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2. The needle is blunt or bent. Your needle should be changed
before each large project or if it hits the needle plate or hook. A
damaged needle can also snag most fabrics.
3. The tension is not correct. In most cases the top tension is set to a
medium number for regular sewing. Make sure the thread is
between the tension discs. Make sure the pressure foot is up when
threading your machine. (this will release the tension discs) Check
for lint or thread caught in the discs.
4. Type of thread being used can cause problems. Always use good
quality thread. When using heavy thread in the top you will have to
use a larger needle. The groove in the needle must fit the thread.
UPPER THREAD BREAKS
1. Check that the needle is inserted correctly and not damaged.
Check size of needle for thread.
2. Check your threading. There should be free movement of the
thread from spool to needle.
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