18
Malfunction
Malfunction
Cause
Cause
Explanation
Explanation
1. Upper thread tension is too tight.
See Page 7
2.Threading is not correct
See Page 7
Fabric puckers
3.Needle is too thick for the fabric
See Page 5
4.Stitches are too big to the cloth to be sewn.
See Page 8
Non-woven lining under the cloth is required
for very thin cloth to be stitched.
1.Upper thread pressure it too weak.
See Page 7
Loop in seam.
2.The combination of needle size / thread
See Page 5
size / fabric is incorrect, either too thick or too thin.
Fabric does not
1.Feed dog is stained by fine hair.
See Page 16
feed propertly
2.Feed dog is not hoisted.
See Page 8
3.Stitching is too small.
See Page 8
1.Main power switch is turned off.
See Page 16
Machine does
not work
2.thread in the hook is tangled
See Page 6
3.Clutch release switch ıs set at bobbin mark.
See Page 16
Machine is noisy
1.thread in the hook is tangled.
See Page 16
and works slowly.
2.feed dog is stained by fine hair.
See Page 16
Insufficient oiling.
Anl.790.GB/SE/DK/FI/CZ/HU 13.09.2006 13:33 Uhr Seite 20