Shaun....have had the same problem with 4 different units. The brushes corrode into place and allow arcing to the windings and the burn a turn. You have to gently tap back and forth to get it loose......take you time......it will come free. When you are loose take the sides and lightly sand the corrosion off so the brush so it slides freely in the slot. Might have to sand the slot also. A nail file comes in handy. No oil! Can use graphite powder for lube. Bud On Fri, Dec 4, 2020, 6:26 AM shaun <snoggle@xxxxxxxxxxxxxx> wrote: > > > I have a powerstat 1156b 45 amp variac. Does anyone know the mechanics of > changing the brush assembly.? I have removed the two screws but seems to be > froze in place. Not knowing how it's mounted I don't want to pry and break > it. I have included a couple of pictures. > > > > > https://drive.google.com/drive/folders/1afwuQQNYbbad2pJKcihc3bZHvYg67o3-?usp > =sharing > <https://drive.google.com/drive/folders/1afwuQQNYbbad2pJKcihc3bZHvYg67o3-?usp=sharing> > > > > > > > > Thanks Shaun Noggle > > _______________________________________________ > Tesla mailing list > Tesla@xxxxxxxxxxxxxxxxxx > https://www.pupman.com/mailman/listinfo/tesla > _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxxxxxxxxxx https://www.pupman.com/mailman/listinfo/tesla