Little Bettine the Bernina 707 has had a very thorough clean and service and is working absolutely beautifully.
The motor on must’ve failed in the past because she has a new aftermarket motor which is not a Bernina and because of this they’ve had to modify the power lead Connector and remove the minimum maximum speed switch. It works absolutely fine though and I don’t mind this at all because the quality of her stitches is phenomenal.
The final part before finishing her up was to test the bobbin, but I suspected it wasn’t going to work because of the state of the, existing rubber wheel. As expected, it was so hard that no contact with the hand wheel teeth was possible and the bobbin didn’t turn.
It took me ages to remove the residue from the old rubber tyre. 
Now that the bobbin spindle is clean, I have two flat O-rings which I’m going to join together to create a similar shape to what it was before.
Using superglue and a glue activator I almost managed to get them exactly on top of each other; this slight overhang on the two o-rings won’t affect its use at all because over time the gears on the hand wheel will wear this down anyway.
Now ready to install and take for a test drive.
Yippee. We’re up and running again.
I adore this little machine and if I don’t have another 707 in my collection, I’ll keep her until I find a more pristine version before I sell her to another lucky Bernina owner.
Another restored and revived Bernina which won’t be going anywhere near a junkyard!
Happy Sewing! 
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