![Forney 220 MP Скачать руководство пользователя страница 26](http://html1.mh-extra.com/html/forney/220-mp/220-mp_operating-manual_2320350026.webp)
26
WWW.FORNEYIND.COM
PROBLEM
POSSIBLE CAUSE
POSSIBLE SOLUTION
Wire burns back to contact tip.
Wire feed speed is set too low for voltage
setting being used.
Increase wire feed speed (turn RIGHT KNOB
clockwise).
Stick-out too short.
Increase stick-out (the amount the wire extends
past the contact tip).
Wrong size contact tip.
Use correct size contact tip.
Contact tip is clogged or damaged.
Replace contact tip.
Difficult arc start.
Amperage is too low.
Increase amperage setting.
Make sure base metal is clean.
Properly clean base metal.
Make sure electrode is not damaged.
Replace electrode if needed.
Arc is wandering (TIG).
Tungsten is too large.
Use a smaller tungsten.
Gas flow is too high.
Reduce gas flow.