The guy I've been machining parts for has one , and the HF start is weak - he often has to touch the tungsten to the work to initiate the arc . I've looked thru his owners manual , and can find no reference to adjust an air gap , which has me wondering ...does this unit use an air gap to produce HF for start ? If so , where can we find info on checking/adjusting it ?
- posted
10 years ago