SINGER 15-30 Treadle Sewing Machine - Manual (Page 8)

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Sewing Machine No. 15
8
FIG. 6. WINDING THE BOBBIN
The end of the thread must be held by the hand until a few coils are wound and should then
be broken off. When sufficient thread has been wound upon the bobbin, the bobbin winder is
automatically released from the balance wheel.
If the pressure of the rubber ring (5, Fig. 6) against the hub of the balance wheel is
insufficient for winding the bobbin, loosen the adjusting screw (6, Fig. 6) and press the bobbin
winder lightly until the rubber ring is in contact with the hub of the balance wheel; then tighten
the screw.