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

4

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

8

2-5. Principales normes de sécurité

9

2-6.

Information EMF

9

SECTION 3 − DEFINITIONS

11

3-1.

Symbols And Definitions

11

SECTION 4 − SPECIFICATIONS

11

4-1.

Specifications

11

4-2. Duty Cycle And Overheating

12

4-3.

Volt-Ampere Curves

13

SECTION 5 − INSTALLATION

14

5-1.

Installing Welding Gun

14

5-2.

Installing Work Clamp

14

5-3.

Process/Polarity Table

15

5-4.

Changing Polarity

15

5-5.

Installing Gas Supply

16

5-6. Selecting A Location And Connecting Input Power

17

5-7. Installing Wire Spool And Adjusting Hub Tension

18

5-8. Installing Contact Tip And Nozzle

19

5-9.

Threading Welding Wire

20

SECTION 6 − OPERATION

22

6-1.

Controls

22

6-2.

Weld Parameter Chart

24

SECTION 7 − MAINTENANCE & TROUBLESHOOTING

26

7-1.

Routine Maintenance

26

7-2.

Overload Protection

26

7-3.

Drive Motor Protection

26

7-4. Changing Drive Roll Or Wire Inlet Guide

27

7-5. Replacing Gun Contact Tip

27

7-6. Cleaning Or Replacing Gun Liner

28

7-7. Replacing Switch And/Or Head Tube

29

7-8.

Troubleshooting Table

30

SECTION 8 − ELECTRICAL DIAGRAM

31

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Hobart Welding Products OM-925, 217 694E manual Table of Contents