TROUBLE CHART
Trouble | Probable Cause |
Machine does | Not plugged in properly. |
not sew | Power supply switch is not on. |
| Thread is stuck in the hook groove. |
Bobbin winder | Spindle is pushed to the right. |
Making noise | Lack of oil. |
Running slowly | Lint or thread stuck in rotary hook. |
| Lint stuck in feed dog. |
| Machine kept in avery cold or very |
| hot place. |
Breaking upper | Improper upper threading. |
thread | Upper thread tension too tight. |
| Bent or blunt needle. |
| Improper needle setting |
| Removing fabric when |
| is not in the highest position. |
| Upper thread toothick or too thin for |
| needle used. |
| Needle hole on needle plate damaged. |
Breaking lower | Thread not wound evenly on bobbin |
thread | or not drawn up correctly. |
| Lower thread tension too tight. |
| Lint stuck in bobbin case and inside |
| tension spring. |
| Improper lower threading. |
Skipping | Improper needle setting |
stitches | Bent needle. |
| Improper needle and/or thread for fabric. |
Correct Operation
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Leave machine in a normally
warm room for a few hours
before use.
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See Page
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