I'm sure you will get enough info and help on this forum for a DIY fixup. If you can post a few photos that is always helpful. If you oil and clean the machine and try to turn the mechanism it should be fairl easy to see where the problem lies. Is it the treadle in particular that's the problem, or the machine itself? There's lots blogs and videos on youtube, and I'm sure there is someone who can work on your machine near you if you need it.
Last edited by Mickey2; 10-12-2015 at 07:16 AM.