To remove the bobbin gase, Remove throat plate as follows – SINGER 404K User Manual
Page 28
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Gleaning and Oiling—(Continued).
To Glean the Stitch-Forming Mechanism on Machines 327K,
328K, 329K and 404.
To Remove the Bobbin Gase
• Raise needle bar and presser bar.
• Open slide plate.
• Remove bobbin from bobbin
case.
Remove throat plate as follows
F
ig
. 57.
Place
thumb
under
right
front
end
of
throat
plate
and
raise
until clamping pin lifts up.
Draw toward right to disengage.
F
ig
. 58.
Unlock
bobbin
case
by
lifting
and
pulling
holder
to
right
as
shown in Fig. 58.
To Replace the Bobbin Gase.
POSITIONING
/
STUD
Replace bobbin case so that groove
under
tension
spring
fits
on
hook
raceway and fork of case straddles
positioning stud.
Push bobbin case holder to left un"
til it snaps down into lock position-
Remove
machine.
F
ig
. 59.
bobbin
case from
F
ig
.
61.
Position fork of throat plate under
clamping pin as shown in Fig. 61.
Push to left and press down until
plate snaps into position.
Close slide plate.
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