SINGER W1710 - Manual (Page 52)

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33. TROUBLE CHART
PROBLEM PROBABLE CAUSE CORRECION
Breaking lower
thread
Thread not wound evenly on the bobbin or not drawn
up correctly
P. 8, P.40
Lower thread tension too tight P. 44
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. 39
Needle bent P. 39
Size or type of needle and thread not suitable for the
material
P. 9
Incorrect upper threading P. 6
Too much oil on the shuttle P. 48
Irregular stitches Incorrect size of needle for the material P. 9
Upper thread tension too loose P . 1 2
Incorrect lower tension P. 44
The material not
fed correctly Pattern selection dial not set correctly
Incorrect feed dog height
P. 10
P. 24
Lint stuck on the feed dog P. 47
The material Upper or lower thread thread tension too tight P. .44, P. 12
puckers
Stitch too long for material P. 10
Thread too thick P, 9
Incorrect threading of upper or lower thread P. 6, P. 43
Breaking needle Needle not correctly inserted P. 39
[SJooHjp h©nt P. 39
Needle clamp screw too loose P. 39
Upper thread tension too tight P. 12
N66UI6 too fin© for the mStSnai P. 9
Dials and levers have been changed while the needle
was down in the material
P. 10, P. 13
Zigzag width set more than 2.5 while twin needle was
attached
P. 38
*lf trouble is still apparent in the machine, please consult your nearest dealer.
Do not try to correct fault by yourself.
For adjusting the tension of any belts, please do not try to adjust it by yourself but contact
your nearest dealer.
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