SINGER 331K4 - Manual (Page 6)

UPPER THREADING
MOVE NEEDLE BAR
TO HIGHEST POINT
Fig. 8. Upper Threading
NOTE: Thread unwinder 225258 is recommended for
use with these machines.
First, turn the machine pulley over toward you until
needle is at its highest point, then pass the needle
thread from the unwinder through the threading points
in the order shown in Fig. 8.
Pass the thread from left to right through needle eye.
Draw about two inches of thread through the eye of
the needle with which to start sewing.
TO REMOVE THE BOBBIN
Turn machine pulley over toward you until needle
thread take-up lever is at highest point, as shown in
Fig. 8.
Reach beneath bed of machine with left hand and
remove bobbin from shuttle body, as instructed in
Fig. 9.
While latch is kept open, bobbin will be retained
in bobbin case.
To remove bobbin from bobbin case, release latch
and turn the open end of bobbin case downward.
Bobbin will drop out, as shown in Fig. 10.
HOLD LATCH AND
\r PULL CASE FROM
A SHUTTLE
""/A.)
Fig. 9. Removing Bobbin Case and Bobbin from Machine
I —o. RELEASE
LATCH
4. BOBBIN
DROPS OUT
Fig. 10. Removing Bobbin from Bobbin Case