Hobart Welding Products H-9B Gun User Manual

OM-225 333A 2006−06

Processes

Description

Semi-Automatic, Air-Cooled Flux Cored (FCAW) And MIG (GMAW) Welding Gun

H-9B Gun

Flux Cored (FCAW) Welding

MIG (GMAW) Welding (Optional)

File: Flux Cored (FCAW)

From Hobart to You

Thank you and congratulations on choosing Hobart. 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.

This Owner’s Manual is designed to help you get the most out of your Hobart 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 Hobart 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

Hobart is registered to the ISO 9001:2000 Quality System Standard.

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 Hobart is backed by the best warranty in the business.

Hobart Welders manufactures a full line of welders and welding related equipment. For information on other quality Hobart products, contact your local Hobart distributor to receive the latest full line catalog or individual specification sheets.

To locate your nearest distributor or service agency call 1-877-Hobart1 or visit our website at www.HobartWelders.com.

For Technical Help call 1-800-332-3281.

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TABLE OF CONTENTS

SECTION 1 −SAFETY PRECAUTIONS FOR FCAW AND

GMAW WELDING GUNS − READ BEFORE USING 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

1-2. FCAW And GMAW Gun Hazards 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

EMF INFORMATION 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 2 − SAFETY INFORMATION 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

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

3-3. Installing Gun Into Welding Power Source 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4. Installing Contact Tip And Nozzle 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5. Threading Welding Wire 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 4 − OPERATION 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-1. Operating The Gun 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 5 − MAINTENANCE & TROUBLESHOOTING 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-1. Replacing Gun Contact Tip 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-2. Cleaning Gun Liner 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-3. Replacing Gun Liner 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-4. Replacing Switch/Handle 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-5. Removing Gun From Welding Power Source 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-6. Routine Maintenance 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-7. Troubleshooting 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 6 − PARTS LIST 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

WARRANTY

SECTION 1 −SAFETY PRECAUTIONS FOR FCAW AND

GMAW WELDING GUNS − READ BEFORE USING

1-1. Symbol Usage

SR7_8/03

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

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.

Y Marks a special safety message.

. Means NOTE; not safety related.

1-2. FCAW And GMAW Gun Hazards

WARNING

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.

GMAW WELDING can be hazardous.

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.

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.

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.

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.

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EMF INFORMATION

NOTE

The following is a quotation from the General Conclusions Section of the U.S. Congress, Office of Technology Assessment, Biological

Effects of Power Frequency Electric & Magnetic Fields − Background Paper, OTA-BP-E-53 (Washington, DC: U.S.

Government Printing Office, May 1989): “. . . there is now a very large volume of scientific findings based on experiments at the cellular level and from studies with animals and people which clearly establish that low frequency magnetic fields can interact with, and produce changes in, biological systems. While most of this work is of very high quality, the results are complex. Current scientific understanding does not yet allow us to interpret the evidence in a single coherent framework. Even more frustrating, it does not yet allow us to draw definite conclusions about questions of possible risk or to offer clear science-based advice on strategies to minimize or avoid potential risks.”

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

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 the body.

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

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

About Pacemakers:

The above procedures are among those also normally recommended for pacemaker wearers. Consult your doctor for complete information.

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