Loading ...
Loading ...
Loading ...
Troubleshooting
Appendix A-15
MAINTENANCE AND TROUBLESHOOTING
A
The thread is
tangled on the
wrong side of the
fabric.
Upper threading is incorrect.
Check the steps for threading the machine and
rethread the machine.
Be sure that the presser foot is in the raised
position when threading the machine so that the
upper thread sets properly in the upper tension.
B-21, A-5
Using improper needle or thread for the
selected fabric.
Check the “Fabric/Thread/Needle
Combinations” chart.
B-28
The upper thread is
too tight.
The bobbin thread is incorrectly installed. Correctly install the bobbin thread. B-18, A-4
Bobbin thread
breaks.
Bobbin is set incorrectly. Reset the bobbin correctly. B-18
Bobbin thread is incorrectly wound. Use a correctly wound bobbin. B-15
There are scratches on the bobbin or it doesn’t
rotate properly.
Replace the bobbin. B-18
Thread is tangled.
Use scissors, etc. to cut the tangled thread and
remove it from the race, etc.
A-8
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.
B-15
Fabric puckers.
There is a mistake in the upper or bobbin
threading.
Check the steps for threading the machine and
rethread it correctly.
B-21
Spool cap is set incorrectly.
Check the method for attaching the spool cap,
then reattach the spool cap.
B-21
Using improper needle or thread for the
selected fabric.
Check the “Fabric/Thread/Needle
Combinations” chart.
B-28
Needle is turned, bent or the point is dull. Replace the needle. B-29
Stitches are too long when sewing thin fabrics. Shorten the stitch length. B-40
Thread tension is set incorrectly. Adjust the thread tension. B-41
Wrong presser foot. Use the correct presser foot. B-32
Skipped stitches
Machine is threaded incorrectly.
Check the steps for threading the machine and
rethread it correctly.
B-21
Using improper needle or thread for the
selected fabric.
Check the “Fabric/Thread/Needle
Combinations” chart.
B-28
Needle is turned, bent or the point is dull. Replace the needle. B-29
Needle is installed incorrectly. Reinstall the needle correctly. B-29
The needle is worn/damaged. Replace the needle. B-29
Dust or lint has collected under the needle
plate.
Remove the dust or lint with the brush. A-2
Thin or stretch fabrics are being sewn.
Sew with one sheet of thin paper under the
fabric.
S-4, D-3
No stitching
Needle is turned, bent or the point is dull. Replace the needle. B-29
Bobbin is set incorrectly. Reset the bobbin thread correctly. B-18
Upper threading is incorrect.
Check the steps for threading the machine and
rethread the machine.
B-21
Symptom Probable Cause Remedy Reference
Loading ...
Loading ...
Loading ...