SINGER 6423 - Manual (Page 10)

USING NEEDLE THREADER INSERTING WOUND BOBBIN
Snap threader up onto bar.
• Slide threader as far to left as it
will go.
• Be sure guide (1) is against left
side of needle.
• Bring metal hook of threader
forward, through eye of needle.
• Hook thread into metal hook.
Draw metal hook and thread
backwards.
Slide threader to right to remove.
Open slide plate.
• Insert bobbin into bobbin case.
Guide thread into notch (1)
and then into notch (2).
• Pull thread under and back of
presser foot.
• Close slide plate.
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