Singer 6699 I STARLET Instruction Manual - Page 65
Performance Checklist
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5. PERFORMANCE CHECKLIST 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 buttonhole lever. * Buttonhole lever is not lowered when sewing buttonhole. - Lower buttonhole lever. * Bobbin winder is engaged. - Disengage bobbin winder (see page 16). Machine jams/knocks. * Thread is caught in hook. - Clean hook (see page 60 - 61). * Needle is damaged. - Replace needle (see page 24). Fabric does not move. * Presser foot is not lowered - Lower 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 (see page 24). * Needle is bent or blunt. - Replace needle (see page 24). * Machine is not threaded correctly (see page 18 -19). * Thread is caught in hook. - Clean hook (see page 60 - 61). Stitches are irregular. * Needle size is not correct for thread and fabric (see page 24). * Machine is not threaded correctly (see page 18 - 19). * Top thread tension is too loose (see page 25). * Fabric is being pulled or pushed against machine feeding action. - Guide it gently. * Bobbin has not been wound evenly. - Rewind 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 (see page 24). * Needle is not all the way up into the needle clamp (see page 24). * Too much thread appears on the underside of stitching. * Upper thread not correctly thread (see page 18 - 19 ). THREAD PROBLEMS Thread bunches. * Top and bobbin threads are not drawn back under presser foot before starting seam. - Draw both threads back under presser foot about 6 inches (10 cm) and hold until a few stitches are formed. Needle thread breaks. * Machine is not threaded correctly (see page 18 - 19). * Top thread tension is too tight (see page 25). * Needle is bent. - Replace needle (see page 24). * Needle size is not correct for thread and fabric (see page 22 - 23). Bobbin thread breaks. * Bobbin case is not threaded correctly (see page 17). * Lint accumulates in bobbin case or hook. - Remove lint (see page 60 - 61). Fabric puckers. * Top thread tension is too tight. - Adjust thread tension (see page 25). * Stitch length is too long for sheer or soft fabric. - Shorten stitch ngth. 63