SINGER W510 - Manual (Page 12)

LOWER THREADING
• Threading Bobbin Case
Turn flap release knob back to
release the front fiat sewing
surface flap. (Fig. 23) Raise the
front flap upward fully. Make
sure that the take-up lever is in
its highest position. Remove the
bobbin case, by opening the
bobbin case latch and pulling the
bobbin case out. (Fig. 24) Hold
the bobbin case between the
thumb and forefinger of the left
hand, so that the slot in the edge
of the bobbin case is on top.
Take the bobbin between the
thumb and forefinger of the right
hand so that the thread on top
leads from left to right. Insert
the bobbin into the bobbin case.
Draw the thread into the slot of
the bobbin case and then under
the tension spring into the fork
shaped opening of the spring.
(Fig. 25) Then lead the thread
through the spiral thread guide
on top of bobbin case.
• Placing Bobbin Case in
Shuttle
Hold the threaded bobbin case
in your left hand. Raise the
bobbin case latch with your
finger and hold open. Insert and
center the bobbin case on the
stud of the rotary hook. Be sure
the square opening of the bobbin
case is on top. Press the bobbin
case into the rotary hook as far
as possible until the latch catches
on the center post of the rotary
hook. Then release the bobbin
case latch. Press the bobbin case
to be sure the bobbin case is
locked securely in place. (Fig.
26)
26
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