I have a good resource book on treadle repair and maintenance: "The Complete Guide to Treadle Sewing Machines" by Reuben O. Doyle. It's a soft-cover spiral bound book published in 2002. I think I got it from Clotilde but I just checked her site and Amazon - neither of them have it. If you can find it, it's really good for cleaning, adjustments, trouble-shooting, etc.