C. Threading the Pigtail Guide on an “M” Big Bobbin Case
1. Hold the thread close to the
bobbin and pull it behind the
pigtail guide, then around
toward the outside of the
pigtail guide in a spiral motion.
2. Pull the thread tail up,
which will wrap the
thread into the first loop
of the pigtail guide.
3. The thread should pass through
the pigtail guide as you see in the
photo above. When you turn the
bobbin case around so that you
can see the entire bobbin, verify
that the bobbin is spinning
clockwise before inserting the
bobbin case in the machine.
Tension Adjustment Screw
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