Kenmore sewing machine model 15817740

If it is an older mechanical machine, 1-2 drops oil (ONLY fresh, good quality sewing machine oil) applied every place where metal rubs against metal. AVOID belts, plastic gears, CAMS. Slowly hand-rotate or wiggle the handwheel, watch where metal parts move against each other and apply a couple drops. Be sure to get the top mechanism, the side mechanism where the needlebar is located, and under the sewing surface, ie the feed dogs area. Also, move levers and dials and apply a couple drops where metal rubs metal.

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It sounds like your upper tension is too loose. A good place to start adjusting is at the number three on your tension dial, but you need to pay attention to how the stitches look rather than what the number on the dial is. I wrote a Tip on Adjusting Tension. Take a look at that and see if it helps.

Robbie

CHANGE UR STICH SIZE AND TIGHT UR TENSION DISK

hi! there,
white cam plate are mounted on top side of your machine there
is shaft for mounting on figure the plate cover opening for cam,then adjust the dial for the neccessary cam designed.
you have to replace the presser foot on figures. this presser foot is more convenient to use on designed cam
the stitch adjustment should # 8 to # 12 just select w/c more convenient to yuo,dial tension set to # 3 to # 6.

have a nice day,don't forget to rate me,thank's

hi! this particular problem is common when tension and stiches adjustment does not match and complied to fabrics your trying to sew,there a is hard way to find manual specialy to old ones. but if you want it may help you some i got here on manual sears 1803.if your control look similar to this in figure there are stitch control one for straight stitching and one
on special stitching.the small dial near needle is tension dial.You can set tension on # 3 to 5
stitch dial as in figureif you are
sewing a straight stiches set to # 8 to 12 trial are needed somtimes to acquired smooth sewing,Be sure no mechanical problem regarding in machine operation.try to sew a cotton fabric for trial then if sewing another fabrics sudden adjustment should be done.If your machine is equipted by auto tension just select on the fabrics.well small information can sometime helpfull ...nice sewing

Try setting the stitch width to zero and then change stitches. The cam feeler may be in the way.
good luck

You have selected the Stretch Stich (SS) mode on the stitch length regulator, just turn the knob around until you have a number 1 - 5 and that should be it.
The model number will be the last digits on the metal compliance plate with voltage etc.....looks like:
V / 1234 / 123454321 / 2016
www.bargainbox.com.au
This then would be a Model 2016

hi! there wind thread on bobbins winder 4 times by your hand rotate clockwise,insert in shaft bobiins winder on top of your machine near hand wheel push latch to engage loop thread on disc winder tension start your machine on pedal foot automatically winder disengage if already filled up of thead pull this winder and insert to bobbins casing insert thread to slot and pull out winder should rotate clockwise as shown.insert on shuttle hook casing and close cover needle plate.next thread your upper

threading tension as shown on red threading from spool pull threading and loop to dial tension threading and insert thread to lever needle and to needle hole tip. pull tread under the needle foot and feeder tooth.rotate hand wheel counter clockwise to hook up thread bobbibs and appear at top of needle plate,teo thread shoul appear,set dial tension to # 3 and stich to # 8 range to # 12 depend on fabric and layer of fabrics and set on straight stich sewing,let needle on upper position insert fabric for trial sewiing.put down foot needle lever. manually by hand rotate for assurance needle is free to sew if obtruction on loop bobbins thread occurs adjust all tension gradually then try again until free from sewing w/o problem star sewing.

Suggest that it be serviced by an authorized Husqvarna Viking Dealer. You can find the nearest dealer by click on the "Dealer" link at http://www.husqvarnaviking.com
Good luck.