SINGER W6105 - Manual (Page 25)

PROBLEMS ^ AND PROBABLE CAUSES
In must cases, poor sewing results are due to a damaged needle. Always examine
needle f irst tielore checking other items.
1, SKIPPING STITCHES
l)cnl or blunt needle
wiong size needle
needle inserted incorrectly
needle threaded incorrectly
upper thread tension loo tight
pressure on presser toot too light
2. UNEVEN STITCHES
bent 01 blunt needle
wrong size needle
incorrect threading
pulling fabric while sewing
upper thread tension loo loose
|)iessurc on pressei foot tooliglit
loose presser fool
fabric feed too low
bobbin would unevenly
bobbin inserted incorrectly in case
NEEDLE BREAKS
bent needle touches needle plate or presser foot
needle inserted incorrectly
pulling fabric while sewing
loose presser fool touches needle
needle loo tine lor fabric
moving stitch ptiltern lever or stitch width
dial with needle in labric
4. UPPER THREAD BREAKS
bent or blunt needle
incorrect threading
upper tension ioo tight
needle inserted incorieclly
needle touches presser foot
needle eye has sharp edges
poor quality threail
knots in thread
starling to stitch loo fast
thread jammed in shuttle
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lower THREAD breaks
• bobbin case threaded incorrectly
• bobbin case inserted incorrectly in machine
• bobbin wound unevenly
• bobbin wound too full
• bobbin tension too tiglit
• rougli edge in hole of needle plate
• bent bobbin
• poor quality thread
7.
FABRIC PUCKERS
• bent or blunt needle
• upper thread tension too tiglrt
• botJi upper and lower tensions too tight
• using two diflerent kinds ot sizes ot thread
• fabric too sheer or soft (use tissue paper underlay)
MACHINE DOES NOT FEED FABRIC
• stitch length knob set at 0
• fabric feed on DARN
• presser foot not down completely
• thread knotted under fabric
BUNCHING OF THREAD UNDER FABRIC
• upper and lower threads not drawn back under presser foot
• fabric teed on DARN
10 .
BOBBIN DOES NOT WIND PROPERLY
• incorrect threading
• bobbin winder thread guide not positioned correctly
• bobbin not positioned correctly on spindle
• bobbin winder not engaged with hand wheel
MACHINE RUNS SLUGGISHLY
• dirt or lint between teeth of fabric feed
• dirt 01 lint in shuttle
• machine needs oiling
11. MACHINE WILL NOT SEW
• cord iu)i plugged into outlet
• cord not plugged into "Motor’’ socket in Cabinet or case
• stop motion knob not tightened
• motor licit too loose rrr broken
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