kountrykreation

I think the search feature is linked to model #, instead of serial number. If the machine is a model 66... here's the link
http://www.singerco.com/uploads/download/41_66.pdf

if not a model 66, here is the link to peruse thru all the other available model # manuals

http://www.singerco.com/accessories/...manuals/search

or, if you find out which model, here's a link on singer to input the specific model # and it will bring up the available manuals:

http://www.singerco.com/accessories/instruction-manuals

Hope this helps.