Hey, i have a lincoln 135 welder i got 2 years ago, been using it a bunch, worked great. I let my friend borrow it, he was welding some c-notch stuff into his frame for airbags.. yes i know not the best choice of welder, he is gonna go over it w/ another one. Anyways, he was just about done w/ it but now every time he pulls the trigger the wire gets burned up and snaps right near the rollers inside the actual welder itself. Any clue what could cause this? how to fix it?