Lincoln Electric IDEALARC R3R-500 User Manual
Idealarc, Svm139-a, Service manual
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Table of contents
Document Outline
- Master TOC
- Safety
- Section A Installation
- Section B Operation
- Section C Accessories
- Section D Maintenance
- Section E Theory of Operation
- Section F Troubleshooting & Repair
- Symptoms
- Major physical or electrical dam-age is evident when the sheet metal cover(s) are removed.
- Machine is dead – no output – no fan – no pilot light.
- The machine is dead - not output -no fan - the pilot light is on. The amber temperature light is NOT on.
- The machine is dead – no output – no fan. The input contactor does not operate. The amber thermal...
- The input contactor (CR1) chatters.
- The machine has high welding output and no control.
- The machine has minimum (or very low) welding output and no control.
- The input contactor operates - the fan runs - the pilot light is on - but the machine has no welding output.
- The machine does not have maximum output.
- The machine will not shut off when the power switch is put in the OFF position.
- The output terminals are always electrically “hot.”
- The machine welds but reduces to a low output under load and remains there until the load is...
- The machine shuts off even when not under load or makes excessive noise like it is loaded.
- Poor arc characteristics.
- The welding arc is variable and sluggish.
- Section G - Electrical Diagrams