http://www.quiltingboard.com/t-155695-1.htm
link to a video I just posted.
A lot of machines do not need a total spa treatment. Of all the machines I have rehabbed probably only a couple needed an all out treatment - the rest were given a treatment about like Muv demonstrates on the video. You do not need to have the exact machine in the video to be able to do it. Get an owner's manual before you start.