Patsy, be very VERY careful on those decals. They might not be removed by the wrong cleaner, but they could end up discolored. How lucky for you to have the manual with the machine! I have one of the 66 series Singers and used it constantly until I got a new sewing machine last year. They really are well-built. Try checking on-line for "Cleaning an old sewing machine" and you'll find a few hints.