Benutzerhandbuch für Lincoln Electric SVM118-A

Inhaltsverzeichnis

• Master TOC

  6
• Safety

  2
• Section A Installation

  7
• Section B Operation

  15
• Section C Accessories

  36
• Section D Maintenance

  38
• Section E Theory of Operation

  42
• Section F Troubleshooting & Repair

  50
• Symptoms

  50
  • Major physical or electrical damage is evident when the sheet metal cover(s) are removed.

    53
  • Machine is dead – no output – no fans – no displays.

    53
  • The input contactor activates when “start” button is pushed but will NOT stay closed. Machine shuts off when “start” button is

    54
  • The machine shuts off and the control fuse (F1) repeatedly fails.

    54
  • Fans and display are functional. No output from machine in either Stick or TIG modes.

    55
  • The machine shuts off (pilot light goes out and the fans stop) when the Arc Start Switch or Amptrol is activated.

    56
  • The 115VAC receptacle does not work. The machine operates normally.

    56
  • Digital display does not light. Machine turns on and operates normally.

    57
  • The display lights but a current cannot be preset.

    57
  • In Stick mode the machine welds at a very low output, regardless of the peak current control setting.

    58
  • The machine welds at very high outputs, regardless of the Peak Current control setting.

    59
  • The Arc Force control has no effect on the arc.

    59
  • Gas and/or water do not flow, even though the gas and/or water LEDs are lit.

    60
  • No high frequency. Machine is in TIG Mode and has normal output.

    61
  • Weak high frequency – machine has normal welding output.

    62
  • Lack of penetration in AC TIG welding.

    62
  • Black areas along weld bead.

    63
  • Black areas along weld bead at or near end of weld.

    63
  • The machine has low output when in TIG 4-Step mode.

    63
  • Open circuit voltage is present at the output terminals even when the Arc Start switch or Amptrol is NOT actuated.

    64
  • Arc rectification when AC TIG welding.

    64
  • The machine output is intermittently lost. Gas flow and high frequency are also interrupted.

    65
  • The arc “flutters” when TIG welding.

    65
  • The Pulsar does not seem to operate.

    66
  • The Spot Timer does not last as long as the nameplate setting.

    66
  • The Spot Timer lasts much longer than the nameplate setting.

    66
  • When using Crater Fill the arc goes out before the final crater fill current level is reached.

    67
  • Stick electrode “blasts off” when touched to workpiece. The machine operates properly in the TIG mode.

    68
  • The arc seems too hot, and reducing the Peak Current control does not help. The machine operates properly in the TIG mode.

    68
• Section G Electrical Diagrams

  135