SINGER 221-1 Featherweight User Manual
Page 6
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10
TO THREAD BOBBIN CASE
Hold bobbin case
and bobbin so
that thread leads
off in direction
shown above.
2. Place bobbin into
bobbin case. Pull
thread into slot 1.
Pull thread under
tension spring 2
and into slot 3 at
end of spring, as
shown.
11
TO REPLACE BOBBIN CASE
Hold bobbin case by latch and place it
on stud, having thread draw from top of
bobbin case.
Release latch and press bobbin case
back until latch enters groove in stud.
Allow about three inches of thread to
hang free from bobbin case and turn down
bed extension.
CAUTION: If throat plate is removed
for cleaning stitch forming mechanism,
etc., make certain, when replacing throat
plate, that position finger of bobbin case
base enters notch of position plate at
tached to underside of throat plate, as
shown above.