Chicago Electric MIG 180 Owner`s manual

OM-225 311G
2010−03
Processes
MIG (GMAW) Welding
Flux Cored (FCAW) Welding
Description
Arc Welding Power Source And
Wire Feeder
Millermatic 140 Auto−Set
And 180 Auto-Set
And M-10 Gun
™
R
™
Visit our website at
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
Miller is the first welding parts list will then help you to decide the
equipment manufacturer in exact part you may need to fix the problem.
the U.S.A. to be registered to
the ISO 9001 Quality System Warranty and service information for your
Standard.
particular model are also provided.
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 2009−09
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 − SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2. Duty Cycle And Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3. Volt-Ampere Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 4 − INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1. Installing Welding Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2. Installing Work Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-3. Work Cable Routing Inside Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-4. Process/Polarity Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-5. Changing Polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-6. Installing Gas Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-7. Selecting A Location And Connecting Input Power For 115 VAC Model . . . . . . . . . . . . . . . . . . . . . . . . .
4-8. Selecting A Location And Connecting Input Power For 230 VAC Model . . . . . . . . . . . . . . . . . . . . . . . .
4-9. Electrical Service Guide For 230 VAC Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-10. Installing Wire Spool And Adjusting Hub Tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-11. Threading Welding Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-12. Removing MIG Gun From Welding Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-13. Installing Switch For Optional Spool Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-14. Connecting Spool Gun To Millermatic 140/180 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 5 − OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1. Controls For 115 VAC Model w/Auto-Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2. Controls For 230 VAC Model w/Auto-Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-3. Weld Parameter Chart For 115 VAC Model w/Auto−Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-4. Weld Parameter Chart For 230 VAC Model w/Auto−Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 6 − MAINTENANCE &TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-1. Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2. Overload Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-3. Drive Motor Protection And Tip Saver/Short Circuit Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-4. Changing Drive Roll Or Wire Inlet Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5. Replacing Gun Contact Tip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-6. Cleaning Or Replacing Gun Liner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-7. Replacing Switch And/Or Head Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-8. Troubleshooting Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 7 − ELECTRICAL DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS
SECTION 8 − MIG WELDING (GMAW) GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-1. Typical MIG Process Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-2. Typical MIG Process Control Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-3. Holding And Positioning Welding Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-4. Conditions That Affect Weld Bead Shape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-5. Gun Movement During Welding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-6. Poor Weld Bead Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-7. Good Weld Bead Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-8. Troubleshooting − Excessive Spatter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-9. Troubleshooting − Porosity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-10. Troubleshooting − Excessive Penetration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-11. Troubleshooting − Lack Of Penetration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-12. Troubleshooting − Incomplete Fusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-13. Troubleshooting − Burn-Through . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-14. Troubleshooting − Waviness Of Bead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-15. Troubleshooting − Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-16. Common MIG Shielding Gases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-17. Troubleshooting Guide For Semiautomatic Welding Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 9 − PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WARRANTY
38
38
39
40
41
42
42
42
43
43
43
44
44
44
45
45
46
46
48
SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING
som _2009−08
7
Protect yourself and others from injury — read and follow these precautions.
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 unit.
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 output in damp areas, if movement is confined, 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 and ground 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 for damage or bare wiring −
replace cord immediately if damaged − bare wiring can kill.
D Turn off all equipment when not in use.
D Do not use worn, damaged, undersized, or poorly spliced 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.
SIGNIFICANT DC VOLTAGE exists in inverter welding power sources AFTER removal of inputpower.
D Turn Off inverter, disconnect input power, and discharge input
capacitors according to instructions in Maintenance Section
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-225 311 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 If inside, ventilate the area and/or use local forced ventilation at the
arc to remove welding fumes and gases.
D If ventilation is poor, wear an approved air-supplied respirator.
D Read and understand the Material Safety Data Sheets (MSDSs)
and the manufacturer’s instructions for metals, consumables,
coatings, cleaners, and degreasers.
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.
D Remove stick electrode from holder or cut off welding wire at
contact tip when not in use.
D Wear oil-free protective garments 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.
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 shielding gas supply when not in use.
D Always ventilate confined spaces or use
approved air-supplied respirator.
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 protective clothing made from durable, flame-resistant
material (leather, heavy cotton, or wool) and foot protection.
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.
D Do not weld on closed containers such as tanks, drums, or pipes,
unless they are properly prepared according to AWS F4.1 (see
Safety Standards).
D Do not weld where the atmosphere may 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.
OM-225 311 Page 2
ELECTRIC AND MAGNETIC FIELDS (EMF)
can affect ImplantedMedical 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.
Shielding gas cylinders contain gas under high
pressure. If damaged, a cylinder can explode. Since
gas cylinders are normally part of the welding
process, be sure to treat them carefully.
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 shielding 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.
D Keep protective cap in place over valve except when cylinder is in
use or connected for use.
D Use the right equipment, correct procedures, and sufficient number of persons to lift and move 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 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.
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 maintenance and service according to the Owner’s
Manuals, industry standards, and national, state, and local
codes.
OVERUSE can cause OVERHEATING
H.F. RADIATION can cause interference.
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.
D
D
D
D
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.
ARC WELDING can cause interference.
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.
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.
The user is responsible for having a qualified electrician promptly correct any interference problem resulting from the installation.
If notified by the FCC about interference, stop using the
equipment at once.
Have the installation regularly checked and maintained.
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 Electromagnetic energy can interfere with
sensitive electronic equipment such as
computers and computer-driven equipment
such as robots.
D Be sure all equipment in the welding area is
electromagnetically compatible.
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.
OM-225 311 Page 3
1-4. California Proposition 65 Warnings
Welding or cutting equipment produces fumes or gases
which contain chemicals known to the State of California to
cause birth defects and, in some cases, cancer. (California
Health & Safety Code Section 25249.5 et seq.)
Battery posts, terminals and related accessories contain lead
and lead compounds, chemicals known to the State of
California to cause cancer and birth defects or other
reproductive harm. Wash hands after handling.
For Gasoline Engines:
Engine exhaust contains chemicals known to the State of
California to cause cancer, birth defects, or other reproductive harm.
For Diesel Engines:
Diesel engine exhaust and some of its constituents are
known to the State of California to cause cancer, birth
defects, and other reproductive harm.
1-5. Principal Safety Standards
Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1,
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).
National Electrical Code, NFPA Standard 70, from National Fire Protection Association, Quincy, MA 02269 (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, 4221 Walney Road, 5th Floor,
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, Ontario, Canada L4W 5NS (phone:
800-463-6727, website: www.csa-international.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 02269 (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, 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).
U.S. Consumer Product Safety Commission (CPSC), 4330 East West
Highway, Bethesda, MD 20814 (phone: 301-504-7923, website:
www.cpsc.gov).
Applications Manual for the Revised NIOSH Lifting Equation, The National Institute for Occupational Safety and Health (NIOSH), 1600
Clifton Rd, Atlanta, GA 30333 (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). Welding current creates an EMF field
around the welding circuit and welding equipment. EMF fields may interfere with some medical implants, e.g. pacemakers. Protective
measures for persons wearing medical implants have to be taken. For
example, access restrictions for passers−by or 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-225 311 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
fre_som_2009−08
7
Se protéger et protéger les autres contre le risque de blessure — lire et respecter ces consignes.
2-1. Symboles utilisés
DANGER! − Indique une situation dangereuse qui si on
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.
NOTE − 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.
Seul un personnel qualifié est autorisé à installer, faire fonctionner, entretenir et réparer cet appareil.
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 se servir de source électrique à courant électrique dans les
zones humides, dans les endroits confinés ou là où on risque de
tomber.
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,
l’utilisation d’un poste à souder DC à fil à tension constante est recommandée. En outre, ne pas travailler seul !
D 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).
D Installer le poste correctement et le mettre à la terre convenablement selon les consignes du manuel de l’opérateur et les normes
nationales, provinciales et locales.
D Toujours vérifier la terre du cordon d’alimentation. Vérifier et
s’assurer que le fil de terre du cordon d’alimentation est bien
raccordé à la borne de terre du sectionneur ou que la fiche du
cordon est raccordée à une prise correctement mise à la terre.
D En effectuant les raccordements d’entrée, fixer d’abord le conducteur de mise à la terre approprié et contre-vérifier les connexions.
D Les câbles doivent être exempts d’humidité, d’huile et de graisse;
protégez−les contre les étincelles et les pièces métalliques
chaudes.
D Vérifier fréquemment le cordon d’alimentation afin de s’assurer
qu’il n’est pas altéré ou à nu, le remplacer immédiatement s’il l’est.
Un fil à nu peut entraîner la mort.
D L’équipement doit être hors tension lorsqu’il n’est pas utilisé.
D Ne pas utiliser des câbles usés, endommagés, de grosseur insuffisante ou mal épissés.
D Ne pas enrouler les câbles autour du corps.
D Si la pièce soudée doit être mise à la terre, le faire directement
avec un câble distinct.
D Ne pas toucher l’électrode quand on est en contact avec la pièce,
la terre ou une électrode provenant d’une autre machine.
D Ne pas toucher des porte électrodes connectés à deux machines
en même temps à cause de la présence d’une tension à vide doublée.
D N’utiliser qu’un matériel en bon état. Réparer ou remplacer sur-lechamp les pièces endommagées. Entretenir l’appareil conformément à ce manuel.
D Porter un harnais de sécurité si l’on doit travailler au-dessus du sol.
D S’assurer que tous les panneaux et couvercles sont correctement
en place.
D Fixer le câble de retour de façon à obtenir un bon contact métalmétal avec la pièce à souder ou la table de travail, le plus près possible de la soudure.
D Isoler la pince de masse quand pas mis à la pièce pour éviter le
contact avec tout objet métallique.
D Ne pas raccorder plus d’une électrode ou plus d’un câble de
masse à une même borne de sortie de soudage.
OM-225 311 Page 5
Il reste une TENSION DC NON NÉGLIGEABLE dans
les sources de soudage onduleur UNE FOIS
l’alimentation coupée.
D Arrêter les convertisseurs, débrancher le courant électrique et
décharger les condensateurs d’alimentation selon les instructions
indiquées dans la partie Entretien avant de toucher les pièces.
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.
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.
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.
LES FUMÉES ET LES GAZ peuvent
être dangereux.
D Se protéger et d’autres personnes de la projection d’étincelles et
de métal chaud.
Le soudage génère des fumées et des gaz. Leur
inhalation peut être dangereux pour votre santé.
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 Eloigner votre tête des fumées. Ne pas respirer les fumées.
D Surveiller tout déclenchement d’incendie et tenir un extincteur à
proximité.
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.
D Le soudage effectué sur un plafond, plancher, paroi ou séparation
peut déclencher un incendie de l’autre côté.
D Si la ventilation est médiocre, porter un respirateur anti-vapeurs
approuvé.
D Lire et comprendre les spécifications de sécurité des matériaux
(MSDS) et les instructions du fabricant concernant les métaux, les
consommables, les revêtements, les nettoyants et les dégraisseurs.
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 intense
(ultraviolets et infrarouges) susceptibles de provoquer des brûlure
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 des vêtements confectionnés avec des matières résistantes et ignifuges (cuir, coton lourd ou laine) et des bottes de
protection.
OM-225 311 Page 6
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 (voir les normes de sécurité).
D Ne soudez pas si l’air ambiant est chargé de particules, gaz, ou vapeurs 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 des vêtements de protection dépourvus d’huile tels que des
gants en cuir, une chemise en matériau lourd, des pantalons sans
revers, des chaussures hautes et un couvre chef.
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 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.
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 protecteur 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.
LES BOUTEILLES peuvent exploser
si elles sont endommagées.
Des bouteilles de gaz protecteur 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 protecteur, régulateurs,
tuyaux et raccords convenables pour cette application spécifique ;
les maintenir ainsi que les éléments associés en bon état.
D Détourner votre visage du détendeur-régulateur lorsque vous
ouvrez la soupape de la bouteille.
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.
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 Utiliser les équipements corrects, les bonnes procédures et suffisamment de personnes pour soulever et déplacer 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 Utiliser un équipement de levage de capacité
suffisante pour lever 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.
OM-225 311 Page 7
Les PIÈCES MOBILES peuvent
causer des blessures.
LE
RAYONNEMENT
HAUTE
FRÉQUENCE
(H.F.)
risque
de
provoquer des interférences.
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.
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.
LIRE LES INSTRUCTIONS.
D Lire et appliquer les instructions sur les
étiquettes et le Mode d’emploi avant l’installation, l’utilisation ou l’entretien de l’appareil.
Lire les informations de sécurité au début du
manuel et dans chaque section.
D N’utiliser que les pièces de rechange recommandées par le
constructeur.
D Effectuer l’entretien en respectant les manuels d’utilisation, les
normes industrielles et les codes nationaux, d’état et locaux.
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 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
D
D
D
D
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.
Veiller à ce que tout l’équipement de la zone de soudage soit
compatible électromagnétiquement.
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).
Veiller à souder à une distance de 100 mètres de tout équipement électronique sensible.
Veiller à ce que ce poste de soudage soit posé et mis à la terre
conformément à ce mode d’emploi.
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
Les équipements de soudage et de coupage produisent des
fumées et des gaz qui contiennent des produits chimiques
dont l’État de Californie reconnaît qu’ils provoquent des malformations congénitales et, dans certains cas, des cancers.
(Code de santé et de sécurité de Californie, chapitre 25249.5
et suivants)
Les batteries, les bornes et autres accessoires contiennent
du plomb et des composés à base de plomb, produits chimiques dont l’État de Californie reconnaît qu’ils provoquent des
cancers et des malformations congénitales ou autres
problèmes de procréation. Se laver les mains après manipulation.
OM-225 311 Page 8
Pour les moteurs à essence :
Les gaz d’échappement des moteurs contiennent des produits chimiques dont l’État de Californie reconnaît qu’ils
provoquent des cancers et des malformations congénitales
ou autres problèmes de procréation.
Pour les moteurs diesel :
Les gaz d’échappement des moteurs diesel et certains de
leurs composants sont reconnus par l’État de Californie comme provoquant des cancers et des malformations
congénitales ou autres problèmes de procréation.
2-5. Principales normes de sécurité
Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1,
de Global Engineering Documents (téléphone : 1-877-413-5184, site
Internet : www.global.ihs.com).
Safe Practices for the Preparation of Containers and Piping for Welding
and Cutting, American Welding Society Standard AWS F4.1, de Global
Engineering Documents (téléphone : 1-877-413-5184, site internet :
www.global.ihs.com).
National Electrical Code, NFPA Standard 70, de National Fire Protection Association, Quincy, MA 02269 (téléphone : 800-344-3555, site
Internet : www.nfpa.org et www.sparky.org).
Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,
de Compressed Gas Association, 4221 Walney Road, 5th Floor, Chantilly, VA 20151 (téléphone : 703-788-2700, site Internet :
www.cganet.com).
Safety in Welding, Cutting, and Allied Processes, CSA Standard
W117.2, de Canadian Standards Association, Standards Sales, 5060
Spectrum Way, Suite 100, Ontario, Canada L4W 5NS (téléphone :
800-463-6727, site internet : www.csa-international.org).
Safe Practice For Occupational And Educational Eye And Face Protection, ANSI Standard Z87.1, de American National Standards Institute,
25 West 43rd Street, New York, NY 10036 (téléphone : 212-642-4900,
site Internet : www.ansi.org).
Standard for Fire Prevention During Welding, Cutting, and Other Hot
Work, NFPA Standard 51B, de National Fire Protection Association,
P.O. Box 9101, Quincy, MA 02269-9101 (téléphone : 617-770-3000,
site Internet : www.nfpa.org).
OSHA, Occupational Safety and Health Standards for General
Industry, Title 29, Code of Federal Regulations (CFR), Part 1910,
Subpart Q, and Part 1926, Subpart J, de U.S. Government Printing
Office, Superintendent of Documents, P.O. Box 371954, Pittsburgh, PA
15250-7954 (téléphone : 1-866-512-1800) (il y a 10 bureaux
régionaux−le téléphone de la région 5, Chicago, est 312-353-2220, site
Internet : www.osha.gov).
U.S. Consumer Product Safety Commission (CPSC), 4330 East West
Highway, Bethesda, MD 20814 (téléphone : 301-504-7923, site internet : www.cpsc.gov).
Applications Manual for the Revised NIOSH Lifting Equation, The
National Institute for Occupational Safety and Health (NIOSH), 1600
Clifton Rd, Atlanta, GA 30333 (télé[hone : 1-800-232-4636, site internet:
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 de soudage
crée un CEM autour du circuit et du matériel de soudage. Les CEM
peuvent créer des interférences avec certains implants médicaux
comme des stimulateurs cardiaques. Des mesures de protection pour
les porteurs d’implants médicaux doivent être prises: par exemple, des
restrictions d’accès pour les passants ou une évaluation individuelle
des risques pour les soudeurs. Tous les soudeurs doivent appliquer les
procédures suivantes pour minimiser l’exposition aux CEM provenant
du circuit de soudage:
4. Maintenir la tête et le torse aussi loin que possible du matériel du
circuit de soudage.
1. Rassembler les câbles en les torsadant ou en les attachant avec
du ruban adhésif ou avec une housse.
2. Ne pas se tenir au milieu des câbles de soudage. Disposer les
câbles d’un côté et à distance de l’opérateur.
3. Ne pas courber et ne pas entourer les câbles autour de votre
corps.
En ce qui concerne les implants médicaux :
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.
Les porteurs d’implants doivent d’abord consulter leur médecin avant
de s’approcher des opérations de soudage à l’arc, de soudage par
points, de gougeage, du coupage plasma ou de chauffage par induction. Si le médecin approuve, il est recommandé de suivre les
procédures précédentes.
OM-225 311 Page 9
OM-225 311 Page 10
. A complete Parts List is available on-line at www.MillerWelds.com
SECTION 3 − SPECIFICATIONS
3-1. Specifications
A. 115 VAC Model w/Auto−Sett
Rated Welding
Output
90 A @ 18 Volts
DC, 20% Duty
Cycle
30 − 140
63 A @ 21 Volts
DC, 20% Duty
Cycle*
Wire Type
And Dia
Maximum
Open-Circuit
Voltage DC
Amperage Range
Solid
KVA
KW
20
2.8
2.4
15*
2.1*
1.8*
28
Stainless
.024 - .030 in.
(0.6 - 0.8 mm)
Amperes Input at
Rated Load Output 115 V, 60 Hz,
Single-Phase
.023 - .030 in.
(0.6 - 0.8 mm)
Weight
W/Gun
60 lb
(27 kg)
Overall
Dimensions
Length: 17-1/2 in.
(444 mm)
Width: 10-5/8 in.
(273 mm)
Height: 15-3/4 in.
(400 mm)
Flux Cored
Wire Feed Speed Range
.030 - .035 in.
(0.8 - 0.9 mm)
35 − 420 IPM (0.9 − 10.7 m/min) At No Load
15 − 390 IPM (0.4 − 9.9 m/min) Feeding Wire
* CSA Rating
B. 230 VAC Model w/Auto−Set
Rated Welding
Output
135 A @ 22.5 Volts
DC, 30% Duty Cycle
At 60 Hz Input
Amperage
Range
Maximum
Open-Circuit
Voltage DC
Amperes Input at
Rated Load Output
230 V, 60 Hz,
Single-Phase
KVA
KW
Weight
W/Gun
Overall
Dimensions
Length: 17-1/2 in.
(444 mm)
30 − 180
31
21.7
5.0
4.1
72 lb
(32.7 kg)
Width: 10-5/8 in.
(273 mm)
Height: 15-3/4 in.
(400 mm)
Wire Type
And Dia
Solid/
Stainless
Flux Cored
.024 − .035 in.
(0.6 − 0.9 mm)
.030 − .045 in.
(0.8 − 1.2 mm)
Wire Feed Speed Range w/Wire Feed Speed Tracking On
95 − 565 IPM (2.4 − 14.4 m/min) At No Load
60 − 540 IPM (1.5 − 13.7 m/min) Feeding Wire
OM-225 311 Page 11
. A complete Parts List is available on-line at www.MillerWelds.com
3-2. Duty Cycle And Overheating
Duty Cycle is percentage of 10
minutes that unit can weld at rated
load without overheating.
If unit overheats, thermostat(s)
opens, output stops, and cooling
fan runs. Wait fifteen minutes for
unit to cool. Reduce amperage or
duty cycle before welding.
A. 115 VAC
Model
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
20% Duty Cycle at 90 Amps
2 Minutes Welding
8 Minutes Resting
B. 230 VAC
Model
30% Duty Cycle at 135 Amps, 60 Hz
3 Minutes Welding
7 Minutes Resting
Overheating
A or V
0
15
Minutes
OR
Reduce Duty Cycle
duty1 4/95 − 230 342-A / 230 343-A
OM-225 311 Page 12
. A complete Parts List is available on-line at www.MillerWelds.com
3-3. Volt-Ampere Curves
The volt-ampere curves show the
minimum and maximum voltage
and amperage output capabilities of
the welding power source. Curves
of other settings fall between the
curves shown.
A. 115 VAC Model
30
AMPERES
25
20
MAX
MIN
15
10
5
0
0
20
40
60
80
100
120
140
160
VOLTS
B. 230 VAC Model
30
AMPERES
25
20
MAX
MIN
15
10
5
0
0
20
40
60
80
100
120
140
160
180
200
VOLTS
225 265-A / 228 250-A
OM-225 311 Page 13
. A complete Parts List is available on-line at www.MillerWelds.com
SECTION 4 − INSTALLATION
4-1. Installing Welding Gun
1
2
3
Drive Assembly
Gun Securing Knob
Gun End
Loosen knob. Insert end of gun
through opening in front panel
until it bottoms against drive
assembly. Tighten knob.
4
3
Gun Trigger Plug
Insert into receptacle, and tighten
threaded collar.
4
Close door.
1
2
. Be sure that gun end is tight against drive assembly.
3
3
Correct
Incorrect
Ref. 802 982-A / Ref. 801 987
4-2. Installing Work Clamp
. Connection hardware must be tightened with proper tools. Do not just
hand tighten hardware. A loose electrical connection will cause poor
weld performance and excessive heating of the work clamp.
1
2
3
4
5
Nut
Work Cable From Unit
Work Clamp
Screw
Work Clamp Tabs
Bend tabs around work cable.
6
3
1
Insulating Sleeves
Slide one insulating sleeve over
work cable before connecting to
clamp.
Slide both insulating sleeves over
handles.
6
2
5
4
Tools Needed:
7/16 in.
7/16 in.
OM-225 311 Page 14
802 456-A
. A complete Parts List is available on-line at www.MillerWelds.com
4-3. Work Cable Routing Inside Unit
2
1
2
Work Cable
Output Terminal Block
Insert work cable through opening
in front panel and route along back
of front panel to output terminal
block.
1
Close door.
Ref. 802 982-A
4-4. Process/Polarity Table
Process
Cable Connections
Polarity
Cable To Gun
Cable To Work
GMAW − Solid wire with shielding gas
DCEP − Reverse polarity
Connect to positive (+) output terminal
Connect to negative (−) output
terminal
FCAW − Self-shielding wire −
no shielding gas
DCEN − Straight Polarity
Connect to negative (−)
output terminal
Connect to positive (+) output
terminal
4-5. Changing Polarity
. Connection hardware must be tightened with proper tools. Do not
just hand tighten hardware. A loose electrical connection will cause
poor weld performance and excessive heating at the terminal block.
C H A N G IN G P O L A R IT Y
DCEP
Electrode
ElectrodePOSITIVE
Positive
FOR SOLID WIRE
WorkClamp
Lead
DCEN
Electrode Negative
Flux Core Wire
2
Lead Connections For Direct
Current Electrode Positive
(DCEP)
Lead Connections For Direct
Current Electrode Negative
(DCEN)
Always read and follow wire
manufacturer’s
recommended
polarity, and see Section 4-4.
Close door.
WorkClamp
Lead
1
1
2
Wire Drive
Lead
Wire Drive
Lead
Ref. 203 501 / Ref. 802 982-
OM-225 311 Page 15
. A complete Parts List is available on-line at www.MillerWelds.com
4-6. Installing Gas Supply
Obtain gas cylinder and chain to
running gear, wall, or other
stationary support so cylinder
cannot fall and break off valve.
. DO NOT use Argon/Mixed gas regulator/flowmeter
with CO2 shielding gas. See Parts List for optional
CO2 gas regulator/flowmeter and hose.
1
4
2
1
Cap
2
Cylinder Valve
Remove cap, stand to side of valve,
and open valve slightly. Gas flow
blows dust and dirt from valve.
Close valve.
3
Cylinder
4
Regulator/Flowmeter
Install so face is vertical.
7
3
5
5
Regulator/Flowmeter Gas
Hose Connection
6
Welding Power Source Gas
Hose Connection
Connect supplied gas hose
between regulator/flowmeter gas
hose connection, and fitting on rear
of welding power source.
7
Argon Gas Or
Mixed Gas
Flow Adjust
Flow rate should be set when gas is
flowing through welding power
source and welding gun. Open
feedhead pressure assembly so
that wire will not feed. Press gun
trigger to start gas flow.
Typical flow rate is 20 cfh (cubic
feet per hour). Check wire
manufacturer’s recommended
flow rate.
6
Tools Needed:
After flow is set, close feedhead
pressure assembly.
5/8, 1-1/8 in.
Feedhead Pressure Assembly Open
Feedhead Pressure Assembly Closed
Ref. 802 028 / 246 037-A / Ref. 802 982-A
OM-225 311 Page 16
. A complete Parts List is available on-line at www.MillerWelds.com
4-7. Selecting A Location And Connecting Input Power For 115 VAC Model
1
2
Rating Label
Grounded Receptacle
A 115 volt, 20 ampere individual
branch circuit protected by time-delay
fuses or circuit breaker is required.
3
Plug From Unit
Select extension cord of 14 AWG
for up to 50 ft (15 m) or 12 AWG for
50 up to 200 ft (61 m).
!
!
Do not move or operate
unit where it could tip.
1
18 in.
(460 mm)
Special installation may be
required where gasoline or
volatile liquids are present −
see NEC Article 511 or CEC
Section 20.
2
3
18 in.
(460 mm)
804 681-A
OM-225 311 Page 17
. A complete Parts List is available on-line at www.MillerWelds.com
4-8. Selecting A Location And Connecting Input Power For 230 VAC Model
!
Do not move or operate
unit where it could tip.
18 in. (457 mm) of
space for airflow
1
6
=GND/PE Earth
Ground
8
!
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.
1
Rating Label
Supply correct input power.
2
5
3
7
4
5
2
3
6
L1
L2
7
Black And White Input
Conductor (L1 And L2)
Green Or Green/Yellow
Grounding Conductor
Input Power Cord.
Disconnect Device (switch
shown in the OFF position)
Disconnect Device Grounding
Terminal
Disconnect Device Line
Terminals
Connect green or green/yellow
grounding conductor to disconnect
device grounding terminal first.
4
Connect input conductors L1 and L2
to disconnect device line terminals.
1
8
9
Over-Current Protection
Select type and size of over-current
protection using Section 4-9 (fused
disconnect switch shown).
Close and secure door on disconnect
device. Remove lockout/tagout device, and place switch in the On position.
9 Plug (NEMA 6-50P)
10 Receptacle (NEMA 6-50R)
10
Connect plug to receptacle.
L1
L2
!
Special installation may be
required where gasoline or
volatile liquids are present −
see NEC Article 511 or CEC
Section 20.
230 VAC, 1
Tools Needed:
Ref. 804 681-A / Ref. 802 443 / Ref. 802 085 / 803 766-B
OM-225 311 Page 18
. A complete Parts List is available on-line at www.MillerWelds.com
4-9. Electrical Service Guide For 230 VAC Model
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
230
Input Voltage (V)
21.7
Input Amperes (A) At Rated Output
Max Recommended Standard Fuse Rating In Amperes
Time-Delay Fuses 2
25
3
30
Normal Operating Fuses
Min Input Conductor Size In AWG
1
4
14
61
(19)
Max Recommended Input Conductor Length In Feet (Meters)
Min Grounding Conductor Size In AWG 4
14
Reference: 2008 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 amps), and UL class “H” ( 65 amps and
above).
4 Conductor data in this section specifies conductor size (excluding flexible cord or cable) between the panelboard and the equipment per NEC Table
310.16. If a flexible cord or cable is used, minimum conductor size may increase. See NEC Table 400.5(A) for flexible cord and cable requirements.
4-10. Installing Wire Spool And Adjusting Hub Tension
Installing 4 in. (102 mm) Wire Spool
When a slight force is needed
to turn spool, tension is set.
Installing 8 in. (203 mm) Wire Spool
Adapter used with 8 in.
(203 mm) spool only.
When a slight force is
needed to turn spool, tension is set.
Align locking hole in
spool with locking
pin on spool hub.
Retaining ring used with 8 in.
(203 mm) spool only.
Tools Needed:
1/2 in.
803 012 / 803 013 -B / Ref. 802 444-C
OM-225 311 Page 19
. A complete Parts List is available on-line at www.MillerWelds.com
4-11. Threading Welding Wire
1
2
3
4
5
6
Wire Spool
Welding Wire
Inlet Wire Guide
Pressure Adjustment Knob
Drive Roll
Gun Conduit Cable
Lay gun cable out straight.
4
6
Tools Needed:
1
2
3
1
5
2
. Hold wire tightly to keep it
3
from unraveling.
4 in.
(102 mm)
6 in.
(150 mm)
Open pressure assembly.
Pull and hold wire; cut off end.
Push wire thru guides into gun;
continue to hold wire.
. Use pressure indicator scale to set a desired
4
drive roll pressure. Begin with a setting of 3.
If necessary, make additional adjustments
after trying this initial setting.
Tighten
6
5
Pressure
Indicator
Scale
1
2
3
4
INPUT
POWER
Be sure that wire is positioned in proper drive
roll groove and wire is laying in the groove.
Close and tighten pressure
assembly, and let go of wire.
Remove gun nozzle and contact tip.
8
7
Turn power on.
9
Tighten
WOOD
Press gun trigger until wire comes
out of gun. (Keep gun cable as
straight as possible.)
Be sure that tip matches wire diameter.
Reinstall contact tip and nozzle.
1
2
3
4
Feed wire to check drive roll pressure.
Tighten knob enough to prevent slipping.
Cut off wire. Close door.
Ref. 802 982-A / Ref. 205 837
OM-225 311 Page 20
. A complete Parts List is available on-line at www.MillerWelds.com
4-12. Removing MIG Gun From Welding Power Source
Cut Off End Of Wire
Open Pressure Assembly
Knob
. Hold wire tightly to keep it
from unraveling.
Rewind Wire Onto Spool, Fasten
End Of Wire To Spool
Loosen Knob, Disconnect Gun Trigger
Plug, And Pull Gun From Unit
Ref. 802 982-A
OM-225 311 Page 21
. A complete Parts List is available on-line at www.MillerWelds.com
4-13. Installing Switch For Optional Spool Gun
!
1
Turn Off unit, and disconnect
input power.
. For
units prior to Serial No.
LH210051N, use retrokit part
no. 300409 for installing spool
gun switch.
2
Remove wrapper from welding
power source.
1
1
2
3
Welding Power Source Center
Baffle
Snap-in Blank
Remove and discard snap-in blank
from hole in center baffle.
4
3
4
Switch Assembly
Star Washer
5
Jam Nut
Remove top jam nut and star washer from switch (switch is equipped
with two nuts, a jam nut and a
backing nut).
Insert switch assembly into center
baffle so that keyway in switch shaft
is facing up.
5
Secure switch to center baffle with
star washer and jam nut. Tighten
jam nut enough to keep switch from
rotating.
6
7
8
Wiring Harness Connectors
Switch Connectors
Label
Locate and separate connectors in
wiring harness near label.
Connect switch connectors to
matching connectors in wiring
harness.
Install wrapper on unit.
Operation:
Place switch in the position with the
spool gun symbol on the label for
spool gun operation. Place switch in
the position with the MIG gun symbol
on the label for wire feeder/MIG
(GMAW) gun operation.
When the switch is in the spool gun
position, spool gun wire feed speed
and voltage are controlled by
welding power source controls.
7
6
8
Tools Needed:
1/4, 5/16 in.
9/16 in.
Ref. 804 984-A / 804 892-A
OM-225 311 Page 22
. A complete Parts List is available on-line at www.MillerWelds.com
4-14. Connecting Spool Gun To Millermatic 140/180
6
1
2
3
4
7
Drive Assembly
Spool Gun
Gun Securing Knob
Gun End
Loosen thumbscrew. Insert end
through opening until it bottoms
against drive assembly. Tighten
gun securing knob.
Spool gun must be inserted
completely to prevent leakage of
shielding gas.
5
5
Gun Trigger Plug
Insert plug into receptacle, and
tighten threaded collar.
6
Spool Gun/MIG Gun Switch
Place switch in Spool Gun position.
7
1
3
4
To make proper polarity connection,
see welding power source Owner’s
Manual.
2
Close door.
. Be sure that gun end is tight against drive assembly.
4
Incorrect
Gun Not Seated
Exposed O-rings
will cause shielding
gas leakage.
Polarity Changeover Terminal
Block
4
Correct
Gun Fully Seated
804 984-A / Ref. 801 987
OM-225 311 Page 23
. A complete Parts List is available on-line at www.MillerWelds.com
SECTION 5 − OPERATION
5-1. Controls For 115 VAC Model w/Auto-Set
1
6
2
3
5
4
227 748-G
1
Wire Speed Control
Turn control clockwise inside white scale
(10-100) to increase wire feed speed. (see
weld parameter chart in welding power
source or Section 5-3).
2
Voltage Control
Turn control clockwise inside white scale
(1-10) to increase voltage (see weld
parameter chart in welding power source
or Section 5-3).
OM-225 311 Page 24
3
Power Switch
4
Over Temperature Light
If unit overheats, light flashes and output
stops. Allow unit to cool before resuming
operation.
5
Gun Trigger Receptacle
6
Auto−Set Light
To use Auto−Set mode, rotate Wire Speed
control inside blue area for the applicable
Weld Wire Diameter, Auto−Set light will
turn on, and the unit will provide the
appropriate wire feed speed for the
material thickness selected using the
Voltage control (see Section 5-3).
Rotate Voltage control inside blue scale (24
ga to 1/8 in.) for the applicable material
thickness and the unit will provide the
appropriate voltage within the range of the
selected material thickness and the selected
Weld Wire Diameter (see Section 5-3).
. A complete Parts List is available on-line at www.MillerWelds.com
5-2. Controls For 230 VAC Model w/Auto-Set
1
6
2
3
5
4
Ref. 233 619-D
1 Wire Speed Control
Turn control clockwise inside white scale
(10-100) to increase wire feed speed. (see
weld parameter chart in welding power
source or Section 5-4).
2 Voltage Control
Turn control clockwise inside white scale
(1-10) to increase voltage (see weld
parameter chart in welding power source
or Section 5-4).
3 Power Switch
4 Over Temperature Light
If unit overheats, light flashes and output
stops. Allow unit to cool before resuming
operation.
5 Gun Trigger Receptacle
6 Auto−Set Light
To use Auto−Set mode, rotate Wire Speed
control inside blue/green area for the
applicable Weld Wire Diameter, Auto−Set
light will turn on, and the unit will provide the
appropriate wire feed speed for the
material thickness selected using the
Voltage control (see Section 5-4).
Rotate Voltage control inside blue/green
scale (24 ga to 5/16 in.) for the applicable
material thickness and the unit will provide
the appropriate voltage within the range of the
selected material thickness and the selected
Weld Wire Diameter (see Section 5-4).
. Blue shaded areas are for .030 wire
applications. Green shaded areas are
for .024 wire applications.
OM-225 311 Page 25
. A complete Parts List is available on-line at www.MillerWelds.com
5-3. Weld Parameter Chart For 115 VAC Model w/Auto−Set
Auto−Sett − SIMPLE SETUP FOR WELDING MILD STEEL
Example: .030” diameter wire, welding 18 ga. material.
.024”
.030”
t
Se
o−
ut
A
t
Auto−Set*
WELD WIRE
DIAMETER
MATERI AL TH
IC
KN
ES
S
Activate Auto−Sett by selecting
the diameter of the welding wire
with the WIRE SPEED knob.
Auto−Set light comes on.
Select thickness of the mild steel
being welded with the VOLTAGE
knob.
Setup complete.
USE 75% ARGON / 25% CO2 SHIELDING GAS
(DCEP)
(DCEP)
(DCEN)
(DCEP)
Selecting Wire, Gas and Control Settings for Aluminum with optional Spool Gun. Order part no. 300371
Aluminum w/
Opt. Spool Gun
Aluminum
4043ER
100% Argon
.030” (0.8 mm)
.035” (0.9 mm)
NOTE: Settings are approximate. Adjust as required.
“−−−” Means not recommended.
“*” Thicker materials can be welded using proper technique,
joint preparation and multiple passes.
IMPORTANT: Match drive roll groove to diameter of wire being used.
Set Tension knob setting to 3 at start. Adjust tension
per instructions in the manual.
OM-225 311 Page 26
. A complete Parts List is available on-line at www.MillerWelds.com
Manual Setup
Refer to chart below to select Voltage and Wire Speed based
on thickness of metal being welded.
1. Number on right
of slash is Wire
Speed Knob Setting.
(Example: 4 / 65)
ATERI AL TH
t M
IC
et
KN
−S
E
o
SS
ut
A
2. Number on left of
slash is Voltage
Knob Setting.
(Example: 4 / 65)
4.5/70 5.5/80 10/90
2/40
3/50
3/50
4/65
2/32
3/40
3/40
4/45
5/55
4/45
5/60
5.5/65
4/35
5/40
5.5/45 6.5/50 10/60
5.5/60 10/65
7/80
10/80
2/35
3/40
5.5/60 10/65
2.5/32
3/35
4.5/45 10/50
4.5/50 4.5/50
6/75
7/95
10/95
5/50
6/60
7/70
10/75
3/90
3/70
3/90
3/75
10/100
10/90
4/40
10/50
J
227 931-J
OM-225 311 Page 27
. A complete Parts List is available on-line at www.MillerWelds.com
5-4. Weld Parameter Chart For 230 VAC Model w/Auto−Set
Auto-Sett - SIMPLE SETUP FOR WELDING MILD STEEL
Example: .030” diameter wire, welding 1/8” material.
.024”
.030”
Auto-Set*
WELDWIRE
DIAMETER
t ATERIAL THIC
t M 14ga
KN
Se
E
o
ut 16ga VOLTAGE 1/8” SS
A
5
6
18
ga
4
3
7
8
3/
16”
Activate Auto-Sett by selecting
the diameter of the welding wire
with the WIRE SPEED knob.
Auto-Sett light comes on.
Select thickness of the mild steel
being welded with the VOLTAGE
knob.
Setup complete.
.024” (0.6 mm)
(DCEP)
.030” (0.8 mm)
.035” (0.9 mm)
.024” (0.6 mm)
(DCEP)
.030” (0.8 mm)
.035” (0.9 mm)
.030” (0.8 mm)
(DCEN)
.035” (0.9 mm)
.045” (1.2 mm)
Stain−
less
(DCEP)
Steel
90% He / 7.5% Ar
/ 2.5% CO2
.024” (0.6 mm)
.030” (0.8 mm)
.035” (0.9 mm)
Selecting Wire, Gas and Control Settings for Aluminum with optional Spool Gun. Order part no. 300371
.030” (0.8 mm)
Aluminum
100% Argon
Aluminum
Spool Gun
4043ER
.035” (0.9 mm)
NOTE: Settings are approximate. Adjust as required.
“---” Means not recommended.
Thicker materials can be welded using proper
technique, joint preparation and multiple passes.
OM-225 311 Page 28
IMPORTANT: Match drive roll groove to diameter of wire being
used. Set Tension knob setting to 3 at start. Adjust
tension per instructions in the manual.
. A complete Parts List is available on-line at www.MillerWelds.com
Manual Setup
Refer to chart below to select Voltage and Wire Speed based
on thickness of metal being welded.
1. Number on right
of slash is Wire
Speed Knob Setting.
(Example: 4.5 / 65)
ATE RIA L TH IC
ttM 14 ga
KN
Se
E
to
O LTA G E 1/8” SS
u
V
16
ga
A
5
6
18
ga
4
7
3
8
2. Number on left of
slash is Voltage
Knob Setting.
(Example: 4.5 / 65)
3
/16”
24 ga.
22 ga.
20 ga. 18 ga.
16 ga.
14 ga.
1/8”
1/4”
5/16”
3/16”
(0.6mm) (0.8mm) (0.9mm) (1.2mm) (1.5mm) (1.9mm) (3.2mm) (4.8mm) (6.4mm) (7.9mm)
2/28
2.5/30
2.5/30
2.5/35
3/50
3.5/65
4.5/90
2/20
2.5/25
2.5/25
3/35
−−−
2.5/20
2.5/20
3/25
3/40
3/30
3.5/45
3.5/35
4.5/65
4.5/55
−−−
−−−
−−−
−−−
3/20
−−−
−−−
−−−
−−−
−−−
−−−
−−−
−−−
−−−
−−−
−−−
−−−
−−−
−−−
−−−
−−−
3.5/25
−−−
−−−
−−−
−−−
5.5/100
5.5/85
−−−
−−−
6.5/95
7.5/100
5.5/65
6.5/70
10/80
−−−
−−−
7/75
7/65
10/80
3.5/40
3.5/35
4/25
4/45
4/40
4.5/30
4.5/60
5/50
5/45
5.5/90
2/25
3/30
4/45
6/60
−−−
2/20
3/10
3/25
4/15
4/40
4.5/20
6/55
6/30
7/70
7/60
7/40
4/45
4/40
4/35
4.5/65
4.5/50
4.5/45
5.5/90
5/65
5/55
6/100
−−−
−−−
4/35
3.5/30
3.5/25
6/80
6/65
7/95
7/85
−−−
−−−
2/75
−−−
−−−
2/75
2.5/70
4/75
4/65
5/80
5/70
7/100
8/85
10/85
3/25
3.5/35
3.5/30
3.5/30
3.5/20
1/15
1/15
−−−
.024”(0.6mm)#087299
.030”(0.8mm)#000067
.035”(0.9mm)#000068
.045”(1.2mm)#000069
6/70
5.5/50
−−−
.024”
(0.8 mm)
#194010
.030-.035” (0.8-0.9 mm) #194011
.035-.045” (0.9-1.2 mm) #194012
.035-.045” (0.9-1.2 mm) #194012
10/65
−−−
10/65
10/45
−−−
−−−
−−−
−−−
−−−
.024” (0.6 mm) #220179
.030” (0.8 mm) #220179
.035” (0.8 mm) #220179
.045” (1.2 mm)
* For Flux Core or Stainless Wire
*
#202926
#202926
#202926
233 622−D
233 622-D
OM-225 311 Page 29
. A complete Parts List is available on-line at www.MillerWelds.com
SECTION 6 − MAINTENANCE &TROUBLESHOOTING
6-1. Routine Maintenance
!
n = Check
Z = Change
~ = Clean
* To be done by Factory Authorized Service Agent
. Maintain more often
Disconnect power
before maintaining.
during severe conditions.
l = Replace
Reference
Every
3
Months
l Unreadable Labels
Every
6
Months
~ Weld Terminals
nl Weld Cables
OR
~ Inside Unit
6-2. Overload Protection
1
Supplementary Protector CB1
CB1 protects unit from overload. If
CB1 opens, unit shuts down.
1
Reset supplementary protector.
246 037-A
6-3. Drive Motor Protection And Tip Saver/Short Circuit Protection
A. Drive Motor Protection
Drive motor protection circuit protects drive motor from overload. If drive motor becomes inoperative, cycle unit power
off and back on again.
B. Tip Saver/Short Circuit Protection
The tip saver/short circuit protection extends contact tip life and protects internal components from damage. If contact
tip is shorted to workpiece, the unit shuts down the welding output, but the fan continues to run. To resume operation,
release gun trigger to reset unit. If the contact tip has stuck to the workpiece, release gun trigger, turn off unit, and
remove contact tip from workpiece. Check contact tip and replace if damaged. Turn on unit to continue operation.
OM-225 311 Page 30
. A complete Parts List is available on-line at www.MillerWelds.com
6-4. Changing Drive Roll Or Wire Inlet Guide
1
Inlet Wire Guide
Remove guide by pressing on
barbed area or cutting off one end
near housing and pulling it out of
hole. Push new guide into hole from
rear until it snaps in place.
2
1
2
3
Stamped .024
Retaining Pin
To secure drive roll, locate open slot
and push drive roll completely over
retaining pin, then rotate drive roll
1/4 turn to closed slot.
3
.030/.035 Groove
Drive Roll
The drive roll consists of two different sized grooves. The stamped
markings on the end surface of the
drive roll refers to the groove on the
opposite side of the drive roll. The
groove closest to the motor shaft is
the proper groove to thread (see
Section 4-11).
.024 Groove
Stamped .030/.035
802 984
6-5. Replacing Gun Contact Tip
!
Turn Off power before
replacing contact tip.
1
2
Nozzle
Contact Tip
Cut off welding wire at contact tip.
Remove nozzle.
Remove contact tip and install new
contact tip. Reinstall nozzle.
2
1
Tools Needed:
Ref. 802 399-A
OM-225 311 Page 31
. A complete Parts List is available on-line at www.MillerWelds.com
6-6. Cleaning Or Replacing Gun Liner
Tools Needed:
!
Disconnect gun from unit.
8 mm / 10 mm
1
Head Tube
2
10 mm
8 mm
Remove liner.
Remove nozzle, contact tip, adapter, gas
diffuser, and wire outlet guide.
3
Blow out gun casing.
To Reassemble Gun:
Install and tighten new liner.
Lay gun cable out straight
before installing new liner.
Cut liner off 3/4 in. (20 mm) (3/8 in.
[9.5 mm] for aluminum) from head
tube.
Install adapter, contact tip, and
nozzle.
Ref. ST-802 399-A
OM-225 311 Page 32
. A complete Parts List is available on-line at www.MillerWelds.com
6-7. Replacing Switch And/Or Head Tube
!
1
Turn Off welding power source
/wire feeder and disconnect gun.
Remove handle
locking nut.
3 Slide handle carefully
so wires do not break.
2
Remove switch housing. Install new switch and
connect leads (polarity is not important). Reassemble in reverse order. If replacing head tube,
continue to end of figure.
4 Secure head
tube in vice.
5
6
Loosen jam nut.
Remove from vice
and turn head tube
out by hand.
Hand-tighten head tube into cable connector.
8
7
Place head tube in vice and tighten until
nuts are tight.
Remove from vice. Reposition handle and install
switch housing. Secure with handle locking nut.
Tools Needed:
19 mm
Ref. ST-800 795-C
OM-225 311 Page 33
. A complete Parts List is available on-line at www.MillerWelds.com
6-8. Troubleshooting Table
Trouble
Remedy
No weld output; wire does not feed; fan Secure power cord plug in receptacle (see Section 4-7 or 4-8).
does not run.
Replace building line fuse or reset circuit breaker if open.
Place Power switch in On position (see Section 5-1 or 5-2).
Reset welding power source supplementary protector if open.
No weld output; wire does not feed; fan Thermostat TP1 open (overheating). Allow fan to run with gun trigger switch off; thermostat closes when
unit has cooled (see Section 5-1 or 5-2).
motor continues to run.
Secure gun trigger plug (see Section 4-1).
Release gun trigger and cycle unit power off and back on again.
No weld output; wire feeds.
Connect work clamp to get good metal to metal contact.
Check for loose connections.
Replace contact tip (see Section 6-5).
Check for proper polarity connections (see Section 4-5).
Check thumbscrew securing gun end to feed head adapter and tighten if necessary.
Low weld output.
Connect unit to proper input voltage or check for low line voltage.
Place Power switch in On position (see Section 5-1 or 5-2).
Electrode wire feeding stops during Straighten gun cable and/or replace damaged parts.
welding.
Adjust drive roll pressure (see Section 4-11).
Change to proper drive roll groove (see Section 6-4).
Readjust hub tension (see Section 4-10).
Be sure that wire is positioned in proper drive roll groove and wire is laying in the groove.
Replace contact tip if blocked (see Section 6-5). Oversized tip may be required for some wires.
Clean or replace wire inlet guide or liner if dirty or plugged (see Section 6-4 or Section 6-6).
Replace drive roll or pressure bearing if worn or slipping (see Section 6-4).
Secure gun trigger plug (see Section 4-1).
Check and clear any restrictions at drive assembly and liner (see Section 6-4 or Section 6-6).
Release gun trigger and allow gun and motor protection circuitry to reset.
Have nearest Factory Authorized Service Agent check drive motor.
OM-225 311 Page 34
Notes
OM-225 311 Page 35
SECTION 7 − ELECTRICAL DIAGRAM
Figure 7-1. Circuit Diagram
OM-225 311 Page 36
234 419-B
OM-225 311 Page 37
SECTION 8 − MIG WELDING (GMAW) GUIDELINES
mig1 2009−12
8-1. Typical MIG Process Connections
!
Weld current can damage
electronic parts in vehicles.
Disconnect both battery
cables before welding on a
vehicle. Place work clamp as
close to the weld as possible.
Regulator/
Flowmeter
Wire Feeder/
Power Source
Gun
Shielding Gas
Gas
Workpiece
Work Clamp
Ref. 801 909-A
OM-225 311 Page 38
8-2. Typical MIG Process Control Settings
. These settings are guidelines only. Material and wire type, joint design, fitup, position, shielding gas, etc. affect settings. Test welds to be sure
they comply to specifications.
Material thickness determines weld
parameters.
1/8 or 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-225 311 Page 39
8-3. Holding And Positioning Welding Gun
. Welding wire is energized when gun trigger is pressed. Before lowering helmet and pressing trigger, be sure wire is no more than 1/2 in. (13 mm)
past end of nozzle, and tip of wire is positioned correctly on seam.
1
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-225 311 Page 40
S-0421-A
8-4. Conditions That Affect Weld Bead Shape
. Weld bead shape depends on gun angle, direction of travel, electrode extension (stickout), travel speed,
thickness of base metal, wire feed speed
(weld current), and voltage.
10°
Push
10°
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-225 311 Page 41
8-5. Gun Movement During Welding
. Normally, a single stringer bead is satisfactory for most narrow groove weld joints; however, for wide groove weld joints or bridging across gaps,
a weave bead or multiple stringer beads works better.
1
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
8-6.
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
8-7.
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-225 311 Page 42
8-8.
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.
8-9.
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.
8-10. 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-225 311 Page 43
8-11. Troubleshooting − Lack Of Penetration
Lack Of Penetration − shallow
fusion between weld metal and
base metal.
Lack of Penetration
Good Penetration
S-0638
Possible Causes
Corrective Actions
Improper joint preparation.
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.
8-12. Troubleshooting − Incomplete Fusion
Incomplete Fusion − failure of weld metal to fuse completely with
base metal or a preceeding weld bead.
S-0637
Possible Causes
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.
8-13. 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-225 311 Page 44
8-14. Troubleshooting − Waviness Of Bead
Waviness Of Bead − weld metal that is not parallel and does not cover
joint formed by base metal.
S-0641
Possible Causes
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.
8-15. Troubleshooting − Distortion
Distortion − contraction of weld metal during welding that forces
base metal to move.
Base metal moves
in the direction of
the weld bead.
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-225 311 Page 45
8-16. Common MIG Shielding Gases
This is a general chart for common gases and where they are used. Many different combinations (mixtures) of
shielding gases have been developed over the years. The most commonly used shielding gases are listed in the
following table.
Application
Gas
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
8-17. 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-225 311 Page 46
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-225 311 Page 47
SECTION 9 − PARTS LIST
. A complete Parts List is available on-line at www.MillerWelds.com
9-1. Recommended Spare Parts
Item
No.
Part
No.
. . . . . . . . . . . . . . . . . . . . . 169 715
. . . . . . . . . . . . . . . . . . . ♦087 299
. . . . . . . . . . . . . . . . . . . ♦000 067
. . . . . . . . . . . . . . . . . . . ♦000 068
. . . . . . . . . . . . . . . . . . . ♦000 069
. . . . . . . . . . . . . . . . . . . ♦194 010
. . . . . . . . . . . . . . . . . . . ♦194 011
. . . . . . . . . . . . . . . . . . . ♦194 012
. . . . . . . . . . . . . . . . . . . . . 079 975
Description
Quantity
. . NOZZLE, slip type .500 orf flush . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . TIP, contact scr .023 wire x 1.125
. . TIP, contact scr .030 wire x 1.125
. . TIP, contact scr .035 wire x 1.125
. . TIP, contact scr .045 wire x 1.125
. . LINER, monocoil .023/.025 wire x 15ft (consisting of) . . . . . . . . . . . . . . .
. . LINER, monocoil .030/.035 wire x 15ft (consisting of) . . . . . . . . . . . . . . .
. . LINER, monocoil .035/.045 wire x 15ft (consisting of) . . . . . . . . . . . . . . .
. . . . O-RING, .187 ID x .103CS rbr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
1
1
1
1
♦OPTIONAL
To maintain the factory original performance of your equipment, use only Manufacturer’s Suggested
Replacement Parts. Model and serial number required when ordering parts from your local distributor.
9-2. Optional Drive Rolls
For All Feed Head Assemblies
PART NO.
WIRE DIAMETER INCHES (mm)
220 179
.024 (.6) and .030 − .035 (.8 and .9)
202 926
.030/.035 (.8 and .9) and .045 (1.2 VK Groove)
9-3. Options
PART NO.
DESCRIPTION
REMARKS
195 605
M-10 Replacement Gun
10 ft length/.030-.035 wire size
OM-225 311 Page 48
Notes
Notes
Work like a Pro!
Pros weld and cut
safely. Read the
safety rules at
the beginning
of this manual.
Effective January 1, 2010
(Equipment with a serial number preface of MA 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 6. 90 Days — Parts
below, Miller Electric Mfg. Co., Appleton, Wisconsin, warrants to its
* Accessory (Kits)
original retail purchaser that new Miller equipment sold after the
* Canvas Covers
effective date of this limited warranty is free of defects in material
* Induction Heating Coils and Blankets, Cables, and
and workmanship at the time it is shipped by Miller. THIS
Non-Electronic Controls
WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER
* M-Guns
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE
* MIG Guns and Subarc (SAW) Guns
WARRANTIES OF MERCHANTABILITY AND FITNESS.
* Remote Controls and RFCS-RJ45
Within the warranty periods listed below, Miller will repair or replace
* Replacement Parts (No labor)
any warranted parts or components that fail due to such defects in
* Roughneck Guns
material or workmanship. Miller must be notified in writing within
* Spoolmate Spoolguns
thirty (30) days of such defect or failure, at which time Miller will
provide instructions on the warranty claim procedures to be
followed.
Miller shall honor warranty claims on warranted equipment listed
below in the event of such a failure within the warranty time
periods. All warranty time periods start on the delivery date of the
equipment to the original end-user purchaser, and not to exceed
one year after the equipment is shipped to a North American
distributor or eighteen months after the equipment is shipped to an
International distributor.
1.
2.
3.
4.
5.
5 Years Parts — 3 Years Labor
* Original main power rectifiers only to include SCRs,
diodes, and discrete rectifier modules
3 Years — Parts and Labor
* Engine Driven Welding Generators
(NOTE: Engines are warranted separately by the
engine manufacturer.)
* Inverter Power Sources (Unless Otherwise Stated)
* Plasma Arc Cutting Power Sources
* Process Controllers
* Semi-Automatic and Automatic Wire Feeders
* Smith 30 Series Flowgauge and Flowmeter
Regulators (No Labor)
* Transformer/Rectifier Power Sources
* Water Coolant Systems (Integrated)
2 Years — Parts
* Auto-Darkening Helmet Lenses (No Labor)
1 Year — Parts and Labor Unless Specified
* Automatic Motion Devices
* CoolBelt and CoolBand Blower Unit (No Labor)
* 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.)
* Flowgauge and Flowmeter Regulators (No Labor)
* RFCS Foot Controls (Except RFCS-RJ45)
* Fume Extractors
* HF Units
* ICE Plasma Cutting Torches (No Labor)
* Induction Heating Power Sources, Coolers, and
Electronic Controls/Recorders
* Load Banks
* Motor Driven Guns (w/exception of Spoolmate
Spoolguns)
* PAPR Blower Unit (No Labor)
* Positioners and Controllers
* Racks
* Running Gear/Trailers
* Spot Welders
* Subarc Wire Drive Assemblies
* Water Coolant Systems (Non-Integrated)
* Weldcraft-Branded TIG Torches (No Labor)
* Work Stations/Weld Tables (No Labor)
6 Months — Parts
* Batteries
* Bernard Guns (No Labor)
* Tregaskiss Guns (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 PURCHASE AND
USE BY COMMERCIAL/INDUSTRIAL USERS AND PERSONS
TRAINED AND EXPERIENCED IN THE USE AND
MAINTENANCE OF WELDING EQUIPMENT.
In the event of a warranty claim covered by this warranty, the
exclusive remedies shall be, at Miller’s option: (1) repair; or (2)
replacement; or, where authorized in writing by Miller in
appropriate cases, (3) the reasonable cost of repair or
replacement at an authorized Miller service station; or (4) payment
of or credit for the purchase price (less reasonable depreciation
based upon actual use) upon return of the goods at customer’s risk
and expense. Miller’s option of repair or replacement will be F.O.B.,
Factory at Appleton, Wisconsin, or F.O.B. at a Miller authorized
service facility as determined by Miller. Therefore no
compensation or reimbursement for transportation costs of any
kind will be allowed.
TO THE EXTENT PERMITTED BY LAW, THE REMEDIES
PROVIDED HEREIN ARE THE SOLE AND EXCLUSIVE
REMEDIES. IN NO EVENT SHALL MILLER BE LIABLE FOR
DIRECT,
INDIRECT,
SPECIAL,
INCIDENTAL
OR
CONSEQUENTIAL DAMAGES (INCLUDING LOSS OF
PROFIT), WHETHER BASED ON CONTRACT, TORT OR ANY
OTHER LEGAL THEORY.
ANY EXPRESS WARRANTY NOT PROVIDED HEREIN AND
ANY
IMPLIED
WARRANTY,
GUARANTY
OR
REPRESENTATION AS TO PERFORMANCE, AND ANY
REMEDY FOR BREACH OF CONTRACT TORT OR ANY
OTHER LEGAL THEORY WHICH, BUT FOR THIS PROVISION,
MIGHT ARISE BY IMPLICATION, OPERATION OF LAW,
CUSTOM OF TRADE OR COURSE OF DEALING, INCLUDING
ANY IMPLIED WARRANTY OF MERCHANTABILITY OR
FITNESS FOR PARTICULAR PURPOSE, WITH RESPECT TO
ANY AND ALL EQUIPMENT FURNISHED BY MILLER IS
EXCLUDED AND DISCLAIMED BY MILLER.
Some states in the U.S.A. do not allow limitations of how long an
implied warranty lasts, or the exclusion of incidental, indirect,
special or consequential damages, so the above limitation or
exclusion may not apply to you. This warranty provides specific
legal rights, and other rights may be available, but may vary from
state to state.
In Canada, legislation in some provinces provides for certain
additional warranties or remedies other than as stated herein, and
to the extent that they may not be waived, the limitations and
exclusions set out above may not apply. This Limited Warranty
provides specific legal rights, and other rights may be available,
but may vary from province to province.
miller_warr 2010−01
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. Co.
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
© 2010 Miller Electric Mfg. Co.
2010−01