I got excited over a box of cams at SA today and bought a Montgomery Ward J1561 machine - probably from the late 70s. It doesn't have a bobbin case, but the second one I tried from other machines fits. I plugged in the machine and it won't sew. It has a switch for 'electronic' or 'normal'. Can I take the bottom off and take this machine apart myself or am I in over my head? It's a heavy well made machine - made in Japan by Juki - so far that's all I know. [ATTACH=CONFIG]323662[/ATTACH]