organes mobiles.  
D
Réduire le courant ou le facteur de marche  
avant de poursuivre le soudage.  
Ne pas s’approcher des points de coincement  
tels que des rouleaux de commande.  
D
Ne pas obstruer les passages d’air du poste.  
OM-230 693 Page 7  
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LES FILS DE SOUDAGE peuvent  
provoquer des blessures.  
LE RAYONNEMENT HAUTE FRÉ-  
QUENCE (H.F.) risque de provoquer  
des interférences.  
D
Ne pas appuyer sur la gâchette avant d’en  
avoir reçu l’instruction.  
D
Le rayonnement haute fréquence (H.F.) peut  
provoquer des interférences avec les équipe-  
ments de radio−navigation et de communica-  
tion, les services de sécurité et les ordinateurs.  
D
Ne pas diriger le pistolet vers soi, d’autres per-  
sonnes ou toute pièce mécanique en enga-  
geant le fil de soudage.  
D
Demander seulement à des personnes qualifiées familiarisées  
avec des équipements électroniques de faire fonctionner l’installa-  
tion.  
DES ORGANES MOBILES peuvent  
provoquer des blessures.  
D
D
L’utilisateur est tenu de faire corriger rapidement par un électricien  
qualifié les interférences résultant de l’installation.  
Si le FCC signale des interférences, arrêter immédiatement l’ap-  
pareil.  
D
S’abstenirde toucher des organes mobiles tels  
que des ventilateurs.  
D
Maintenirfermés et verrouillés les portes, pan-  
neaux, recouvrements et dispositifs de protec-  
tion.  
LE SOUDAGE À L’ARC risque de  
provoquer des interférences.  
D
D
Seules des personnes qualifiées sont autorisées à enlever les  
portes, panneaux, recouvrements ou dispositifs de protection  
pour l’entretien.  
D
L’énergie électromagnétique risque de provo-  
quer des interférences pour l’équipement élec-  
tronique sensible tel que les ordinateurs et l’é-  
quipement commandé par ordinateur tel que  
les robots.  
Remettreles portes, panneaux, recouvrements ou dispositifs de  
protection quand l’entretien est terminé et avant de rebrancher  
l’alimentation électrique.  
D
Veiller à ce que tout l’équipement de la zone de soudage soit  
compatibleélectromagnétiquement.  
D
Pour réduire la possibilité d’interférence, maintenir les câbles de  
soudage aussi courts que possible, les grouper, et les poser  
aussi bas que possible (ex. par terre).  
LIRE LES INSTRUCTIONS.  
D
Lisez le manuel d’instructions avant l’utilisation  
ou la maintenance de l’appareil.  
D
D
D
Veiller à souder à une distance de 100 mètres de tout équipe-  
ment électronique sensible.  
D
N’utiliser que les pièces de rechange recom-  
mandées par le constructeur.  
Veiller à ce que ce poste de soudage soit posé et mis à la terre  
conformément à ce mode d’emploi.  
D
Effectuer régulièrement le contrôle et l’entretien de l’installation.  
En cas d’interférences après avoir pris les mesures précéden-  
tes, il incombe à l’utilisateur de prendre des mesures supplé-  
mentairestelles que le déplacement du poste, l’utilisation de câ-  
bles blindés, l’utilisation de filtres de ligne ou la pose de protec-  
teurs dans la zone de travail.  
D
Maintenir soigneusement fermés les portes et les panneaux des  
sources de haute fréquence, maintenir les éclateurs à une distan-  
ce correcte et utiliser une terre et un blindage pour réduire les  
interférences éventuelles.  
2-4. Proposition californienne 65 Avertissements  
Pour les moteurs à essence :  
Les équipements de soudage et de coupage produisent des  
fumées et des gaz qui contiennent des produits chimiques  
dont l’État de Californie reconnaît qu’ils provoquent des mal-  
formations congénitales et, dans certains cas, des cancers.  
(Code de santé et de sécurité de Californie, chapitre 25249.5  
et suivants)  
Les gaz d’échappement des moteurs contiennent des pro-  
duits chimiques dont l’État de Californie reconnaît qu’ils  
provoquent des cancers et des malformations congénitales  
ou autres problèmes de procréation.  
Pour les moteurs diesel :  
Les batteries, les bornes et autres accessoires contiennent  
du plomb et des composés à base de plomb, produits chimi-  
ques dont l’État de Californie reconnaît qu’ils provoquent des  
cancers et des malformations congénitales ou autres  
problèmesde procréation. Se laver les mains après manipu-  
lation.  
Les gaz d’échappement des moteurs diesel et certains de  
leurs composants sont reconnus par l’État de Californie com-  
me provoquant des cancers et des malformations  
congénitalesou autres problèmes de procréation.  
OM-230 693 Page 8  
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2-5. Principales normes de sécurité  
Safety inWelding, Cutting, and Allied Processes, ANSI Standard Z49.1,  
de Global Engineering Documents (téléphone : 1-877-413-5184, site  
Internet : www.global.ihs.com).  
L4W 5NS (téléphone : 800-463-6727 ou à Toronto 416-747-4044, site  
Internet : www.csa-international.org).  
Safe Practice For Occupational And Educational Eye And Face Protec-  
tion, ANSI Standard Z87.1, de American National Standards Institute,  
11 West 43rd Street, New York, NY 10036-8002 (téléphone :  
212-642-4900,site Internet : www.ansi.org).  
RecommendedSafe Practices for the Preparation for Welding and Cut-  
ting of Containers and Piping, American Welding Society Standard  
AWS F4.1 de Global Engineering Documents (téléphone  
1-877-413-5184,site Internet : www.global.ihs.com).  
:
Standard for Fire Prevention During Welding, Cutting, and Other Hot  
Work, NFPA Standard 51B, de National Fire Protection Association,  
P.O. Box 9101, Quincy, MA 02269-9101 (téléphone : 617-770-3000,  
site Internet : www.nfpa.org).  
National Electrical Code, NFPA Standard 70, de National Fire Protec-  
tion Association, P.O. Box 9101, Quincy, MA 02269-9101 (téléphone :  
617-770-3000, site Internet : www.nfpa.org).  
OSHA, Occupational Safety and Health Standards for General Indus-  
try, Title 29, Code of Federal Regulations (CFR), Part 1910, Subpart Q,  
and Part 1926, Subpart J, de U.S. Government Printing Office, Superin-  
tendent of Documents, P.O. Box 371954, Pittsburgh, PA 15250-7954  
(téléphone: 1-866-512-1800) (il y a 10 bureaux régionaux−−le télépho-  
ne de la région 5, Chicago, est 312-353-2220, site Internet :  
www.osha.gov).  
Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,  
de Compressed Gas Association, 4221 Walney Road, 5th Floor, Chan-  
tilly, VA 20151 (téléphone  
www.cganet.com).  
:
703-788-2700, site Internet  
:
Code for Safety in Welding and Cutting, CSA Standard W117.2, de  
CanadianStandards Association, 5060 Mississauga, Ontario, Canada  
2-6. Information EMF  
Considérationssur le soudage et les effets de basse fréquence et des  
champs magnétiques et électriques.  
1. Garder les câbles ensemble, les torsader, les scotcher, ou les  
recouvrir d’une housse.  
2. Disposer les câbles d’un côté et à distance de l’opérateur.  
3. Ne pas courber pas et ne pas entourer pas les câbles autour de  
votre corps.  
4. Garder le poste de soudage et les câbles le plus loin possible de  
vous.  
Le courant de soudage, pendant son passage dans les câbles de sou-  
dage, causera des champs électromagnétiques. Il y a eu et il y a encore  
un certain souci à propos de tels champs. Cependant, après avoir exa-  
miné plus de 500 études qui ont été faites pendant une période de  
recherche de 17 ans, un comité spécial ruban bleu du National  
Research Council a conclu : « L’accumulation de preuves, suivant le  
jugement du comité, n’a pas démontré que l’exposition aux champs  
magnétiqueset champs électriques à haute fréquence représente un  
risque à la santé humaine ». Toutefois, des études sont toujours en  
cours et les preuves continuent à être examinées. En attendant que les  
conclusions finales de la recherche soient établies, il vous serait  
souhaitablede réduire votre exposition aux champs électromagnéti-  
ques pendant le soudage ou le coupage.  
5. Connecter la pince sur la pièce aussi près que possible de la  
soudure.  
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 induc-  
tion. Si le médecin approuve, il est recommandé de suivre les  
procédures précédentes.  
Pour réduire les champs magnétiques sur le poste de travail, appliquer  
les procédures suivantes :  
OM-230 693 Page 9  
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OM-230 693 Page 10  
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SECTION 3 − DEFINITIONS  
3-1. Symbols And Definitions  
Do Not Switch  
While Welding  
Wire Feed  
Output  
Duty Cycle  
On  
X
Volts  
Increase  
Off  
V
Gas Metal Arc  
Welding (GMAW)  
Gun  
Wire Feed Spool  
Gun  
Gas Input  
Gas Output  
Rated No-Load  
Voltage (Average)  
Voltage Input  
Press To Reset  
U0  
SECTION 4 − INSTALLATION  
4-1. Specifications  
Amps Input at Rated Output (60% Duty Cycle), 60 Hz, Single-Phase  
Rated Output  
Max. OpenCircuit  
Voltage  
200 (208) V  
230 V  
460 V  
575 V  
KVA  
KW  
250 A at 28 VDC,  
40% Duty Cycle  
200 A at 28 VDC,  
60% Duty Cycle  
38  
48  
2.3*  
42  
2*  
21  
1*  
17  
0.8*  
9.8  
0.46*  
7.5  
0.13*  
Wire Type and Diameter  
Stainless Steel  
Wire Feed Speed  
Dimensions  
Net Weight Without Gun  
Solid Steel  
Flux Cored  
50−700 IPM  
(1.3−17.8 m/min)  
H: 30 in (762 mm)  
W: 19 in (483 mm)  
D: 40 in (1016 mm)  
205 lb  
(93 kg)  
.023 − .045 in  
(0.6 − 1.2 mm)  
.023 − .045 in  
(0.6 − 1.2 mm)  
.030 − .045 in  
(0.8 − 1.2 mm)  
* While idling  
Operating Temperature Range − −20C to +40C  
Storage Temperature Range − -30C to + 50C  
OM-230 693 Page 11  
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4-2. Welding Power Source Duty Cycle And Overheating  
Duty Cycle is percentage of 10  
minutes that unit can weld at rated  
load without overheating.  
500  
450  
400  
350  
300  
If unit overheats, Thermistor (T)  
opens, output stops, and cooling  
fan runs. Wait fifteen minutes for  
unit to cool. Reduce amperage or  
voltage, or duty cycle before  
welding.  
250  
200  
NOTICE − Exceeding duty cycle  
can damage unit and void warranty.  
150  
100  
50  
10  
20  
30  
40  
50 60 70 80 90 100  
% DUTY CYCLE  
60% Duty Cycle At 200 Amperes  
40% Duty Cycle At 250 Amperes  
6 Minutes Welding  
4 Minutes Resting  
4 Minutes Welding  
6 Minutes Resting  
Overheating  
A or V  
0
15  
OR  
Reduce Duty Cycle  
Minutes  
duty1 4/95 − 150 215-A  
4-3. Volt-Ampere Curves  
1
1
Normal Volt-Ampere Curves  
35  
30  
25  
20  
15  
10  
5
The volt-ampere curves show the  
normal minimum and maximum  
voltage and amperage output  
capabilities of the welding power  
source. Curves of other settings fall  
between the curves shown.  
0
0
100  
200  
300  
400  
AMPERES  
ssb1.1 10/91 − 196 844 / S-0700  
OM-230 693 Page 12  
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4-4. Connecting To Weld Output Terminals  
4
1
Do not place  
anything between  
weld cable terminal  
and copper bar.  
2
3
Tools Needed:  
3/4 in (19 mm)  
803 778-A  
Correct Installation  
Incorrect Installation  
1
2
3
4
Weld Output Terminal  
output terminal and secure with nut so that  
weld cable terminal is tight against copper  
bar. Do not place anything between weld  
cable terminal and copper bar. Make  
sure that the surfaces of the weld cable  
terminal and copper bar are clean.  
Turn off power before connecting to  
weld output terminals.  
Supplied Weld Output Terminal Nut  
Weld Cable Terminal  
Copper Bar  
Failure to properly connect weld  
cables may cause excessive heat  
and start a fire, or damage your ma-  
chine.  
Remove supplied nut from weld output ter-  
minal. Slide weld cable terminal onto weld  
4-5. Installing Work Cable And Clamp  
1
2
Work Cable  
Boot  
Route cable through front panel  
opening. Slide boot onto work  
cable.  
3
Negative (−) Output Terminal  
Connect cable to terminal and  
cover connection with boot.  
Close door.  
1
2
3
Tools Needed:  
3/4 in  
804 909-A  
OM-230 693 Page 13  
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4-6. Connecting Spoolmatic) 15A Or 30A Gun  
1
Gun Trigger Plug  
Insert plug into receptacle, and  
tighten threaded collar.  
2
3
Weld Cable  
Shielding Gas Hose  
Route weld cable through opening  
in front panel.  
Route gas hose along side panel.  
4
Positive Weld Output Terminal  
Connect weld cable to weld output  
terminal.  
5
Regulator/Flowmeter  
Route shielding gas hose up to  
regulator/flowmeter. Connect gas  
hose to fitting on regulator/flowme-  
ter.  
2
. Two welding guns may be  
connected to the welding  
power source at the same time,  
but only one welding gun may  
be in use at any one time. If the  
triggers of both welding guns  
are pulled at the same time, the  
weld output and wirefeed motor  
are disabled.  
3
1
5
3
4
Tools Needed:  
3/4, 5/8 in  
804 910-A  
OM-230 693 Page 14  
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4-7. Connecting XR Aluma-Pro, XR Edge, XR-A Gun, Or XR-A Python  
. XR Edge guns prior to serial no.  
LE079101 require an adapter  
cord (part no. 195 498).  
1
2
3
Gun End  
Gun Liner  
Wire Outlet Guide  
Trim excess liner from end of gun  
so no more than 3/32 in (2.4 mm) of  
liner extends past wire outlet guide.  
4
Gun Securing Knob  
Loosen securing knob. Insert gun  
end through opening until it bottoms  
against drive assembly (make sure  
gun end does not touch drive rolls).  
Tighten knob.  
3/32 in  
(2.4 mm)  
Be sure to change drive rolls to the  
proper size and type.  
4
5
Gun Trigger Plug  
Insert plug into receptacle, and  
tighten threaded collar.  
3
2
. If Aluma-Pro push/pull gun has  
a listed SUP value, set the  
power source to match the  
. Be sure to trim liner to proper extension.  
1
5
Ref. 804 910-A / 804 936-A  
OM-230 693 Page 15  
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4-8. Setting Gun Polarity For Wire Type  
1
Polarity Changeover Label  
Information  
Changing Polarity  
Always read and follow manufacture’s  
recommendedpolarity.  
Wire Drive  
Assembly Lead  
Work Clamp Lead  
1
D
D
+
-
Positive Terminal  
Negative Terminal  
Shown as shipped Electrode Positive (DCEP): For solid steel,  
stainless steel, aluminum, or flux core with gas wires (GMAW).  
Electrode Negative (DCEN): Reverse lead connections at  
terminals from that shown above for gasless flux core wires  
(FCAW). Drive assembly becomes negative.  
3/4, 11/16 in  
Ref. 190 821-A  
4-9. Installing Gas Supply  
Obtain gas cylinder and chain to  
running gear, wall, or other  
stationary support so cylinder  
cannot fall and break off valve.  
1
2
Tools Needed:  
1-1/8, 5/8 in  
1
2
Cap  
Cylinder Valve  
Remove cap, stand to side of  
valve, and open valve slightly. Gas  
flow blows dust and dirt from valve.  
Close valve.  
3
4
7
Argon Gas Or Mixed Gas  
1
3
4
Cylinder  
Regulator/Flowmeter  
Install so face is vertical.  
5
Regulator/Flowmeter Gas  
Hose Connection  
5
2
6
Welding Power Source Gas  
Hose Connection  
Connect customer supplied gas  
hose between regulator/flowmeter  
gas hose connection, and fitting on  
rear of welding power source.  
3
8
9
7
Flow Adjust  
CO Gas  
2
Typical flow rate is 20 cfh (cubic  
feet per hour). Check wire  
manufacturer’s  
recommended  
flow rate.  
8
9
CO2 Adapter (Customer  
Supplied)  
O-Ring (Customer Supplied)  
6
Install adapter with O-ring between  
regulator/flowmeterand CO cyl-  
2
inder.  
Rear Panel  
Ref. 804 654-A / Ref. 804 912-A  
OM-230 693 Page 16  
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4-10. Installing Wire Spool And Adjusting Hub Tension  
Use compression spring  
with 8 in (200 mm) spools.  
When a slight force is needed  
to turn spool, tension is set.  
To install either a 1 lb or 2 lb wire  
spool, follow the procedure as  
shown in the illustration.  
Installing 1 Or 2 lb Wire Spool  
Spindle  
Install these  
components  
onto spindle.  
Spindle  
Order extra spring  
Part No. 186 437  
Remove these  
components  
from spindle.  
Tools Needed:  
15/16 in  
072573-B / 802 922  
4-11. Positioning Jumper Links  
Check input voltage available at  
site.  
Tools Needed:  
1
Jumper Links Access Door  
3/8 in  
Open door.  
2
Jumper Link Label  
230ꢀVOLTS 460ꢀVOLTS 575ꢀVOLTS  
Check label − only one is on unit.  
200ꢀVOLTS 230ꢀVOLTS  
3
Input Voltage Jumper Links  
Move jumper links to match input  
voltage.  
3
144ꢀ916−E  
153ꢀ980−D  
Close and secure access door.  
2
1
153 980-D / 144 916-E / 804 911-A  
OM-230 693 Page 17  
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4-12. Electrical Service Guide  
Failure to follow these electrical service guide recommendations could create an electric shock or fire hazard. These recommenda-  
tions are for a dedicated branch circuit sized for the rated output and duty cycle of the welding power source.  
Input Voltage  
200  
48  
230  
42  
460  
21  
575  
17  
Input Amperes At Rated Output  
Max Recommended Standard Fuse Or Circuit Breaker Rating In Amperes  
1
2
3
60  
70  
8
50  
60  
8
25  
30  
12  
20  
25  
14  
Circuit Breaker , Time-Delay  
Normal Operating  
4
Min Input Conductor Size In AWG  
96  
(29)  
127  
(39)  
206  
(63)  
209  
(64)  
Max Recommended Input Conductor Length In Feet (Meters)  
4
Min Grounding Conductor Size In AWG  
8
10  
12  
14  
Reference: 2005 National Electrical Code (NEC) (including article 630)  
1 Choose a circuit breaker with time-current curves comparable to a Time Delay Fuse.  
2 “Time-Delay” fuses are UL class “RK5” .  
3 “Normal Operating” (general purpose − no intentional delay) fuses are UL class “K5” (up to and including 60 amp), and UL class “H” ( 65 amp and  
above).  
4 Conductor data in this section specifies conductor size (excluding flexible cord or cable) between the panelboard and the equipment per NEC Table  
310.16. If a flexible cord or cable is used, minimum conductor size may increase. See NEC Table 400.5(A) for flexible cord and cable requirements.  
OM-230 693 Page 18  
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4-13. Selecting A Location And Connecting Input Power  
1
8
=GND/PE Earth Ground  
18 in (457 mm) of  
space for airflow  
10  
7
9
L1  
L2  
5
6
Do not move or operate  
unit where it could tip.  
2
4
1
3
L2  
L1  
230 VAC, 1  
804 912-A  
2
3
Plug (NEMA Type 6-50P)  
9
Disconnect Device Line Terminals  
Installation must meet all National  
and Local Codes − have only qualified  
persons make this installation.  
Connect green or green/yellow grounding  
conductor to disconnect device grounding  
terminal first.  
Receptacle  
[NEMA Type 6-50R (Customer  
Supplied)]  
Disconnect and lockout/tagout input  
power before connecting input con-  
ductors from unit.  
4
Input Power Cord.  
Connect input conductors L1 and L2 to  
disconnect device line terminals.  
Connect directly to line disconnect device if  
hard wiring is required.  
Always connect green or green/yel-  
low conductor to supply grounding  
terminal first, and never to a line ter-  
minal.  
10 Over-Current Protection  
Select type and size of over-current  
protection using Section 4-12 (fused  
disconnect switch shown).  
5
6
7
8
Black And White Input Conductor (L1  
And L2)  
Special installation may be required  
where gasoline or volatile liquids are  
present − see NEC Article 511 or CEC  
Section 20.  
Green Or Green/Yellow Grounding  
Conductor  
Connect plug to receptacle if hard wiring  
method is not used.  
Disconnect Device (switch shown in  
the OFF position)  
Close and secure door on disconnect device.  
Remove lockout/tagout device, and place  
switch in the On position.  
1
Rating Label  
Supply correct input power.  
Disconnect Device Grounding Terminal  
OM-230 693 Page 19  
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4-14. Threading Welding Wire  
1
2
3
4
5
6
7
Wire Spool  
Welding Wire  
Inlet Wire Guide  
Pressure Adjustment Knob  
Drive Roll  
4
Outlet Wire Guide  
Gun Conduit Cable  
Lay gun cable out straight.  
7
Tools Needed:  
1
2
3
6
5
. Hold wire tightly to keep it  
from unraveling.  
6 in  
(150 mm)  
Open pressure assembly.  
Pull and hold wire; cut off end.  
Push wire thru guides into gun;  
continue to hold wire.  
. Use pressure indicator  
scale to set a desired  
drive roll pressure.  
Tighten  
Pressure  
Indicator  
Scale  
1
2
3
4
Close and tighten pressure  
assembly, and let go of wire.  
Remove gun nozzle and contact tip.  
Turn On.  
Tighten  
1
2
3
4
WOOD  
Press gun trigger until wire  
comes out of gun. Reinstall  
contact tip and nozzle  
Feed wire to check drive roll pressure.  
Tighten knob enough to prevent slipping.  
Cut off wire. Close  
and latch door.  
Ref. 804 913-A  
OM-230 693 Page 20  
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Notes  
OM-230 693 Page 21  
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4-15. Weld Parameters  
OM-230 693 Page 22  
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226 650-B  
OM-230 693 Page 23  
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SECTION 5 − OPERATION  
5-1. Controls  
1
Voltage Control  
Turn control clockwise to increase  
voltage.  
2
Wire Speed Control  
Turn control clockwise to increase wire  
feed speed.  
3
4
Voltmeter  
Wire Feed Speed Meter  
4
3
1
2
. This unit has three automatic timers included in its operation to help save contact  
tips, gas, and wire:  
Tip Saver − Weld output shuts off if tip is shorted to work surface.  
Safety shut-off − Weld output will shut off if no arc is detected within 3 seconds after  
gun trigger is depressed.  
Jog mode − When loading a new roll of wire or if the gun trigger is accidentally  
pressed, gas will shut off after 1 minute and wire will shut off after 2 minutes saving  
wire and gas.  
226 647-B  
OM-230 693 Page 24  
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JOG Mode  
which is recommended for most wire sizes  
and types.  
trigger and pull the trigger again  
momentarily(one second).  
If the trigger on either gun is held for more  
than 3 seconds without striking an arc, the  
unit will automatically shut off weld power  
(and shielding gas output on MIG gun  
only), but will feed wire continuously at the  
preset wire feed speed (which may be  
faster or slower than Run−in Speed) until  
trigger is released.  
To change Run−in settings, start with the  
power switch OFF. Press and hold the MIG  
or Spool Gun Trigger while turning the  
power switch ON. The unit will power up  
Spool Gun Run−in is factory set at 50%  
which is recommended for .030 & .035  
wire.  
A
Run−in setting of 25% is  
recommendedfor .047 wire.  
with both the displays reading 888 , then  
the voltage display will read run and the  
wire feed display will read the preset Run−  
in percentage from memory for the gun se-  
lected. To change the Run−in value, re-  
lease the trigger and turn the wire feed con-  
trol knob (or the wire feed adjustment knob  
located on the bottom handle of the spool  
gun) to the desired setting for the selected  
gun. To return to weld mode after the Run−  
in speed change, pull the trigger momen-  
tarily (one second).  
To check Run−in settings, start with the  
power switch OFF. Press and hold the MIG  
or Spool Gun Trigger while turning the  
power switch ON. The unit will power up  
with both the displays reading 888 , then  
the voltage display will read run and the  
wire feed display will read the preset  
Run−in percentage from memory for the  
gun selected. To return to the weld mode  
without making a change, simply release  
Run−in Wire Feed Speed Settings  
Run−in settings for the MIG and Spool  
Guns are independently set and stored in  
unit memory. The settings are in percent of  
the welding wire feed speed preset. Both  
settings are adjustable from 25 to 150  
percent.  
MIG Gun Run−in is factory set at 100%  
OM-230 693 Page 25  
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5-2. Voltmeter And Wire Feed Speed Meter Operation  
1
2
1
2
Voltmeter  
Welding Status  
Gun Selection  
When either a MIG gun or spool gun trigger  
is pressed and a welding arc is established,  
the voltmeter displays actual weld voltage.  
When the gun trigger is released and  
welding arc extinguished, the voltmeter  
displays the last actual voltage for 5  
seconds and then returns to preset voltage.  
If welding resumes before unit displays  
preset voltage, actual welding voltage will  
appear on the voltmeter.  
Wire Feed Speed Meter  
The wire feed speed meter will display  
preset wire feed speed (IPM) for the  
appropriate gun selection either MIG,  
Spool or Push/Pull gun. To preset desired  
wire feed speed, connect desired gun,  
press gun trigger for one second, and  
release trigger. The meter preset will be  
retainedby the meter board until a different  
gun is connected and preset is performed  
or the unit is turned off and back on. The  
settings for the last active gun used will be  
the default at initial power up of the unit.  
Power Up Status  
Both meters display 888 at unit power up.  
After 0.5 seconds, preset values appear on  
both meters. The settings for the last active  
gun used will be the default at initial power  
up of the unit. If the power is reset to quickly,  
characters other than 888 may appear. To  
reset, turn power off for at least 3 seconds,  
then turn power back on.  
The wire feed speed meter always displays  
preset wire feed speed (IPM).  
5-3. Jog Mode  
If the trigger on either gun is held for more than 3 seconds without striking an arc, the unit will automatically shut off  
weld power (and shielding gas output on MIG or push/pull gun), but will feed wire continuously at the preset wire feed  
speed (which may be faster or slower than Run−in Speed) until trigger is released. Jog wire feed speed is the same as  
weld wire feed speed, so any time jog speed is changed, be sure to change back to weld wire feed speed before weld-  
ing. Jog wire feed speed for the spool gun and push/pull gun is limited to 300 ipm (7.6 m/min).  
OM-230 693 Page 26  
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5-4. Timers  
4
3
1
2
1
2
3
4
Voltage Control  
Wire Speed Control  
Voltmeter  
Run-in speed (run) − The speed of the wire  
prior to the welding arc being struck. The  
range is from 25 to 150% of wire feed  
speed(WFS).  
gized after the wire feeding has stopped.  
The range is from 0.01 to 0.25 seconds.  
Spot Timer (SPO) − The amount of time  
that the arc will be active before it shuts off  
automatically. The range is from 0 to 120  
seconds. Spot timer is reset upon release  
of welding gun trigger.  
Wire Feed Speed Meter  
Preflow (PrE) − The amount of time that  
the shielding gas will flow after the trigger  
is depressed and before the welding arc  
will be allowed to be active. The range is  
from 0.0 to 5.0 seconds.  
To enter the TIMERS menu press and hold  
the gun trigger while turning on the power  
switch until the left meter displays (run),  
then release trigger.  
“Stitch” Timer (dLY) − Used in conjunc-  
tion with the Spot timer and while the trigger  
is continuously depressed. Controls the  
amount of time that the arc will be inactive  
after the Spot timer times out. The range is  
from 0 to 120 seconds.  
Once in the TIMERS menu, rotate the left  
knob clockwise (CW) to find the particular  
item, and rotate the right knob to change  
the setting.  
Postflow (POS) − The amount of time that  
the shielding gas will flow after the arc has  
been shut off. The range is from 0.0 to 10.0  
seconds.  
The following items can be adjusted by ro-  
tating the left knob clockwise (CW):  
Burnback (Bur) − The amount of time that  
the welding wire remains electrically ener-  
To save settings and exit the TIMERS  
menu, depress the gun trigger.  
OM-230 693 Page 27  
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. Welding wire birdnesting at the welding power source drive rolls may occur if this value is set too high.  
5-5. Set Up Push Motor Torque (SUP) Or Reset (rES)  
4
3
1
2
1
2
3
4
Voltage Control  
Wire Speed Control  
Voltmeter  
The following items can be adjusted by  
rotating the left knob counterclockwise  
(CCW):  
over-torquelimit and speed up the remote  
wire feed speed motor.  
. If Aluma-Pro push/pull gun has a listed  
SUP value, set the power source to  
match the SUP value.  
Set up Push Motor Torque (SUP) − This  
feature is only active when a push/pull gun  
is connected to the welding power source.  
The (SUP) setting will adjust the  
over-torque limit of the push motor inside  
the welding power source. The range is  
0-250 and the default value is 130.  
Increasing this setting will increase the  
Wire Feed Speed Meter  
Depress the gun trigger while turning on  
the power switch until the left meter  
displays (run).  
To save settings and exit the (SUP) menu,  
depress the gun trigger.  
Rotate the left knob counterclockwise  
(CCW) to find the particular item, and rotate  
the right knob to change the setting.  
Reset (rES) − Rotate the right knob to  
select ON. Press and release gun trigger to  
reset system to factory default values.  
OM-230 693 Page 28  
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SECTION 6 − MAINTENANCE &TROUBLESHOOTING  
6-1. Routine Maintenance  
. Maintain more often  
Disconnect power  
before maintaining.  
during severe conditions.  
n = Check  
Z = Change  
~ = Clean  
l = Replace  
Reference  
* To be done by Factory Authorized Service Agent  
Every  
3
Months  
l Unreadable Labels  
~ Weld Terminals  
nl Weld Cables  
Every  
6
Months  
OR  
~ Inside Unit  
n Apply Light Coat Of Oil  
Or Grease To Drive Motor  
Shaft  
6-2. Unit Overload  
Thermistor T in SCR1 protects the unit from damage due to overheating. If HL.P 002 is displayed on the meters, wait  
for unit to cool allowing fan motor to run before trying to weld. If unit is cool and no weld output continues, contact  
Factory Authorized Service Agent.  
6-3. Changing Drive Roll and Wire Inlet Guide  
1
2
Securing Screw  
Inlet Wire Guide  
2
Loosen screw. Slide tip as close to  
drive rolls as possible without  
touching. Tighten screw.  
4
3
Drive Roll  
The drive roll consists of two  
different sized grooves. The  
stamped markings on the end  
surface of the drive roll refers to the  
groove on the opposite side of the  
drive roll. The groove closest to the  
motor shaft is the proper groove to  
thread (see Section 4-14).  
1
4
Drive Roll Securing Nut  
Turn nut one click to secure drive  
roll.  
3
Tools Needed:  
7/16 in  
Ref. 804 914-A  
OM-230 693 Page 29  
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6-4. Aligning Drive Rolls and Wire Guide  
!
Turn Off power.  
View is from top of drive rolls  
looking down with pressure  
assembly open.  
1
2
3
4
5
Drive Roll Securing Nut  
Drive Roll  
Correct  
Incorrect  
4
3
Wire Guide  
2
1
Welding Wire  
Drive Gear  
5
Insert screwdriver, and turn screw  
in or out until drive roll groove lines  
up with wire guide.  
Close pressure roll assembly.  
Tools Needed:  
Ref. 800 412-A  
OM-230 693 Page 30  
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6-5. Troubleshooting  
Trouble  
Remedy  
Be sure line disconnect switch is On (see Section 4-13).  
No weld output; wire does not feed.  
Replace building line fuse or reset circuit breaker if open (see Section 4-13).  
Secure gun trigger connections (see welding gun Owner’s Manual).  
HL.P 001 appears on meters. Turn power switch off and back on, if HL.P 001 appears on meters again,  
have Factory Authorized Service Agent check unit.  
HL.P 002 appears on meters. Thermistor T is detecting an overheating condition. Wait for unit to cool  
allowingthe fan to run. After unit is cool, if HL.P 002 message remains, have Factory Authorized Service  
Agent check for an open Thermistor T (see Section 6-2).  
HL.P 004 appears on meters. Reset message by releasing the trigger or removing stuck wire causing  
short circuit (see Section 5-2) . If message remains, have Factory Authorized Service Agent check for  
shorted trigger leads.  
Have Factory Authorized Service Agent check Power switch.  
Have Factory Authorized Service Agent check all board connections and main control board.  
Connect work clamp to get good metal to metal contact.  
No Weld Output; wire feeds.  
Replace contact tip (see welding gun Owner’s Manual.  
HL.P 003 appears on meters, have Factory Authorized Service Agent check main control board and main  
rectifier.  
Low weld output.  
Connect unit to proper input voltage or check for low line voltage (see Section 4-13).  
Have Factory Authorized Service Agent check main control board.  
Have Factory Authorized Service Agent check fan-on-demand circuit.  
Fan motor does not run.  
Low, high, or erratic wire speed.  
Readjust drive roll pressure (see Section 4-14).  
Replace inlet guide, contact tip, and/or liner if necessary (see welding gun Owner’s Manual).  
Have Factory Authorized Service Agent check main control board.  
OM-230 693 Page 31  
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Trouble  
Remedy  
No wire feed.  
Clear obstruction in gun contact tip or liner (see welding gun Owner’s Manual).  
Readjust drive roll pressure (see Section 4-14).  
Rethread welding wire (see Section 4-14).  
HL.P 002 appears on meters. Thermistor T is detecting an overheating condition. Wait for unit to cool  
allowing the fan to run. After unit is cool, If HL.P 002 message remains, contact Factory Authorized  
Service Agent (see Section 6-2).  
HL.P 004 appears on meters. Reset message by releasing the trigger or removing stuck wire causing  
short circuit (see Section 5-2) . If message remains, have Factory Authorized Service Agent check for  
shorted trigger leads.  
HL.P 005 appears on meters. Wire feed malfunction. Check wire feed delivery system.  
Check gun trigger and leads. Repair or replace gun if necessary.  
Have Factory Authorized Service Agent check main control board.  
OM-230 693 Page 32  
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Notes  
OM-230 693 Page 33  
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SECTION 7 − ELECTRICAL DIAGRAM  
Figure 7-1. Circuit Diagram  
OM-230 693 Page 34  
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229 485-A  
OM-230 693 Page 35  
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SECTION 8 − MIG WELDING (GMAW) GUIDELINES  
8-1. Typical MIG Process Connections  
!
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.  
Regulator/  
Flowmeter  
Wire Feeder/  
Power Source  
Gun  
Shielding Gas  
Gas  
Workpiece  
Work Clamp  
mig1 2007−05 / 801 909-A  
OM-230 693 Page 36  
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8-2. Typical MIG Process Control Settings  
. 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.  
Material thickness determines weld  
parameters.  
1/8 or  
.125 in  
Convert Material  
Thickness to  
Amperage (A)  
(.001 in = 1 ampere)  
.125 in = 125 A  
Wire Size  
Amperage Range  
.035 in  
.023 in  
.030 in  
.035 in  
30 − 90 A  
40 − 145 A  
50 − 180 A  
Select Wire Size  
Select Wire Speed  
(Amperage)  
Wire  
Size  
Wire Speed  
(Approx.)  
Recommendation  
.023 in  
.030 in  
.035 in  
3.5 in per ampere  
2 in per ampere  
1.6 in per ampere  
3.5 x 125 A = 437 ipm  
2 x 125 A = 250 ipm  
1.6 x 125 A = 200 ipm  
125 A based on 1/8 in  
material thickness  
ipm = inch per minute  
Low voltage: wire stubs into work  
High voltage: arc is unstable (spatter)  
Select Voltage  
Set voltage midway between high/low voltage.  
Voltage controls height and  
width of weld bead.  
Wire speed (amperage) controls weld  
penetration(wire speed = burn-off rate)  
OM-230 693 Page 37  
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8-3. 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  
1
2
3
4
Workpiece  
Work Clamp  
3
Electrode Extension (Stickout)  
1/4 to 1/2 in (6 To 13 mm)  
2
5
Cradle Gun and Rest Hand on  
Workpiece  
5
4
0°-15°  
90°  
90°  
End View Of Work Angle  
Side View Of Gun Angle  
GROOVE WELDS  
0°-15°  
45°  
45°  
End View Of Work Angle  
Side View Of Gun Angle  
FILLET WELDS  
S-0421-A  
OM-230 693 Page 38  
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8-4. Conditions That Affect Weld Bead Shape  
. Weld bead shape depends on gun angle, direction of travel, electrode extension (stickout), travel speed, thickness of base metal, wire feed speed  
(weld current), and voltage.  
10°  
Push  
10°  
Perpendicular  
Drag  
GUN ANGLES AND WELD BEAD PROFILES  
Short  
Normal  
Long  
ELECTRODE EXTENSIONS (STICKOUT)  
Short  
Normal  
Long  
FILLET WELD ELECTRODE EXTENSIONS (STICKOUT)  
Slow  
Normal  
Fast  
GUN TRAVEL SPEED  
S-0634  
OM-230 693 Page 39  
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8-5. Gun Movement During Welding  
. 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
2
3
Stringer Bead − Steady  
Movement Along Seam  
1
2
Weave Bead − Side To Side  
Movement Along Seam  
Weave Patterns  
Use weave patterns to cover a wide  
area in one pass of the electrode.  
3
S-0054-A  
8-6. Poor Weld Bead Characteristics  
1
2
3
4
5
Large Spatter Deposits  
Rough, Uneven Bead  
1
Slight Crater During Welding  
Bad Overlap  
Poor Penetration  
2
4
3
5
S-0053-A  
8-7. Good Weld Bead Characteristics  
1
2
3
Fine Spatter  
Uniform Bead  
Moderate Crater During  
Welding  
1
Weld a new bead or layer for each  
1/8 in (3.2 mm) thickness in metals  
being welded.  
4
5
No Overlap  
Good Penetration into Base  
Metal  
2
4
3
5
S-0052-B  
OM-230 693 Page 40  
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8-8. Troubleshooting − Excessive Spatter  
Excessive Spatter − scattering of molten metal particles that  
cool to solid form near weld bead.  
S-0636  
Possible Causes  
Wire feed speed too high.  
Corrective Actions  
Select lower wire feed speed.  
Select lower voltage range.  
Use shorter electrode extension (stickout).  
Voltage too high.  
Electrode extension (stickout) too long.  
Workpiece dirty.  
Remove all grease, oil, moisture, rust, paint, undercoating, and dirt from work surface before welding.  
Increase flow of shielding gas at regulator/flowmeter and/or prevent drafts near welding arc.  
Use clean, dry welding wire.  
Insufficient shielding gas at welding arc.  
Dirty welding wire.  
Eliminate pickup of oil or lubricant on welding wire from feeder or liner.  
8-9. 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.  
Use welding grade shielding gas; change to different gas.  
Use clean, dry welding wire.  
Wrong gas.  
Dirty 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.  
8-10. Troubleshooting − Excessive Penetration  
Excessive Penetration − weld metal melting through base metal  
and hanging underneath weld.  
Excessive Penetration Good Penetration  
S-0639  
Possible Causes  
Excessive heat input.  
Corrective Actions  
Select lower voltage range and reduce wire feed speed.  
Increase travel speed.  
OM-230 693 Page 41  
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8-11. Troubleshooting − Lack Of Penetration  
Lack Of Penetration − shallow  
fusion between weld metal and  
base metal.  
Lack of Penetration Good Penetration  
S-0638  
Possible Causes  
Corrective Actions  
Improper joint preparation.  
Improper weld technique.  
Material too thick. Joint preparation and design must provide access to bottom of groove while  
maintaining proper welding wire extension and arc characteristics.  
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.  
Select higher wire feed speed and/or select higher voltage range.  
Reduce travel speed.  
Insufficient heat input.  
8-12. Troubleshooting − Incomplete Fusion  
Incomplete Fusion − failure of weld metal to fuse completely with  
base metal or a preceeding weld bead.  
S-0637  
Possible Causes  
Workpiece dirty.  
Corrective Actions  
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.  
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.  
Improper welding technique.  
Use correct gun angle of 0 to 15 degrees.  
8-13. Troubleshooting − Burn-Through  
Burn-Throughweld metal melting completely through base metal  
resulting in holes where no metal remains.  
S-0640  
Possible Causes  
Corrective Actions  
Excessive heat input.  
Select lower voltage range and reduce wire feed speed.  
Increase and/or maintain steady travel speed.  
OM-230 693 Page 42  
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8-14. Troubleshooting − Waviness Of Bead  
Waviness Of Bead − weld metal that is not parallel and does not cover  
joint formed by base metal.  
S-0641  
Possible Causes  
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.  
Corrective Actions  
8-15. 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.  
S-0642  
Possible Causes  
Corrective Actions  
Excessive heat input.  
Use restraint (clamp) to hold base metal in position.  
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-230 693 Page 43  
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8-16. Common 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  
Short Circuiting  
Stainless Steel  
Spray Arc Steel  
Short Circuiting Steel  
Aluminum  
Argon  
X
Argon + 25% CO  
X
2
80% or greater Argon +  
1
X
X
balance CO or Oxygen  
2
100% CO  
X
2
2
Tri-Mix  
X
1
2
Limited short circuiting use  
90% HE + 7-1/2% AR + 2-1/2% CO  
2
8-17. Troubleshooting Guide For Semiautomatic Welding Equipment  
Problem  
Probable Cause  
Remedy  
Too little pressure on wire feed rolls.  
Increase pressure setting on wire feed rolls.  
Wire feed motor operates, but  
wire does not feed.  
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.  
Restriction in the gun and/or assembly.  
Decrease brake pressure on wire spool.  
Check and replace cable, gun, and contact tip if  
damaged. Check size of contact tip and cable liner,  
replace if necessary.  
Too much pressure on wire feed rolls.  
Decrease pressure setting on wire feed rolls.  
Wire curling up in front of the  
wire feed rolls (bird nesting).  
Incorrect cable liner or gun contact tip size.  
Check size of contact tip and check cable liner length  
and diameter, replace if necessary.  
Gun end not inserted into drive housing properly.  
Loosen gun securing bolt in drive housing and push gun  
end into housing just enough so it does not touch wire  
feed rolls.  
Dirty or damaged (kinked) liner.  
Gas cylinder empty.  
Replace liner.  
Replace empty gas cylinder.  
Clean or replace gas nozzle.  
Wire feeds, but no gas flows.  
Gas nozzle plugged.  
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  
gas hose in gun and cable assembly.  
Loose or broken wires to gas solenoid.  
Gas solenoid valve not operating.  
Have Factory Authorized Service Agent repair wiring.  
Have Factory Authorized Service Agent replace gas  
solenoid valve.  
Incorrect primary voltage connected to welding power Check primary voltage and relink welding power source  
source. for correct voltage.  
OM-230 693 Page 44  
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Problem  
Probable Cause  
Remedy  
Wire slipping in drive rolls.  
Adjust pressure setting on wire feed rolls. Replace worn  
drive rolls if necessary.  
Welding arc not stable.  
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 Readjust welding parameters.  
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.  
OM-230 693 Page 45  
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SECTION 9 − PARTS LIST  
9-1. Drive Roll And Wire Guide Kits  
.Base selection of drive rolls upon the following recommended usages:  
1
2
3
4
5
V-Grooved rolls for hard wire.  
U-Grooved rolls for soft and soft shelled cored wires.  
U-Cogged rolls for extremely soft shelled wires (usually hard surfacing types).  
V-Knurled rolls for hard shelled cored wires.  
Drive roll types may be mixed to suit particular requirements (example: V-Knurled roll in combination  
with U-Grooved).  
Wire Diameter  
Decimal  
Drive Roll  
Part No.  
Inlet  
Wire Guide  
Kit No.  
Fraction  
Metric  
Type  
.023/.025 in.  
.030/.035 in.  
.023/.025 in.  
.030/.035 in.  
0.6 mm  
087 131  
204 579  
087 130  
203 526  
V-Grooved  
V-Grooved  
056 192  
056 192  
0.8/0.9 mm  
.030 in.  
.035 in.  
.045 in.  
.030 in.  
.035 in.  
.045 in.  
0.8 mm  
0.9 mm  
1.2 mm  
079 594  
079 595  
079 596  
053 695  
053 700  
053 697  
V-Grooved  
V-Grooved  
V-Grooved  
056 192  
056 192  
056 193  
Ref. S-0026-B/7-91  
OM-230 693 Page 46  
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Effective January 1, 2007  
(Equipment with a serial number preface of “LH” or newer)  
This limited warranty supersedes all previous Miller warranties and is exclusive with no other  
guarantees or warranties expressed or implied.  
Warranty Questions?  
LIMITED WARRANTY − Subject to the terms and conditions  
below, Miller Electric Mfg. Co., 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.  
*
Induction Heating Coils and Blankets, Cables, and  
Non-Electronic Controls  
Call  
1-800-4-A-MILLER  
for your local  
Miller distributor.  
*
*
*
*
*
*
APT & SAF Model Plasma Cutting Torches  
Remote Controls  
Accessory (Kits)  
Replacement Parts (No labor)  
Spoolmate Spoolguns  
Canvas Covers  
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.  
Your distributor also gives  
you ...  
Miller’s True Blue® Limited Warranty shall not apply to:  
Service  
1. Consumable components; such as contact tips,  
cutting nozzles, contactors, brushes, slip rings, relays  
or parts that fail due to normal wear. (Exception:  
brushes, slip rings, and relays are covered on Bobcat,  
Trailblazer, and Legend models.)  
You always get the fast,  
reliable response you  
need. Most replacement  
parts can be in your  
hands in 24 hours.  
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  
one year after the equipment is shipped to a North American  
distributor or eighteen months after the equipment is shipped to  
an International distributor.  
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.  
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.  
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.  
1. 5 Years Parts — 3 Years Labor  
*
Original main power rectifiers  
2. 3 Years — Parts and Labor  
*
*
*
*
*
*
*
*
Transformer/Rectifier Power Sources  
Plasma Arc Cutting Power Sources  
Process Controllers  
MILLER PRODUCTS ARE INTENDED FOR PURCHASE AND  
USE BY COMMERCIAL/INDUSTRIAL USERS AND PERSONS  
TRAINED AND EXPERIENCED IN THE USE AND  
MAINTENANCE OF WELDING EQUIPMENT.  
Semi-Automatic and Automatic Wire Feeders  
Inverter Power Sources (Unless Otherwise Stated)  
Water Coolant Systems (Integrated)  
Intellitig  
In the event of a warranty claim covered by this warranty, the  
exclusive remedies shall be, at Miller’s option: (1) repair; or (2)  
replacement; or, where authorized in writing by Miller in  
appropriate cases, (3) the reasonable 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 actual use) upon return of the goods at  
customer’s risk and expense. Miller’s option of repair or  
replacement will be F.O.B., Factory at Appleton, Wisconsin, or  
F.O.B. at a Miller authorized service facility as determined by  
Miller. Therefore no compensation or reimbursement for  
transportation costs of any kind will be allowed.  
Engine Driven Welding Generators  
(NOTE: Engines are warranted separately by the  
engine manufacturer.)  
3. 1 Year — Parts and Labor Unless Specified  
*
Motor Driven Guns (w/exception of Spoolmate  
Spoolguns)  
*
*
*
*
Positioners and Controllers  
Automatic Motion Devices  
RFCS Foot Controls  
TO THE EXTENT PERMITTED BY LAW, THE REMEDIES  
PROVIDED HEREIN ARE THE SOLE AND EXCLUSIVE  
REMEDIES. IN NO EVENT SHALL MILLER BE LIABLE FOR  
Induction Heating Power Sources, Coolers, and  
Electronic  
Controls/Recorders  
DIRECT,  
INDIRECT,  
SPECIAL,  
INCIDENTAL  
OR  
CONSEQUENTIAL DAMAGES (INCLUDING LOSS OF  
PROFIT), WHETHER BASED ON CONTRACT, TORT OR ANY  
OTHER LEGAL THEORY.  
*
*
*
*
*
*
*
*
*
*
Water Coolant Systems (Non-Integrated)  
Flowgauge and Flowmeter Regulators (No Labor)  
HF Units  
ANY EXPRESS WARRANTY NOT PROVIDED HEREIN AND  
Grids  
ANY  
IMPLIED  
WARRANTY,  
GUARANTY  
OR  
REPRESENTATION AS TO PERFORMANCE, AND ANY  
REMEDY FOR BREACH OF CONTRACT TORT OR ANY  
OTHER LEGAL THEORY WHICH, BUT FOR THIS  
PROVISION, MIGHT ARISE BY IMPLICATION, OPERATION  
OF LAW, CUSTOM OF TRADE OR COURSE OF DEALING,  
Spot Welders  
Load Banks  
Arc Stud Power Sources & Arc Stud Guns  
Racks  
INCLUDING  
ANY  
IMPLIED  
WARRANTY  
OF  
Running Gear/Trailers  
MERCHANTABILITY OR FITNESS FOR PARTICULAR  
PURPOSE, WITH RESPECT TO ANY AND ALL EQUIPMENT  
FURNISHED BY MILLER IS EXCLUDED AND DISCLAIMED  
BY MILLER.  
Plasma Cutting Torches (except APT & SAF  
Models)  
*
Field Options  
(NOTE: Field options are covered under True Blue®  
for the remaining warranty period of the product they  
are installed in, or for a minimum of one year —  
whichever is greater.)  
Some states in the U.S.A. do not allow limitations of how long an  
implied warranty lasts, or the exclusion of incidental, indirect,  
special or consequential damages, so the above limitation or  
exclusion may not apply to you. This warranty provides specific  
legal rights, and other rights may be available, but may vary from  
state to state.  
*
*
*
Bernard-Branded Mig Guns (No Labor)  
Weldcraft-Branded TIG Torches (No Labor)  
Subarc Wire Drive Assemblies  
In Canada, legislation in some provinces provides for certain  
additional warranties or remedies other than as stated herein,  
and to the extent that they may not be waived, the limitations and  
exclusions set out above may not apply. This Limited Warranty  
provides specific legal rights, and other rights may be available,  
4. 6 Months — Batteries  
5. 90 Days — Parts  
*
MIG Guns/TIG Torches and Subarc (SAW) Guns  
but may vary from province to province.  
miller_warr 2007−01  
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Owner’s Record  
Please complete and retain with your personal records.  
Model Name  
Purchase Date  
Distributor  
Address  
Serial/Style Number  
(Date which equipment was delivered to original customer.)  
City  
State  
Zip  
For Service  
Contact a DISTRIBUTOR or SERVICE AGENCY near you.  
Always provide Model Name and Serial/Style Number.  
Contact your Distributor for:  
Welding Supplies and Consumables  
Options and Accessories  
Personal Safety Equipment  
Service and Repair  
Miller Electric Mfg. Co.  
An Illinois Tool Works Company  
1635 West Spencer Street  
Appleton, WI 54914 USA  
Replacement Parts  
Training (Schools, Videos, Books)  
International Headquarters−USA  
USA Phone: 920-735-4505 Auto-Attended  
USA & Canada FAX: 920-735-4134  
International FAX: 920-735-4125  
Technical Manuals (Servicing Information  
and Parts)  
Circuit Diagrams  
European Headquarters −  
United Kingdom  
Phone: 44 (0) 1204-593493  
FAX: 44 (0) 1204-598066  
Welding Process Handbooks  
To locate a Distributor or Service Agency visit  
www.MillerWelds.com  
Contact the Delivering Carrier to:  
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.  
PRINTED IN USA  
© 2007 Miller Electric Mfg. Co.2007−01  
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