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TABLE OF CONTENTS

3.21 Setup for SPOOL GUN MIG (GMAW) Welding with Gas Shielded MIG Wire . 3-17

3.22 Setup for LIFT TIG (GTAW) Welding ............................................................. 3-18

3.23 Setup for STICK (SMAW) Welding .............................................................. 3-19

3.24 Torch Adapter Thumb Screw Replacement ................................................... 3-20

SECTION 4: BASIC WELDING GUIDE .................................................................... 4-1

4.01 MIG (GMAW/FCAW) Basic Welding Technique ............................................... 4-1

4.02 MIG (GMAW/FCAW) Welding Troubleshooting ............................................... 4-5

4.03 Stick (SMAW) Basic Welding Technique ......................................................... 4-9

4.04 Effects of Stick Welding Various Materials ...................................................... 4-9

4.05 Stick (SMAW) Welding Troubleshooting ....................................................... 4-16

4.06 TIG (GTAW) Basic Welding Technique .......................................................... 4-18

4.07 TIG (GTAW) Welding Problems ..................................................................... 4-20

SECTION 5:

POWER SOURCE PROBLEMS AND ROUTINE SERVICE REQUIREMENTS .................... 5-1

5.01 Power Source Problems ................................................................................. 5-1

5.02 Routine Service............................................................................................... 5-2

5.03 Cleaning the Welding Power Source ............................................................... 5-3

5.04 Cleaning the Feed Rolls ................................................................................... 5-3

5.05 Volt-Ampere Curves ........................................................................................ 5-4

SECTION 6: KEY SPARE PARTS .......................................................................... 6-1

6.01 Tweco Fusion 140A MIG Gun Parts ................................................................ 6-1

6.02 Power Source ................................................................................................. 6-2

6.03 Hardware List ................................................................................................. 6-4

APPENDIX ................................................................................................... A-1

APPENDIX: FABRICATOR 141I CIRCUIT DIAGRAM .................................................... A-2

REVISION HISTORY ........................................................................................ A-4

INTERNATIONAL CONTACT INFORMATION ................................................. REAR COVER

ESAB fabricator 141i User Manual

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