APPENDIX
66
Note
• If the needle is not raised, the upper thread
cannot be threaded correctly. Be sure to raise the
needle before threading the sewing machine.
■
Remedy
Thread the upper thread again correctly by
following the procedure below.
1
Turn off the machine.
2
If the thread is tangled, remove the tangled
thread.
• Refer to “Cleaning the race” (page 60) and
“Tangled thread on wrong side of fabric”
(page 62).
3
Remove the upper thread from the machine.
4
Turn the handwheel toward you
(counterclockwise) to check if the handwheel
moves smoothly.
• If the handwheel moves smoothly
Continue to step
8
.
• If the handwheel does not move smoothly
Continue to step
5
.
5
Remove the needle plate cover, and then
remove the bobbin and bobbin case.
6
Insert the bobbin case, attach the needle
plate cover, and then set the bobbin in the
bobbin case.
• Refer to “Cleaning the race” (page 60).
7
If the needle is bent, replace it with a new
one.
• Refer to “Replacing the needle” (page 21).
8
Turn on the machine, and then press the
needle position button to raise the needle.
Thread the machine correctly.
• Refer to “Upper threading” (page 16).
Symptom 2 :
The upper thread is tangled, for example, in
the race, or fabric is caught in the machine.
■
Cause
Thread is tangled below the needle plate.
■
Remedy
Remove the fabric and reset the thread and
bobbin by following the procedure below.
1
Turn off the machine.
2
Remove the fabric from the machine.
• Refer to “Fabric is caught in the machine and
cannot be removed” (page 63).
3
Remove the upper thread, bobbin and then
bobbin case.
If threads remain in the bobbin case, remove
it.
• Refer to “Fabric is caught in the machine and
cannot be removed” (page 63).
4
Insert the bobbin case, attach the needle
plate cover, and then set the bobbin in the
bobbin case.
• Refer to “Cleaning the race” (page 60).
5
If the needle is bent, replace it with a new
one.
• Refer to “Replacing the needle” (page 21).
6
Turn on the machine, and then press the
needle position button to raise the needle.
Thread the machine correctly.
• Refer to “Upper threading” (page 16).
Symptom 3 :
The needle breaks, or the needle bends and
thus hits the needle plate.
■
Cause
You have not used the right combination of fabric,
thread and needle.
■
Remedy
Choose a thread and needle that are appropriate
for the type of fabric.
• Refer to “Needle types and their uses” (page
20).
Symptom 4 :
The fabric is not fed.
■
Cause
The thread has become clogged as the stitch is
too fine.
■
Remedy
Lengthen the stitch length.
• Refer to “Adjusting the stitch length and width”
(page 26).
