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Elementary troubleshooting
Trouble
Cause
Remedy
Unable to feed cloth
.
The presser foot has
Turn the pressure knurl clockwise to
an insufficient
pressure.
increase
pressure.
The needle
breaks.
1.
The needle is
bent,
or
1.
Replace the needle for a new
one.
the needle point becomes dull.
2.
Re-install the needle correctly.
2.
The needle is installed incorrectly.
3. Hold down the cloth gently.
3.
Pull the cloth incorrectly.
The thread breaks.
1.
Thread the needle
incorrectly.
1. Re-thread the needle correctly.
2. The thread
tangles.
2.
Check the thread spool post, thread
3.
The thread tension is too tight.
tree and others, and remove the
4.
The needle is installed incorrectly.
tangled threads
.
5.
Use an unsuitable needle.
3. Adjust thread tension.
4. Re-install the needle
correctly.
5.
Use a suitable
needle.
Skipped stitches
1.
The needle is
bent,
or the needle
1.
Replace the needle for a new
one.
point becomes dull.
2.
Re-install the needle correctly.
2. The needle is installed incorrectly.
3. Use a suitable needle.
3. Use an unsuitable needle.
4. Re-thread the needle correctly.
4. Thread the needle
incorrectly.
5. Turn the pressure knurl clockwise to
5. The presser foot has an
increase the pressure.
insufficient
pressure.
Bad stitches
The thread tension is not
adjusted.
Adjust the thread tension
.
The cloth
wrinkles.
1.
The thread tension is too tight.
1.
Reduce the thread tension when you
2. Thread the needle incorrectly, or
sew the light or the thin cloth.
the thread tangles
.
2.
Remove all the tangled threads, and
re-thread the needle correctly.
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