Tweco 201 ts Thermal Arc - Manual (Page 5)

TABLE OF CONTENTS
SECTION 4:
OPERATION ........................................................................................... 4-1
4.01 Front Panel ..................................................................................................... 4-1
4.02 Welding Current Control Explanation .............................................................. 4-4
4.03 STICK (SMAW) Electrode Polarity................................................................... 4-5
4.04 Effects of Stick Welding Various Materials ...................................................... 4-5
4.05 GTAW Electrode Polarity ................................................................................. 4-6
4.06 Guide for Selecting Filler Wire ........................................................................ 4-6
4.07 Tungsten Electrode Current Ranges ................................................................ 4-6
4.08 Shielding Gas Selection .................................................................................. 4-6
4.09 Tungsten Electrode Types ............................................................................... 4-7
4.10 TIG Welding Parameters for Steel ................................................................... 4-7
4.11 Arc Welding Practice ....................................................................................... 4-7
4.12 Welding Position ............................................................................................. 4-8
4.13 Joint Preparations ........................................................................................... 4-9
4.14 Arc Welding Technique ................................................................................. 4-10
4.15 The Welder .................................................................................................... 4-10
4.16 Striking the Arc ............................................................................................. 4-10
4.17 Arc Length .................................................................................................... 4-10
4.18 Rate of Travel ................................................................................................ 4-11
4.19 Making Welded Joints ................................................................................... 4-11
4.20 Distortion ...................................................................................................... 4-13
4.21
The Cause of Distortion ................................................................................ 4-13
4.22 Overcoming Distortion Effects ...................................................................... 4-14
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
SECTION 6:
KEY SPARE PARTS ................................................................................... 6-1
6.01 Replacement Parts-161 STL ................................................................................. 6-2
6.02 Replacement Parts-201 TS .................................................................................. 6-4
APPENDIX 1: OPTIONS AND ACCESSORIES
APPENDIX 2: SYSTEM SCHEMATIC - 161 STL
APPENDIX 3: SYSTEM SCHEMATIC -201 TS
LIMITED WARRANTY
WARRANTY SCHEDULE 3