Trouble chart – SINGER W1033 User Manual
Page 30
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12. TROUBLE CHART
PROBLEM
PROBABLE CAUSE
CORRECTION
Breaking lower
thread
Thread not wound evenly on the bobbin
or not drawn up correctly
P.9 P . 1 3
Lower thread tension too tight
P . 1 1
Lint stuck in the bobbin case and inside
the tension spring
Remove lint
and fluff with a
cleaning brush
Skipping stitches
Needle not fully inserted
P.6
Needle bent
P.6
Size or type of needle and thread not
suitable for the material
P . 1 4
Incorrect upper threading
P . 1 2
Too much oil on the hook
P.26
Irregular stitches
Incorrect size of needle for the material
P . 1 4
Upper thread tension too loose
P . 1 7
Incorrect lower tension
P . 1 1
The material not
fed correctly
Incorrect feed dog height
Lint stuck on the feed dog
P . 1 1
P.25
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