Brother 888-N42 Руководство по эксплуатации - Страница 29
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Symptom, Cause/solution
The needle is not appropriate for the thread
you are using�
The upper thread tension is too tight�
The thread is tangled, for example, in the
bobbin case�
The needle is turned, bent or the point is dull�
The needle is not installed properly�
The area around the opening in the needle
plate is scratched�
This is not a scratch�
The area around the opening in the presser
foot is scratched�
The bobbin case is scratched, or has a burr on it� *
A bobbin designed for this machine is not
used�
The bobbin thread is tangled or breaks�
The bobbin thread is wound improperly�
The bobbin is scratched or does not turn
smoothly�
The thread is tangled�
A bobbin designed for this machine is not
used�
The bobbin is installed incorrectly�
The thread tension is incorrect�
Upper threading is incorrect�
The bobbin thread is wound improperly�
The needle or thread is improper for the fabric� 12
The presser foot is not attached properly�
The presser foot holder is not attached
properly�
The thread tension is incorrect�
A bobbin designed for this machine is not
used�
The bobbin is installed incorrectly�
The fabric is wrinkled�
Upper threading or the bobbin installation is
incorrect�
The spool is not fitted properly�
The needle or thread is improper for the fabric� 12
The needle is turned, bent or the point is dull�
If you are sewing thin fabric, the stitch is too
thick�
X
Sew with stabilizer material under the
fabric�
The thread tension is incorrect�
Stitches are skipped�
Upper threading is incorrect�
The needle or thread is improper for the fabric� 12
★
: Only for some models�
Reference
Symptom, Cause/solution
The needle is turned, bent or the point is dull�
12
The needle is not installed properly�
17
Dust has accumulated under the needle plate
or in the bobbin case�
27
The thread is tangled on the wrong side of the fabric�
13
Upper threading is incorrect�
13
The needle or thread is improper for the fabric� 12
There is a high-pitched noise while sewing�
Dust has built up in the feed dogs or in the
*
bobbin case�
Upper threading is incorrect�
The bobbin case is scratched�
A bobbin designed for this machine is not
*
used�
The needle threader cannot be used�
The needle is not in the highest position�
7
The needle is installed incorrectly�
The needle is turned, bent or the point is dull�
7
Upper threading is incorrect�
7
The needle threader hook is bent and does not
pass through the eye of the needle�
25
The needle threader lever cannot be moved or
returned to its original position�
7
A size 65/9 needle is being used�
9
X
The needle is incompatible with the needle
threader� Manually pass the thread through
the eye of the needle�
9
The stitch is not sewn correctly�
7
The presser foot is not appropriate for the
selected stitch�
15
The thread tension is incorrect�
The thread is tangled, for example, in the
15
bobbin case�
17
The fabric does not feed�
The feed dogs are lowered�
7
X
Slide the feed dog position switch to
9
The stitch is too fine�
The needle or thread is improper for the fabric� 12
7, 9
The thread is tangled, for example, in the
bobbin case�
7
While winding the bobbin, the bobbin thread was
wound below the bobbin winder seat�
13
The thread was incorrectly passed under the
pretension disk on the thread guide�
X
Remove any entangled thread, and then
wind the bobbin�
-
The bobbin thread cannot be pulled up�
17
The needle is turned, bent or the point is dull�
The bobbin is installed incorrectly�
9
Reference
13
13
24
9
24
9
*
7
★
10
13
13
9
*
*
10
14
17
27
★
21
�
15
27
★
8, 28
13
9
29