Bobbin Case Threading And Replacement - Singer 20U109 Instruction Manual And Parts List

3.11
Bobbin Case
Threading and
Replacement
Note
When straight
stitching, a
better result
can be obtained
if bobbin thread
is not threaded
through bobbin
case thread
guide '3' of
Figure 17.
Hold bobbin case so that bobbin
rotates in the direction of the arrow,
and put bobbin in the bobbin case.
(Figure 14)
Put thread into notch '1', and pull it
under tension spring '2' (Figure 15)
Pull thread out from slot '2' on end
of spring '1', and pass it through
bobbin case thread guide '3'.
Leave thread approximately
inches longer from in the bobbin
case. (Figure 16 and 17)
1
Figure 16
2
4
2
Zigzag Sewing Machine
Figure 14
1
Figure 15
3
Figure 17
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