SINGER 401A - Manual (Page 8)

NEEDLES AND THREAD
This machine uses a 15 x 1 needle.
Si2es 9, llj 14, 16 and 18.
For perfect stitching, select correct needle and
thread to correspond with fabric according to
table on
page 5. Be sure to use like threads for
both needle and bobbin.
NEEDLE INSERTION
Raise the needle bar to highest point by turn­
ing the hand wheel toward you. Loosen the needle
clamp screw. Insert needle upward into clamp
ias far as it will go, with the flat side of the needle
to the back and the
long groove toward you.
Tighten needle clamp screw.
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LONG GROOVE
TOWARD YOU