I recently got an old hobart with a two cylinder wisconsin engine. I have not been able to find any info on the GW-222 welders. how hard is it to change the brushes? It also has 75 volt dc power outlet. It looks just like an AC outlet and so I was wondering if there is a way to convert the DC to AC so I can run grinders and stuff. Lastly, is there a way to convert this to electric start instead of the crank start? The crank start is probably the lowest priority, but if it's easy to do, then I will change it.