Open the shuttle cover behind the flat bed
attachment at the front of the machine.
a Flat bed attachment
b Shuttle cover
Remove the bobbin case by pulling its latch
toward you and pulling it out from the shuttle
a Bobbin case latch
Unwind about 10 cm (4 inches) of thread
from a full bobbin, and then insert the bobbin
into the bobbin case.
• Only use bobbins that were designed to be
used with this machine.
● Make sure you set the bobbin so the thread
unrolls in the right direction. If the thread unrolls
in the wrong direction, it may cause the thread
tension to be incorrect or break the needle.
Pull the trailing thread through the slot, down
and to the left, as shown below, until it enters
the delivery eye under the tension spring.
a Tension spring
Hold the bobbin case by the latch, fully insert
the bobbin case into the shuttle race, and then
release the latch.
• Make sure the bobbin case finger fits into the
notch at the top of the shuttle race.
a Bobbin case finger
Close the shuttle cover.
● Make sure that the bobbin case is properly placed
back into the machine. If it is incorrectly
installed, it will fall out from the shuttle when the
machine starts to sew.