Miller Electric M-25 User Manual

0 (0)

Visit our website at www.MillerWelds.com

OM-227 796A

2006−05

Processes

MIG (GMAW) Welding

Flux Cored (FCAW) Welding

Description

Semi-Automatic, Air-Cooled

MIG (GMAW) Welding Gun

MIGmaticM-25

File: MIG (GMAW)

Miller is the first welding equipment manufacturer in the U.S.A. to be registered to the ISO 9001:2000 Quality System Standard.

From Miller to You

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

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

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

This Owner’s Manual is designed to help you get the most out of your Miller products. Please take time to read the Safety precautions. They will help you protect yourself against potential hazards on the worksite.

We’ve made installation and operation quick and easy. With Miller you can count on years of reliable service with proper maintenance. And if for some reason the unit needs repair, there’s a Troubleshooting section that will help you figure out what the problem is. The parts list will then help you to decide the exact part you may need to fix the problem. Warranty and service information for your particular model are also provided.

Miller Electric manufactures a full line

of welders and welding related equipment. For information on other quality Miller

products, contact your local Miller distributor to receive the latest full line catalog or individual specification sheets. To locate your nearest distributor or service agency call 1-800-4-A-Miller, or visit us at www.MillerWelds.com on the web.

Mil_Thank 2005−04

Working as hard as you do − every power source from Miller is backed by the most hassle-free warranty in the business.

TABLE OF CONTENTS

SECTION 1 −SAFETY PRECAUTIONS FOR GMAW WELDING GUNS − READ BEFORE USING . . . . . . . .

1

1-1.

Symbol Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1

1-2.

GMAW Gun Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1

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

2

EMF INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2

SECTION 2

− SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3

SECTION 3

− INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3

3-1.

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3

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

4

3-3.

Installing Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4

SECTION 4

− OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5

4-1.

Operating The Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5

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

6

5-1. Removing Nozzle, Contact Tip, And Adapter, Changing Liner, And Cleaning Gun Casing . . . . . . . . .

6

5-2. Replacing Switch And/Or Head Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7

5-3.

Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8

5-4.

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8

SECTION 6

− PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9

WARRANTY

 

Miller Electric M-25 User Manual

SECTION 1 −SAFETY PRECAUTIONS FOR GMAW WELDING GUNS − READ BEFORE USING

SR7_8/03

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 and HOT PARTS hazards.

Consult symbols and related instructions below for necessary actions to avoid the hazards.

1-2. GMAW Gun Hazards

WARNING

GMAW WELDING can be hazardous.

PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH. KEEP CHILDREN AWAY. PACEMAKER WEARERS KEEP AWAY UNTIL CONSULTING YOUR DOCTOR.

In welding, as in most jobs, exposure to certain hazards occurs. Welding is safe when precautions are taken. The safety information given below is only a summary of the more complete safety information found in the wire feeder and welding power source Owner’s Manuals. Read and follow all safety precautions.

HAVE ALL INSTALLATION, OPERATION, MAINTENANCE, AND REPAIR WORK PERFORMED ONLY BY QUALIFIED PEOPLE.

ELECTRIC SHOCK can kill.

1.Always wear dry insulating gloves.

2.Insulate yourself from work and ground.

3.Do not touch live electrode or electrical parts.

4.Repair or replace worn, damaged, or cracked gun or cable insulation.

5.Turn off welding power source before changing contact tip or gun parts.

6.Keep all covers and handle securely in place.

FUMES AND GASES can be hazardous to your health.

1.Keep your head out of the fumes.

2.Ventilate area, or use breathing device.

3.Read Material Safety Data Sheets (MSDSs) and manufacturer’s instructions for material used.

WELDING can cause fire or explosion.

1.Do not weld near flammable material.

2.Do not weld on closed containers.

3.Watch for fire; keep extinguisher nearby.

ARC RAYS can burn eyes and skin.

1.Wear welding helmet with correct shade of filter.

2.Wear correct eye and body protection.

3.Cover exposed skin with spatter-resistant clothing.

HOT SURFACES can burn skin.

1.Allow gun to cool before touching.

2.Do not touch hot metal.

3.Protect hot metal from contact by others.

NOISE can damage hearing; SOME APPLICATIONS, SUCH AS PULSING, are noisy.

1.Check for noise level limits exceeding those specified by OSHA.

2.Use approved ear plugs or ear muffs if noise level is high.

3.Warn others nearby about noise hazard.

WELDING WIRE can cause puncture wounds.

1.Keep hands and body away from gun tip when trigger is pressed.

BUILD UP OF GAS can injure or kill

1.Shut off shielding gas supply when not in use.

2.Always ventilate confined spaces or use approved air-supplied respirator.

OM-227 796 Page 1

Loading...
+ 11 hidden pages