TABLE OF CONTENTS
3.16
Feed Roller Pressure Adjustment .................................................................. 3-21
3.17
Changing the Feed Roll ................................................................................. 3-21
3.18
Wire Reel Brake ............................................................................................ 3-22
3.19
Setup For MIG (GMAW) Welding With Gas Shielded MIG Wire .................... 3-22
3.20
Setup For MIG (FCAW) Welding With Flux Core (Gasless) Wire ................... 3-23
3.21
Setup For SPOOL GUN MIG (GMAW) Welding With Gas Shielded MIG Wire 3-25
3.22
Setup For LIFT TIG (GTAW) Welding ............................................................. 3-26
3.23
Setup For STICK (SMAW) Welding .............................................................. 3-28
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 ....................................................... 4-8
4.04
Effects of Arc Welding Various Materials ........................................................ 4-8
4.04
STICK (SMAW) Welding Troubleshooting ..................................................... 4-16
4.05
TIG (GTAW) Basic Welding Technique .......................................................... 4-18
4.06
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 and Calibration Requirements ............................................... 5-2
5.03
Cleaning the Welding Power Source ............................................................... 5-5
5.04
Cleaning the Feed Rolls ................................................................................... 5-6
SECTION 6: KEY SPARE PARTS .......................................................................... 6-1
6.01
Tweco WeldSkill 220A MIG Gun ..................................................................... 6-1
6.02
Power Source Spare Parts .............................................................................. 6-2
APPENDIX 1: FABRICATOR 211i CIRCUIT DIAGRAM ................................................. A-1
