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APPENDIX
66
Note
•If the needle is not raised, the upper thread
cannot be threaded correctly. Be sure to press the
needle position button to raise the needle before
threading the upper thread.
■
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).
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