Brother CE7070PRW Operation Manual page 97

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Symptom
The fabric is
wrinkled.
Stitches are
skipped.
There is a high-
pitched noise
while sewing.
The fabric does
not feed.
The fabric feeds
in the opposite
direction.
Possible cause
The presser foot you are using is not
appropriate for the type of stitch that
you want to sew.
The thread tension is incorrect.
You have not threaded the upper
thread properly.
You have not used the right
combination of fabric, thread and
needle.
The needle is bent or blunt.
The needle is incorrectly installed.
Dust has accumulated under the
needle plate or in the race.
Dust has built up in the feed dogs or
in the race.
You have not threaded the upper
thread properly.
The bobbin case is scratched.
You have not used bobbin that has
been designed for this machine.
The feed dogs are lowered.
The stitch is too fine.
You have not used the right
combination of fabric, thread and
needle.
The thread is tangled, for example,
in the race.
The presser foot you are using is not
appropriate for the type of stitch that
you want to sew.
The needle is bent or blunt.
Zigzag foot "J" is slanted on a thick
seam at the beginning of stitching.
The feed mechanism is damaged.
How to put it right
Attach the presser foot that is correct
for the type of stitch that you want to
sew.
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.
Correctly install the needle.
Remove the needle plate cover and
clean the plate and the race.
Remove the needle plate cover and
clean the plate and the race.
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.
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 race, clean
the race.
Attach the presser foot that is correct
for the type of stitch that you want to
sew.
Replace the needle.
Use the presser foot locking pin
(black button on the left side) on
zigzag foot "J" to keep the presser
foot level while sewing.
Contact your retailer or the nearest
authorized service center.
Reference
page 73
page 41, 87
page 23
page 29
page 30
page 80
page 80
page 23
4
–
page 15
. page 55, 65
page 38
page 29
page 80, 84
page 73
page 30
page 43
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