Brother 85-X36 Manual De Instrucciones página 49

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Symptom
▲
The upper
thread
breaks.
The lower
thread is
tangled or
breaks.
The thread
tension is
incorrect.
The fabric is
wrinkled.
▼
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Possible cause
The needle is bent or blunt.
The needle is incorrectly installed.
The area around the hole in the needle
plate or the 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 thread is tangled.
You have not used a bobbin that has been
designed for this machine.
Bobbin is set incorrectly.
You have not threaded the upper thread
properly.
You have not wound the bobbin thread
properly.
You have not threaded the right
combination of thread and needle for the
fabric you are using.
You have not attached the presser 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.
You have not threaded the upper thread
properly or fitted the bobbin properly.
You have not fitted the spool properly.
You have not used the right
combination of fabric, thread and
needle.
The needle is bent or blunt.
If thin fabrics are being sewn, the fabric is
not being fed correctly.
If thin fabrics are being sewn, the stitch is
too coarse.
The presser foot you are using is not
appropriate for the type of stitch that you
want to sew.
How to put it right
Replace the needle.
Correctly install the needle.
Replace the needle plate.
Contact your retailer or the nearest
authorized service center.
Replace the bobbin case.
Contact your retailer or the nearest
authorized service center.
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 race.
Use a bobbin that has been designed for
this machine.
Reset the bobbin thread correctly.
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 properly.
Adjust the tension of the upper thread.
Use a bobbin that has been designed
for this machine.
Reset the bobbin thread correctly.
Thread the upper thread and wind 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 stabilizer material under the
fabric.
Shorten the stitch length.
Attach the presser foot that is correct
for the type of stitch that you want to
sew.
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