Brother XL-2121 Operation Manual page 60

Symptom
You have not threaded the upper
thread properly or fitted the bobbin
properly.
You have not fitted the spool prop-
erly.
You have not used the right
The fabric is
combination of fabric, thread and
wrinkled.
needle.
The needle is bent or blunt.
If you are sewing thin fabric, the
stitch is too thick.
The thread tension is incorrect.
You have not threaded the upper
thread properly.
You have not used the right combi-
nation of fabric, thread and needle.
Stitches are
The needle is bent or blunt.
skipped.
You have not fitted the needle prop-
erly.
Dust has accumulated under the
needle plate or in the shuttle.
Dust has built up in the feed dogs or
in the shuttle.
You have not threaded the upper
thread properly.
There is a high-
pitched noise
The shuttle is scratched.
while sewing.
You have not used bobbin that has
been designed for this machine.
You have not moved the needle
The needle
holder to its highest position.
threader can not
be used.
You have not fitted the needle prop-
erly.
The presser foot that you are using is
not correct for the type of stitch.
The stitch is not
The thread tension is incorrect.
sewn correctly.
The thread is tangled, for example,
in the shuttle.
Possible cause How to put it right
Thread the upper thread and fit the
bobbin thread properly.
Fit the spool properly.
Choose a thread and needle that are
appropriate for the type of fabric.
Replace the needle.
Sew with stabiliser material under
the fabric.
Adjust the tension of the upper
thread.
Correct the upper threading.
Choose a thread and needle that are
appropriate for the type of fabric.
Replace the needle.
Fit the needle properly.
Remove the needle plate cover and
clean the plate and the shuttle.
Clean the shuttle.
Correct the upper threading.
Replace the shuttle.
Contact your retailer or the nearest
authorized service center.
Incorrect bobbins will not work
properly. Only use a bobbin that has
been designed for this machine.
Turn the balance wheel toward you
(counterclockwise) to raise the nee-
dle holder to the highest position.
Fit the needle properly.
Attach the presser foot that is correct
for the type of stitch that you want to
sew.
Adjust the tension of the upper
thread.
Remove the tangle thread. If the
thread is tangled in the shuttle, clean
the shuttle.
Reference
page 20, 23
page 23, 27
page 29
page 11, 12
–
page 28
page 23
page 29
page 11, 12
page 12
page 55
page 55
page 23
–
page 18
page 24
page 12
6
–
page 28
page 55
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