SINGER XL-580 - Manual (Page 86)

84
TROUBLESHOOTING
SKIPPED STITCHES AND THREAD
BREAKAGES OCCUR
Needle tip is broken.
Replace needle.
Needle is bent.
Replace needle.
Needle is not installed
correctly.
Install the needle correctly.
Refer to page 20 - 21.
Upper thread tension is
too tight.
Adjust the thread tension.
Refer to page 22 - 23.
To check the elasticity
of the thread, hold a
length of thread of about
6 inches at both ends
and pull it, check the
length at which it breaks.
If using a highly-elastic
thread, reduce the upper
thread tension.
Thread path is
incorrect.
Refer to page 16 - 19.
Thread is tangled
around spool holder.
Thread or fabric bits
have collected under
the needle plate.
Remove the thread
or fabric bits. Refer to
page 110 - 111.
A thin needle is being
used for heavy fabric.
Replace with a thicker
needle. Generally, at
least a #14 needle
should be used.
Refer to page 10 - 11.