Trouble chart – SINGER W1210 User Manual
Page 44
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21.TROUBLE CHART
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PROBLEM
PROBABLE CAUSE
CORRECTI
Breaking lower
thread
Thread not wound evenly on the bobbin
or not drawn up correctly
P.10, P.1
Lower thread tension too tight
P.12
Lint stuck in the bobbin case and inside
the tension spring
Remove lin
and fluff wi'
cleaning br
Skipping stitches
Needle not fully inserted
P. 7
Needle bent
P. 7
Size or type of needle and thread not
suitable for the material
P.16
Incorrect upper threading
P.13
Too much oil on the hook
P.40
Irregular stitches
Incorrect size of needle for the material
P.16
Upper thread tension too loose
P.19
Incorrect lower tension
P.12
The material not
Pattern selection dial not set correctly
P.17
fed correctly
Incorrect feed dog height
P.12
L'int stuck on the feed dog
P.39
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