Lincoln Electric IDEALARC DC-655 User Manual
Idealarc, Dc-655, Svm142-a
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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 and Repair
- Symptoms
- Major physical or electrical damage is evident.
- The machine is dead - the input contactor does not operate. The pilot light is not lit.
- The input contactor operates, but no welding output. The 115 VAC auxiliary supply is present at the receptacle.
- The input contactor chatters.
- The machine is dead - the input contactor does not operate. The pilot light is lit.
- The machine has welding output but no control.
- The machine does not have maximum output.
- The 115 VAC receptacle is not working. The machine’s welding output is normal.
- When not welding for a period of time, the machine shuts down.
- The output control potentiometer does not function when the output control switch (SW3) is in the...
- The remote output control unit does not function properly when the output control switch (SW3) is...
- The Thermal Protection Light is on but the fan does not run.
- The fan runs continuously.
- One or both of the optional digital meters are not lit.
- The optional digital meter is not working properly and/or the display is erratic.
- The analog meters are not reading correctly.
- Poor arc characteristics in all processes.
- Poor arc striking with semiautomatic or automatic wire feeders.
- The arc is variable or sluggish.
- The Arc Force Control (R4) has no effect on the arc.
- Section G - Electrical Diagrams