SunStar HC Series User Manual page 59

Error Type
Thread breaks
Stitch is too small/dense
for thread
Frequent thread break in
the same spot
Inadequate needle size
for thread
Needle damage (bent,
dent, worn)
Incorrect needle
installation
(height, direction, etc.)
Dirty needle (adhesive,
etc.)
Cause
Re-punch design tape
Re-punch after checking
design
Correct
operation box
Change needle
Change needle
Re-install needle
Clean or change needle and
hook
Inspection & Repair
the stitches on
Reference
Check design
Use minimum adhesive for
appliqu