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Before calling for service, check the following items.
If the problem still persists, contact the place of purchase or your nearest authorized retailer.
TROUBLE SHOOTING
Problem
Cause
Correction Reference
101
Upper
thread
breaks
Lower
thread
breaks
Skipped
stitches
Needle
breaks
Loose
stitches
Seams
gather or
pucker
1. The machine is not threaded correctly.
2. The thread tension is too tight.
3. The thread is too thick for the needle.
4. The needle is not inserted correctly.
5. The thread is wound around the spool
holder pin.
6. The needle is damaged.
1.The bobbin case is not inserted
correctly.
2. The bobbin case is threaded wrong.
3. The lower thread tension is too tight.
1. The needle is not inserted correctly.
2. The needle is damaged.
3. The wrong size needle has been used.
4. The foot is not attached correctly.
5. The machine is not threaded correctly.
6. The presser foot pressure is not strong
enough.
1. The needle is damaged.
2. The needle is not correctly inserted.
3. Wrong needle size for the fabric.
4. The wrong foot is attached.
5. The needle clamp screw is loose.
6. The presser foot that is used is not
appro-priate for the type of stitch that
you wish to sew.
7. The upper thread tension is too tight.
1. The machine is not correctly threaded.
2. The bobbin case is not correctly threaded.
3. Needle/fabric/thread combination is
wrong.
4. Thread tension is wrong.
1. The needle is too thick for the fabric.
2. The stitch length is adjusted wrong.
3. The thread tension is too tight.
1. Select a finer needle.
2. Readjust the stitch length.
3. Loosen the thread tension.
1. Rethread the machine.
2. Rethread the bobbin case.
3. The needle size must match the fabric
and thread.
4. Correct the thread tension.
1. Insert a new needle.
2. Insert the needle correctly (flat side
towards the back).
3. Choose a needle to match the thread
and fabric.
4. Select the correct foot.
5. Use the screwdriver to firmly tighten the
screw.
6.Attach the presser foot that is
appropriate for the type of stitch that you
wish to sew.
7. Loosen the upper thread tension.
1. Remove and reinsert needle (flat side
towards the back).
2. Insert a new needle.
3. Choose a needle to match the thread.
4. Check and attach correctly.
5. Rethread the machine.
6. Adjusting the presser foot pressure.
1. Remove and reinsert the bobbin case
and pull on the thread. The thread should
pull easily.
2. Rethread both bobbin and bobbin case.
3. Loosen lower thread tension.
1. Rethread the machine.
2. Reduce the thread tension to a lower
number.
3. Select a larger needle.
4. Remove and reinsert the needle (flat
side towards the back).
5.Remove the spool of thread and
rethread machine.
6. Replace the needle.
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102


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