Lincoln Electric PRO-CUT 55 SVM140-A User Manual
Pro-cut, Svm140-a, Service manual
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Table of contents
Document Outline
- Master Table of Contents
- Safety
- Section A - Installation
- Section B - Operation
- Section C - Accessories
- Section D - Maintenance
- Section E - Theory of Operation
- Section F - Troubleshooting and Repair
- Symptoms
- Major physical or electrical damage is evident when the sheet metal cover(s) are removed.
- Machine is dead – no output – no fan – no status indicator lights.
- Machine is dead - not output - no status indicator lights - fans run.
- All status indicators remain immediately after power up.
- All the status lights begin to blink within 5 seconds of power up.
- The machine powers up properly, but there is no response when the gun trigger is pulled. Only the power LED is lit.
- When the torch trigger is pulled, air begins to flow; but no pilot arc is established.
- The air begins to flow when the torch trigger is pulled. There is a very brief pilot arc. (Normal is 3 seconds.) The sequence is repeated with subsequent trigger pulls.
- The cutting arc starts but sputters badly.
- Nuisance safety trips
- The pilot arc is normal, but the arc will not transfer to the workpiece.
- The Air Low LED is lit.
- The Safety LED is flashing.
- The Safety LED is lit and ready.
- The Thermal LED is lit.
- section G - Electrical Diagrams