Tweco 161 S Inverter Arc Welder - Manual (Page 5)

TABLE OF CONTENTS
SECTION 4:OPERATION .................................................................................... 4-1
4.01 Front Panel ..................................................................................................... 4-1
4.02 Welding Current Control Explanation .............................................................. 4-2
4.03 STICK (SMAW) Electrode Polarity................................................................... 4-3
4.04 Effects of Stick Welding Various Materials ...................................................... 4-3
4.05 GTAW Electrode Polarity ................................................................................. 4-4
4.06 Guide for Selecting Filler Wire ........................................................................ 4-4
4.07 Tungsten Electrode Current Ranges ................................................................ 4-4
4.08 Shielding Gas Selection .................................................................................. 4-4
4.09 Tungsten Electrode Types ............................................................................... 4-4
4.10 TIG Welding Parameters for Steel ................................................................... 4-5
4.11 Arc Welding Practice ....................................................................................... 4-5
4.12 Welding Position ............................................................................................. 4-6
4.13 Joint Preparations ........................................................................................... 4-7
4.14 Arc Welding Technique ................................................................................... 4-8
4.15 The Welder ...................................................................................................... 4-8
4.16 Striking the Arc ............................................................................................... 4-8
4.17 Arc Length ...................................................................................................... 4-8
4.18 Rate of Travel .................................................................................................. 4-8
4.19 Making Welded Joints ..................................................................................... 4-9
4.20 Distortion ...................................................................................................... 4-11
4.21 The Cause of Distortion ................................................................................ 4-11
4.22 Overcoming Distortion Effects ...................................................................... 4-12
SECTION 5:SERVICE ....................................................................................... 5-1
5.01 Maintenance and Inspection ........................................................................... 5-1
5.02 STICK (SMAW) Welding Problems ................................................................ 5-2
5.03 TIG Welding Problems ................................................................................... 5-3
5.04 Power Source Problems ................................................................................ 5-4
APPENDIX 1: OPTIONS AND ACCESSORIES ............................................................ A-1
APPENDIX 2: REPLACEMENT PARTS ................................................................... A-2
APPENDIX 3: SYSTEM SCHEMATIC ..................................................................... A-4
LIMITED WARRANTY
WARRANTY SCHEDULE