Brother LS2300PRW User Manual page 44

APPENDIX —————————————————————————————————————————————————————
Symptom
The needle is bent or blunt.
You have not inserted the needle
properly.
The area around the hole in the nee-
dle plate is scratched.
The upper
The area around the hole in the
thread breaks.
presser foot is scratched.
The bobbin case is scratched, or has
a burr on it.
You have not used a bobbin that has
been designed for this machine.
You have not wound the bobbin
thread properly.
The bobbin is scratched or does not
turn smoothly.
The lower
The thread is tangled.
thread is tangled
or breaks.
You have not used a bobbin that has
been designed for this machine.
Bobbin is set incorrectly.
The thread is
tangled on the The upper thread was not threaded
wrong side of correctly.
the fabric.
You have not threaded the upper
thread properly.
You have not wound the bobbin
thread properly.
You have not used the right
combination of fabric, thread and
needle.
The thread ten-
You have not attached the presser-
sion is incorrect.
foot holder properly.
The thread tension is incorrect.
You have not used a bobbin that has
been designed for this machine.
Bobbin is set incorrectly.
The upper
The bobbin thread is incorrectly
thread is too
installed.
tight.
43
Possible cause How to put it right
Replace the needle.
Insert the needle properly.
Replace the needle plate.
Contact your retailer or the nearest
authorised service center.
Replace the presser foot.
Contact your retailer or the nearest
authorised service center.
Replace the bobbin case.
Contact your retailer or the nearest
authorised service center.
Incorrect bobbins will not work
properly. Only use a bobbin that has
been designed for this machine.
Wind the bobbin thread properly.
Replace the bobbin.
Remove the tangled thread and
clean the shuttle race.
Incorrect bobbins will not work
properly. Only use a bobbin that has
been designed for this machine.
Reset the bobbin thread correctly.
Correct the upper threading.
Correct the upper threading.
Wind the bobbin thread properly.
Choose a thread and needle that are
appropriate for the type of fabric.
Attach the presser-foot holder prop-
erly.
Adjust the tension of the upper
thread.
Incorrect bobbins will not work
properly. Only use a bobbin that has
been designed for this machine.
Reset the bobbin thread correctly.
Correctly install the bobbin thread.
Reference
page 16
page 16
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