Originally Posted by
Steinmann
Hello everyone and thank you for accepting me on your forum. I have this Bernina machine, a model Jubilee from 1953 that my grandmother gave me. The machine stood still for ca. 40 years, but all is still intact and all parts are moving, except the lower knob that I marked red (picture from Google). I bought new rims and oiled the inside well but this knob and its mechanism are not cooperating. I’m afraid to use force on the internals. Is this a known phenomenon for machines that have been standing for a while? I would appreciate any ideas and advice on how to proceed. Thanks in advance and a lovely evening - Shachar.
P.S.
If there are other aspects that I should examine in such an old machine, before starting it, I would of course like to hear it. For example, I checked the electrical side, but only at the level of the cable that connects to the electrical outlet: it has no cracks and it looks fine on the surface. But are there other things I should check? Thanks again.
Yes, I've certainly seen this on Bernina machines. Remove the bed plate. On the ones I've worked on there is a button or a lever next to the bobbin that will allow the bed to pop off. Flip open the bobbin cover door and take a look, there may be two levers, one to pop off the throat plate and the other to pop off the bed plate.
When you pop off the bed plate you can then gain access to the mechanism behind the dial. Drip in some penetrating oil and let it sit. Work the dial very gently, but do not force it. It might also help to heat the area very very gently with a hair dryer. You don't want to use anything with high heat in order to not damage the paint. While you have the plate off, oil all of the mechanisms including a few drops of oil on the bushings.