Справочник ПользователяСодержаниеMaster Table of Contents6Safety2Section A - Installation7Section B - Operation13Section C - Accessories27Section D - Maintenance31Section E - Theory of Operation34Section F - Troubleshooting and Repair45Symptoms48Major physical or electrical damage is evident.48Machine is dead - no welding output and no wire feed when gun trigger is pulled.48No welding output but wire feeds normally when gun trigger is pulled.49Wire feeds but welding output is low causing wire to “stub”. Welds are “cold”. Machine cannot obtain full rated output of 300 amps at 32 volts.50The output voltage and wire feed is present continuously or pulsing when gun trigger is NOT activated.50The output voltage is present continuously when gun trigger is NOT activated. The wire is not feeding.50No control of arc voltage. Wire feeding is normal.51There is no gas flow when gun trigger is pulled. Wire feeds and weld voltage is present.51No control of wire feed speed. Other machine functions are normal.52There is no wire feed when gun trigger is pulled. Normal open circuit voltage is present.52The machine stops feeding wire while welding.52The arc is unstable and or “hunting.”53Weld bead is narrow or ropy. May have porosity with electrode stubbing into plate.53The contact tip seizes in the gas diffuser.54The welding arc is variable and sluggish.54The arc striking is poor.54Section G - Electrical Diagrams102Размер: 4,1 МБСтраницы: 126Язык: EnglishПросмотреть