Brother XL-2121, Operation Manual

Page: 59 / 63

APPENDIX —————————————————————————————————————————————————————
58
The upper
thread breaks.
You have not threaded the upper
thread properly. (for example, you
have not fitted the spool properly, or
the thread has come out of the guide
above the needle.)
Correct the upper threading. page 23
There are knots or tangles in the
thread.
Remove any knots or tangles.
–
The needle is not appropriate for the
thread you are using.
Choose a needle that is appropriate
for the type of stitch.
page 29
The upper-thread tension is too tight. Loosen the upper-thread tension. page 28
The thread is tangled, for example,
in the shuttle.
Remove the tangle thread. If the
thread is tangled in the shuttle, clean
the shuttle.
page 55
The needle is bent or blunt. Replace the needle. page 11, 12
You have not fitted the needle prop-
erly.
Fit the needle properly. page 12
The area around the hole in the nee-
dle plate is scratched.
Replace the needle plate.
Contact your retailer or the nearest
authorised service center.
–
The area around the hole in the
presser foot is scratched.
Replace the presser foot.
Contact your retailer or the nearest
authorised service center.
–
The shuttle is scratched, or has a
burr on it.
Replace the shuttle.
Contact your retailer or the nearest
authorised 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 18
The lower
thread is tangled
or breaks.
You have not fitted the bobbin
thread properly.
Fit the bobbin properly. page 20, 21
The bobbin is scratched or does not
turn smoothly.
Replace the bobbin.
–
The thread is tangled.
Remove the tangled thread and
clean the shuttle.
page 55
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 18
The thread ten-
sion is incorrect.
You have not threaded the upper
thread properly.
Correct the upper threading. page 23
You have not fitted the bobbin
thread properly.
Fit the bobbin thread properly. page 20, 21
You have not threaded the right
combination of thread and needle
for the fabric you are using.
Choose a thread and needle that are
appropriate for the type of fabric.
page 29
You have not fitted the presser-foot
holder properly.
Fit the presser-foot holder properly.
–
The thread tension is incorrect.
Adjust the tension of the upper
thread.
page 28
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 18
Symptom Possible cause How to put it right Reference