48
Trouble shooting guide
Before calling for service, check the following items. If the problem still persists, contact the
place of purchase or your nearest authorized dealer.
Problem Cause Correction
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.
1. Rethread the machine.
2. Reduce the thread tension
(lowernumber).
3. Select a larger needle.
4. Remove and reinsert the
needle(atsidetowards
the back).
5. Remove the reel and wind
up the thread onto the reel.
6. Replace the needle.
Upper
thread
breaks
1. Remove and reinsert the
bobbin case and pull on the
thread. The thread should
run easily.
2. Check both bobbin and
bobbin case.
Lower
thread
breaks
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.
1. Remove and reinsert the
needle(atsidetowards
the back).
2. Insert a new needle.
3. Choose a needle to suit the
thread.
4. Check and attach it
correctly.
5. Rethread the machine.
Skipped
stitches
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.
1. Insert a new needle.
2. Insert the needle correctly
(atsidetowardstheback).
3. Choose a needle to suit the
thread and fabric.
4. Select the correct foot.
5. Use the screwdriver to
tighten the screw.
Needle
breaks
Reference
10
18
14
14
10
14
8
8
14
14
14
16
10
14
14
14
14
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