Brother EX-660 Operation Manual page 63
Computerized sewing machine
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Also See for EX-660:
- Operation manual (68 pages) ,
- Manual (42 pages) ,
- Service manual (2 pages)
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NCBC2000.book Page 61 Thursday, October 21, 2004 4:32 PM
Symptom
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 inserted the needle
properly.
Dust has accumulated under the
needle plate or in the bobbin case.
Dust has built up in the feed dogs or
in the bobbin case.
You have not threaded the upper
thread properly.
There is a high-
pitched noise
The bobbin case 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 inserted the needle
properly.
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 bobbin case.
The feed dogs are lowered.
The stitch is too fine.
The fabric does
You have not used the right combi-
not feed.
nation of fabric, thread and needle.
The thread is tangled, for example,
in the bobbin case.
The sewing light
bulb does not
The sewing lamp is damaged.
come on.
Possible cause
Correct the upper threading.
Choose a thread and needle that are
appropriate for the type of fabric.
Replace the needle.
Insert the needle properly.
Remove the needle plate cover and
clean the plate and the bobbin case.
Clean the bobbin case.
Correct the upper threading.
Replace the bobbin case.
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.
Raise the needle either by turning the
handwheel toward you
(counterclockwise) so that the mark
on the wheel points up or by pressing
twice.
Insert 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 bobbin case,
clean the bobbin case.
Slide the feed dog position lever to
Lengthen the stitch length.
Choose a thread and needle that are
appropriate for the type of fabric.
Remove the tangle thread. If the
thread is tangled in the bobbin case,
clean the bobbin case.
Contact your retailer or the nearest
authorized service center.
How to put it right
(needle position button) once or
.
Reference
page 16
page 20
page 21
page 57
page 57
page 16
–
page 11
4
page 16
page 21
page 52
page 29
page 57
page 38, 45
page 27
page 20
page 57
–
61
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