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APPENDIX / ANEXO ————————————————————————————————————————————————
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74
Stitches are
skipped.
You have not threaded the upper
thread properly.
Correct the upper threading. page 32
You have not used the right combi-
nation of fabric, thread and needle.
Choose a thread and needle that are
appropriate for the type of fabric.
page 39
The needle is bent or blunt. Replace the needle. page 16
You have not inserted the needle
properly.
Insert the needle properly. page 16
Dust has accumulated under the
needle plate or in the bobbin case.
Remove the needle plate cover and
clean the plate and the bobbin case.
page 70
There is a high-
pitched noise
while sewing.
Dust has built up in the feed dogs or
in the bobbin case.
Clean the bobbin case. page 70
You have not threaded the upper
thread properly.
Correct the upper threading. page 32
The bobbin case is scratched.
Replace the bobbin case.
Contact your retailer or the nearest
authorized service center.
–
You have not used a bobbin that has
been designed for this machine.
Incorrect bobbins will not work
properly. Only use a bobbin that has
been designed for this machine.
page 26
The needle
threader can not
be used.
You have not moved the needle
holder to its highest position.
Turn the handwheel toward you
(counterclockwise) to raise the nee-
dle holder to the highest position.
page 34
You have not inserted the needle
properly.
Insert the needle properly. page 17
The stitch is not
sewn correctly.
The presser foot that you are using is
not correct for the type of stitch.
Attach the presser foot that is correct
for the type of stitch that you want to
sew.
–
The thread tension is incorrect.
Adjust the tension of the upper
thread.
page 38
The thread is tangled.
Remove the tangled thread. If the
thread is tangled in the bobbin case,
clean the bobbin case.
page 70
The fabric does
not feed.
The stitch is too fine. Lengthen the stitch length.
–
The darning plate is fitted on the
needle plate.
Remove the darning plate.
–
You have not used the right combi-
nation of fabric, thread and needle.
Choose a thread and needle that are
appropriate for the type of fabric.
page 39
The thread is tangled.
Remove the tangled thread. If the
thread is tangled in the bobbin case,
clean the bobbin case.
page 70
The sewing light
bulb does not
come on.
The sewing light bulb is damaged. Replace the sewing light bulb. page 69
Symptom Possible cause How to put it right Reference