Hello. Story is, I bought myself this welder several years ago in apparently GWO. I have finally got round to be able to try and recomission it now. Maybe I was working ****-backwards, but anyway - Ive changed the liner, tip and shroud, and fit a new reel of wire (0.7kg reel, 0.8 wire). Turning the machine on, it seems to power up fine, fan comes on fine. Then the first issue is the feed seems to be really noisy, grating sort of sound. And seems very weak, even on full speed. Then second problem, good earth on a piece of scrap, but no arc at all. I'm not really sure what or where I could look at next? Any ideas appreciated, cheers.