Specifications

APPENDIX ——————————————————————————————————————————————————————————————————————————————————————————————————————————
——
92
The upper thread
breaks.
The upper thread was incorrectly
threaded (for example, the spool is
incorrectly installed or the thread has
come out of the needle bar thread
guide).
Correct the upper threading. page 18
There are knots or tangles in the
thread.
Remove any knots or tangles. –
The selected needle is not
appropriate for the thread being used.
Select a needle that is appropriate for
the type of stitch being used.
page 26
The upper thread tension is too tight. Loosen the upper thread tension. page 45
The thread is tangled, for example, in
the bobbin case.
Remove the tangled thread. If the
thread is tangled in the bobbin case,
clean the race.
page 89
The needle is bent or blunt. Replace the needle with a new one. page 27
The needle is incorrectly installed. Correctly install the needle. page 27
The area around the hole in the
needle plate is scratched.
Replace the needle plate.
Contact your retailer or the nearest
authorized service center.
–
The area around the hole in the
presser foot is scratched.
Replace the presser foot.
Contact your retailer or the nearest
authorized service center.
–
The bobbin case is scratched.
Replace the bobbin case.
Contact your retailer or the nearest
authorized service center.
–
A bobbin designed specifically for
this machine is not used.
Bobbins from older models, which
have a different thickness, will not
work properly. Only use a bobbin
designed specifically for this
machine.
page 13
The lower thread
is tangled or
breaks.
The bobbin thread is incorrectly
installed.
Correct the bobbin threading. page 16
The bobbin thread is incorrectly
wound.
Correctly wind the bobbin. page 13
There are scratches on the bobbin or
it doesn’t rotate properly.
Replace the bobbin. –
The thread is tangled.
Remove the tangled thread and clean
the race.
page 89
A bobbin designed specifically for
this machine is not used.
Bobbins from older models, which
have a different thickness, will not
work properly. Only use a bobbin
designed specifically for this
machine.
page 13
Symptom Probable Cause Remedy Reference