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TROUBLESHOOTING
Tangled Thread on Wrong Side of
Fabric
■ Symptom
*
The thread becomes tangled on the lower side of the
fabric.
*
After starting sewing, a rattling noise is made and
sewing cannot continue.
*
Looking under the fabric, there is tangled thread in
the bobbin case.
■ Cause
Incorrect upper threading
If the upper thread is incorrectly threaded, the upper
thread passed through the fabric cannot be firmly
pulled up and the upper thread becomes tangled in
the bobbin case, causing a rattling noise.
■ Remedy
Remove the tangled thread, and then correct the
upper threading.
a
Remove the tangled thread. If it cannot be
removed, cut the thread with scissors.
*
Refer to "Cleaning the Race" on page 178.
b
Remove the upper thread from the
machine.
c
Correct the upper threading by following
the instructions in "UPPER THREADING"
on page 47.
*
If the bobbin was removed from the bobbin case,
refer to "Setting the Bobbin" on page 44 to correctly
install the bobbin.
182
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