PERFORMANCE CHECKLIST
33
GENERAL PROBLEMS
Machine does not sew.
* Power switch is turned off. - Turn on the switch.
* Buttonhole lever is not raised when sewing stitch patterns. - Raise the buttonhole lever.
* Buttonhole lever is not lowered when sewing buttonhole. - Lower the buttonhole lever.
* Bobbin winder is engaged. - Disengage the bobbin winder (see page 5).
Machine jams/knocks.
* Thread is caught in the bobbin case. - Clean the bobbin case (see page 32).
* Needle is damaged. - Replace the needle (see page 10).
Fabric does not move.
* Presser foot is not lowered - Lower the presser foot.
* Stitch length is too short - Lengthen stitch length.
STITCHING PROBLEMS
Machine skips stitches.
* Needle is not all the way up into needle clamp. - Replace the needle (see page 10).
* Needle is bent or blunt. - Replace the needle (see page 10).
* Machine is not threaded correctly. - Threading the thread again (see page 7).
* Thread is caught in the bobbin case. - Clean the bobbin case (see page 32).
Stitches are irregular.
* Needle size is not correct for thread and fabric. - Reinstall the needle (see page 10).
* Machine is not threaded correctly. - Threading the thread again (see page 7).
* Top thread tension is too loose. - Adjust the top tension (see page 11).
* Fabric is being pulled or pushed against machine feeding action. - Guide it gently.
* Bobbin has not been wound evenly. - Rewind the bobbin.
Needle breaks.
* Fabric is being pulled or pushed against machine feeding action. - Guide it gently.
* Needle size is not correct for thread and fabric. - Reinstall the needle (see page 10).
* Needle is not all the way up into the needle clamp. - Replace the needle (see page 10).
* Twin needle is being used but stitch width is set too wide. - Adjust the stitch width (see page 31).
* Too much thread appears on the underside of stitching. - Clean the unnecessary thread.
* Upper thread not correctly thread. - Threading the thread again (see page 7).
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