SINGER W3051 - Manual (Page 7)

3. *^0- *HiAe
Before threading the bobbin case, study Fig. 4, 5, and 6 to
aet a general idea as to how it is done.
1. Hold the bobbin case with your left hand and put the bobbin into
the bobbin case with your right hand, leaving about two inches
of the thread end unwound
(Fig. 4). As the bobbin is being
inserted in the bobbin case
the thread flow is clockwise.
F!g. 5
2. While holding the bobbin case
as before, grasp the thread end
with your right hand, and guide
it into the cross slot (Fig. 5).
3. Then pull it through under the tension spring of the
bobbin case (Fig. S) until it enters the delivery
eye (Fig. 6).
Fig. 4