Lincoln Electric SVM 122-A Manuales de usuario

Tabla de contenidos

• Master TOC

  6
• Safety

  2
• Section A Installation

  7
• Section B Operation

  15
• Section C Accessories

  24
• Section D Maintenance

  37
• Section E Theory of Operation

  40
• Section F Troubleshooting & Repair

  45
• Symptoms

  48
  • Major physical or electrical damage is evident when the sheet metal cover(s) are removed.

    48
  • Machine is dead – no output – no fan – no pilot light.

    48
  • The machine is dead – no output – no fan – the pilot light is lit.

    49
  • The input contactor operates – the fan runs – the pilot light is lit – but the machine has no welding output.

    50
  • The machine has high welding output and no control.

    51
  • The machine has minimum welding output and no control.

    52
  • The machine does not have maximum output.

    53
  • The machine will not shut off when the power switch is put in the OFF position.

    54
  • The Arc Control switch (S5) has no effect in CV (FCAW/GMAW) mode when welding with the short circuit transfer process.

    54
  • The output terminals are always electrically “hot.”

    55
  • Poor arc striking when using semi-automatic or automatic wire feeders.

    56
  • Poor arc characteristics when welding in the constant voltage (CV) mode.

    57
  • The Arc Force control (R5) has no effect on the arc.

    58
  • The welding arc is variable and sluggish.

    58
• Section G Electrical Diagrams

  107