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TT700
23
Drawing C
• Wrong position of bobbin case. As indicat-
ed, the scoop section will be stuck under-
neath point C. This is wrong.
Drawing D
• Correct relationship of bobbin case, position
plate and bobbin case housing.
• Most important is that the rim of bobbin
case supported by the rim of bobbin case
housing. The bobbin case is floating on top
of the bobbin case housing and the bobbin
case housing turns easily under the bobbin
case.