用户手册 — Lincoln Electric SVM 117-A

目录

• Master TOC

  7
• Safety

  2
• Section A Installation

  9
• Section B Operation

  19
• Section C Accessories

  29
• Section D Maintenance

  37
• Section E Theory of Operation

  45
• Section F Troubleshooting & Repair

  53
• Symptoms

  56
  • Major Physical or Electrical Damage is Evident

    56
  • Machine is dead- No Open Circuit Voltage output and No Wire Feed when gun trigger is pulled.

    56
  • No Open Circuit Voltage output but wire feeds normally when gun trigger is pulled.

    57
  • Wire feeds but welding output is low causing wire to "stub". Welds are "cold". Machine cannot obtain full...

    57
  • The output voltage and wire feed is present continuously or pulsing when gun trigger is NOT activated.

    58
  • No control of arc voltage. Wire feeding is normal.

    59
  • There is no gas flow when gun trigger is pulled. Wire feeds and weld voltage is present.

    59
  • The machine stops feeding wire while welding.

    59
  • No control of wire feed speed. Other machine functions are normal.

    60
  • There is no wire feed when gun trigger is pulled. Normal open circuit voltage is present.

    60
  • The arc is unstable and or "hunting".

    61
  • Weld bead is narrow or ropy. May have porosity with electrode stubbing into plate.

    61
  • The contact tip seizes in the gas diffuser.

    61
  • The welding arc is variable and sluggish.

    62
  • The arc striking is poor.

    62
• Section G Electrical Diagrams

  95