Miller Electric 273, 293, 383, 333, 271 User Manual

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Page 1

OM-223 194E 2006−09

Effective with serial number 226 213

Processes

Description

Arc Welding Power Source Wire Feeder

Migmatic

MIG (GMAW) Welding Flux Cored (FCAW) Welding

271/273/293/333/383

www.MillerWelds.com

Page 2

From Miller to You

Thank you and congratulations on choosing Miller. Now you can get the job done and get it done right. We know you don’t have time to do it any other way.

That’s why when Niels Miller first started building arc welders in 1929, he made sure his products offered long-lasting value and superior quality. Like you, his customers couldn’t afford anything less. Miller products had to be more than the best they could be. They had to be the best you could buy.

Today, the people that build and sell Miller products continue the tradition. They’re just as committed to providing equipment and service that meets the high standards of quality and value established in 1929.

This Owner’s Manual is designed to help you get the most out of your Miller products. Please take time to read the Safety precautions. They will help you protect yourself against potential hazards on the worksite. We’ve made installation and operation quick and easy. With Miller you can count on years of reliable service with proper maintenance. And if for some reason the unit needs repair, there’s a Troubleshooting section that will help you figure out what the problem is. The parts list will then help you to decide which exact part you may need to fix the problem. Warranty and service information for your particular model are also provided.

Working as hard as you do

− every power source from Miller is backed by the most hassle-free warranty in the business.

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 catalog sheets.

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TABLE OF CONTENTS

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

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

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

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

1-4. California Proposition 65 Warnings 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

SECTION 2 − DEFINITIONS 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 3 − INSTALLATION 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1. Specifications 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2. Duty Cycle And Overheating 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3. Volt-Ampere Curves 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4. Installing Gas Supply 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5. Installing Wire Spool and Adjusting Hub Tension 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-6. Positoning Jumper Links (230/400V 3-Phase Models) 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-7. Electrical Service Guide 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-8. Selecting a Location and Connecting Input Power (1-Phase and 3-Phase) 12 . . . . . . . . . . . . . . . . . . . . . .

3-9. Installing Drive Rolls and Wire Guide 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-10. Aligning Drive Rolls and Wire Guide 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-11. Threading Welding Wire and Adjusting Pressure Roll Tension 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-12. Using Gun/Cable Holder 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-13. Setting Gun Polarity for Wire Type (Optional) 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 4 − OPERATION 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-1. Controls for Migmatic 271/273 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2. Controls for Migmatic 293/333 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3. Controls for Migmatic 383 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4. Run-In, Burnback (Optional) and Spot Weld Timer Controls 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 5 − MAINTENANCE &TROUBLESHOOTING 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-1. Routine Maintenance 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-2. Circuit Breaker CB1 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-3. Unit Overload 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-4. Troubleshooting 19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 6 − ELECTRICAL DIAGRAMS 21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 7 − PARTS LIST 26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

WARRANTY

Page 4

Declaration of Conformity for

European Community (CE) Products

NOTE

Manufacturer: European Contact:

ITW Welding Products Italy S.r.l. Mr. Danilo Fedolfi, Via Privata Iseo 6/E Managing Director 20098 San Giuliano ITW Welding Products Italy S.r.l. Milanese, Italy Via Privata Iseo 6/E Phone: 39(02)98290-1 20098 San Giuliano

European Contact Signature:

Declares that this product: Migmatic 271/273/293/333/383

conforms to the following Directives and Standards:

This information is provided for units with CE certification (see rating label on unit).

Milanese, Italy Phone: 39(02)98290-1 Fax: 39(02)98290203

Directives

Electromagnetic Compatibility Directives: 89/336/EEC

Low Voltage: 73/23/EEC

Machinery Directives: 89/392/EEC

And their amendments 91/368/EEC, 92/31/EEC, 93/44/EEC, 93/68/EEC, 98/37/EC

Standards

Electromagnetic compatibility (EMC) EN50199: August 1995

Safety Requirements for Arc Welding Equipment Part 1: EN 60974-1: 1998

And their amendments EN60974-1:2005, EN60974-10:2003

The product technical file is maintained by the responsible Business Unit(s) located at the manufacturing facility.

dec_stat_Milan_6/05

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SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING

Y Warning: Protect yourself and others from injury — read and follow these precautions.

1-1. Symbol Usage

Means Warning! Watch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols.

som _3/05

Y Marks a special safety message.

. Means “Note”; not safety related.

1-2. Arc Welding Hazards

Y 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.

Y Only qualified persons should install, operate, maintain, and

repair this unit.

Y 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

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 follow-

ing electrically hazardous conditions are present: in damp locations or while wearing wet clothing; on metal structures such as floors, gratings, or scaffolds; when in cramped positions such as sitting, kneeling, or lying; or when there is a high risk of 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 conduc-

tor first − double-check connections.

D Frequently inspect input power cord for damage or bare wiring −

replace cord immediately if damaged − bare wiring can kill.

power circuit and machine internal circuits are also

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

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 ma-

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

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

parts at once. Maintain unit according to manual.

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

or worktable as near the weld as practical.

D Insulate work clamp when not connected to workpiece to prevent

contact with any metal object.

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

single weld output terminal.

SIGNIFICANT DC VOLTAGE exists in inverter-type welding power sources after removal of input power.

D Turn Off inverter, disconnect input power, and discharge input

capacitors according to instructions in Maintenance Section before touching any parts.

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 op-

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

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

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

OM-223 194 Page 1

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ARC RAYS can burn eyes and skin.

BUILDUP OF GAS can injure or kill.

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 fil-

ter lenses to protect your face and eyes 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 mate-

rial (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

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

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

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

contact tip when not in use.

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

for hot work and have a fire watcher and extinguisher nearby.

workpiece, and hot equipment can cause fires and

FLYING METAL 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.

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

approved air-supplied respirator.

HOT PARTS can cause severe burns.

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

torch.

D To handle hot parts, use proper tools and/or

wear heavy, insulated welding gloves and clothing to prevent burns.

MAGNETIC FIELDS can affect pacemakers.

D Pacemaker wearers keep away. D Wearers should consult their doctor before

going near arc welding, gouging, or spot welding 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, mechani-

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

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

support or cylinder rack to prevent falling or tipping.

D Keep cylinders away from any welding or other electrical circuits. D Never drape a welding torch over a gas cylinder. D Never allow a welding electrode to touch any cylinder. D Never weld on a pressurized cylinder − explosion will result. D Use only correct shielding gas cylinders, regulators, hoses, and fit-

tings 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 num-

ber 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.

OM-223 194 Page 2

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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 UNIT can cause injury.

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.

OVERUSE can cause OVERHEATING

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

starting to weld again.

D Do not block or filter airflow to unit.

STATIC (ESD) can damage PC boards.

D Put on grounded wrist strap BEFORE handling

boards or parts.

D Use proper static-proof bags and boxes to

store, move, or ship PC boards.

MOVING PARTS can cause injury.

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 as necessary.

D Reinstall doors, panels, covers, or guards

when maintenance is finished and before reconnecting input power.

READ INSTRUCTIONS.

D Read Owner’s Manual before using or servic-

ing unit.

D Use only genuine Miller/Hobart replacement

parts.

H.F. RADIATION can cause interference.

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

navigation, safety services, computers, and communications equipment.

D Have only qualified persons familiar with

electronic equipment perform this installation.

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

ly correct any interference problem resulting from the installation.

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

equipment at once.

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

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

MOVING PARTS can cause injury.

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

rolls.

WELDING WIRE can cause injury.

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.

1-4. California Proposition 65 Warnings

Y 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.)

Y 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.

ARC WELDING can cause interference.

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.

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

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

D Locate welding operation 100 meters from any sensitive elec-

tronic equipment.

D Be sure this welding machine is installed and grounded

according to this manual.

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

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

For Gasoline Engines: Y Engine exhaust contains chemicals known to the State of

California to cause cancer, birth defects, or other reproductive harm.

For Diesel Engines: Y Diesel engine exhaust and some of its constituents are known

to the State of California to cause cancer, birth defects, and other reproductive harm.

OM-223 194 Page 3

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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).

Recommended Safe Practices for the Preparation for Welding and Cutting of Containers and Piping, American Welding Society Standard

AWS F4.1 from Global Engineering Documents (phone: 1-877-413-5184, website: www.global.ihs.com).

National Electrical Code, NFPA Standard 70, from National Fire Protection Association, P.O. Box 9101, 1 Battery March Park, Quincy, MA 02269−9101 (phone: 617−770−3000, website: www.nfpa.org).

Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1, from Compressed Gas Association, 1735 Jefferson Davis Highway, Suite 1004, Arlington, VA 22202−4102 (phone: 703−412−0900, website: www.cganet.com).

Code for Safety in Welding and Cutting, CSA Standard W117.2, from Canadian Standards Association, Standards Sales, 178 Rexdale

1-6. EMF Information

Considerations About Welding And The Effects Of Low Frequency Electric And Magnetic Fields

Welding current, as it flows through welding cables, will cause electromagnetic fields. There has been and still is some concern about such fields. However, after examining more than 500 studies spanning 17 years of research, a special blue ribbon committee of the National Research Council concluded that: “The body of evidence, in the committee’s judgment, has not demonstrated that exposure to powerfrequency electric and magnetic fields is a human-health hazard.” However, studies are still going forth and evidence continues to be examined. Until the final conclusions of the research are reached, you may wish to minimize your exposure to electromagnetic fields when welding or cutting.

To reduce magnetic fields in the workplace, use the following procedures:

Boulevard, Rexdale, Ontario, Canada M9W 1R3 (phone: 800−463−6727 or in Toronto 416−747−4044, website: www.csa−in- ternational.org).

Practice For Occupational And Educational Eye And Face Protection,

ANSI Standard Z87.1, from American National Standards Institute, 11 West 42nd Street, New York, NY 10036−8002 (phone: 212−642−4900, website: www.ansi.org).

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

P.O. Box 9101, 1 Battery March Park, Quincy, MA 02269−9101 (phone: 617−770−3000, 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 (there are 10 Regional Offices−−phone for Region 5, Chicago, is 312−353−2220, website: www.osha.gov).

1. Keep cables close together by twisting or taping them.

2. Arrange cables to one side and away from the operator.

3. Do not coil or drape cables around your body.

4. Keep welding power source and cables as far away from operator as practical.

5. Connect work clamp to workpiece as close to the weld as possible.

About Pacemakers:

Pacemaker wearers consult your doctor before welding or going near welding operations. If cleared by your doctor, then following the above procedures is recommended.

OM-223 194 Page 4

Page 9

SECTION 2 − DEFINITIONS

Warning! Watch Out! There are possible hazards as shown by the symbols.

1 Electric shock can kill.

1.1 Wear dry insulating gloves. Do not touch electrode with bare hand. Do not wear wet or damaged gloves.

1.2 Protect yourself from electric shock by insulating yourself from work and ground.

1.3 Disconnect input plug or power before working on machine.

2 Breathing welding fumes can be

hazardous to your health.

2.1 Keep your head out of the fumes.

2.2 Use forced ventilation or local exhaust to remove the fumes.

2.3 Use ventilating fan to remove fumes.

3 Welding sparks can cause explosion

or fire.

3.1 Keep flammables away from welding. Do not weld near flammables.

3.2 Welding sparks can cause fires. Have a fire extinguisher nearby, and have a watchperson ready to use it.

3.3 Do not weld on drums or any closed containers.

4 Arc rays can burn eyes and injure

skin.

4.1 Wear hat and safety glasses. Use ear protection and button shirt collar. Use welding helmet with correct shade of filter. Wear complete body protection.

5 Become trained and read the

instructions before working on the machine or welding.

6 Do not remove or paint over (cover)

the label.

2 3

1 Warning! Watch Out! There

are possible hazards as

shown by the symbols. 2 Drive rolls can injure fingers 3 Welding wire and drive parts

are at welding voltage during

operation − keep hands and

metal objects away.

OM-223 194 Page 5

Page 10

Warning! Watch Out! There are possible hazards as shown by the symbols.

Electric shock from wiring can kill.

Disconnect input plug or power before working on machine.

Read the Owner’s Manual before working on this machine.

1 Consult rating label for input

power requirements, and

check power available at the

job site − they must match. 2 Read Owner’s Manual and

inside labels for connection

points and procedures. 3 Move jumper links as shown

on inside label to match

voltage at job site. 4 Having a loop of extra length,

connect grounding conductor

first. 5 Connect line input conductors

as shown on inside label −

double-check all connections,

jumper link positions, and

input voltage before applying

power.

1 Warning! Watch Out! There

are possible hazards as

shown by the symbols. 2 Moving parts, such as fans,

can cut fingers and hands and

cause injury. Keep away from

moving parts.

S-176 106

1 Warning! Watch Out! There

are possible hazards as

shown by the symbols.

2 Falling unit can cause injury.

Do not move or operate unit where it could tip.

3 Cylinders can expolde if

damaged. Protect compressed gas cylinders from excessive heat, mechanical shock, slag, open flames, sparks, and arcs.

OM-223 194 Page 6

Page 11

1 Warning! Watch Out! There

are possible hazards as

12 3 4

shown by the symbols. 2 Electrical shock from wiring

can kill. 3 Read Owner’s Manual before

working on this machine 4 Wear approved safety

glasses 5 Electrode Positive (Straight

Polarity) Place terminal strips as shown. 6 Electrode Negative (reverse

Polarity) Place terminal strips as shown.

Do not discard this product with general waste.

Reuse or recycle Waste Electrical and Electronic Equipment (WEEE) by disposing at a designated collection facility.

Contact your local recycling office or your local distributor for further information.

OM-223 194 Page 7

Page 12

3-1. Specifications

Max

Rated Input Amperage

Open

Max

Rated Input Amperage

Open

Max

Rated Input Amperage

Open

Max

Rated Input Amperage

Open

Max

Rated Input Amperage

Open

SECTION 3 − INSTALLATION

Rated Output

Model

271

Wire feed speed range 1.3 mpm to 20 mpm. * While idling

Model

273

Wire feed speed range 1.3 mpm to 20 mpm. * While idling

Model

293

Wire feed speed range 1.3 mpm to 20 mpm. * While idling

100% 60% 20%

110 A

20.0 V

Rated Output

100% 60% 35%

145 A

21.0 V

Rated Output

100% 50% 35%

210 A

24 V

150 A

21.0 V

190 A

23.0 V

230 A

25 V

240 A

26 V

240 A

26 V

270 A

27.5 V

Max.

Open

Circuit

Voltage

Max.

Open

Circuit

Voltage

Max.

Open

Circuit

Voltage

Rated Input Amperage

at Rated Output

220/230 VAC 50Hz

Rated Input Amperage

at Rated Output

230 V

23 A 3 A*

Rated Input Amperage

at Rated Output

230 V

30 A 3 A*

32 A 3 A*

400 V

13 A

1.38 A*

400 V

18 A

1.38 A*

Dimension

(mm)

480 x 800 x 1050 85 Net

Dimension

(mm)

480 x 800 x 1050

Dimension

(mm)

480 x 800 x 1050

Weight

(kg)

Weight

(kg)

85-103

Net

Weight

(kg)

90-108

Net

Model

333

Wire feed speed range 1.3 mpm to 20 mpm. * While idling

Model

383

Wire feed speed range 1.3 mpm to 20 mpm. * While idling

OM-223 194 Page 8

Rated Output

100% 50% 35%

210 A

24.5 V

Rated Output

100% 50% 35%

280 A

28.0 V

300 A

29.0 V

350 A

32.0 V

350 A

31.5 V

380 A

33 V

Max.

Open

Circuit

Voltage

Max.

Open

Circuit

Voltage

Rated Input Amperage

at Rated Output

230 V

30 A 3 A*

Rated Input Amperage

at Rated Output

230 V

38 A 3 A*

400 V

18 A

1.75 A*

400 V

22 A

1.75 A*

Dimension

(mm)

480 x 800 x 1050

Dimension

(mm)

480 x 800 x 1050

Weight

(kg)

90-118

Net

Weight

(kg)

105-123

Net

Page 13

3-2. Duty Cycle And Overheating

60% Duty Cycle At 400 Amperes 100% Duty Cycle At 300 Amperes

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 voltage, or duty cycle before welding.

Y Exceeding duty cycle can

damage unit and void

warranty.

% DUTY CYCLE

6 Minutes Welding 4 Minutes Resting

Overheating

Minutes

Continuous Welding

A or V

Reduce Duty Cycle

sduty1 5/95 / 187 478-A

3-3. Volt-Ampere Curves

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

Model 271

MAX

MIN

Model 293

Model 273

MAX

MIN

Model 333

MAX

MIN

Model 383

MAX

MIN

OM-223 194 Page 9

Page 14

3-4. Installing Gas Supply

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

1 Regulator/Flow Gauge Install so face is vertical. 2 Gas Hose Connection 3 Flow Adjust Typical flow rate is 0.9 liters per

minute. Check wire manufacturer’s recommended flow rate. This flow gauge can be adjusted between 2.36 and 11.8 liters per minute.

Argon Gas

CO2 Gas

3-5. Installing Wire Spool and Adjusting Hub Tension

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

Tools Needed:

Ref. ST-148 265-B / Ref. ST-149 827-B / Ref. ST-158 697-A

Nov. 16, 2005

OM-223 194 Page 10

Page 15

3-6. Positoning Jumper Links (230/400V 3-Phase Models)

230 V

400 V

3-7. Electrical Service Guide

Migmatic Model Input Voltage Input Amperes at Rated Output Max Recommended Standard Fuse

or Circuit Breaker Rating in Amperes

** Input Conductor Size in mm ** Grounding Conductor Size in

** Power cord supplied with the unit is sized for 230V operation. Larger power cord may be required for cable lengths greater than 3 meters.

Consult national and local regulations.

271 273 293 333 383 230 230 400 230 400 230 400 230 400

35 23 13 30 18 32 19 38 22

4 2.5 2.5 6 4 6 4 6 4

OM-223 194 Page 11

Page 16

3-8. Selecting a Location and Connecting Input Power (1-Phase and 3-Phase)

Have only qualified persons make this installation.

1 Rating Label Supply correct input power.

18 in (457 mm)

for airflow

GND/PE

Connect First

L1 L2 L1 L2

1-Phase Primary Connection 3-Phase Primary Connection

GND/PE

Connect First

OM-223 194 Page 12

Page 17

3-9. Installing Drive Rolls and Wire Guide



Tools Needed:

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

drive rolls as possible without touching. Tighten screw.

3 Anti-Wear Guide Install guide as shown. 4 Drive Roll The drive roll consists of two differ-

ent 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.

5 Drive Roll Securing Nut. Turn nut one click to secure drive

roll.

5/64 in

7/16 in

3-10. Aligning Drive Rolls and Wire Guide

Correct Incorrect

Y Turn Off power.

View is from top of drive rolls looking down with pressure assembly open.

1 Drive Roll Securing Nut 2 Drive Roll 3 Wire Guide 4 Welding Wire 5 Drive Gear

Insert screwdriver, and turn screw in or out until drive roll groove lines up with wire guide.

Close pressure roll assembly.

Tools Needed:

Ref. 800 412-A

OM-223 194 Page 13

Page 18

3-11. Threading Welding Wire and Adjusting Pressure Roll Tension

1 Wire Spool 2 Welding Wire 3 Inlet Wire Guide 4 Pressure Adjustment Knob 5 Drive Roll

6 Outlet Wire Guide 7 Gun Conduit Cable Lay gun cable out straight.

Tools Needed:

621

. Hold wire tightly to keep it

from unraveling.

150 mm

(6 in)

Open pressure assembly. Pull and hold wire; cut off end. Push wire thru guides into gun;

Tighten

. Use pressure indicator

scale to set a desired drive roll pressure.

1 2 3 4

Pressure

Indicator

Scale

continue to hold wire.

Close and tighten pressure

assembly, and let go of wire.

Press gun trigger until wire

comes out of gun. Reinstall

contact tip and nozzle

OM-223 194 Page 14

Remove gun nozzle and contact tip. Turn On.

Tighten

1 2 3

WOOD

Feed wire to check drive roll pressure.

Tighten knob enough to prevent slipping.

Cut off wire. Close

and latch door.

Ref. 802 064-D / S-0627-A

Page 19

3-12. Using Gun/Cable Holder

1 Side Panel 2 Latch 3 Cable Holder Press latch down to release and

open door.

4 Holster (2) Wrap cable around cable holder,

and place gun nozzle into holster.

3-13. Setting Gun Polarity for Wire Type (Optional)

1 Terminal Cover Protects Polarity Change over ter-

minals from accidental contact. Remove cover to gain access.

2 Electrode Positive (DCEP) For solid steel, stainless steel, alu-

minum, or flux core with gas, wires (GMAW).

3 Electrode Negative (DCEN) For gasless flux core wires

(FCAW), wire drive assembly becomes negative.

Ref. 802 726-A

OM-223 194 Page 15

Page 20

SECTION 4 − OPERATION

4-1. Controls for Migmatic 271/273

1 Voltage Control Turn control clockwise to increase

voltage. 2 2T/4T Trigger Hold Function Latching Torch Trigger 3 Power Switch 4 Work Lead Connection

5 MIG Torch Connection 6 Digital Display Function

Button* 7 Wire Feed Speed Control Turn control clockwise to increase

wire feed speed. 8 Digital Display* Volts/Amps/Wire Feed Speed with

last value hold function. Trigger mode (2T/4T) is shown at power on for 3 seconds and when Trigger mode is changed.

. Not shown:

Jog and Purge controls are lo-

cated under the hinged side

wire consumable access door.

* Optional

4-2. Controls for Migmatic 293/333

6 in

1 Voltage Control (Fine Adjust) Turn control clockwise to increase

voltage. 2 Voltage Control (Coarse

Adjust)

Turn control clockwise to increase

voltage. 3 2T/4T Trigger Hold Function Latching Torch Trigger 4 Power Switch 5 Work Lead Connection 6 MIG Torch Connection 7 Digital Display Function

Button* 8 Wire Feed Speed Control Turn control clockwise to increase

wire feed speed. 9 Digital Display* Volts/Amps/Wire Feed Speed with

last value hold function. Trigger mode (2T/4T) is shown at power on for 3 seconds and when Trigger mode is changed.

. Not shown:

Jog and Purge controls are lo-

cated under the hinged side

wire consumable access door.

* Optional

OM-223 194 Page 16

Page 21

4-3. Controls for Migmatic 383

1 Voltage Control (Fine Adjust) Turn control clockwise to increase

voltage. 2 Voltage Control (Coarse

Adjust) Turn control clockwise to increase

voltage.

3 2T/4T Trigger Hold Function Latching Torch Trigger 4 Power Switch 5 Work Lead Connection − High

Inductance 6 Work Lead Connection − Low

Inductance 7 MIG Torch Connection 8 Digital Display Function

Button* 9 Wire Feed Speed Control Turn control clockwise to increase

wire feed speed. 10 Digital Display* Volts/Amps/Wire Feed Speed with

last value hold function. Trigger mode (2T/4T) is shown at power on for 3 seconds and when Trigger mode is changed.

. Not shown:

Jog and Purge controls are lo-

cated under the hinged side

wire consumable access door.

* Optional

4-4. Run-In, Burnback (Optional) and Spot Weld Timer Controls

1 Run-In Control* Speed of wire prior to striking a

welding arc. This value is a percentage of the set wire for welding.

2 Burnback Control* Time that welding wire stays ener-

gized after trigger is released. 3 Spot Weld Timer Time that welding arc is active be-

fore shutting off automatically. Spot Timer resets after releasing

gun trigger. * Optional

OM-223 194 Page 17

Page 22

SECTION 5 − MAINTENANCE &TROUBLESHOOTING

5-1. Routine Maintenance

3 Months

Replace unreadable labels

Clean and tighten weld terminals

6 Months

Blow out or vacuum inside.

Y Disconnect power

before maintaining.

Repair or replace cracked weld cable

Remove drive roll and carrier. Apply light coat of oil or grease to drive motor shaft.

. Maintain more often

during severe conditions.

5-2. Circuit Breaker CB1

Ref. 802 990

1 Circuit Breaker CB1 CB1 protects the unit from over-

loading of drive motor M1. If CB1 opens, wire feeding stops.

2 Welding Gun Check gun liner for blockage or

kinks. 3 Wire Drive Assembly Check for jammed wire, binding

drive gear or misaligned drive rolls. Allow cooling period and reset

breaker. Close door.

5-3. Unit Overload

Thermal switches TP1 in XFMR and TP2 in SR1 protect the unit from damage due to overheating. If the thermal indicator illuminates, wait for unit to cool allowing fan motor to run before trying to weld. If unit is cool and no weld output continues, contact Factory Authorized Service Agent.

OM-223 194 Page 18

Page 23

5-4. Troubleshooting

Trouble Remedy

No weld output; wire does not feed.

Be sure line disconnect switch is On (see Section 3-8).

Replace building line fuse or reset circuit breaker if open.

Reset circuit breaker CB1 (see Section 5-2).

Secure gun trigger connections.

Check continuity of power switch S1 and replace if necessary.

Check main transformer T1 for signs of windig failure. Check continuity across windings and check for proper connections. Check secondary voltages. Replace T1 if necessary.

Check continuity of thermostats TP1 and TP2. Replace TP1 and TP2 if necessary.

Check main control board PC1 and connections and replace if necessary.

No weld output; wire feeds.

Low weld output.

Low, high, or erratic wire speed. Readjust front panel settings (see Section 4-1).

Connect work clamp to get good metal to metal contact.

Replace contact tip (see gun Owner’s Manual).

An overload condition occurred (see Section 5-3)

Check diodes in main rectifier SR1, and replace if necessary.

Check stabilizer Z1 for signs of winding failure. Check continuity across windings and check connections. Replace Z1 if necessary.

Check main transformer T1 for signs of winding failure. Check continuity across windings and check connections. Check secondary voltages. Replace T1 if necessary.

Check voltage switch(s). Replace if necessary.

Connect unit to proper input voltage or check for low line voltage (see Section 3-6).

Check input voltage jumper links and correct position if necessary (see Section 3-6).

Check main rectifier SR1, and replace if necessary.

Check voltage switch(s). Replace if necessary.

Change to correct size drive rolls.

Readjust drive roll pressure (see Section 3-11).

Replace inlet guide, contact tip, and/or liner if necessary.

No wire feed.

Check position of input jumper links (see Section 3-6).

Check Wire Speed control R1, and replace if necessary.

Check diodes in main rectifier SR1, and replace if necessary.

Check main control boarf PC1 and connections and replace if necessary.

Reset circuit breaker CB1 (see Section 5-2).

Rotate Wire Speed control R1 to higher setting (see Section 4-1).

Clear obstruction in gun contact tip or liner (see gun Owner’s Manual).

OM-223 194 Page 19

Page 24

Notes

OM-223 194 Page 20

Page 25

SECTION 6 − ELECTRICAL DIAGRAMS

Electric Shock

Hazard

S Do not operate with covers removed.

S Have only qualified persons install, use, or

service this unit.

WARNING

S Do not touch live electrical parts.

S Disconnect input power or stop engine

before servicing.

Figure 6-1. Circuit Diagram for Migmatic 271

271−Sept 27, 2005

OM-223 194 Page 21

Page 26

Electric Shock

Hazard

S Do not operate with covers removed.

S Have only qualified persons install, use, or

service this unit.

WARNING

S Do not touch live electrical parts.

S Disconnect input power or stop engine

before servicing.

OM-223 194 Page 22

273−Sept 27, 2006

Figure 6-2. Circuit Diagram for Migmatic 273 (400 VAC)

Page 27

Electric Shock

Hazard

S Do not operate with covers removed.

S Have only qualified persons install, use, or

service this unit.

WARNING

S Do not touch live electrical parts.

S Disconnect input power or stop engine

before servicing.

Figure 6-3. Circuit Diagram for Migmatic 293 (400 VAC)

293−Sept 27, 2006

OM-223 194 Page 23

Page 28

Electric Shock

Hazard

S Do not operate with covers removed.

S Have only qualified persons install, use, or

service this unit.

WARNING

S Do not touch live electrical parts.

S Disconnect input power or stop engine

before servicing.

OM-223 194 Page 24

333− Sept 27, 2005

Figure 6-4. Circuit Diagram for Migmatic 333 (400 VAC)

Page 29

Electric Shock

Hazard

S Do not operate with covers removed.

S Have only qualified persons install, use, or

service this unit.

WARNING

S Do not touch live electrical parts.

S Disconnect input power or stop engine

before servicing.

Figure 6-5. Circuit Diagram for Migmatic 383 (400 VAC)

383−Sept 27 2005

OM-223 194 Page 25

Page 30

SECTION 7 − PARTS LIST

OM-223 194 Page 26

Figure 7-1. Wrapper Assembly, All Models

Page 31

Item

No.

Part

No.

Description

Figure 7-1. Wrapper Assembly, All Models

1 156034005 Catch, side panel 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 156122058 Side Panel, hinged 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 156034004 Hinge 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 156005098 Cylinder Rack, upper support 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 000207235 Label, warning, tilt 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 956142514 Rating Plate, Migmatic 271 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 956142505 Rating Plate, Migmatic 273 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 956142508 Rating Plate, Migmatic 333 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 956142511 Rating Plate, Migmatic 383 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 956142503 Label, F1, fuse and gas input 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8 156087017 Pin, split 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9 056054075 Wheel, rear, 250 O.D. 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10 156009067 Washer 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11 156012113 Axle, rear wheel 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12 156121023 Wrapper, R/H side fixed (271/273/293) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12 156121027 Wrapper, R/H side fixed (333/383) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13 000197555 Gun and cable Holder assy 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14 000207233 Label, general precautionary 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15 056054068 Wheel/Caster, front 80 O.D. 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16 316029701 Nameplate, lower, Migmatic 271 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16 316029702 Nameplate, lower, Migmatic 273 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16 316029706 Nameplate, lower, Migmatic 293 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16 316029703 Nameplate, lower, Migmatic 333 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16 316029704 Nameplate, lower, Migmatic 383 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17 000208154 Front, shroud, plastic assy 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18 000207233 Label, general precautionary 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

19 000207291 Label, primary power connections 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20 156122059 Side Panel, L/H side lower 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21 316029698 Nameplate, upper Migmatic 271 and 273 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21 316029699 Nameplate, upper Migmatic 293/333 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21 316029700 Nameplate, upper Migmatic 383 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Quantity

OM-223 194 Page 27

Page 32

OM-223 194 Page 28

Figure 7-2. Main Assembly for Migmatic 271

April 17, 2006

Page 33

Item

No.

Dia.

Mkgs.

Part

No.

Description

Quantity

Figure 7-2. Main Assembly for Migmatic 271

1 000197555 Tool tray 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 V57052030 Euro Adapter Assembly 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 V56005028 Shroud, Euro adapter 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 156005101 Mounting bracket, drive assembly 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 R1 056059274 Potentiometer, 1K ohm 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 000207075 Knob pointer, wire feed speed control 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 116118172 Front panel 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8 056076152 Dinze adapter 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9 S3 056067251 Switch, main on/off 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10 PL2 056072075 LED indicator, orange, over temperature 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11 PL1 056072076 LED indicator, white, power 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12 056067169 Switch, 2T/4T trigger hold function 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13 PC3 057095015 Digital Volt/Amp/WFS Display (optional) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14 S2 056067201 Switch, 10 position, voltage selection 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15 SR1 056050145 Rectifier, 1Ph 250 Amp 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16 656014012 Mounting bracket, wire jog and gas purge switches 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17 117060016 Baffle plate 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18 TP2 000175405 Thermal Switch PTC 105_ C1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

19 056059257 Shunt (optional) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20 028021459 Transformer, main 220/230 VAC 50 Hz c/w 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TP1 056159025 Thermal Switch PTC 130_ C1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21 R3 056059277 Potentiometer, Run-In control (optional) c/w 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

22 R4 056059277 Potentiometer, Wire burn-back control (optional) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23 R2 056059275 Potentiometer, Spot-weld timer 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

24 CB1 056067188 Circuit Breaker 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

25 156006038 Base 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

26 Z1 058028016 Stabilizer 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

27 C1 056082091 Capacitor 1600 80μp VDC 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

28 058021141 Transformer, auxiliary 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

29 057079033 W Contactor 11Kw, 230VAC 50/60Hz 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

30 056126073 Fan motor assembly, consisting of 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

FM1 056126073 Fan motor, 230 VAC 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

356078037 Blade, 250Ø 27_ 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

31 000176106 Label, safety, caution moving parts 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

32 116117074 Cowling, fan assembly 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

33 000006393 Relay, Fan-On-Demand (optional) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

34 GSV1 056061042 Gas Solenoid Valve, 24VAC 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35 V56091091 Strain Relief, primary cable 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

V56018092 Strain Relief, nut 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

36 057014199 Primary cable, 3 core 4mm 230VAC 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

37 F1 056092039 Fuse, 20mm 10 Amp 500VAC 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

38 F1 056092094 Fuse Holder, 20mm 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

39 956142503 Label, gas connection and F1 fuse 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

40 116118171 Rear Panel 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

41 000186436 Washer, plastic 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

42 027061026 Hose, gas, braided, black 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

43 156005108 Spool, support 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

44 000186435 Hub 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

45 PC1 057084125 Motor Control 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

45 PC1 057084127 Motor Control, c/w optional, PC2 run-in, burn-back control 1. . . . . . . . . . . . . . . . . . . . . . .

46 156009075 Washer, flat 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

47 956142502 Label, run-in, wire burn-back, spot-timer and CB1 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

48 000207076 Knob pointer 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

49 178937A Label, safety, caution moving parts 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

50 056093022 Switch, push button, momentary contact, Jog/Purge 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

51 956142504 Nameplate, wire jog and gas purge 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

52 056020069 Knob pointer, voltage selection 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

53 156032064 Spring 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

54 156009079 Washer 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

55 156018033 Nut 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

56 156032128 Spring 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

57 000058427 Ring 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OM-223 194 Page 29

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OM-223 194 Page 30

Figure 7-3. Main Assembly for Migmatic 273

April 17, 2006

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