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Brother NC21SE Operation Manual Page 253

Computerized sewing and embroidery machine.
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Problem
Cannot lower the
Presser foot was raised using the "Presser Foot
presser foot with the
Lifter" button.
presser foot lever
Thread tension is
Upper threading is incorrect.
incorrect
Bobbin is set incorrectly.
Using improper needle or thread for the
selected fabric.
Presser foot holder is not attached correctly.
Thread tension is set incorrectly.
Character pattern
Wrong presser foot was used.
does not turn out
Pattern adjustment settings were set incorrectly. Revise the pattern adjustment settings.
Did not use a stabilizer material on thin fabrics
or stretch fabrics.
Thread tension is set incorrectly.
Embroidery pattern
Thread is twisted.
does not sew out
correctly
Fabric was not inserted into the frame correctly
(fabric was loose, etc.).
Stabilizing material was not attached.
There was an object placed near the machine,
and the carriage or embroidery frame hit the
object during sewing.
Fabric outside the frame edges interferes with
the sewing arm, so the embroidery unit cannot
move.
Fabric is too heavy, so the embroidery unit
cannot move freely.
Fabric is hanging off the table.
Fabric is snagged or caught on something.
Embroidery frame was removed during sewing
(for example, to reset the bobbin). The presser
foot was bumped or moved while removing or
attaching the embroidery frame, or the
embroidery unit was moved.
Cause
Press the "Presser Foot Lifter" button to lower
the presser foot.
Check the steps for threading the machine
and rethread the machine.
Reset the bobbin. (If needle plate was
removed. reinstall needle plate and tighten
screws prior to installing bobbin case.)
Check the "Fabric/Thread/Needle
Combination" chart.
Reattach the presser foot holder correctly.
Adjust the thread tension.
Attach the correct presser foot.
Attach a stabilizer material.
Adjust the thread tension.
Use scissors, etc., to cut the twisted thread
and remove it from the race, etc.
If the fabric is not stretched tight in the frame,
the pattern may turn out poorly or there may
be shrinkage of the pattern. Set the fabric into
the frame correctly.
Always use stabilizing material, especially
with stretch fabrics, lightweight fabrics, fabrics
with a coarse weave, or fabrics that often
cause pattern shrinkage. See your authorized
dealer for the proper stabilizer.
If the frame bumps something during sewing,
the pattern will turn out poorly. Do not place
anything in the area where the frame may
bump it during sewing.
Reinsert the fabric in the embroidery frame so
that the excess fabric is away from the sewing
arm, and rotate the pattern 180 degrees.
Place a large thick book or similar object
under the arm head to lightly lift the heavy
side and keep it level.
If the fabric is hanging off the table during
embroidery, the embroidery unit will not move
freely. Place the fabric so that it does not hang
off the table or hold the fabric to keep it from
dragging.
Stop the machine and place the fabric so that
it does not get caught or snagged.
If the presser foot is bumped or the
embroidery unit is moved during sewing, the
pattern will not turn out. Be careful when
removing or reattaching the embroidery frame
during sewing.
TROUBLESHOOTING
Solution
"STITCH SETTING
Page
3
29
26
41
38
50, 174
CHART"
121
120
50, 174
159
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165
159
165
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241

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