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 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION

5

2-1.

Symboles utilisés

5

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

5

2-3. Dangers supplémentaires en relation avec l’installation, le fonctionnement et la maintenance

7

2-4. Proposition californienne 65 Avertissements

7

2-5. Principales normes de sécurité

8

2-6.

Information EMF

8

SECTION 3 − SPECIFICATIONS

9

3-1.

Specifications

9

3-2. Duty Cycle And Overheating

9

3-3.

Volt-Ampere Curves

10

SECTION 4 − INSTALLATION

11

4-1.

Installing Work Clamp

11

4-2.

Process/Polarity Table

11

4-3.

Polarity

11

4-4. Installing Wire Spool And Adjusting Hub Tension

12

4-5. Selecting A Location And Connecting Input Power For 115 VAC Model

13

4-6. Installing Contact Tip And Nozzle

14

4-7.

Threading Welding Wire

15

SECTION 5 − OPERATION

16

5-1.

Controls

16

5-2.

Operating The Gun

17

SECTION 6 − MAINTENANCE &TROUBLESHOOTING

18

6-1.

Routine Maintenance

18

6-2.

Overload Protection

18

6-3.

Drive Motor Protection

18

6-4. Changing Drive Roll Or Wire Inlet Guide

19

6-5. Replacing Gun Contact Tip

20

6-6.

Cleaning Gun Liner

21

6-7.

Replacing Gun Liner

22

6-8.

Troubleshooting Table

24

SECTION 7 − ELECTRICAL DIAGRAM

25

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Hobart 125 EZ, H-9B manual Table of Contents