That looks like a very nice sewing machine and you have some real nice finds!!! Congrats.
here is a free manual
http://www.singerco.com/uploads/download/41_66.pdf you really probably need a 66-16 however this one will get you by.
Muv has some nice videos about cleaning and using the vintage machines - very intriguing
http://www.quiltingboard.com/vintage...v-t167789.html