Sewing machine Service manual for All Necchi Supernova model This SERVICE MANUAL is designed to give you basic information, to understand any mechanical sequence you as a service man must understand and the function of the machine you are attempting to repair. It covers a lot of aspects on tune up and repairs of the mechanical sewing machines: Upper and Lower thread tension, presser bur adjustment, hook timing, needle position and clearance and many other issues. In English Great Diagrams, 121 PAGES. P.S This manual will also work with older Necchi MACHINES, such as the NORA, MIRA, BU, and others in that line, as the timing, needle bar, motor, feed dog, and other such adjustments will be the same. File size 14.54 MB ------ Your PDF file will be accessible for instant download from Etsy shortly after payment is received. All PDF Files are non-returnable and non-refundable. Thank you for understanding.