Thank you very much for your reply. It pulls through okay with the pliers so its not stuck. The problem is that it's a wolf weld which went bust recently so I don't think you can get spares for it.
I know this is an old problem but I'm at my wits end!! I have a wolf weld 140 and am using it with gas. I was getting along just fine and then all of a sudden it stopped feeding the wire. The motors working and the feed wheels are going round but the wire doesn't move. I've adjusted wire and...