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182
The upper thread breaks.
A bobbin designed specifically for this machine is
not used.
33
The automatic needle-threading mechanism is
broken.
*
Adhesive is attached to the needle.
• Replace the needle.
176
The fabric is not taut. 61, 62
The thread quality is poor.
• The thread quality is too weak due to age of
thread. Replace thread.
—
The embroidery data contains stitches with a
pitch of zero.
124
The embroidery data contains many stitches with
an extremely small pitch.
124
The thread density of the embroidery data is too
fine.
Three or more overlapping stitches are being
embroidered.
• Using a data design system, correct the thread
density and overstitching settings in the
embroidery data.
190
Lint or dust has accumulated in the thread
tension disc.
176
The bobbin thread breaks.
The bobbin thread is not correctly threaded. 34
The bobbin is scratched or does not rotate
smoothly.
• Replace the bobbin.
33
The bobbin case is damaged.
• Replace the bobbin case.
33
The thread is tangled. 173
A bobbin designed specifically for this machine is
not used.
33
Lint or dust has accumulated in the thread
tension disc.
176
Stitches are skipped.
The upper thread is not threaded correctly. 82
The needle is bent or blunt. 176
The needle is not installed correctly. 176
Dust has accumulated under the needle plate or
in the hook.
173, 174
The needle and the hook are not correctly
passing each other.
*
The thread twist is either too tight or too loose.
• Improper twisting results in irregular loop
formation. Try using a new spool.
—
Symptom
Probable Cause/Remedy Page
The embroidery pattern is misaligned.
The thread is tangled.
• Use tweezers to remove any tangled thread
from the hook.
—
The fabric is not secured in the embroidery frame
(for example, the fabric is not taut).
61, 62
The embroidery frame is too large for the size of
the embroidery.
65
The thumb screws on the embroidery frame
holder are loose.
21
Appropriate stabilizer (backing) is not used. 60
The embroidery frame is not correctly attached to
the carriage.
• Correctly attach the embroidery frame to the
carriage. Make sure that the pins on the left
and right arms of the embroidery frame holder
securely fit into the holes in the handles on the
embroidery frame.
64
The carriage or the embroidery frame is hitting
objects.
• The pattern may become misaligned if the
carriage or embroidery frame is hitting objects.
—
The fabric is caught or pinched.
• Stop the machine, and then correctly position
the fabric.
—
The carriage moved while removing embroidery
frame.
• The pattern may become misaligned if the
presser foot was hit or the carriage was moved
while embroidery.
• Be careful when removing and reattaching the
embroidery frame while embroidery.
If the carriage is moved, turn the machine off,
then on again. The correct frame position at the
time that the machine was stopped is stored in
the machine’s memory, and the embroidery
frame is returned to the correct position.
—
The design was not digitized correctly.
• The design may need more pull compensation
or underlay to accommodate stretchy or high-
napped fabrics.
—
The size of the installed embroidery frame is not
correctly detected.
The thumb screws on the embroidery frame
holder are loose.
21
The starting position for the embroidery frame is
horizontally misaligned.
The thumb screws on the embroidery frame
holder are loose.
21
Symptom
Probable Cause/Remedy Page
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