Benutzerhandbuch für Lincoln Electric SVM186-A

Inhaltsverzeichnis

• Master Table of Contents

  8
• Safety

  9
• Section A - Installation

  9
• Section B - Operations

  17
• Section C - Accessories

  27
• Section D - Maintenance

  31
• Section E - Theory of Operation

  33
• Section F - Troubleshooting and Repair

  41
• Symptoms

  44
  • Machine is dead. No output - No fan - No 115 VAC at receptacle.

    44
  • The fan runs normally. No output from the machine in either Stick or TIG modes.

    44
  • Fan runs - No output from machine in either Stick or TIG modes and the yellow light on the control panel is on.

    45
  • The machine does not respond (no gas flow, no high frequency and no open circuit voltage) when the arc start switch or Amptrol is activated - fan is working normally.

    45
  • Machine regularly over heats -thermostat opens. Yellow light on front panel glows. The fan runs but the machine has no output.

    46
  • The machine does not have output in the Stick mode. The machine operates correctly in the TIG mode.

    46
  • Machine welds at a very low output regardless of the current control setting.

    47
  • The machine welds at a very high output regardless of the current control setting.

    47
  • Machine output is intermittently lost. Gas flow and high frequency are also interrupted.

    48
  • The arc "flutters" when TIG welding.

    49
  • The arc "pulsates" when AC TIG welding.

    49
  • Black areas along weld bead.

    50
  • Weak high frequency - machine has normal welding.

    50
  • High frequency "spark" is present at tungsten electrode, but operator is unable to establish a welding arc. Machine has normal open circuit voltage. Refer to Technical Specifications in the Installation Chapter.

    51
  • No high frequency. Machine is in the TIG mode and has normal output.

    52
  • No gas flow when Amptrol is activated in the TIG mode. Machine has normal output - fan runs. A "click" can be heard indicating that the gas solenoid valve is operating.

    52
  • When AC TIG welding, the arc is erratic and there is a loss of "cleaning" of the work piece.

    53
  • The end of the tungsten electrode melts away.

    53
  • Stick electrode "Blasts Off" when arc is struck.

    54
  • The stick electrode "sticks" in the puddle.

    54
  • Variable or sluggish welding arc when welding in the Stick mode.

    54
• Section G - Electrical Diagrams

  97