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WHAT TO DO
3BLEM PROBABLE CAUSE CORRECTION
_gular
tches
Incorrect size needle
Improper threading
Loose upper thread tension
Pulling fabric
Light pressure on presser foot
Loose presser foot.
Uneventy wound bobbin
Pulling fabric
_aking Incorrect size needle
_edte Incorrect setting of needle
Loose presser foot
Choose correct size needle for thread and fabric (page 5)
Rethread machine (page 9}
Tighten upper thread tension (page 12)
Do not putt fabric; guide it gently
Increase pressure on presser foot (page 10}
Reset presser foot (page 15)
Rewind bobbin (page 7}
Do not pull fabric; guide it gentry
Choose correct size needle for thread and fabric (page 5)
Reset needle (page 5).
Reset presser foot (page 15)
Upper and lower threads not Draw both threads back under presser foot (page 10)
:hing of drawn back under presser foot
bread Feed dog down Raise feed dog (page 15)
kering
Incorrect thread tension (s}
Light pressure on presser foot
Using two different sizes or
kinds of thread
Bent or blunt needle
Loose presser foot
Fabric too sheer or too soft
Reset thread tension (s) (pages 12, !3)
Increase pressure on presser foot (page 10)
Upper thread and bobbin thread should be same size
and kind
Insert new needle (page 5)
Reset presser foot (page 15)
Use underlay of tissue paper or tarlatan when stitching