Miller MATIC 175 M-10 GUN Owner's manual

Brand: Miller

Model: MATIC 175 M-10 GUN

Category: Welding System

Type: Owner's manual

This manual is also suitable for

Visit our website at

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Processes

OM-1324 204 408A

November 2001

Arc Welding Power Source And

Wire Feeder

Description

MIG (GMAW) Welding

Flux Cored (FCAW) Welding

Millermatic

135/175

And M-10 Gun

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. To locate your nearest

distributor or service agency call 1-800-4-A-Miller,

or visit us at www.MillerWelds.com on the web.

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.

Miller is the first welding

equipment manufacturer in

the U.S.A. to be registered to

the ISO 9001 Quality System

Standard.

Working as hard as you do

– every power source from

Miller is backed by the most

hassle-free warranty in the

business.

From Miller to You

Miller offers a Technical

Manual which provides

more detailed service and

parts information for your

unit. To obtain a Technical

Manual, contact your local

distributor. Your distributor

can also supply you with

Welding Process Manuals

such as SMAW, GTAW,

GMAW, and GMAW-P.

The following terms are

used interchangeably

throughout this manual:

MIG=GMAW

TABLE OF CONTENTS

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

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

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

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

1-4. Principal Safety Standards 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-5. EMF Information 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 1 – CONSIGNES DE SECURITE – LIRE AVANT UTILISATION 5. . . . . . . . . . . . . . . . . . . . .

1-1. Signification des symboles 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2. Dangers relatifs au soudage à l’arc 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-3. Dangers supplémentaires en relation avec l’installation, le fonctionnement

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

1-4. Principales normes de sécurité 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-5. Information sur les champs électromagnétiques 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 2 – SPECIFICATIONS 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1. Specifications 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2. Duty Cycle And Overheating 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3. Volt-Ampere Curves 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 3 – INSTALLATION 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1. Installing Welding Gun 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2. Installing Work Clamp 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3. Work Cable Routing Inside Unit 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4. Process/Polarity Table 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5. Changing Polarity 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-6. Installing Gas Supply 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-7. Selecting A Location And Connecting Input Power For 115 VAC Model 15. . . . . . . . . . . . . . . . .

3-8. Selecting A Location And Connecting Input Power For 230 VAC Model 16. . . . . . . . . . . . . . . .

3-9. Electrical Service Guide For 230 VAC Model 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-10. Installing Wire Spool And Adjusting Hub Tension 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-11. Threading Welding Wire 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 4 – OPERATION 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-1. Controls 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2. Weld Parameter Chart For 115 VAC Model 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3. Weld Parameter Chart For 230 VAC Model 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 5 – MAINTENANCE &TROUBLESHOOTING 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-1. Routine Maintenance 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-2. Overload Protection 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-3. Drive Motor Protection And Tip Saver/Short Circuit Protection 24. . . . . . . . . . . . . . . . . . . . . . . .

5-4. Changing Drive Roll Or Wire Inlet Guide 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-5. Replacing Gun Contact Tip 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-6. Cleaning Or Replacing Gun Liner 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-7. Replacing Switch And/Or Head Tube 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-8. Troubleshooting Table 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 6 – ELECTRICAL DIAGRAM 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 7 – MIG WELDING (GMAW) GUIDELINES 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-1. Typical MIG Process Connections 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-2. Typical MIG Process Control Settings 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-3. Holding And Positioning Welding Gun 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-4. Conditions That Affect Weld Bead Shape 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-5. Gun Movement During Welding 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-6. Poor Weld Bead Characteristics 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-7. Good Weld Bead Characteristics 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-8. Troubleshooting – Excessive Spatter 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-9. Troubleshooting – Porosity 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-10. Troubleshooting – Excessive Penetration 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-11. Troubleshooting – Lack Of Penetration 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-12. Troubleshooting – Incomplete Fusion 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-13. Troubleshooting – Burn-Through 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-14. Troubleshooting – Waviness Of Bead 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-15. Troubleshooting – Distortion 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-16. Common MIG Shielding Gases 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 8 – PARTS LIST 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

WARRANTY

OM-1324

WARNING

This product, when used

for welding or cutting,

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.)

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OM-1324 Page 1

SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING

som _nd_4/98

1-1. Symbol Usage

Means Warning! Watch Out! There are possible hazards

with this procedure! The possible hazards are shown in

the adjoining symbols.

Y Marks a special safety message.

. Means “Note”; not safety related.

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.

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 1-4. 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

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 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.

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 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 after removal of

input power on inverters.

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

capacitors according to instructions in Maintenance Section

before touching any parts.

Welding produces fumes and gases. Breathing

these fumes and gases can be hazardous to your

health.

FUMES AND GASES can be hazardous.

D Keep your head out of the fumes. Do not breathe the fumes.

D If inside, ventilate the area and/or use exhaust at the arc to remove

welding fumes and gases.

D If ventilation is poor, use an approved air-supplied respirator.

D Read 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 watch-

person nearby. Welding fumes and gases can displace air and

lower the oxygen level causing injury or death. Be sure the breath-

ing air is safe.

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 if necessary, while wearing an

air-supplied respirator. The coatings and any metals containing

these elements can give off toxic fumes if welded.

OM-1324 Page 2

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.

ARC RAYS can burn eyes and skin.

D Wear a welding helmet fitted with a proper shade of filter 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 and

glare; warn others not to watch the arc.

D Wear protective clothing made from durable, flame-resistant mate-

rial (leather and wool) and foot protection.

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.

WELDING can cause fire or explosion.

D Protect yourself and others from flying sparks and hot metal.

D Do not weld where flying sparks can strike flammable material.

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 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 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.

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.

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.

HOT PARTS can cause severe burns.

D Do not touch hot parts bare handed.

D Allow cooling period before working on gun or

torch.

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.

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.

CYLINDERS can explode if damaged.

D Protect compressed gas cylinders from excessive heat, mechani-

cal shocks, 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 Read and follow instructions on compressed gas cylinders,

associated equipment, and CGA publication P-1 listed in Safety

Standards.

OM-1324 Page 3

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.

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.

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.

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 installa-

tion.

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.

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.

1-4. Principal Safety Standards

Safety in Welding and Cutting, ANSI Standard Z49.1, from American

Welding Society, 550 N.W. LeJeune Rd, Miami FL 33126

Safety and Health Standards, OSHA 29 CFR 1910, from Superinten-

dent of Documents, U.S. Government Printing Office, Washington, D.C.

20402.

Recommended Safe Practices for the Preparation for Welding and Cut-

ting of Containers That Have Held Hazardous Substances, American

Welding Society Standard AWS F4.1, from American Welding Society,

550 N.W. LeJeune Rd, Miami, FL 33126

National Electrical Code, NFPA Standard 70, from National Fire Protec-

tion Association, Batterymarch Park, Quincy, MA 02269.

Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,

from Compressed Gas Association, 1235 Jefferson Davis Highway,

Suite 501, Arlington, VA 22202.

Code for Safety in Welding and Cutting, CSA Standard W117.2, from

Canadian Standards Association, Standards Sales, 178 Rexdale

Boulevard, Rexdale, Ontario, Canada M9W 1R3.

Safe Practices For Occupation And Educational Eye And Face

Protection, ANSI Standard Z87.1, from American National Standards

Institute, 1430 Broadway, New York, NY 10018.

Cutting And Welding Processes, NFPA Standard 51B, from National

Fire Protection Association, Batterymarch Park, Quincy, MA 02269.

OM-1324 Page 4

1-5. 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 electro-

magnetic fields. There has been and still is some concern about such

fields. However, after examining more than 500 studies spanning 17

years of research, a special blue ribbon committee of the National

Research Council concluded that: “The body of evidence, in the

committee’s judgment, has not demonstrated that exposure to power-

frequency electric and magnetic fields is a human-health hazard.”

However, studies are still going forth and evidence continues to be

examined. Until the final conclusions of the research are reached, you

may wish to minimize your exposure to electromagnetic fields when

welding or cutting.

To reduce magnetic fields in the workplace, use the following

procedures:

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 opera-

tor as practical.

5. Connect work clamp to workpiece as close to the weld as possi-

ble.

About Pacemakers:

Pacemaker wearers consult your doctor first. If cleared by your doctor,

then following the above procedures is recommended.

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OM-1324 Page 8

1-4. Principales normes de sécurité

Safety in Welding and Cutting, norme ANSI Z49.1, de l’American Wel-

ding Society, 550 N.W. Lejeune Rd, Miami FL 33126

Safety and Health Sandards, OSHA 29 CFR 1910, du Superintendent

of Documents, U.S. Government Printing Office, Washington, D.C.

20402.

Recommended Safe Practice for the Preparation for Welding and Cut-

ting of Containers That Have Held Hazardous Substances, norme AWS

F4.1, de l’American Welding Society, 550 N.W. Lejeune Rd, Miami FL

33126

National Electrical Code, NFPA Standard 70, de la National Fire Protec-

tion Association, Batterymarch Park, Quincy, MA 02269.

Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,

de la Compressed Gas Association, 1235 Jefferson Davis Highway,

Suite 501, Arlington, VA 22202.

Règles de sécurité en soudage, coupage et procédés connexes, norme

CSA W117.2, de l’Association canadienne de normalisation, vente de

normes, 178 Rexdale Boulevard, Rexdale (Ontario) Canada M9W 1R3.

Safe Practices For Occupation And Educational Eye And Face Protec-

tion, norme ANSI Z87.1, de l’American National Standards Institute,

1430 Broadway, New York, NY 10018.

Cutting and Welding Processes, norme NFPA 51B, de la National Fire

Protection Association, Batterymarch Park, Quincy, MA 02269.

1-5. Information sur les champs électromagnétiques

Données sur le soudage électrique et sur les effets, pour l’organisme,

des champs magnétiques basse fréquence

Le courant de soudage, pendant son passage dans les câbles de sou-

dage, causera des champs électromagnétiques. Il y a eu et il y a encore

un certain souci à propos de tels champs. Cependant, après avoir ex-

aminé plus de 500 études qui ont été faites pendant une période de

recherche de 17 ans, un comité spécial ruban bleu du National Re-

search Council a conclu: “L’accumulation de preuves, suivant le

jugement du comité, n’a pas démontré que l’exposition aux champs

magnétiques et champs électriques à haute fréquence représente un

risque à la santé humaine”. Toutefois, des études sont toujours en cours

et les preuves continuent à être examinées. En attendant que les con-

clusions finales de la recherche soient établies, il vous serait

souhaitable de réduire votre exposition aux champs électromagnéti-

ques pendant le soudage ou le coupage.

Afin de réduire les champs électromagnétiques dans l’environnement

de travail, respecter les consignes suivantes :

1 Garder les câbles ensembles en les torsadant ou en les

attachant avec du ruban adhésif.

2 Mettre tous les câbles du côté opposé de l’opérateur.

3 Ne pas courber pas et ne pas entourer pas les câbles autour de

votre corps.

4 Garder le poste de soudage et les câbles le plus loin possible de

vous.

5 Relier la pince de masse le plus près possible de la zone de

soudure.

Consignes relatives aux stimulateurs cardiaques :

Les personnes qui portent un stimulateur cardiaque doivent avant tout

consulter leur docteur. Si vous êtes déclaré apte par votre docteur, il est

alors recommandé de respecter les consignes ci–dessus.

OM-1324 Page 9

SECTION 2 – SPECIFICATIONS

2-1. Specifications

A. 115 VAC Model

Rated Welding

Output

Amperage Range

Maximum

Open-Circuit

Voltage DC

Amperes Input at

Rated Load Out-

put 115 V, 60 Hz,

Single-Phase

KVA KW

Weight

W/ Gun

Overall

Dimensions

90 A @ 18

Volts DC, 20%

Duty Cycle

63 A @ 21

Volts DC, 20%

Duty Cycle*

30 – 135

15*

2.88

2.20*

2.40

1.77*

60 lb

(27 kg)

Length: 17-1/2 in

(444 mm)

Width: 10-5/8 in

(273 mm)

Height: 15-3/4 in

(400 mm)

Solid Stainless Flux Cored Wire Feed Speed Range

Wire Type

And Dia

.023 - .035 in

(0.6 - 0.9

mm)

.023 - .030 in

(0.6 - 0.8

mm)

.030 - .045 in

(0.8 - 1.1 mm)

170 – 850 IPM (4.3 – 21.6 m/min) At No Load

75 – 750 IPM (1.9 – 19.1 m/min) Feeding Wire

* CSA Rating

B. 230 VAC Model

Rated Welding

Output

Amperage

Range

Maximum Open-

Circuit Voltage

Amperes Input at

Rated Load Output

230 V, 50/60 Hz,

Single-Phase

KVA KW

Weight

W/ Gun

Overall

Dimensions

130 A @ 20 Volts

DC, 30% Duty Cycle

At 60 Hz Input

30 – 175

30 19.5 4.60 3.75

73 lb

(33.0 kg)

Length: 17-1/2 in

(444 mm)

Width: 10-5/8 in

(273 mm)

Height: 15-3/4 in

(400 mm)

Wire Type

Solid/

Stainless

Flux Cored

Wire Feed Speed Range

Wire Type

And Dia

.023 – .035 in

(0.6 – 0.9 mm)

.030 – .045 in

(0.8 – 1.2 mm)

150 – 900 IPM (3.8 – 23.0 m/min) At No Load

75 – 850 IPM (1.9 – 21.6 m/min) Feeding Wire

OM-1324 Page 10

2-2. Duty Cycle And Overheating

Duty Cycle is percentage of 10 min-

utes 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.

Y Exceeding duty cycle can

damage unit or gun and void

warranty.

Overheating

A or V

Reduce Duty Cycle

Minutes

duty1 4/95 – 203 771 / 203 796

A. 115 VAC

Model

B. 230 VAC

Model

3 Minutes Welding 7 Minutes Resting

20% duty cycle at 90 amps

30% duty cycle at 130 amps, 60 Hz

20% duty cycle at 130 amps, 50 Hz

2 Minutes Welding 8 Minutes Resting

100

120

140

10 20 30 40 50 60 70 80 90 100

RatedOutput

Output Amperes

Duty Cycle %

100

120

140

160

180

200

10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Output Amperes

Duty Cycle %

OM-1324 Page 11

2-3. 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.

ssb1.1 10/91 – 203 772 / 203 797

A. 115 VAC Model

B. 230 VAC Model

0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100. 110. 120. 130.

AMPERAGE

VOLTAGE

Voltage Control @ 10

Voltage Control @ 9

Voltage Control @ 8

Voltage Control @ 7

Voltage Control @ 6

Voltage Control @ 5

Voltage Control @ 4

Voltage Control @ 3

Voltage Control @ 2

Voltage Control @ 1

Voltage Control @ 0

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180

AMPERAGE

VOLTAGE

Voltage Control @ 10

Voltage Control @ 9

Voltage Control @ 8

Voltage Control @ 7

Voltage Control @ 6

Voltage Control @ 5

Voltage Control @ 4

Voltage Control @ 3

Voltage Control @ 2

Voltage Control @ 1

Voltage Control @ 0

OM-1324 Page 12

SECTION 3 – INSTALLATION

3-1. Installing Welding Gun

Ref. 802 982 / Ref. 801 987

1 Drive Assembly

2 Gun Securing Knob

3 Gun End

Loosen knob. Insert gun end

through opening until it bottoms

against drive assembly. Tighten

knob.

4 Gun Trigger Plug

Insert into receptacle, and tighten

threaded collar.

Close door.

3-2. Installing Work Clamp

1 Nut

2 Work Cable From Unit

3 Work Clamp

4 Screw

5 Work Clamp Tabs

Bend tabs around work cable.

802 456

Tools Needed:

3/8, 7/16 in

3-3. Work Cable Routing Inside Unit

Ref. 802 982

1 Work Cable

2 Output Terminal Block

Insert work cable through opening

in front panel and route along back

of front panel to output terminal

block.

Close door.

OM-1324 Page 13

3-4. Process/Polarity Table

Cable Connections

Process Polarity

Cable To Gun Cable To Work

GMAW – Solid wire with shield-

ing gas

DCEP – Reverse polarity Connect to positive (+) out-

put 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

3-5. Changing Polarity

1 Lead Connections For Direct

Current Electrode Positive

(DCEP)

2 Lead Connections For Direct

Current Electrode Negative

(DCEN)

Always read and follow wire

manufacturer’s recommended po-

larity, and see Section 3-4.

Close door.

Ref. 203 501

CHANGING POLARITY

DCEP

Electrode POSITIVE

FOR SOLID WIRE

DCEN

Electrode Negative

Flux Core Wire

WorkClamp

Le ad

Wire Drive

Le ad

WorkClamp

Le ad

Wire Drive

Le ad

CHANGING POLARITY

DCEP

Electrode Positive

FOR SOLID WIRE

DCEN

Electrode Negative

Flux Core Wire

WorkClamp

Le ad

Wire Drive

Le ad

WorkClamp

Le ad

Wire Drive

Le ad

OM-1324 Page 14

3-6. Installing Gas Supply

Obtain gas cylinder and chain to

running gear, wall, or other station-

ary support so cylinder cannot fall

and break off valve.

1 Cap

2 Cylinder Valve

Remove cap, stand to side of valve,

and open valve slightly. Gas flow

blows dust and dirt from valve.

Close valve.

3 Cylinder

4 Regulator/Flowmeter

Install so face is vertical.

5 Regulator/Flowmeter Gas

Hose Connection

6 Welding Power Source Gas

Hose Connection

Connect customer supplied gas

hose between regulator/flowmeter

gas hose connection, and fitting on

rear of welding power source.

7 Flow Adjust

Typical flow rate is 20 cfh (cubic feet

per hour). Check wire manufactur-

er’s recommended flow rate.

8CO

Adapter (Customer Sup-

plied)

9 O-Ring (Customer Supplied)

Install adapter with O-ring between

regulator/flowmeter and CO

cylinder.

Tools Needed:

Gas

8 9

Argon Gas

802 028 / 802 441

5/8, 1-1/8 in

OM-1324 Page 15

3-7. Selecting A Location And Connecting Input Power For 115 VAC Model

1 Rating Label

2 Grounded Receptacle

A 115 volt, 20 ampere individual

branch circuit protected by time-de-

lay fuses or circuit breaker is re-

quired.

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).

Y Special installation may be

required where gasoline or

volatile liquids are present –

see NEC Article 511 or CEC

Section 20.

18 in

(460 mm)

18 in

(460 mm)

Ref. 802 980

OM-1324 Page 16

3-8. Selecting A Location And Connecting Input Power For 230 VAC Model

1 Rating Label

Supply correct input power.

2 Plug

3 Receptacle

Connect plug to receptacle.

4 Line Disconnect Device

See Section 3-9.

Y Special installation may be

required where gasoline or

volatile liquids are present –

see NEC Article 511 or CEC

Section 20.

ssb2.2* 1/94 – 802 980 / Ref. 802 443 / Ref. 802 085

18 in (457 mm) of

space for airflow

230 VAC, 1

Y Always connect

grounding

conductor first.

= GND/PE

Y Do not move or operate unit

where it could tip.

OM-1324 Page 17

3-9. Electrical Service Guide For 230 VAC Model

Input Voltage

230

Input Amperes At Rated Output

Max Recommended Standard Fuse Or Circuit Breaker Rating In Amperes

Min Input Conductor Size In AWG/Kcmil

Max Recommended Input Conductor Length In Feet (Meters)

66 (20)

Min Grounding Conductor Size In AWG/Kcmil

Reference: 1996 National Electrical Code (NEC) S-0092-J

3-10. Installing Wire Spool And Adjusting Hub Tension

When a slight force is needed

to turn spool, tension is set.

1/2 in

Tools Needed:

802 971 / 803 012 / 803 013

Installing 8 in (203 mm) Wire Spool

Installing 4 in (102 mm) Wire Spool

Retaining ring used

with 8 in (203 mm)

spool only.

Adapter used with

8 in (203 mm)

spool only.

When a slight force is needed

to turn spool, tension is set.

OM-1324 Page 18

3-11. Threading Welding Wire

1 Wire Spool

2 Welding Wire

3 Inlet Wire Guide

4 Pressure Adjustment Knob

5 Drive Roll

6 Gun Conduit Cable

Lay gun cable out straight.

Tools Needed:

Pull and hold wire; cut off end.

4 in

(102 mm)

Remove gun nozzle and contact tip.

Open pressure assembly.

Push wire thru guides into gun;

continue to hold wire.

Close and tighten pressure

assembly, and let go of wire.

. Hold wire tightly to keep it

from unraveling.

Ref. 802 444 / Ref. 205 837

WOOD

Feed wire to check drive roll pressure.

Tighten knob enough to prevent slipping.

Cut off wire. Close door.

Press gun trigger until wire comes

out of gun.

Reinstall contact tip and nozzle.

Turn power on.

INPUT

POWER

Tighten

. Use pressure indicator

scale to set a desired

drive roll pressure.

Pressure

Indicator

Scale

Tighten

6 in

(150 mm)

OM-1324 Page 19

SECTION 4 – OPERATION

4-1. Controls

1 Wire Speed Control

Turn control clockwise to increase wire

feed speed. (see weld parameter chart in

welding power source or Sections 4-2 and

4-3, as applicable).

2 Voltage Control

Turn control clockwise to increase voltage

(see weld parameter chart in welding

power source or Sections 4-2 and 4-3, as

applicable).

3 Power Switch

4 Over Temperature Light

5 Gun Trigger Receptacle

Ref. 203 498

WIRE SPEED

VOLTAGE

TRI GGER OVER TEM P P OWER

OFF

MILLER ELECTRIC MFG. CO. APPLETON, WI

MADE IN

OM-1324 Page 20

4-2. Weld Parameter Chart For 115 VAC Model

Note: 1. Settings are approxim ate. Adj ust as required.

2. ”––” Means not recommended.

Steel

Stainless

Steel

WhatMaterial

You are Welding

Gas Mixture

75% Ar / 25% CO

(Ar / CO

produces less

spatter – better overall

appearance)

100% CO

No Shielding Gas

required. Good for windy

or outdoor applications.

May require an oversized

tip for improved feedibility.

Tri–Mix

90% He / 7.5% Ar / 2.5% CO

Solid Wire

(or Hard)

ER70S–6

(DCEP)

Solid Wire

(or Hard)

ER70S–6

(DCEP)

Flux Core

E71T–11

(DCEN)

Stainless

Steel

(DCEP)

Suggested

Shielding Gases

(

Flow Rate of 20–30cfh

)

.024” (0.6 m m )

.030” (0.8 m m )

.035” (0.9 m m )

.024” (0.6 m m )

.030” (0.8 m m )

.035” (0.9 m m )

.030” (0.8 m m )

.035” (0.9 m m )

.045” (1.2 m m )

.030” (0.8 m m )

Wire Size

(

Diameters

)

Suggested

Wire Types,

Polarity

Selecting Wire, Gas and Control Settings

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Model: MATIC 175 M-10 GUN

Category: Welding System

Type: Owner's manual

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