SINGER 251 - Manual (Page 13)

1 3
TO THREAD THE BOBBIN CASE
Hold the bobbin so that the thread will
unwind in the direction shown in Fig. 16.
Hold the bobbin case as shown In Fig. 16
and place the bobbin into it.
SLOT
NEAR
TOP
I /
/ \
Draw the thread into the delivery eye at the
end of the tension spring, as shown in Fig. 18.
Fig. 16. Placing Bobbin
in Bobbin Case
Pull the thread into the slot 1 and under
the tension spring 2, Fig. 17.
3. DRAW
THREAD
Fig. 18. Drawing the Thread
Under the Tension Spring