Table Of Contents - Lincoln Electric SQUARE WAVE TIG 255 IM520-B Operator's Manual

Safety .....................................................................................................................2-6
Installation................................................................................................................8-12
Technical Specifications ............................................................................................8
Input and Output Specifications
Cable and Fuse Sizes
Physical Dimensions
Location .....................................................................................................................9
Machine Grounding....................................................................................................9
Input Connections ....................................................................................................10
Output Connections .................................................................................................11
Operation................................................................................................................13-23
Safety Instructions ...................................................................................................13
Graphic Symbols ................................................................................................14-15
General Description .................................................................................................16
Design Features and Advantages............................................................................16
Welding Capability ...................................................................................................17
Limitations................................................................................................................17
Controls and Settings...............................................................................................18
Hand and Foot Amptrol Operation ...........................................................................20
Welding Operation ..............................................................................................20-23
Tig Welding Guidelines .......................................................................................20
Tig Welding Sequence of Operation (2 Step Mode) ...........................................21
Tig Welding Sequence of Operation (4 Step Mode) ...........................................22
Advanced Tig Welding Features.........................................................................22
Stick Welding ......................................................................................................23
Auxillary Power ........................................................................................................23
Overload Protection .................................................................................................23
Accessories.................................................................................................................24
Maintenance ...........................................................................................................25-26
Safety Precautions...................................................................................................25
Routine and Periodic Maintenance ..........................................................................25
General Assembly Exploded View...........................................................................26
Troubleshooting ....................................................................................................27-34
How To Use Troubleshooting Guide........................................................................27
Troubleshooting Guide .......................................................................................28-34
Wiring Diagrams ....................................................................................................35-36
Parts Manual .................................................................................................APPENDIX

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