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APPENDIX ——————————————————————————————————————————————————————————————————————————————————————————————————————————
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c
While holding the bobbin in place with your
finger, pass the thread through the slit in the
needle plate.
• Hold down the bobbin with your right hand,
and then pull the end of the thread around
the tab with your left hand.
a Tab
b Hold down the bobbin with your right hand.
On models equipped with the quick-set bobbin,
pull the thread to pass it through the slit in the
needle plate, then cut it with the cutter.
c Slit
d Cutter
Sewing with the correct thread tension is possible
after the bobbin has been correctly installed in the
bobbin case.
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/check details
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.
• For details, refer to “Cleaning the bobbin
case” on page 78.
b
Remove the upper thread from the machine.
c
Refer to the following steps to correct the
upper threading.
• If the bobbin was removed from the bobbin
case, refer to “Lower threading” (page 19)
and “Remedy/check details” in the section
“Upper thread tightened up” (page 81) to
correctly install the bobbin.