84
APPENDIX
— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
The thread tension
is incorrect.
The thread tension is incorrect.
Adjust the tension of the upper thread
and the bobbin thread.
page 64,
page 65
A bobbin designed specifically for
this machine is not used.
Incorrect bobbins will not work
properly. Only use a bobbin
designed specifically for this
machine.
page 29
The upper thread is
too tight.
The bobbin thread is incorrectly
installed.
Correctly install the bobbin thread.
page 34
Stitches are
skipped.
The upper thread was not
threaded correctly.
Correct the upper threading.
page 38
The needle is bent or blunt.
Replace the needle.
page 28
The needle is incorrectly installed. Correctly install the needle.
page 28
Dust has accumulated under the
needle plate or in the bobbin case.
Remove the needle plate cover and
clean the race.
page 78
A high-pitched
noise is made
while
embroidering.
Dust has accumulated in the
bobbin case.
Clean the race.
page 78
The upper thread was not
threaded correctly.
Correct the upper threading.
page 38
The bobbin case is scratched, or
has a burr on it.
Replace the bobbin case.
Contact your dealer or the nearest
authorized service center.
-
A bobbin designed specifically for
this machine is not used.
Incorrect bobbins will not work
properly. Only use a bobbin
designed specifically for this
machine.
page 29
The thread does
not pass through
the eye of the
needle.
The needle has not been raised to
the correct position.
Press the needle position button.
page 38
The needle is incorrectly installed. Correctly install the needle.
page 28
The stitch is not
sewn correctly.
The thread tension is incorrect.
Adjust the tension of the upper thread
and the bobbin thread.
page 64,
page 65
The thread is tangled, for example,
in the bobbin case.
Remove the tangle thread. If the
thread is tangled in the bobbin case,
clean the race.
page 78
The needle
threader lever does
not lower to the
correct position.
The needle has not been raised to
the correct position.
Press the needle position button.
page 38
The lamps do not
come on.
The lamps are damaged.
Contact your dealer or the nearest
authorized service center.
-
The machine is not turned on.
Turn on the machine.
page 18
Nothing appears in
the LCD.
The brightness of the LCD is either
too light or too dark.
Adjust the brightness of the LCD.
page 89
Symptom
Probable Cause
Remedy
Reference
