It looks like you can order one for about 10 dollars
http://www.sewusa.com/Sewing_Machine...ion_Manual.htm
plus shipping, or if you want a manual right now you can download from this website for 13 dollars.
http://pages.sewing-machine-manuals....923591590.html
You might be able to get it free from a Bernina dealer. I have never had a Bernina, so I don't know.