Miller | MJ320465N | Owner Manual | Miller MILLERMATIC 252 User manual

Miller MILLERMATIC 252 User manual
OM-230693M
2018−03
Processes
MIG (GMAW) Welding
Flux Cored (FCAW) Welding
Description
Arc Welding Power Source
and Wire Feeder
Millermatic 252
R
For product information,
Owner’s Manual translations,
and more, visit
www.MillerWelds.com
File: MIG (GMAW)
From Miller to You
Thank you and congratulations on choosing Miller. Now you can get
the job done and get it done right. We know you don’t have time to do
it any other way.
That’s why when Niels Miller first started building arc welders in 1929,
he made sure his products offered long-lasting value and superior
quality. Like you, his customers couldn’t afford anything less. Miller
products had to be more than the best they could be. They had to be the
best you could buy.
Today, the people that build and sell Miller products continue the
tradition. They’re just as committed to providing equipment and service
that meets the high standards of quality and value established in 1929.
This Owner’s Manual is designed to help you get the most out of your
Miller products. Please take time to read the Safety precautions. They
will help you protect yourself against potential hazards on the worksite.
We’ve made installation and operation quick
and easy. With Miller you can count on years
of reliable service with proper maintenance.
And if for some reason the unit needs repair,
there’s a Troubleshooting section that will
help you figure out what the problem is. The
parts list will then help you to decide the
exact part you may need to fix the problem.
Warranty and service information for your
particular model are also provided.
Miller is the first welding
equipment manufacturer in
the U.S.A. to be registered to
the ISO 9001 Quality System
Standard.
Miller Electric manufactures a full line
of welders and welding related equipment.
For information on other quality Miller
products, contact your local Miller distributor to receive the latest full
line catalog or individual specification sheets. To locate your nearest
distributor or service agency call 1-800-4-A-Miller, or visit us at
www.MillerWelds.com on the web.
Mil_Thank 2017−06
Working as hard as you do
− every power source from
Miller is backed by the most
hassle-free warranty in the
business.
TABLE OF CONTENTS
SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1. Symbol Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2. Arc Welding Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3. Additional Symbols For Installation, Operation, And Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4. California Proposition 65 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-5. Principal Safety Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-6. EMF Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1. Symboles utilisés . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2. Dangers relatifs au soudage à l’arc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3. Dangers supplémentaires en relation avec l’installation, le fonctionnement et la maintenance . . . . .
2-4. Proposition californienne 65 Avertissements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-5. Principales normes de sécurité . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-6. Informations relatives aux CEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 3 − DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1. Symbols And Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 4 − SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1. Power Source Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2. Welding Power Source Duty Cycle And Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-3. Volt-Ampere Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 5 − INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1. Serial Number And Rating Label Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2. Selecting A Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-3. Weld Output Terminals And Selecting Cable Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-4. Connecting To Weld Output Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-5. Installing Work Cable And Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-6. Connecting Spoolmatic® 15A Or 30A Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-7. Connecting XR Aluma-Pro, XR Edge, XR-A Gun, Or XR-A Python . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-8. Setting Gun Polarity For Wire Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-9. Installing Gas Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-10. Installing Wire Spool And Adjusting Hub Tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-11. Positioning Jumper Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-12. Electrical Service Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-13. Connecting Input Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-14. Threading Welding Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-15. Weld Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 6 − OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-1. Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2. Voltmeter And Wire Feed Speed Meter Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-3. Jog Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-4. Timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5. Set Up Push Motor Torque (SUP) Or Reset (rES) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 7 − MAINTENANCE &TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-1. Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-2. Unit Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-3. Changing Drive Roll and Wire Inlet Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-4. Aligning Drive Rolls and Wire Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-5. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS
SECTION 8 − ELECTRICAL DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 9 − MIG WELDING (GMAW) GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-1. Typical MIG Process Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-2. Typical MIG Process Control Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-3. Holding And Positioning Welding Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-4. Conditions That Affect Weld Bead Shape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-5. Gun Movement During Welding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-6. Poor Weld Bead Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-7. Good Weld Bead Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-8. Troubleshooting − Excessive Spatter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-9. Troubleshooting − Porosity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-10. Troubleshooting − Excessive Penetration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-11. Troubleshooting − Lack Of Penetration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-12. Troubleshooting − Incomplete Fusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-13. Troubleshooting − Burn-Through . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-14. Troubleshooting − Waviness Of Bead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-15. Troubleshooting − Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-16. Common MIG Shielding Gases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-17. Troubleshooting Guide For Semiautomatic Welding Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 10 − PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WARRANTY
34
36
36
37
38
39
40
40
40
41
41
41
42
42
42
43
43
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SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING
som 2018−01
7
Protect yourself and others from injury — read, follow, and save these important safety precautions and operating instructions.
1-1. Symbol Usage
DANGER! − Indicates a hazardous situation which, if
not avoided, will result in death or serious injury. The
possible hazards are shown in the adjoining symbols
or explained in the text.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury. The possible
hazards are shown in the adjoining symbols or explained in the text.
NOTICE − Indicates statements not related to personal injury.
. Indicates special instructions.
This group of symbols means Warning! Watch Out! ELECTRIC
SHOCK, MOVING PARTS, and HOT PARTS hazards. Consult symbols and related instructions below for necessary actions to avoid the
hazards.
1-2. Arc Welding Hazards
The symbols shown below are used throughout this manual
to call attention to and identify possible hazards. When you
see the symbol, watch out, and follow the related instructions
to avoid the hazard. The safety information given below is
only a summary of the more complete safety information
found in the Safety Standards listed in Section 1-5. Read and
follow all Safety Standards.
Only qualified persons should install, operate, maintain, and
repair this equipment. A qualified person is defined as one
who, by possession of a recognized degree, certificate, or
professional standing, or who by extensive knowledge, training and experience, has successfully demonstrated ability to
solve or resolve problems relating to the subject matter, the
work, or the project and has received safety training to recognize and avoid the hazards involved.
During operation, keep everybody, especially children, away.
ELECTRIC SHOCK can kill.
Touching live electrical parts can cause fatal shocks
or severe burns. The electrode and work circuit is
electrically live whenever the output is on. The input
power circuit and machine internal circuits are also
live when power is on. In semiautomatic or automatic
wire welding, the wire, wire reel, drive roll housing,
and all metal parts touching the welding wire are
electrically live. Incorrectly installed or improperly
grounded equipment is a hazard.
D Do not touch live electrical parts.
D Wear dry, hole-free insulating gloves and body protection.
D Insulate yourself from work and ground using dry insulating mats
or covers big enough to prevent any physical contact with the work
or ground.
D Do not use AC weld output in damp, wet, or confined spaces, or if
there is a danger of falling.
D Use AC output ONLY if required for the welding process.
D If AC output is required, use remote output control if present on
unit.
D Additional safety precautions are required when any of the following electrically hazardous conditions are present: in damp
locations or while wearing wet clothing; on metal structures such
as floors, gratings, or scaffolds; when in cramped positions such
as sitting, kneeling, or lying; or when there is a high risk of unavoidable or accidental contact with the workpiece or ground. For these
conditions, use the following equipment in order presented: 1) a
semiautomatic DC constant voltage (wire) welder, 2) a DC manual
(stick) welder, or 3) an AC welder with reduced open-circuit voltage. In most situations, use of a DC, constant voltage wire welder
is recommended. And, do not work alone!
D Disconnect input power or stop engine before installing or
servicing this equipment. Lockout/tagout input power according to
OSHA 29 CFR 1910.147 (see Safety Standards).
D Properly install, ground, and operate this equipment according to
its Owner’s Manual and national, state, and local codes.
D Always verify the supply ground − check and be sure that input
power cord ground wire is properly connected to ground terminal in
disconnect box or that cord plug is connected to a properly
grounded receptacle outlet.
D When making input connections, attach proper grounding conductor first − double-check connections.
D Keep cords dry, free of oil and grease, and protected from hot metal
and sparks.
D Frequently inspect input power cord and ground conductor for
damage or bare wiring – replace immediately if damaged – bare
wiring can kill.
D Turn off all equipment when not in use.
D Do not use worn, damaged, undersized, or repaired cables.
D Do not drape cables over your body.
D If earth grounding of the workpiece is required, ground it directly
with a separate cable.
D Do not touch electrode if you are in contact with the work, ground,
or another electrode from a different machine.
D Do not touch electrode holders connected to two welding machines at the same time since double open-circuit voltage will be
present.
D Use only well-maintained equipment. Repair or replace damaged
parts at once. Maintain unit according to manual.
D Wear a safety harness if working above floor level.
D Keep all panels and covers securely in place.
D Clamp work cable with good metal-to-metal contact to workpiece
or worktable as near the weld as practical.
D Insulate work clamp when not connected to workpiece to prevent
contact with any metal object.
D Do not connect more than one electrode or work cable to any
single weld output terminal. Disconnect cable for process not in
use.
D Use GFCI protection when operating auxiliary equipment in damp
or wet locations.
SIGNIFICANT DC VOLTAGE exists in inverter welding power sources AFTER removal of input power.
D Turn off unit, disconnect input power, and discharge input capacitors according to instructions in Manual before touching any parts.
HOT PARTS can burn.
D Do not touch hot parts bare handed.
D Allow cooling period before working on
equipment.
D To handle hot parts, use proper tools and/or wear heavy, insulated welding gloves and clothing to prevent burns.
OM-230693 Page 1
FUMES AND GASES can be hazardous.
Welding produces fumes and gases. Breathing
these fumes and gases can be hazardous to your
health.
D Keep your head out of the fumes. Do not breathe the fumes.
D Ventilate the work area and/or use local forced ventilation at the arc
to remove welding fumes and gases. The recommended way to
determine adequate ventilation is to sample for the composition
and quantity of fumes and gases to which personnel are exposed.
D If ventilation is poor, wear an approved air-supplied respirator.
D Read and understand the Safety Data Sheets (SDSs) and the
manufacturer’s instructions for adhesives, coatings, cleaners,
consumables, coolants, degreasers, fluxes, and metals.
D Work in a confined space only if it is well ventilated, or while
wearing an air-supplied respirator. Always have a trained watchperson nearby. Welding fumes and gases can displace air and
lower the oxygen level causing injury or death. Be sure the breathing air is safe.
D Do not weld in locations near degreasing, cleaning, or spraying operations. The heat and rays of the arc can react with vapors to form
highly toxic and irritating gases.
D Do not weld on coated metals, such as galvanized, lead, or
cadmium plated steel, unless the coating is removed from the weld
area, the area is well ventilated, and while wearing an air-supplied
respirator. The coatings and any metals containing these elements
can give off toxic fumes if welded.
ARC RAYS can burn eyes and skin.
Arc rays from the welding process produce intense
visible and invisible (ultraviolet and infrared) rays
that can burn eyes and skin. Sparks fly off from the
weld.
D Wear an approved welding helmet fitted with a proper shade of
filter lenses to protect your face and eyes from arc rays and
sparks when welding or watching (see ANSI Z49.1 and Z87.1
listed in Safety Standards).
D Wear approved safety glasses with side shields under your
helmet.
D Use protective screens or barriers to protect others from flash,
glare and sparks; warn others not to watch the arc.
D Wear body protection made from durable, flame−resistant material (leather, heavy cotton, wool). Body protection includes
oil-free clothing such as leather gloves, heavy shirt, cuffless
trousers, high shoes, and a cap.
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
burns. Accidental contact of electrode to metal objects can cause
sparks, explosion, overheating, or fire. Check and be sure the area is
safe before doing any welding.
D Remove all flammables within 35 ft (10.7 m) of the welding arc. If
this is not possible, tightly cover them with approved covers.
D Do not weld where flying sparks can strike flammable material.
D Protect yourself and others from flying sparks and hot metal.
D Be alert that welding sparks and hot materials from welding can
easily go through small cracks and openings to adjacent areas.
D Watch for fire, and keep a fire extinguisher nearby.
D Be aware that welding on a ceiling, floor, bulkhead, or partition can
cause fire on the hidden side.
OM-230693 Page 2
D Do not cut or weld on tire rims or wheels. Tires can explode if heated. Repaired rims and wheels can fail. See OSHA 29 CFR
1910.177 listed in Safety Standards.
D Do not weld on containers that have held combustibles, or on
closed containers such as tanks, drums, or pipes unless they are
properly prepared according to AWS F4.1 and AWS A6.0 (see
Safety Standards).
D Do not weld where the atmosphere can contain flammable dust,
gas, or liquid vapors (such as gasoline).
D Connect work cable to the work as close to the welding area as
practical to prevent welding current from traveling long, possibly
unknown paths and causing electric shock, sparks, and fire
hazards.
D Do not use welder to thaw frozen pipes.
D Remove stick electrode from holder or cut off welding wire at
contact tip when not in use.
D Wear body protection made from durable, flame−resistant material
(leather, heavy cotton, wool). Body protection includes oil-free
clothing such as leather gloves, heavy shirt, cuffless trousers, high
shoes, and a cap.
D Remove any combustibles, such as a butane lighter or matches,
from your person before doing any welding.
D After completion of work, inspect area to ensure it is free of sparks,
glowing embers, and flames.
D Use only correct fuses or circuit breakers. Do not oversize or bypass them.
D Follow requirements in OSHA 1910.252 (a) (2) (iv) and NFPA 51B
for hot work and have a fire watcher and extinguisher nearby.
D Read and understand the Safety Data Sheets (SDSs) and the
manufacturer’s instructions for adhesives, coatings, cleaners,
consumables, coolants, degreasers, fluxes, and metals.
FLYING METAL or DIRT can injure eyes.
D Welding, chipping, wire brushing, and grinding
cause sparks and flying metal. As welds cool,
they can throw off slag.
D Wear approved safety glasses with side
shields even under your welding helmet.
BUILDUP OF GAS can injure or kill.
D Shut off compressed gas supply when not in use.
D Always ventilate confined spaces or use
approved air-supplied respirator.
ELECTRIC AND MAGNETIC FIELDS (EMF)
can affect Implanted Medical Devices.
D Wearers of Pacemakers and other Implanted
Medical Devices should keep away.
D Implanted Medical Device wearers should consult their doctor
and the device manufacturer before going near arc welding, spot
welding, gouging, plasma arc cutting, or induction heating
operations.
NOISE can damage hearing.
Noise from some processes or equipment can
damage hearing.
D Wear approved ear protection if noise level is high.
CYLINDERS can explode if damaged.
Compressed gas cylinders contain gas under high
pressure. If damaged, a cylinder can explode. Since
gas cylinders are normally part of the welding
process, be sure to treat them carefully.
D Protect compressed gas cylinders from excessive heat, mechanical shocks, physical damage, slag, open flames, sparks, and arcs.
D Install cylinders in an upright position by securing to a stationary
support or cylinder rack to prevent falling or tipping.
D Keep cylinders away from any welding or other electrical circuits.
D Never drape a welding torch over a gas cylinder.
D Never allow a welding electrode to touch any cylinder.
D Never weld on a pressurized cylinder − explosion will result.
D Use only correct compressed gas cylinders, regulators, hoses,
and fittings designed for the specific application; maintain them
and associated parts in good condition.
D Turn face away from valve outlet when opening cylinder valve. Do
not stand in front of or behind the regulator when opening the valve.
D Keep protective cap in place over valve except when cylinder is in
use or connected for use.
D Use the proper equipment, correct procedures, and sufficient
number of persons to lift, move, and transport cylinders.
D Read and follow instructions on compressed gas cylinders,
associated equipment, and Compressed Gas Association (CGA)
publication P-1 listed in Safety Standards.
1-3. Additional Symbols For Installation, Operation, And Maintenance
FIRE OR EXPLOSION hazard.
D Do not install or place unit on, over, or near
combustible surfaces.
D Do not install unit near flammables.
D Do not overload building wiring − be sure power supply system is
properly sized, rated, and protected to handle this unit.
FALLING EQUIPMENT can injure.
D Use lifting eye to lift unit only, NOT running
gear, gas cylinders, or any other accessories.
D Use correct procedures and equipment of adequate capacity to lift and support unit.
D If using lift forks to move unit, be sure forks are long enough to
extend beyond opposite side of unit.
D Keep equipment (cables and cords) away from moving vehicles
when working from an aerial location.
D Follow the guidelines in the Applications Manual for the Revised
NIOSH Lifting Equation (Publication No. 94−110) when manually lifting heavy parts or equipment.
OVERUSE can cause OVERHEATING
D Allow cooling period; follow rated duty cycle.
D Reduce current or reduce duty cycle before
starting to weld again.
D Do not block or filter airflow to unit.
FLYING SPARKS can injure.
D Wear a face shield to protect eyes and face.
D Shape tungsten electrode only on grinder with
proper guards in a safe location wearing proper
face, hand, and body protection.
D Sparks can cause fires — keep flammables away.
STATIC (ESD) can damage PC boards.
D Put on grounded wrist strap BEFORE handling
boards or parts.
D Use proper static-proof bags and boxes to
store, move, or ship PC boards.
MOVING PARTS can injure.
D Keep away from moving parts.
D Keep away from pinch points such as drive
rolls.
WELDING WIRE can injure.
D Do not press gun trigger until instructed to do
so.
D Do not point gun toward any part of the body,
other people, or any metal when threading
welding wire.
BATTERY EXPLOSION can injure.
D Do not use welder to charge batteries or jump
start vehicles unless it has a battery charging
feature designed for this purpose.
MOVING PARTS can injure.
D Keep away from moving parts such as fans.
D Keep all doors, panels, covers, and guards
closed and securely in place.
D Have only qualified persons remove doors, panels, covers, or
guards for maintenance and troubleshooting as necessary.
D Reinstall doors, panels, covers, or guards when maintenance is
finished and before reconnecting input power.
READ INSTRUCTIONS.
D Read and follow all labels and the Owner’s
Manual carefully before installing, operating, or
servicing unit. Read the safety information at
the beginning of the manual and in each
section.
D Use only genuine replacement parts from the manufacturer.
D Perform installation, maintenance, and service according to the
Owner’s Manuals, industry standards, and national, state, and
local codes.
OM-230693 Page 3
H.F. RADIATION can cause interference.
ARC WELDING can cause interference.
D High-frequency (H.F.) can interfere with radio
navigation, safety services, computers, and
communications equipment.
D Have only qualified persons familiar with electronic equipment
perform this installation.
D The user is responsible for having a qualified electrician promptly correct any interference problem resulting from the installation.
D If notified by the FCC about interference, stop using the
equipment at once.
D Have the installation regularly checked and maintained.
D Keep high-frequency source doors and panels tightly shut, keep
spark gaps at correct setting, and use grounding and shielding to
minimize the possibility of interference.
D
D
D
D
D
D Electromagnetic energy can interfere with
sensitive electronic equipment such as
computers and computer-driven equipment
such as robots.
Be sure all equipment in the welding area is electromagnetically
compatible.
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 electronic equipment.
Be sure this welding machine is installed and grounded
according to this manual.
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.
1-4. California Proposition 65 Warnings
WARNING: This product can expose you to chemicals including lead, which are known to the state of California to
cause cancer and birth defects or other reproductive
harm.
For more information, go to www.P65Warnings.ca.gov.
1-5. Principal Safety Standards
Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1,
is available as a free download from the American Welding Society at
http://www.aws.org or purchased from Global Engineering Documents
(phone: 1-877-413-5184, website: www.global.ihs.com).
Safe Practices for the Preparation of Containers and Piping for Welding
and Cutting, American Welding Society Standard AWS F4.1, from Global Engineering Documents (phone: 1-877-413-5184, website:
www.global.ihs.com).
Safe Practices for Welding and Cutting Containers that have Held Combustibles, American Welding Society Standard AWS A6.0, from Global
Engineering Documents (phone: 1-877-413-5184,
website: www.global.ihs.com).
National Electrical Code, NFPA Standard 70, from National Fire Protection Association, Quincy, MA 02169 (phone: 1-800-344-3555, website:
www.nfpa.org and www. sparky.org).
Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,
from Compressed Gas Association, 14501 George Carter Way, Suite
103, Chantilly, VA 20151 (phone: 703-788-2700, website:www.cganet.com).
Safety in Welding, Cutting, and Allied Processes, CSA Standard
W117.2, from Canadian Standards Association, Standards Sales, 5060
Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5NS
(phone: 800-463-6727, website: www.csagroup.org).
Safe Practice For Occupational And Educational Eye And Face Protection, ANSI Standard Z87.1, from American National Standards Institute,
25 West 43rd Street, New York, NY 10036 (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,
Quincy, MA 02169 (phone: 1-800-344-3555, website: www.nfpa.org).
OSHA, Occupational Safety and Health Standards for General Industry, Title 29, Code of Federal Regulations (CFR), Part 1910.177 Subpart
N, Part 1910 Subpart Q, and Part 1926, Subpart J, from U.S. Government Printing Office, Superintendent of Documents, P.O. Box 371954,
Pittsburgh, PA 15250-7954 (phone: 1-866-512-1800) (there are 10 OSHA Regional Offices—phone for Region 5, Chicago, is 312-353-2220,
website: www.osha.gov).
Applications Manual for the Revised NIOSH Lifting Equation, The National Institute for Occupational Safety and Health (NIOSH), 1600
Clifton Rd, Atlanta, GA 30329-4027 (phone: 1-800-232-4636, website:
www.cdc.gov/NIOSH).
1-6. EMF Information
Electric current flowing through any conductor causes localized electric
and magnetic fields (EMF). The current from arc welding (and allied processes including spot welding, gouging, plasma arc cutting, and
induction heating operations) creates an EMF field around the welding
circuit. EMF fields can interfere with some medical implants, e.g. pacemakers. Protective measures for persons wearing medical implants
have to be taken. For example, restrict access for passers−by or conduct individual risk assessment for welders. All welders should use the
following procedures in order to minimize exposure to EMF fields from
the welding circuit:
1. Keep cables close together by twisting or taping them, or using a
cable cover.
2. Do not place your body between welding cables. Arrange cables
to one side and away from the operator.
3. Do not coil or drape cables around your body.
OM-230693 Page 4
4. Keep head and trunk as far away from the equipment in the
welding circuit as possible.
5. Connect work clamp to workpiece as close to the weld as
possible.
6. Do not work next to, sit or lean on the welding power source.
7. Do not weld whilst carrying the welding power source or wire
feeder.
About Implanted Medical Devices:
Implanted Medical Device wearers should consult their doctor and the
device manufacturer before performing or going near arc welding, spot
welding, gouging, plasma arc cutting, or induction heating operations.
If cleared by your doctor, then following the above procedures is recommended.
SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION
som_2018−01_fre
7
Pour écarter les risques de blessure pour vous−même et pour autrui — lire, appliquer et ranger en lieu sûr ces consignes relatives
aux précautions de sécurité et au mode opératoire.
2-1. Symboles utilisés
DANGER! − Indique une situation dangereuse qui si on
l’évite pas peut donner la mort ou des blessures graves.
Les dangers possibles sont montrés par les symboles
joints ou sont expliqués dans le texte.
Indique une situation dangereuse qui si on l’évite pas
peut donner la mort ou des blessures graves. Les dangers possibles sont montrés par les symboles joints ou
sont expliqués dans le texte.
AVIS − Indique des déclarations pas en relation avec des blessures
personnelles.
. Indique des instructions spécifiques.
Ce groupe de symboles veut dire Avertissement! Attention! DANGER
DE CHOC ELECTRIQUE, PIECES EN MOUVEMENT, et PIECES
CHAUDES. Consulter les symboles et les instructions ci-dessous y
afférant pour les actions nécessaires afin d’éviter le danger.
2-2. Dangers relatifs au soudage à l’arc
Les symboles représentés ci-dessous sont utilisés dans ce manuel pour attirer l’attention et identifier les dangers possibles. En
présence de l’un de ces symboles, prendre garde et suivre les
instructions afférentes pour éviter tout risque. Les 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 Section 2-5. Lire et observer toutes les normes de sécurité.
L’installation, l’utilisation, l’entretien et les réparations ne
doivent être confiés qu’à des personnes qualifiées. Une
personne qualifiée est définie comme celle qui, par la
possession d’un diplôme reconnu, d’un certificat ou d’un
statut professionnel, ou qui, par une connaissance, une formation et une expérience approfondies, a démontré avec
succès sa capacité à résoudre les problèmes liés à la tâche,
le travail ou le projet et a reçu une formation en sécurité afin
de reconnaître et d’éviter les risques inhérents.
Pendant le fonctionnement, maintenir à distance toutes les
personnes, notamment les enfants de l’appareil.
UNE DÉCHARGE ÉLECTRIQUE peut
entraîner la mort.
Le contact d’organes électriques sous tension peut
provoquer des accidents mortels ou des brûlures
graves. Le circuit de l’électrode et de la pièce est sous
tension lorsque le courant est délivré à la sortie. Le
circuit d’alimentation et les circuits internes de la
machine sont également sous tension lorsque l’alimentation est sur Marche. Dans le mode de soudage avec
du fil, le fil, le dérouleur, le bloc de commande du
rouleau et toutes les parties métalliques en contact
avec le fil sont sous tension électrique. Un équipement
installé ou mis à la terre de manière incorrecte ou
impropre constitue un danger.
D Ne pas toucher aux pièces électriques sous tension.
D Porter des gants isolants et des vêtements de protection secs et
sans trous.
D S’isoler de la pièce à couper et du sol en utilisant des housses ou
des tapis assez grands afin d’éviter tout contact physique avec la
pièce à couper ou le sol.
D Ne pas utiliser de sortie de soudage CA dans des zones humides
ou confinées ou s’il y a un risque de chute.
D Se servir d’une source électrique à courant électrique UNIQUEMENT si le procédé de soudage le demande.
D Si l’utilisation d’une source électrique à courant électrique s’avère
nécessaire, se servir de la fonction de télécommande si l’appareil
en est équipé.
D D’autres consignes de sécurité sont nécessaires dans les conditions suivantes : risques électriques dans un environnement
humide ou si l’on porte des vêtements mouillés ; sur des structures
métalliques telles 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
(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,
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
l’utilisation d’un poste à souder DC à fil à tension constante est recommandée. En outre, ne pas travailler seul !
Couper l’alimentation ou arrêter le moteur avant de procéder à l’installation, à la réparation ou à l’entretien de l’appareil. Déverrouiller
l’alimentation selon la norme OSHA 29 CFR 1910.147 (voir normes de sécurité).
Installez, mettez à la terre et utilisez correctement cet équipement
conformément à son Manuel d’Utilisation et aux réglementations
nationales, gouvernementales 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.
En effectuant les raccordements d’entrée, fixer d’abord le conducteur de mise à la terre approprié et contre-vérifier les connexions.
Les câbles doivent être exempts d’humidité, d’huile et de graisse;
protégez−les contre les étincelles et les pièces métalliques
chaudes.
Vérifier fréquemment le cordon d’alimentation et le conducteur de
mise à la terre afin de s’assurer qu’il n’est pas altéré ou dénudé −,
le remplacer immédiatement s’il l’est −. Un fil dénudé peut entraîner la mort.
L’équipement doit être hors tension lorsqu’il n’est pas utilisé.
Ne pas utiliser des câbles usés, endommagés, de grosseur insuffisante ou mal épissés.
Ne pas enrouler les câbles autour du corps.
Si la pièce soudée doit être mise à la terre, le faire directement
avec un câble distinct.
Ne pas toucher l’électrode quand on est en contact avec la pièce,
la terre ou une électrode provenant d’une autre machine.
Ne pas toucher des porte électrodes connectés à deux machines
en même temps à cause de la présence d’une tension à vide doublée.
N’utiliser qu’un matériel en bon état. Réparer ou remplacer sur-lechamp les pièces endommagées. Entretenir l’appareil conformément à ce manuel.
Porter un harnais de sécurité si l’on doit travailler au-dessus du sol.
S’assurer que tous les panneaux et couvercles sont correctement
en place.
Fixer le câble de retour de façon à obtenir un bon contact métalmétal avec la pièce à souder ou la table de travail, le plus près possible de la soudure.
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. Débrancher le
câble pour le procédé non utilisé.
Utiliser une protection différentielle lors de l’utilisation d’un équipement auxiliaire dans des endroits humides ou mouillés.
Il reste une TENSION DC NON NÉGLIGEABLE dans
les sources de soudage onduleur UNE FOIS
l’alimentation coupée.
D Éteignez l’unité, débranchez le courant électrique, et déchargez
les condensateurs d’alimentation selon les instructions indiquées
dans le manuel avant de toucher les pièces.
OM-230693 Page 5
LES PIÈCES CHAUDES peuvent
provoquer des brûlures.
D Ne pas toucher à mains nues les parties chaudes.
D Prévoir une période de refroidissement avant
de travailler à l’équipement.
D Ne pas toucher aux pièces chaudes, utiliser les outils recommandés et porter des gants de soudage et des vêtements épais pour
éviter les brûlures.
LES FUMÉES ET LES GAZ peuvent
être dangereux.
Le soudage génère des fumées et des gaz. Leur
inhalation peut être dangereux pour votre santé.
D Eloigner votre tête des fumées. Ne pas respirer les fumées.
D À l’intérieur, ventiler la zone et/ou utiliser une ventilation forcée au
niveau de l’arc pour l’évacuation des fumées et des gaz de
soudage. Pour déterminer la bonne ventilation, il est recommandé
de procéder à un prélèvement pour la composition et la quantité de
fumées et de gaz auxquelles est exposé le personnel.
D Si la ventilation est médiocre, porter un respirateur anti-vapeurs
approuvé.
D Lire et comprendre les fiches de données de sécurité et les instructions du fabricant concernant les adhésifs, les revêtements, les
nettoyants, les consommables, les produits de refroidissement, les
dégraisseurs, les flux et les métaux.
D Travailler dans un espace fermé seulement s’il est bien ventilé ou
en portant un respirateur à alimentation d’air. Demander toujours à
un surveillant dûment formé de se tenir à proximité. Des fumées et
des gaz de soudage peuvent déplacer l’air et abaisser le niveau
d’oxygène provoquant des blessures ou des accidents mortels.
S’assurer que l’air de respiration ne présente aucun danger.
D Ne pas souder dans des endroits situés à proximité d’opérations
de dégraissage, de nettoyage ou de pulvérisation. La chaleur et
les rayons de l’arc peuvent réagir en présence de vapeurs et former des gaz hautement toxiques et irritants.
D Ne pas souder des métaux munis d’un revêtement, tels que l’acier
galvanisé, plaqué en plomb ou au cadmium à moins que le revêtement n’ait été enlevé dans la zone de soudure, que l’endroit soit
bien ventilé, et en portant un respirateur à alimentation d’air. Les
revêtements et tous les métaux renfermant ces éléments peuvent
dégager des fumées toxiques en cas de soudage.
LES RAYONS DE L’ARC peuvent
provoquer des brûlures dans les
yeux et sur la peau.
Le rayonnement de l’arc du procédé de soudage génère
des rayons visibles et invisibles intenses (ultraviolets e
infrarouges) susceptibles de provoquer des brûlures dans les yeux et sur la
peau. Des étincelles sont projetées pendant le soudage.
D Porter un casque de soudage approuvé muni de verres filtrants
approprié pour protéger visage et yeux pour protéger votre visage
et vos yeux pendant le soudage ou pour regarder (voir ANSI Z49.1
et Z87.1 énuméré dans les normes de sécurité).
D Porter des lunettes de sécurité avec écrans latéraux même sous
votre casque.
D Avoir recours à des écrans protecteurs ou à des rideaux pour
protéger les autres contre les rayonnements les éblouissements
et les étincelles ; prévenir toute personne sur les lieux de ne pas
regarder l’arc.
D Porter un équipement de protection pour le corps fait d’un matériau
résistant et ignifuge (cuir, coton robuste, laine). La protection du
corps comporte des vêtements sans huile comme par ex. des
gants de cuir, une chemise solide, des pantalons sans revers, des
chaussures hautes et une casquette.
LE SOUDAGE peut provoquer un
incendie ou une explosion.
Le soudage effectué sur des conteneurs fermés tels
que des réservoirs, tambours ou des conduites peut
provoquer leur éclatement. Des étincelles peuvent
être projetées de l’arc de soudure. La projection d’étincelles, des
pièces chaudes et des équipements chauds peut provoquer des incendies et des brûlures. Le contact accidentel de l’électrode avec des
objets métalliques peut provoquer des étincelles, une explosion, un surchauffement ou un incendie. Avant de commencer le soudage, vérifier
et s’assurer que l’endroit ne présente pas de danger.
OM-230693 Page 6
D Déplacer toutes les substances inflammables à une distance de
10,7 m de l’arc de soudage. En cas d’impossibilité les recouvrir
soigneusement avec des protections homologués.
D Ne pas souder dans un endroit là où des étincelles peuvent tomber
sur des substances inflammables.
D Se protéger et d’autres personnes de la projection d’étincelles et
de métal chaud.
D Des étincelles et des matériaux chauds du soudage peuvent
facilement passer dans d’autres zones en traversant de petites
fissures et des ouvertures.
D Surveiller tout déclenchement d’incendie et tenir un extincteur à
proximité.
D Le soudage effectué sur un plafond, plancher, paroi ou séparation
peut déclencher un incendie de l’autre côté.
D Ne pas couper ou souder des jantes ou des roues. Les pneus
peuvent exploser s’ils sont chauffés. Les jantes et les roues réparées peuvent défaillir. Voir OSHA 29 CFR 1910.177 énuméré dans
les normes de sécurité.
D Ne pas effectuer le soudage sur des conteneurs fermés tels que
des réservoirs, tambours, ou conduites, à moins qu’ils n’aient été
préparés correctement conformément à AWS F4.1 et AWS A6.0
(voir les Normes de Sécurité).
D Ne pas souder là où l’air ambiant pourrait contenir des poussières,
gaz ou émanations inflammables (vapeur d’essence, par exemple).
D Brancher le câble de masse sur la pièce le plus près possible de la
zone de soudage pour éviter le transport du courant sur une
longue distance par des chemins inconnus éventuels en provoquant des risques d’électrocution, d’étincelles et d’incendie.
D Ne pas utiliser le poste de soudage pour dégeler des conduites gelées.
D En cas de non utilisation, enlever la baguette d’électrode du porteélectrode ou couper le fil à la pointe de contact.
D Porter un équipement de protection pour le corps fait d’un matériau
résistant et ignifuge (cuir, coton robuste, laine). La protection du
corps comporte des vêtements sans huile comme par ex. des
gants de cuir, une chemise solide, des pantalons sans revers, des
chaussures hautes et une casquette.
D Avant de souder, retirer toute substance combustible de vos poches telles qu’un allumeur au butane ou des allumettes.
D Une fois le travail achevé, assurez−vous qu’il ne reste aucune
trace d’étincelles incandescentes ni de flammes.
D Utiliser exclusivement des fusibles ou coupe−circuits appropriés.
Ne pas augmenter leur puissance; ne pas les ponter.
D Suivre les recommandations dans OSHA 1910.252(a)(2)(iv) et
NFPA 51B pour les travaux à chaud et avoir de la surveillance et un
extincteur à proximité.
D Lire et comprendre les fiches de données de sécurité et les instructions du fabricant concernant les adhésifs, les revêtements, les
nettoyants, les consommables, les produits de refroidissement,
les dégraisseurs, les flux et les métaux.
DES PIECES DE METAL ou DES
SALETES peuvent provoquer des
blessures dans les yeux.
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 métalliques volantes. Pendant la période de refroidissement des soudures, elles risquent de projeter du laitier.
D Porter des lunettes de sécurité avec écrans latéraux ou un écran
facial.
LES ACCUMULATIONS DE GAZ
risquent de provoquer des blessures
ou même la mort.
D Fermer l’alimentation du gaz comprimé en cas
de non utilisation.
D Veiller toujours à bien aérer les espaces confinés ou se servir d’un
respirateur d’adduction d’air homologué.
Les CHAMPS ÉLECTROMAGNÉTIQUES (CEM)
peuvent affecter les implants médicaux.
D Les porteurs de stimulateurs cardiaques et
autres implants médicaux doivent rester à
distance.
D Les porteurs d’implants médicaux doivent consulter leur médecin
et le fabricant du dispositif avant de s’approcher de la zone où se
déroule du soudage à l’arc, du soudage par points, du gougeage,
de la découpe plasma ou une opération de chauffage par
induction.
LE BRUIT peut endommager l’ouïe.
Le bruit des processus et des équipements peut
affecter l’ouïe.
D Porter des protections approuvées pour les
oreilles si le niveau sonore est trop élevé.
LES BOUTEILLES peuvent exploser
si elles sont endommagées.
Les bouteilles de gaz comprimé contiennent du
gaz sous haute pression. Si une bouteille est
endommagée, elle peut exploser. Du fait que
les bouteilles de gaz font normalement partie du procédé de
soudage, les manipuler avec précaution.
D Protéger les bouteilles de gaz comprimé d’une chaleur excessive,
des chocs mécaniques, des dommages physiques, du laitier, des
flammes ouvertes, des étincelles et des arcs.
D Placer les bouteilles debout en les fixant dans un support stationnaire ou dans un porte-bouteilles pour les empêcher de tomber ou
de se renverser.
D Tenir les bouteilles éloignées des circuits de soudage ou autres
circuits électriques.
D Ne jamais placer une torche de soudage sur une bouteille à gaz.
D Une électrode de soudage ne doit jamais entrer en contact avec
une bouteille.
D Ne jamais souder une bouteille pressurisée − risque d’explosion.
D Utiliser seulement des bouteilles de gaz comprimé, régulateurs,
tuyaux et raccords convenables pour cette application spécifique;
les maintenir ainsi que les éléments associés en bon état.
D Tourner le dos à la sortie de vanne lors de l’ouverture de la vanne
de la bouteille. Ne pas se tenir devant ou derrière le régulateur lors
de l’ouverture de la vanne.
D Le couvercle du détendeur doit toujours être en place, sauf lorsque
la bouteille est utilisée ou qu’elle est reliée pour usage ultérieur.
D Utilisez les équipements corrects, les bonnes procédures et suffisamment de personnes pour soulever, déplacer et transporter les
bouteilles.
D Lire et suivre les instructions sur les bouteilles de gaz comprimé,
l’équipement connexe et le dépliant P-1 de la CGA (Compressed Gas
Association) mentionné dans les principales normes de sécurité.
2-3. Dangers supplémentaires en relation avec l’installation, le fonctionnement et la maintenance
Risque D’INCENDIE OU D’EXPLOSION.
D Ne pas placer l’appareil sur, au-dessus ou
à proximité de surfaces inflammables.
D Ne pas installer l’appareil à proximité de produits inflammables.
D Ne pas surcharger l’installation électrique − s’assurer que
l’alimentation est correctement dimensionnée et protégée avant
de mettre l’appareil en service.
LA CHUTE DE L’ÉQUIPEMENT peut
provoquer des blessures.
D Utiliser l’anneau de levage uniquement pour
soulever l’appareil, NON PAS les chariots, les
bouteilles de gaz ou tout autre accessoire.
D Utilisez les procédures correctes et des équipements d’une capacité appropriée pour soulever et supporter l’appareil.
D En utilisant des fourches de levage pour déplacer l’unité, s’assurer
que les fourches sont suffisamment longues pour dépasser du
côté opposé de l’appareil.
D Tenir l’équipement (câbles et cordons) à distance des véhicules
mobiles lors de toute opération en hauteur.
D Suivre les consignes du Manuel des applications pour l’équation
de levage NIOSH révisée (Publication Nº94–110) lors du levage
manuelle de pièces ou équipements lourds.
L’EMPLOI EXCESSIF peut
SURCHAUFFER L’ÉQUIPEMENT.
D Prévoir une période de refroidissement ; respecter le cycle opératoire nominal.
D Réduire le courant ou le facteur de marche
avant de poursuivre le soudage.
D Ne pas obstruer les passages d’air du poste.
LES ÉTINCELLES PROJETÉES
peuvent provoquer des blessures.
D Porter un écran facial pour protéger le visage et
les yeux.
D Affûter l’électrode au tungstène uniquement à
la meuleuse dotée de protecteurs. Cette manœuvre est à exécuter dans un endroit sûr lorsque l’on porte l’équipement homologué de protection du visage, des mains et du corps.
D Les étincelles risquent de causer un incendie − éloigner toute
substance inflammable.
LES CHARGES ÉLECTROSTATIQUES peuvent endommager les circuits imprimés.
D Établir la connexion avec la barrette de terre
avant de manipuler des cartes ou des pièces.
D Utiliser des pochettes et des boîtes antistatiques pour stocker, déplacer ou expédier des cartes de circuits imprimes.
Les PIÈCES MOBILES peuvent
causer des blessures.
D Ne pas s’approcher des organes mobiles.
D Ne pas s’approcher des points de coincement
tels que des rouleaux de commande.
LES FILS DE SOUDAGE peuvent
provoquer des blessures.
D Ne pas appuyer sur la gâchette avant d’en
avoir reçu l’instruction.
D Ne pas diriger le pistolet vers soi, d’autres
personnes ou toute pièce mécanique en engageant le fil de
soudage.
L’EXPLOSION DE LA BATTERIE
peut provoquer des blessures.
D Ne pas utiliser l’appareil de soudage pour
charger des batteries ou faire démarrer des
véhicules à l’aide de câbles de démarrage,
sauf si l’appareil dispose d’une fonctionnalité
de charge de batterie destinée à cet usage.
Les PIÈCES MOBILES peuvent
causer des blessures.
D S’abstenir de toucher des organes mobiles tels
que des ventilateurs.
D Maintenir fermés et verrouillés les portes,
panneaux, recouvrements et dispositifs de protection.
D Lorsque cela est nécessaire pour des travaux d’entretien et de dépannage, faire retirer les portes, panneaux, recouvrements ou
dispositifs de protection uniquement par du personnel qualifié.
D Remettre les portes, panneaux, recouvrements ou dispositifs de
protection quand l’entretien est terminé et avant de rebrancher
l’alimentation électrique.
OM-230693 Page 7
LIRE LES INSTRUCTIONS.
D Lire et appliquer les instructions sur les
étiquettes et le Mode d’emploi avant l’installation, l’utilisation ou l’entretien de l’appareil.
Lire les informations de sécurité au début du
manuel et dans chaque section.
D Effectuer régulièrement le contrôle et l’entretien de l’installation.
D Maintenir soigneusement fermés les portes et les panneaux des
sources de haute fréquence, maintenir les éclateurs à une distance correcte et utiliser une terre et un blindage pour réduire les
interférences éventuelles.
LE SOUDAGE À L’ARC risque de
provoquer des interférences.
D N’utiliser que les pièces de rechange recommandées par le
constructeur.
D L’énergie électromagnétique risque de
provoquer des interférences pour l’équipement
électronique sensible tel que les ordinateurs et
l’équipement commandé par ordinateur tel que
les robots.
D Effectuer l’installation, l’entretien et toute intervention selon les
manuels d’utilisateurs, les normes nationales, provinciales et de
l’industrie, ainsi que les codes municipaux.
LE
RAYONNEMENT
HAUTE
FRÉQUENCE
(H.F.)
risque
de
provoquer des interférences.
D Le rayonnement haute fréquence (H.F.) peut
provoquer des interférences avec les équipements de radio−navigation et de communication, les services
de sécurité et les ordinateurs.
D Demander seulement à des personnes qualifiées familiarisées avec
des équipements électroniques de faire fonctionner l’installation.
D L’utilisateur est tenu de faire corriger rapidement par un électricien
qualifié les interférences résultant de l’installation.
D Si le FCC signale des interférences, arrêter immédiatement l’appareil.
D Veiller à ce que tout l’équipement de la zone de soudage soit compatible électromagnétiquement.
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).
D Veiller à souder à une distance de 100 mètres de tout équipement
électronique sensible.
D Veiller à ce que ce poste de soudage soit posé et mis à la terre
conformément à ce mode d’emploi.
D En cas d’interférences après avoir pris les mesures précédentes,
il incombe à l’utilisateur de prendre des mesures supplémentaires
telles que le déplacement du poste, l’utilisation de câbles blindés,
l’utilisation de filtres de ligne ou la pose de protecteurs dans la zone
de travail.
2-4. Proposition californienne 65 Avertissements
AVERTISSEMENT : ce produit peut vous exposer à des produits chimiques tels que le plomb, reconnus par l’État de
Californie comme cancérigènes et sources de malformations
ou d’autres troubles de la reproduction.
Pour plus d’informations, consulter www.P65Warnings.ca.gov.
2-5. Principales normes de sécurité
Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1,
is available as a free download from the American Welding Society at
http://www.aws.org or purchased from Global Engineering Documents
(phone: 1-877-413-5184, website: www.global.ihs.com).
Safe Practices for the Preparation of Containers and Piping for Welding
and Cutting, American Welding Society Standard AWS F4.1, from Global
Engineering Documents (phone: 1-877-413-5184, website: www.global.ihs.com).
Safe Practices for Welding and Cutting Containers that have Held Combustibles, American Welding Society Standard AWS A6.0, from Global
Engineering Documents (phone: 1-877-413-5184,
website: www.global.ihs.com).
National Electrical Code, NFPA Standard 70, from National Fire Protection Association, Quincy, MA 02169 (phone: 1-800-344-3555, website:
www.nfpa.org and www. sparky.org).
Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,
from Compressed Gas Association, 14501 George Carter Way, Suite
103, Chantilly, VA 20151 (phone: 703-788-2700, website:www.cganet.com).
Safety in Welding, Cutting, and Allied Processes, CSA Standard W117.2,
from Canadian Standards Association, Standards Sales, 5060 Spec-
trum Way, Suite 100, Mississauga, Ontario, Canada L4W 5NS (phone:
800-463-6727, website: www.csagroup.org).
Safe Practice For Occupational And Educational Eye And Face Protection, ANSI Standard Z87.1, from American National Standards Institute,
25 West 43rd Street, New York, NY 10036 (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,
Quincy, MA 02169 (phone: 1-800-344-3555, website: www.nfpa.org).
OSHA, Occupational Safety and Health Standards for General Industry,
Title 29, Code of Federal Regulations (CFR), Part 1910.177 Subpart N,
Part 1910 Subpart Q, and Part 1926, Subpart J, from U.S. Government
Printing Office, Superintendent of Documents, P.O. Box 371954, Pittsburgh, PA 15250-7954 (phone: 1-866-512-1800) (there are 10 OSHA
Regional Offices—phone for Region 5, Chicago, is 312-353-2220, website: www.osha.gov).
Applications Manual for the Revised NIOSH Lifting Equation, The National Institute for Occupational Safety and Health (NIOSH), 1600 Clifton Rd,
Atlanta, GA 30329-4027 (phone: 1-800-232-4636, website:
www.cdc.gov/NIOSH).
2-6. Informations relatives aux CEM
Le courant électrique qui traverse tout conducteur génère des champs
électromagnétiques (CEM) à certains endroits. Le courant issu d’un
soudage à l’arc (et de procédés connexes, y compris le soudage par
points, le gougeage, le découpage plasma et les opérations de
chauffage par induction) crée un champ électromagnétique (CEM)
autour du circuit de soudage. Les champs électromagnétiques produits
peuvent causer interférence à certains implants médicaux, p. ex. les
stimulateurs cardiaques. Des mesures de protection pour les porteurs
d’implants médicaux doivent être prises: Limiter par exemple tout accès
aux passants ou procéder à une évaluation des risques individuels pour
les soudeurs. Tous les soudeurs doivent appliquer les procédures
suivantes pour minimiser l’exposition aux CEM provenant du circuit de
soudage:
1. Rassembler les câbles en les torsadant ou en les attachant avec
du ruban adhésif ou avec une housse.
2. Ne pas se tenir au milieu des câbles de soudage. Disposer les
OM-230693 Page 8
câbles d’un côté et à distance de l’opérateur.
3. Ne pas courber et ne pas entourer les câbles autour de votre
corps.
4. Maintenir la tête et le torse aussi loin que possible du matériel du
circuit de soudage.
5. Connecter la pince sur la pièce aussi près que possible de la
soudure.
6. Ne pas travailler à proximité d’une source de soudage, ni
s’asseoir ou se pencher dessus.
7. Ne pas souder tout en portant la source de soudage ou le
dévidoir.
En ce qui concerne les implants médicaux :
Les porteurs d’implants doivent d’abord consulter leur médecin avant
de s’approcher des opérations de soudage à l’arc, de soudage par points,
de gougeage, du coupage plasma ou de chauffage par induction. Si le
médecin approuve, il est recommandé de suivre les procédures précédentes.
. A complete Parts List is available at www.MillerWelds.com
SECTION 3 − DEFINITIONS
3-1. Symbols And Definitions
X
Duty Cycle
Do Not Switch
While Welding
Increase
On
Off
Gas Metal Arc
Welding (GMAW)
Gun
Wire Feed Spool
Gun
Gas Input
Gas Output
Voltage Input
Press To Reset
Wire Feed
Output
Volts
V
U0
Rated No-Load
Voltage (Average)
SECTION 4 − SPECIFICATIONS
4-1. Power Source Specifications
Rated Output
250 A at 28 VDC,
40% Duty Cycle
200 A at 28 VDC,
60% Duty Cycle
Max. Open Circuit
Voltage
38
Wire Type and Diameter
Solid Steel
Stainless Steel
Flux Cored
.023 − .045 in.
(0.6 − 1.2 mm)
.023 − .045 in.
(0.6 − 1.2 mm)
.030 − .045 in.
(0.8 − 1.2 mm)
Amps Input at Rated Output (60% Duty Cycle), 60 Hz, Single-Phase
200 (208) V
230 V
460 V
575 V
KVA
KW
48
2.3*
46
2*
23
1*
18
0.8*
9.8
0.46*
7.5
0.13*
Wire Feed Speed
Dimensions
Net Weight Without Gun
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)
* While idling
Operating Temperature Range − −20C to +40C
Storage Temperature Range − -30C to + 50C
OM-230 693 Page 9
. A complete Parts List is available at www.MillerWelds.com
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.
WELD AMPERES
500
450
400
350
300
If unit overheats, Thermistor (RT1)
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
6 Minutes Welding
40% Duty Cycle At 250 Amperes
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
40
Normal Volt-Ampere Curves
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.
35
30
25
Volts
1
20
Volt min
Volt max
15
10
5
0
0
50
100
150
200
Amperes
OM-230 693 Page 10
250
300
350
ssb1.1 10/91 − 239 342
. A complete Parts List is available at www.MillerWelds.com
SECTION 5 − INSTALLATION
5-1. Serial Number And Rating Label Location
The serial number and rating information for this product is located on back. Use rating label to determine input power requirements and/or rated output.
For future reference, write serial number in space provided on back cover of this manual.
5-2. Selecting A Location
1
Line Disconnect Device
Locate unit near correct input
power supply.
!
Tipping
!
Do not move or operate
unit where it could tip.
Special installation may be
required where gasoline or
volatile liquids are present −
see NEC Article 511 or CEC
Section 20.
Location
1
18 in.
(460 mm)
18 in.
(460 mm)
loc_2 3/96 - Ref. 804 912-A
OM-230 693 Page 11
. A complete Parts List is available at www.MillerWelds.com
5-3. Weld Output Terminals And Selecting Cable Sizes
NOTICE − The Total Cable Length in Weld Circuit (see table below) is the combined length of both weld cables. For example, if the power source is
100 ft (30 m) from the workpiece, the total cable length in the weld circuit is 200 ft (2 cables x 100 ft). Use the 200 ft (60 m) column to determine cable
size.
Weld Cable Size** and Total Cable (Copper) Length in Weld Circuit
Not Exceeding***
Weld Output
Terminals
!
Turn off power before connecting to
weld output terminals.
!
Do not use worn,
damaged,
undersized, or poorly
spliced cables.
100 ft (30 m) or Less
Negative
(−)
804 909-A
* This
200 ft
(60 m)
250 ft
(70 m)
300 ft
(90 m)
350 ft
400 ft
(105 m) (120 m)
10 − 60%
Duty
Cycle
60 − 100%
Duty
Cycle
AWG (mm2)
AWG (mm2)
100
4 (20)
4 (20)
4 (20)
3 (30)
2 (35)
1 (50)
1/0 (60)
1/0 (60)
150
3 (30)
3 (30)
2 (35)
1 (50)
1/0 (60)
2/0 (70)
3/0 (95)
3/0 (95)
200
3 (30)
2 (35)
1 (50)
1/0 (60)
2/0 (70)
3/0 (95)
4/0 (120)
4/0 (120)
250
2 (35)
1 (50)
1/0 (60)
2/0 (70)
3/0 (95)
4/0 (120)
2 ea. 2/0
(2x70)
2 ea. 2/0
(2x70)
300
1 (50)
1/0 (60)
2/0 (70)
3/0 (95)
4/0 (120)
2 ea. 2/0
(2x70)
2 ea. 3/0
(2x95)
2 ea. 3/0
(2x95)
350
1/0 (60)
2/0 (70)
3/0 (95)
4/0 (120)
2 ea. 2/0
(2x70)
2 ea. 3/0
(2x95)
2 ea. 3/0
(2x95)
2 ea. 4/0
(2x120)
Welding
Amperes
Positive
(+)
150 ft
(45 m)
10 − 100% Duty Cycle
AWG (mm2)
chart is a general guideline and may not suit all applications. If cable overheats, use next size larger cable.
**Weld cable size (AWG) is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere.
( ) = mm2 for metric use
***For distances longer than those shown in this guide, see AWS Fact Sheet No. 39, Welding Cables, available from the American Welding
Society at http://www.aws.org.
Ref. S-0007-M 2017−08
OM-230 693 Page 12
. A complete Parts List is available at www.MillerWelds.com
5-4. Connecting To Weld Output Terminals
4
1
Do not place
anything between
weld cable terminal
and copper bar.
2
Tools Needed:
3
3/4 in. (19 mm)
803 778-A
Correct Installation
!
Turn off power before connecting to
weld output terminals.
!
Failure to properly connect weld
cables may cause excessive heat
and start a fire, or damage your machine.
Incorrect Installation
1 Weld Output Terminal
2 Supplied Weld Output Terminal Nut
3 Weld Cable Terminal
4 Copper Bar
Remove supplied nut from weld output
terminal. Slide weld cable terminal onto
weld 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.
5-5. 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
. A complete Parts List is available at www.MillerWelds.com
5-6. 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/flowmeter.
. Two
2
3
1
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.
5
3
4
Tools Needed:
3/4, 5/8 in.
OM-230 693 Page 14
804 910-A
. A complete Parts List is available at www.MillerWelds.com
5-7. Connecting XR Aluma-Pro, XR Edge, XR-A Gun, Or XR-A Python
.
1
2
3
XR Edge guns prior to serial no.
LE079101 require an adapter
cord (part no. 195 498).
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
3/32 in.
(2.4 mm)
4
Be sure to change drive rolls to the
proper size and type.
5
2
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.
Gun Trigger Plug
Insert plug into receptacle, and
tighten threaded collar.
3
. If Aluma-Pro push/pull gun has
a listed SUP value, set the
power source to match the
SUP value (see Section 6-5).
.
Be sure to trim liner to proper extension.
1
5
Ref. 804 910-A / 804 936-A
OM-230 693 Page 15
. A complete Parts List is available at www.MillerWelds.com
5-8. Setting Gun Polarity For Wire Type
Changing Polarity
Wire Drive
Assembly Lead
1
Polarity Changeover Label
Information
Always read and follow manufacture’s
recommended polarity.
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
5-9. Installing Gas Supply
Tools Needed:
1
Obtain gas cylinder and chain to
running gear, wall, or other
stationary support so cylinder
cannot fall and break off valve.
2
1
Cap
2
Cylinder Valve
1-1/8, 5/8 in.
3
4
7
Remove cap, stand to side of
valve, and open valve slightly. Gas
flow blows dust and dirt from valve.
Close valve.
Argon Gas Or Mixed Gas
1
5
2
3
8
9
CO2 Gas
3
Cylinder
4
Regulator/Flowmeter
Install so face is vertical.
5
Regulator/Flowmeter Gas
Hose Connection
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.
7
Flow Adjust
Typical flow rate is 20 cfh (cubic
feet per hour). Check wire
manufacturer’s
recommended
flow rate.
8
6
9
CO2 Adapter (Customer
Supplied)
O-Ring (Customer Supplied)
Install adapter with O-ring between
regulator/flowmeter and CO2
cylinder.
Rear Panel
Ref. 804 654-A / Ref. 804 912-A
OM-230 693 Page 16
. A complete Parts List is available at www.MillerWelds.com
5-10. 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.
Installing 1 Or 2 lb Wire Spool
Spindle
Install these
components
onto spindle.
Spindle
To install either a 1 lb or 2 lb wire
spool, follow the procedure as
shown in the illustration.
Order extra spring
Part No. 186 437
Remove these
components
from spindle.
Tools Needed:
15/16 in.
072573-B / 802 922
5-11. Positioning Jumper Links
Check input voltage available at
site.
Tools Needed:
1
3/8 in.
Jumper Links Access Door
Open door.
2
200VOLTS
3
230VOLTS
153980-D
230VOLTS 460VOLTS 575VOLTS
3
144916-E
Jumper Link Label
Check label − only one is on unit.
Input Voltage Jumper Links
Move jumper links to match input
voltage.
Close and secure access door.
2
1
153 980-D / 144 916-E / 804 911-A
OM-230 693 Page 17
. A complete Parts List is available at www.MillerWelds.com
5-12. Electrical Service Guide
Failure to follow these electrical service guide recommendations could create an electric shock or fire hazard. These recommendations are for a dedicated branch circuit sized for the rated output and duty cycle of the welding power source.
60 Hz Single Phase
Input Voltage (V)
200
230
400
460
575
Input Amperes (A) At Rated Output
48
46
24
23
18
Time-Delay Fuses 2
60
50
30
25
20
3
70
60
35
30
25
8
8
12
12
14
96
(29)
127
(39)
156
(47)
206
(63)
209
(64)
8
10
12
12
14
Max Recommended Standard Fuse Rating In Amperes 1
Normal Operating Fuses
Min Input Conductor Size In AWG 4
Max Recommended Input Conductor Length In Feet (Meters)
Min Grounding Conductor Size In AWG 4
Elec Serv 2011−04
Reference: 2011 National Electrical Code (NEC) (including article 630)
1 If a circuit breaker is used in place of a fuse, choose a circuit breaker with time-current curves comparable to the recommended fuse.
2 “Time-Delay” fuses are UL class “RK5” . See UL 248.
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
310.15(B)(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
. A complete Parts List is available at www.MillerWelds.com
5-13. Connecting Input Power
1
5
=GND/PE Earth Ground
9
4
6
L1
L2
8
7
3
1
2
L2
L1
230 VAC, 1
804 912-A
!
Installation must meet all National
and Local Codes − have only qualified
persons make this installation.
!
Disconnect and lockout/tagout input
power before connecting input conductors from unit.
!
Always connect green or green/yellow conductor to supply grounding
terminal first, and never to a line terminal.
See rating label on unit and check input voltage available at site.
1
Plug (NEMA Type 6-50P)
2
3
Receptacle
[NEMA Type 6-50R (Customer
Supplied)]
Input Power Cord.
Connect directly to line disconnect device if
hard wiring is required.
4
5
6
7
8
Disconnect Device (switch shown in
the OFF position)
Disconnect Device Grounding Terminal
Disconnect Device Line Terminals
Black And White Input Conductor (L1
And L2)
Green Or Green/Yellow Grounding
Conductor
Connect green or green/yellow grounding
conductor to disconnect device grounding
terminal first.
Connect input conductors L1 and L2 to
disconnect device line terminals.
9
Over-Current Protection
Select type and size of over-current
protection using Section 5-12 (fused
disconnect switch shown).
Connect plug to receptacle if hard wiring
method is not used.
Close and secure door on disconnect device.
Remove lockout/tagout device, and place
switch in the On position.
OM-230 693 Page 19
. A complete Parts List is available at www.MillerWelds.com
5-14. Threading Welding Wire
1
2
3
4
5
6
7
4
Wire Spool
Welding Wire
Inlet Wire Guide
Pressure Adjustment Knob
Drive Roll
Outlet Wire Guide
Gun Conduit Cable
Lay gun cable out straight.
7
1
Tools Needed:
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.
. Use pressure indicator
Tighten
scale to set a desired
drive roll pressure.
1
2
3
4
Close and tighten pressure
assembly, and let go of wire.
Push wire thru guides into gun;
continue to hold wire.
Pressure
Indicator
Scale
Remove gun nozzle and contact tip.
Turn On.
Tighten
WOOD
Press gun trigger until wire
comes out of gun. Reinstall
contact tip and nozzle
OM-230 693 Page 20
1
2
3
4
Feed wire to check drive roll pressure.
Tighten knob enough to prevent slipping.
Cut off wire. Close
and latch door.
Ref. 804 913-A
. A complete Parts List is available at www.MillerWelds.com
Notes
OM-230 693 Page 21
. A complete Parts List is available at www.MillerWelds.com
5-15. Weld Parameters
OM-230 693 Page 22
. A complete Parts List is available at www.MillerWelds.com
226 650-B
OM-230 693 Page 23
. A complete Parts List is available at www.MillerWelds.com
SECTION 6 − OPERATION
6-1. Controls
1
Voltage Control
Turn control clockwise to increase
voltage.
2
Wire Speed Control
Turn control clockwise to increase wire
feed speed.
3
4
4
3
1
Voltmeter
Wire Feed Speed Meter
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
. A complete Parts List is available at www.MillerWelds.com
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 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.
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%
which is recommended for most wire sizes
and types.
Spool Gun Run−in is factory set at 50%
which is recommended for .030 & .035
wire. A Run−in setting of 25% is
recommended for .047 wire.
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
trigger and pull the trigger again
momentarily (one second).
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
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 change the Run−in value,
release the trigger and turn the wire feed
control 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
momentarily (one second).
OM-230 693 Page 25
. A complete Parts List is available at www.MillerWelds.com
6-2. Voltmeter And Wire Feed Speed Meter Operation
1
1
Voltmeter
Welding Status
2
Wire Feed Speed Meter
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.
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).
2
Gun Selection
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
retained by 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.
6-3. 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
welding. 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
. A complete Parts List is available at www.MillerWelds.com
6-4. Timers
4
3
1
1
Voltage Control
2
Wire Speed Control
3
Voltmeter
4
Wire Feed Speed Meter
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.
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.
The following items can be adjusted by
rotating the left knob clockwise (CW):
2
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).
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.
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.
Burnback (Bur) − The amount of time that
the welding wire remains electrically energized 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.
“Stitch” Timer (dLY) − Used in
conjunction 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.
To save settings and exit the TIMERS
menu, depress the gun trigger.
OM-230 693 Page 27
. A complete Parts List is available at www.MillerWelds.com
. Welding wire birdnesting at the welding power source drive rolls may occur if this value is set too high.
6-5. Set Up Push Motor Torque (SUP) Or Reset (rES)
4
3
1
1 Voltage Control
2 Wire Speed Control
3 Voltmeter
4 Wire Feed Speed Meter
Depress the gun trigger while turning on
the power switch until the left meter
displays (run).
Rotate the left knob counterclockwise
(CCW) to find the particular item, and rotate
the right knob to change the setting.
OM-230 693 Page 28
2
The following items can be adjusted by
rotating the left knob counterclockwise
(CCW):
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
over-torque limit 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.
To save settings and exit the (SUP) menu,
depress the gun trigger.
Reset (rES) − Rotate the right knob to
select ON. Press and release gun trigger to
reset system to factory default values.
. A complete Parts List is available at www.MillerWelds.com
SECTION 7 − MAINTENANCE &TROUBLESHOOTING
7-1. Routine Maintenance
!
n = Check
Z = Change
~ = Clean
* To be done by Factory Authorized Service Agent
Disconnect power
before maintaining.
. Maintain more often
during severe conditions.
l = Replace
Reference
Every
3
Months
l Unreadable Labels
Every
6
Months
~ Weld Terminals
nl Weld Cables
n Apply Light Coat Of Oil
Or Grease To Drive Motor
Shaft
~ Clean Drive Rolls
OR
~ Inside Unit
7-2. Unit Overload
Thermistor RT1 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.
7-3. Changing Drive Roll and Wire Inlet Guide
1
2
2
4
Securing Screw
Inlet Wire Guide
Loosen screw. Slide tip as close to
drive rolls as possible without
touching. Tighten screw.
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 5-14).
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
. A complete Parts List is available at www.MillerWelds.com
7-4. Aligning Drive Rolls and Wire Guide
!
Turn Off power.
View is from top of drive rolls
looking down with pressure
assembly open.
3
1
Correct
Incorrect
4
2
5
1
2
3
4
5
Drive Roll Securing Nut
Drive Roll
Wire Guide
Welding Wire
Drive Gear
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
7-5. Troubleshooting
Trouble
Remedy
No weld output; wire does not feed.
Be sure line disconnect switch is On (see Section 5-13).
Replace building line fuse or reset circuit breaker if open (see Section 5-13).
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 RT1 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, have Factory Authorized Service
Agent check for an open Thermistor RT1 (see Section 7-2).
HL.P 004 appears on meters. Reset message by releasing the trigger or removing stuck wire causing
short circuit (see Section 6-2) . 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.
No Weld Output; wire feeds.
Connect work clamp to get good metal to metal contact.
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 5-13).
Check input voltage jumper links and correct position if necessary (see Section 5-11).
Have Factory Authorized Service Agent check main control board.
Fan motor does not run.
Have Factory Authorized Service Agent check fan-on-demand circuit.
Low, high, or erratic wire speed.
Readjust front panel settings (see Section 6-1).
OM-230 693 Page 30
. A complete Parts List is available at www.MillerWelds.com
Trouble
Remedy
Low, high, or erratic wire speed.
Change to correct size drive rolls (see Section 7-3).
Readjust drive roll pressure (see Section 5-14).
Replace inlet guide, contact tip, and/or liner if necessary (see welding gun Owner’s Manual).
Check position of input jumper links (see Section 5-11).
Have Factory Authorized Service Agent check main control board.
No wire feed.
Turn Wire Speed control to higher setting (see Section 6-1).
Clear obstruction in gun contact tip or liner (see welding gun Owner’s Manual).
Readjust drive roll pressure (see Section 5-14).
Change to correct size drive rolls (see Section 7-3).
Rethread welding wire (see Section 5-14).
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 7-2).
HL.P 004 appears on meters. Reset message by releasing the trigger or removing stuck wire causing
short circuit (see Section 6-2) . 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 31
. A complete Parts List is available at www.MillerWelds.com
V
HLP
V
1
2
A
HLP
V
A
HLP
V
A
HLP
V
HLP
OM-230 693 Page 32
A
A
9
A
10
A
HLP
V
6
8
HLP
V
5
A
HLP
V
4
7
HLP
V
3
A
HLP
V
A
HLP
V
V
A
HLP
11
A
12
. A complete Parts List is available at www.MillerWelds.com
.
S
All directions are in reference to the
front of the unit. All circuitry referred to
is located inside the unit.
HLP 1
Turn off primary input power and check input
voltage per primary voltage rating of welder,
and correct if necessary. If HELP 1 persists,
this Indicates a communication error
between control board PC1 and user
interface board PC2. Contact a Service
Distributor or Factory Service Department.
S
HLP 2
Indicates overheating of unit. Unit will
shutdown until internal temperature drops
within operational range.
S
HLP 3
Indicates no open circuit voltage detected
when gun trigger is pulled and no arc
detected after 3 seconds. Turn off primary
input power and contact
a Service
Distributor or Factory Service Department.
S
HLP 4
Indicates gun trigger was pulled and held for
2 minutes without a welding arc established
or there is a direct short between contact tip
or wire and the workpiece. Release gun
trigger and clear fault condition.
S
HLP 5
Indicates a malfunction in wire feed system
and/or drive motor overcurrent condition.
Check for proper spool brake adjustment or
obstructions in wire feed system. Clean or
replace liner, wire guides, or contact tip.
S
HLP 6
Indicates a malfunction in wire feed system
and/or external drive motor overcurrent condition (spool gun or push-pull gun). Check for
proper spool brake adjustment or
obstructions in wire feed system. Clean or
replace liner, wire guides, or contact tip.
S
HLP 7
Indicates spool gun trigger was pulled and
held for 2 minutes without a welding arc
established.
S
HLP 8
Indicates XR Edge gun trigger was pulled
and held for 2 minutes without a welding arc
established.
S
HLP 9
Indicates XR-A gun trigger was pulled and
held for 2 minutes without a welding arc
established.
S
HLP 10
Indicates Python gun trigger was pulled and
held for 2 minutes without a welding arc
established.
S
HLP 11
Indicates a communication error between
control board PC1 and user interface board
PC2. Contact Factory Service Department.
S
HLP 12
Indicates Aluma-Pro gun trigger was pulled
and held for 2 minutes without a welding arc
established.
SC-187 212-A
OM-230 693 Page 33
SECTION 8 − ELECTRICAL DIAGRAM
Figure 8-1. Circuit Diagram
OM-230 693 Page 34
243035-C
OM-230 693 Page 35
SECTION 9 − MIG WELDING (GMAW) GUIDELINES
mig1 2009−12
9-1. 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
Ref. 801 909-A
OM-230 693 Page 36
9-2. 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 0.125 in.
Convert Material
Thickness to
Amperage (A)
(0.001 in. = 1 ampere)
0.125 in. = 125 A
.035 in
Wire
Size
Wire Size
Amperage Range
0.023 in.
30 − 90 A
0.030 in.
40 − 145 A
0.035 in.
50 − 180 A
Recommendation
Wire Speed
(Approx.)
0.023 in.
3.5 in. per ampere
3.5 x 125 A = 437 ipm
0.030 in.
2 in. per ampere
2 x 125 A = 250 ipm
0.035 in.
1.6 in. per ampere
1.6 x 125 A = 200 ipm
Select Wire Size
Select Wire Speed
(Amperage)
125 A based on 1/8 in.
material thickness
ipm = inches 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
9-3. Holding And Positioning Welding Gun
. Welding wire is energized when gun trigger is pressed. Before lowering helmet and pressing trigger, be sure wire is no more than 1/2 in. (13 mm)
past end of nozzle, and tip of wire is positioned correctly on seam.
1
1
3
2
2
3
4
5
5
Hold Gun and Control Gun
Trigger
Workpiece
Work Clamp
Electrode Extension (Stickout)
1/4 to 1/2 in. (6 To 13 mm)
Cradle Gun and Rest Hand on
Workpiece
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
OM-230 693 Page 38
S-0421-A
9-4. 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°
Drag
Perpendicular
GUN ANGLES AND WELD BEAD PROFILES
Short
Normal
Long
ELECTRODE EXTENSIONS (STICKOUT)
Short
Normal
Long
FILLET WELD ELECTODE EXTENSIONS (STICKOUT)
Slow
Normal
GUN TRAVEL SPEED
Fast
S-0634
OM-230 693 Page 39
9-5. 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
1
2
2
3
Stringer Bead − Steady
Movement Along Seam
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
9-6.
Poor Weld Bead Characteristics
1
2
3
1
2
3
4
5
Large Spatter Deposits
Rough, Uneven Bead
Slight Crater During Welding
Bad Overlap
Poor Penetration
4
5
S-0053-A
9-7.
Good Weld Bead Characteristics
1
2
3
1
Fine Spatter
Uniform Bead
Moderate Crater During
Welding
Weld a new bead or layer for each
1/8 in. (3.2 mm) thickness in metals
being welded.
4
5
2
3
4
No Overlap
Good Penetration into Base
Metal
5
S-0052-B
OM-230 693 Page 40
9-8.
Troubleshooting − Excessive Spatter
Excessive Spatter − scattering of molten metal particles that
cool to solid form near weld bead.
S-0636
Possible Causes
Corrective Actions
Wire feed speed too high.
Select lower wire feed speed.
Voltage too high.
Select lower voltage range.
Electrode extension (stickout) too long.
Use shorter electrode extension (stickout).
Workpiece dirty.
Remove all grease, oil, moisture, rust, paint, undercoating, and dirt from work surface before welding.
Insufficient shielding gas at welding arc.
Increase flow of shielding gas at regulator/flowmeter and/or prevent drafts near welding arc.
Dirty welding wire.
Use clean, dry welding wire.
Eliminate pickup of oil or lubricant on welding wire from feeder or liner.
Incorrect polarity.
9-9.
Check polarity required by welding wire, and change to correct polarity at welding power source.
Troubleshooting − Porosity
Porosity − small cavities or holes resulting from gas pockets
in weld metal.
S-0635
Possible Causes
Insufficient shielding gas at welding arc.
Corrective Actions
Increase flow of shielding gas at regulator/flowmeter and/or prevent drafts near welding arc.
Remove spatter from gun nozzle.
Check gas hoses for leaks.
Place nozzle 1/4 to 1/2 in. (6-13 mm) from workpiece.
Hold gun near bead at end of weld until molten metal solidifies.
Wrong gas.
Use welding grade shielding gas; change to different gas.
Dirty welding wire.
Use clean, dry welding wire.
Eliminate pick up of oil or lubricant on welding wire from feeder or liner.
Workpiece dirty.
Remove all grease, oil, moisture, rust, paint, coatings, and dirt from work surface before welding.
Use a more highly deoxidizing welding wire (contact supplier).
Welding wire extends too far out of nozzle.
Be sure welding wire extends not more than 1/2 in. (13 mm) beyond nozzle.
9-10. Troubleshooting − Excessive Penetration
Excessive Penetration − weld metal melting through base metal
and hanging underneath weld.
Excessive Penetration Good Penetration
Possible Causes
Excessive heat input.
S-0639
Corrective Actions
Select lower voltage range and reduce wire feed speed.
Increase travel speed.
OM-230 693 Page 41
9-11. 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.
Material too thick. Joint preparation and design must provide access to bottom of groove while
maintaining proper welding wire extension and arc characteristics.
Improper weld technique.
Maintain normal gun angle of 0 to 15 degrees to achieve maximum penetration.
Keep arc on leading edge of weld puddle.
Be sure welding wire extends not more than 1/2 in. (13 mm) beyond nozzle.
Insufficient heat input.
Select higher wire feed speed and/or select higher voltage range.
Reduce travel speed.
Incorrect polarity.
Check polarity required by welding wire, and change to correct polarity at welding power source.
9-12. Troubleshooting − Incomplete Fusion
Incomplete Fusion − failure of weld metal to fuse completely with
base metal or a preceeding weld bead.
S-0637
Possible Causes
Corrective Actions
Workpiece dirty.
Remove all grease, oil, moisture, rust, paint, undercoating, and dirt from work surface before
welding.
Insufficient heat input.
Select higher voltage range and/or adjust wire feed speed.
Improper welding technique.
Place stringer bead in proper location(s) at joint during welding.
Adjust work angle or widen groove to access bottom during welding.
Momentarily hold arc on groove side walls when using weaving technique.
Keep arc on leading edge of weld puddle.
Use correct gun angle of 0 to 15 degrees.
9-13. Troubleshooting − Burn-Through
Burn-Through − weld metal melting completely through base metal
resulting in holes where no metal remains.
S-0640
Possible Causes
Excessive heat input.
Corrective Actions
Select lower voltage range and reduce wire feed speed.
Increase and/or maintain steady travel speed.
OM-230 693 Page 42
9-14. 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
Corrective Actions
Welding wire extends too far out of nozzle.
Be sure welding wire extends not more than 1/2 in. (13 mm) beyond nozzle.
Unsteady hand.
Support hand on solid surface or use two hands.
9-15. Troubleshooting − Distortion
Distortion − contraction of weld metal during welding that forces
base metal to move.
Base metal moves
in the direction of
the weld bead.
Possible Causes
Excessive heat input.
S-0642
Corrective Actions
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
9-16. 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
Spray Arc Steel
Short Circuiting Steel
Short Circuiting
Stainless Steel
Aluminum
X
Argon
X
Argon + 25% CO2
80% or greater Argon +
balance CO2 or Oxygen
X
X1
X
100% CO2
Tri-Mix2
X
1
Limited short circuiting use
2
90% HE + 7-1/2% AR + 2-1/2% CO2
9-17. Troubleshooting Guide For Semiautomatic Welding Equipment
Problem
Probable Cause
Wire feed motor operates, but Too little pressure on wire feed rolls.
wire does not feed.
Incorrect wire feed rolls.
Wire curling up in front of the
wire feed rolls (bird nesting).
Wire feeds, but no gas flows.
Remedy
Increase pressure setting on wire feed rolls.
Check size stamped on wire feed rolls, replace to match
wire size and type if necessary.
Wire spool brake pressure too high.
Decrease brake pressure on wire spool.
Restriction in the gun and/or assembly.
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.
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.
Replace liner.
Gas cylinder empty.
Replace empty gas cylinder.
Gas nozzle plugged.
Clean or replace gas nozzle.
Gas cylinder valve not open or flowmeter not adjusted.
Open gas valve at cylinder and adjust flow rate.
Restriction in gas line.
Check gas hose between flowmeter and wire feeder, and
gas hose in gun and cable assembly.
Loose or broken wires to gas solenoid.
Have Factory Authorized Service Agent repair wiring.
Gas solenoid valve not operating.
Have Factory Authorized Service Agent replace gas
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
Problem
Probable Cause
Remedy
Welding arc not stable.
Wire slipping in drive rolls.
Adjust pressure setting on wire feed rolls. Replace worn
drive rolls if necessary.
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
SECTION 10 − PARTS LIST
10-1. 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
Drive Roll
Part No.
Type
Inlet
Wire Guide
087 131
087 130
V-Grooved
056 192
0.8/0.9 mm
204 579
203 526
V-Grooved
056 192
.030 in.
0.8 mm
079 594
053 695
V-Grooved
056 192
.035 in.
.035 in.
0.9 mm
079 595
053 700
V-Grooved
056 192
.045 in.
.045 in.
1.2 mm
079 596
053 697
V-Grooved
056 193
Fraction
Decimal
Metric
.023/.025 in.
.023/.025 in.
0.6 mm
.030/.035 in.
.030/.035 in.
.030 in.
Kit No.
Ref. S-0026-B/7-91
A complete Parts List is available on-line at www.MillerWelds.com
OM-230 693 Page 46
Effective January 1, 2018
(Equipment with a serial number preface of MJ or newer)
Warranty Questions?
Call
1-800-4-A-MILLER
for your local
Miller distributor.
Your distributor also gives
you ...
Service
You always get the fast,
reliable response you
need. Most replacement
parts can be in your
hands in 24 hours.
Support
Need fast answers to the
tough welding questions?
Contact your distributor.
The expertise of the
distributor and Miller is
there to help you, every
step of the way.
This limited warranty supersedes all previous Miller warranties and is exclusive with no other
guarantees or warranties expressed or implied.
LIMITED WARRANTY − Subject to the terms and conditions below, 5. 6 Months — Parts
Miller Electric Mfg. LLC, Appleton, Wisconsin, warrants to its original
* Batteries
retail purchaser that new Miller equipment sold after the effective date of 6. 90 Days — Parts
this limited warranty is free of defects in material and workmanship at
* Accessory (Kits)
the time it is shipped by Miller. THIS WARRANTY IS EXPRESSLY IN
* Canvas Covers
LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,
* Induction Heating Coils and Blankets, Cables, and
INCLUDING THE WARRANTIES OF MERCHANTABILITY AND
Non-Electronic Controls
FITNESS.
* M-Guns
Within the warranty periods listed below, Miller will repair or replace any
warranted parts or components that fail due to such defects in material
* MIG Guns, Subarc (SAW) Torches, and External
or workmanship. Miller must be notified in writing within thirty (30) days
Cladding Heads
of such defect or failure, at which time Miller will provide instructions on
* Remote Controls and RFCS-RJ45
the warranty claim procedures to be followed. If notification is submitted
* Replacement Parts (No labor)
as an online warranty claim, the claim must include a detailed
* Spoolmate Spoolguns
description of the fault and the troubleshooting steps taken to identify
failed components and the cause of their failure.
Miller shall honor warranty claims on warranted equipment listed below
in the event of such a failure within the warranty time periods. All
warranty time periods start on the delivery date of the equipment to the
original end-user purchaser, and not to exceed twelve months after the
equipment is shipped to a North American distributor or eighteen
months after the equipment is shipped to an International distributor.
1.
2.
3.
4.
5 Years Parts — 3 Years Labor
* Original Main Power Rectifiers Only to Include SCRs,
Diodes, and Discrete Rectifier Modules
3 Years — Parts and Labor
* Auto-Darkening Helmet Lenses (Except Classic
Series) (No Labor)
* Engine Driven Welder/Generators
(NOTE: Engines are Warranted Separately by the
Engine Manufacturer.)
* Inverter Power Sources
* Plasma Arc Cutting Power Sources
* Process Controllers
* Semi-Automatic and Automatic Wire Feeders
* Transformer/Rectifier Power Sources
2 Years — Parts and Labor
* Auto-Darkening Helmet Lenses − Classic Series Only
(No Labor)
* Auto-Darkening Weld Masks (No Labor)
* Fume Extractors − Capture 5, Filtair 400 and Industrial
Collector Series
1 Year — Parts and Labor Unless Specified
* AugmentedArc and LiveArc Welding Systems
* Automatic Motion Devices
* Bernard BTB Air-Cooled MIG Guns (No Labor)
* CoolBelt and CoolBand Blower Unit (No Labor)
* Desiccant Air Dryer System
* External Monitoring Equipment and Sensors
* Field Options
(NOTE: Field options are covered for the remaining
warranty period of the product they are installed in,
or for a minimum of one year — whichever is
greater.)
* RFCS Foot Controls (Except RFCS-RJ45)
* Fume Extractors − Filtair 130, MWX and SWX Series
* HF Units
* ICE/XT Plasma Cutting Torches (No Labor)
* Induction Heating Power Sources, Coolers
(NOTE: Digital Recorders are Warranted
Separately by the Manufacturer.)
* Load Banks
* Motor-Driven Guns (except Spoolmate Spoolguns)
* PAPR Blower Unit (No Labor)
* Positioners and Controllers
* Racks
* Running Gear/Trailers
* Spot Welders
* Subarc Wire Drive Assemblies
* TIG Torches (No Labor)
* Tregaskiss Guns (No Labor)
* Water Cooling Systems
* Wireless Remote Foot/Hand Controls and Receivers
* Work Stations/Weld Tables (No Labor)
Miller’s True Blue® Limited Warranty shall not apply to:
1.
2.
3.
Consumable components; such as contact tips,
cutting nozzles, contactors, brushes, relays, work
station table tops and welding curtains, or parts that
fail due to normal wear. (Exception: brushes and
relays are covered on all engine-driven products.)
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.
Equipment that has been modified by any party other than
Miller, or equipment that has been improperly installed,
improperly operated or misused based upon industry
standards, or equipment which has not had reasonable
and necessary maintenance, or equipment which has
been used for operation outside of the specifications for
the equipment.
MILLER PRODUCTS ARE INTENDED FOR COMMERCIAL AND
INDUSTRIAL USERS TRAINED AND EXPERIENCED IN THE USE
AND MAINTENANCE OF WELDING EQUIPMENT.
The exclusive remedies for warranty claims are, at Miller’s option,
either: (1) repair; or (2) replacement; or, if approved in writing by
Miller, (3) the pre-approved cost of repair or replacement at an
authorized Miller service station; or (4) payment of or credit for the
purchase price (less reasonable depreciation based upon use).
Products may not be returned without Miller’s written approval.
Return shipment shall be at customer’s risk and expense.
The above remedies are F.O.B. Appleton, WI, or Miller’s authorized
service facility. Transportation and freight are the customer’s
responsibility. TO THE EXTENT PERMITTED BY LAW, THE
REMEDIES HEREIN ARE THE SOLE AND EXCLUSIVE
REMEDIES REGARDLESS OF THE LEGAL THEORY. IN NO
EVENT SHALL MILLER BE LIABLE FOR DIRECT, INDIRECT,
SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
(INCLUDING LOSS OF PROFIT) REGARDLESS OF THE LEGAL
THEORY. ANY WARRANTY NOT PROVIDED HEREIN AND ANY
IMPLIED WARRANTY, GUARANTY, OR REPRESENTATION,
INCLUDING
ANY
IMPLIED
WARRANTY
OF
MERCHANTABILITY OR FITNESS FOR PARTICULAR
PURPOSE, ARE EXCLUDED AND DISCLAIMED BY MILLER.
Some US states do not allow limiting the duration of an implied
warranty or the exclusion of certain damages, so the above
limitations may not apply to you. This warranty provides specific
legal rights, and other rights may be available depending on your
state. In Canada, some provinces provide additional warranties or
remedies, and to the extent the law prohibits their waiver, the
limitations set out above may not apply. This Limited Warranty
provides specific legal rights, and other rights may be available, but
may vary by province.
miller_warr 2018-01
Owner’s Record
Please complete and retain with your personal records.
Model Name
Serial/Style Number
Purchase Date
(Date which equipment was delivered to original customer.)
Distributor
Address
City
State
Zip
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. LLC
An Illinois Tool Works Company
1635 West Spencer Street
Appleton, WI 54914 USA
Replacement Parts
Training (Schools, Videos, Books)
Technical Manuals (Servicing Information
and Parts)
Circuit Diagrams
For International Locations Visit
www.MillerWelds.com
Welding Process Handbooks
To locate a Distributor or Service Agency visit
www.millerwelds.com or call 1-800-4-A-Miller
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.
ORIGINAL INSTRUCTIONS − PRINTED IN USA
International Headquarters−USA
USA Phone: 920-735-4505 Auto-Attended
USA & Canada FAX: 920-735-4134
International FAX: 920-735-4125
© 2018 Miller Electric Mfg. LLC
2018−01
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