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Old 09-11-2013, 01:37 PM
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manicmike
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Join Date: Mar 2013
Location: Brisbane, Australia
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It's not supposed to have the rubber wheel. The treadle belt operates the bobbin winder directly (try it - very cool).
My manual, VS2 or 27 (they're pretty much the same) shows a picture.

Some more info here and here
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