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TABLE OF CONTENTS
Page
Installation...............................................................................................................................Section A
Technical Specifications...............................................................................................................A-1
Safety Precautions. ......................................................................................................................A-2
Suitable Location..................................................................................................................A-2
Grinding ...............................................................................................................................A-2
Stacking...............................................................................................................................A-2
Lifting...................................................................................................................................A-2
Tilting...................................................................................................................................A-2
Enclosure Rating ..................................................................................................................A-2
Machine Grounding ..............................................................................................................A-2
Input Connection ..................................................................................................................A-3
Input Fuse and Supply Wire ..................................................................................................A-3
Input Voltage ........................................................................................................................A-3
Power Cord Replacement.............................................................................................................A-4
Connection Diagrams for the ASPECT™ 375 .................................................................A-6 thru A-8
Water Cooled TIG Torch With Wired Foot Pedal .....................................................................A-6
Air Cooled TIG Torch with Wired Foot Pedal ..........................................................................A-7
Stick (SMAW) Welding ..........................................................................................................A-8
Operation .................................................................................................................................Section B
Case Front Controls .....................................................................................................................B-1
Case Back Controls......................................................................................................................B-2
Graphic Symbols Appearing in this Machine or Manual ..........................................................B-3, B4
User Interface Controls.................................................................................................B-5 thru B-11
Polarity, Process, Output Control ..........................................................................................B-6
4-Step Functionality, Output On............................................................................................B-7
AC Waveshape .....................................................................................................................B-8
Sequencer Functions, Pulse Sequencer Functions ................................................................B-9
Memory Selection, Saving Memory Settings .......................................................................B-10
Memory Recall Settings, Status Lights................................................................................B-11
Setup Menu “GTAW” .................................................................................................................B-12
Setup Menu “SMAW”.................................................................................................................B-13
Setup Menu “SYS”.....................................................................................................................B-14
Appendix..........................................................................................................................B-15, B-16
Accessories .............................................................................................................................Section C
General Options / Accessories......................................................................................................C-1
Field Installed ..............................................................................................................................C-1
Maintenance............................................................................................................................Section D
Safety Precautions.......................................................................................................................D-1
Routine and Periodic Engine Maintenance....................................................................................D-1
Over Load Protection ...................................................................................................................D-1
Thermostatic Protection...............................................................................................................D-1
No Arc Protection.........................................................................................................................D-1
Auxiliary Power Circuit Breaker ....................................................................................................D-1
Troubleshooting.......................................................................................................................Section E
Safety Precautions .......................................................................................................................E-1
How to Use Troubleshooting Guide ...............................................................................................E-1
Troubleshooting Guide..................................................................................................E-2 thru E-10
Wiring Diagrams and Dimension Print ...................................................................................Section F
Parts List ........................................................................................................parts.lincolnelectric.com
Content/details may be changed or updated without notice. For most current Instruction Manuals, go to
parts.lincolnelectric.com.
