Ok so I bought this a couple months from someone, he had just replaced the brushes he said. The problem I'm having is that the saw seems to be pretty weak and sometimes it'll smoke out of the rear motor cover. I also noticed that the covers for the brushes seem to be loose and today after using it a bit they just don't want to stay in at all. I'm not sure if it's the covers thread is messed up or if it's the sockets they go into. Any help would be appreciated on how you think I could remedy this problem? Or maybe some other things I should check?