Lincoln Electric SVM179-B User Manuals

Table of Contents

• Master Table of Contents

  6
• Safety

  2
• Section A - Installation

  7
• Section B - Operation

  15
• Section C - Accessories

  29
• Section D - Maintenance

  35
• Section E - Theory of Operation

  39
• Section F - Troubleshooting and Repair

  45
• Symptoms

  48
  • The feeder does not power up - no display (Digital Models) - no cold feed.

    48
  • The wire feeder powers up but there is no welder output when the gun trigger is pulled. The shielding gas flows and the drive rolls turn. (Across the arc models)

    48
  • Inconsistent wire feeding or wire not feeding but the drive rolls are turning.

    49
  • Wire feed speed consistently operates at the wrong value. The speed changes when the control knob is adjusted.

    49
  • This wire feeds but cannot be controlled with the wire speed pot.

    49
  • Variable or “hunting” arc.

    50
  • When the trigger is pulled, the wirefeeds slowly. (Digital display models)

    50
  • The preset voltage does not match the power source voltage. (Digital display models)

    50
  • Poor arc starts with sticking or “Blast-offs”, weld porosity, narrow or ropy looking beads.

    50
  • No shielding gas.

    51
• Section G - Electrical Diagrams

  79