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(42) Adjustment of the bobbin winder driving wheel position
The distance is 139.5 mm between the measuring plane
B
of the bobbin winder driving wheel
and the
cover mounting plane
A
of the sewing machine frame
.
(43) Adjusting the bobbin winder amount
The position of the bobbin winder lover
is based on the standard that it is 14 mm apart from the bobbin
winder shaft
. Try to perform bobbin winding actually and make fine adjustments of the bobbin lever set
screw
in the directions of the arrows
A
and
B
so that the amount of thread winding becomes adequate
(recommended value: 80 to 90% of the bobbin.)
Standard Adjustment
Standard Adjustment
B
A
14mm
B
A
139.5mm
