I had to order the manual for my Necchi....think it cost $15...because I was going to take a machine quilting class, that required I have the manual. Found it by googling the model number, and it came from across the country. The sad thing is that the machine died shortly thereafter, due to being "used up". I think I deleted the website from my favorites because I no longer have the machine.
Here is a link to sewusa. that shows a manual for $10
www.sewusa.com/Sewing_Machine_Manuals/Necchi_Manuals/522