I'm thinking somewhere above there should be a generic manual. The generic manual should do for that machine. I know it won't be perfect but it is basic enough you should be able to figure out most of it. The bobbin area will be the same as your clone with a few variations. Here is a link for cleaning it out:
http://www.quiltingboard.com/vintage...y-t194930.html The tension will be rather generic as well. Tammi has info on her blog about tensions:
https://www.youtube.com/watch?v=guYT...zkw7ew&index=6