6 Thread tension is set incorrectly.
7 Wrong presser foot.
1 Dust or lint is caught in the feed dogs.
2 Pieces of thread are caught in the race.
3 Upper threading is incorrect.

4 There are scratches on the race.

1 Needle is not in the correct position.

2 Threading hook does not pass through

the eye of the needle.

3 Needle is installed incorrectly.
1 Upper threading is incorrect.

2 Bobbin is set incorrectly.
3 Using improper needle or thread for the

selected fabric.

4 Presser foot holder is not attached cor-

rectly.

5 Thread tension is set incorrectly.
1 Wrong presser foot was used.
2 Pattern adjustment settings were set

incorrectly.

3 Did not use a stabilizer material on thin

fabrics or stretch fabrics.

4 Thread tension is set incorrectly.

Fabric

puckers

Check the steps for threading the
machine and rethread it correctly.
Check the method for attaching the
spool cap, then reattach the spool
cap.
Check the “Fabric/Thread/Needle
Combination” chart.
Replace the needle.
Shorten the stitch length.

Adjust the thread tension.
Use correct presser foot.
Remove the dust or lint.
Clean the race.
Check the steps for threading the
machine and rethread the ma-
chine.
Replace the race, or consult your
authorized dealer.
Press the “Needle Position” button
to raise the needle.
Press the “Needle Position” button
to raise the needle.
Reinstall the needle correctly.
Check the steps for threading the
machine and rethread the ma-
chine.
Reset the bobbin.
Check the “Fabric/Thread/Needle
Combination” chart.
Reattach the presser foot holder
correctly.
Adjust the thread tension.
Attach the correct presser foot.
Revise the pattern adjustment set-
tings.
Attach a stabilizer material.