the bobbin on my toyota SA45 RS2000 sewing machine will not turn?

Hello Maddie,
If the bobbin winder does not turn when you are trying to wind a bobbin it will either be, oil on the winder rubber, the winder rubber is worn down on one side so not making contact with the balance wheel, the winder has seized completely because of lack of oil, you can check this by turning the winder spindle by hand with the winder in the off position.
Ken

drivewithken@blueyonder.co.uk
July 2007