Bobbin on Bernina 807 won't wind? - Bernina Sewing Machines

You can also consider purchasing a standalone bobbin winder (Sidewinder) for ~$30 at fabric stores or online. After nearly 50 years of sewing, I just recently bought one and am thrilled to be able to wind bobbins without unthreading my machine. Also, it should save wear and tear on your machine, or in your case, work when you need it.

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Please follow the logic checks and possible corrections:

1. Check the winder shaft for a sticking or a stuck condition. If stuck or sticking, add a drop or two of mineral spirits to the winder shaft and the winder support bushing. This will generally release the winder shaft.
If the winder shaft becomes free wheeling, clean off excess solvent and apply a drop of Bernina machine oil which is typically a class 68 machine oil. You can also use a common white mineral sewing machine oil.
Do not use WD-40 or 3 in 1 oil!
If WD-40 had been used prior to the winder seizure then you'll know why....Removing sticky WD-40 residues requires further measures.

2. If only the rubber wheel has hardened, you will need to replace the winder hub with a new hub and replaceable winder ring or the entire winder can be replaced. There are some very good after-market parts available online.

3. If the winder parts are good and you are describing a condition where the hand-wheel will not release so that the machine drives while trying to wind a bobbin, this would requite another question and detailed answer... SewTechnical Home