Справочник ПользователяСодержаниеMaster Table of Content8Safety2Section A - Installation9Section B - Operation15Section C - Accessories23Section D - Maintenance27Section E - Theory of Operation33Section F - Troubleshooting and Repair39Symptoms42Major physical or electrical damage is evident.42The machine is dead--no open circuit voltage and no wire feed when the gun trigger is activated. The cooling fan is not running.42There is no open circuit voltage or wire feed when the gun trigger is activated. The cooling fan is running.42There is no open circuit voltage or wire feed when the gun trigger is activated. The cooling fan is running. (continued from previous page)43When the gun trigger is activated and the wire feeds normally, but there is no open circuit voltage.43Output voltage and wire feed speed is present when the gun trigger is NOT activated.44The machines output is low. Welds are “cold”. The weld beads are rounded or “humped” demonstrating poor wetting into the plate. The machine cannot obtain full rated output of 200 amps at 22 VDC.44The output voltage is continuous when the gun trigger is NOT activated. The wire feed functions normally.44There is no gas flow when the gun trigger is activated . The wire feeds and the arc voltage is present.45The machine stops feeding wire while welding. When the gun trigger is released and pulled again, the wire feed starts.45Rough wire feeding or the wire will not feed but the drive rolls are turning.46No control of wire feed speed. Other machine functions are normal.46There is no wire feed when the gun trigger is activated. Normal open circuit weld voltage is present and the gas solenoid functions normally.46Poor arc striking with electrode sticking or blasting off.47The arc is unstable and or “hunting”47The weld bead is narrow or ropy. May have porosity with the electrode stubbing into the plate.48The contact tip seizes in the gas diffuser.48Section G - Electrical Diagrams91Размер: 5,1 МБСтраницы: 97Язык: EnglishПросмотреть