raedar63,
you do it a little at a time. Untangle the thread wrapped around and under the bobbin case... brush out lint and stray threads. Clean up the dirt outside the machine so when you turn it every what way to oil it up you don't get dirt all over yourself. Once you get the bobbin area cleaned and working with either a cleaned up bobbin case or a new one then work on the tension. Just go around the machine until you've cleaned it all and oil it. Some times I have a machine setting around for a while until I'm comfortable after doing a bit of research... then I dig into it. I have a 319 I've been researching - I'm feeling like I can handle it but I haven't got much time and daylight. Do you know there are some similarities between the 301 and the 319? Not at all identical but I can see the engineering... get some rust cleaner at the automotive store or where ever and soak that bobbin case. Maybe you can polish out any pits. You can buy new bobbin cases if all else fails.
Last edited by miriam; 11-29-2011 at 03:48 PM.