SINGER 216G - Manual (Page 23)

In case a full bobbin is not required the bobbin can
be raised by lifting lever 5, at any time desired.
Fig. 13
Winding of
the Bobbin
If through any cause the pressure of the rubber ring
against the ledge of the balance wheel is insufficient
to wind the bobbin,
.0 . " I loosen the screw
(0, Fig. 14). Press
the winder lightly
until the rubber
ring is in contact
with the ledge of
the balance wheel
and keep it in this
position until
screw (0) has been
tightened. The bobbin can also be wound while doing
ordinary sewing.
Fig. 14 Adjusting the Bobbin Winder
19