Question about Simplicity DecoMate S07 Mechanical Sewing Machine

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So frustrated. The bottom thread just balls up - loops - I cannot even sew a straight line. Simplicity S07 is my model.

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  • Simplicity Master
  • 7,365 Answers

Try changing the needle
do you have a manual for the machine?

Posted on Apr 14, 2012

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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talk2ginny
  • 34 Answers

SOURCE: thread breaking on Simplicity Denim Star

Hi, when your thread breaks or frays right before in goes through the eye of the needle:

  1. Change your needle - after awhile, the eye can wear down and cause your thread to break or fray, eventhough it looks like the thread isn't even going through the needle. When you change your needle, make sure to install a needle that is compatible with the thread you are using (see below).
  2. If your thread still frays or breaks, make sure you've threaded your machine correctly. Most machines have a hook or bar right above the needle that your thread need to pass thru before you put the thread thru the eye of your needle. Sometimes that spot above the needle is really hard to get to, and sometimes the thread slips out. Always a good idea to double check. If you are still having problems, the needle you are using is probably the wrong size.
There are lots of needles on the market, and lots of threads. You need to make sure your needle is compatible with the thread you use for each project.

The most common needles are size 80 and 90 universal needles, which are fine for most sewing projects. But if you are using a specialty thread, you need to use a needle that is designed to work with that particular thread. For example, top stitching needles have a larger eye than a universal needle, because top stitching thread is thicker than sewing thread. The same is true for metallic thread - needles made for metallic thread an eye designed to allow the thread to pass thru without fraying. Further, if you using fine thread, you need a small needle.

FYI - unfortunately, thread sizes do not correspond directly with needle sizes. Small needle numbers indicate a needle with a small eye. But the smaller the thread size, the larger the thread. For example, size 50 thread is very fine and would usually be used with a size 70 needle. Size 30 thread is fairly thick and would probably be used with a size 90 top stitch needle.

Hope this helps, and remember, you should always change your needle after about 10 hours of sewing, no matter what size needle you are using. If you have more questions, please post again. Thanks, Ginny

Posted on Jan 31, 2009

  • 76 Answers

SOURCE: threading instruction for model #1220 simplicity

http://www.sewingstyle.com/Simplicity-Sewing-Manuals.htmlnot
not sure if you have the manual, try this site for a manual,

Posted on Sep 03, 2009

  • 2 Answers

SOURCE: not completly threading or something

i was told this is a timing problem

Posted on Mar 26, 2010

  • 5 Answers

SOURCE: How to properly thread the bobbin

From the Simplicity Sew Precious Model SWSP2 manual:
Inserting a new bobbin:

  1. Place wound bobbin into the bobbin case.
  2. Pull about 6 inches of thread out from the bobbin. NOTE: Be sure that the bobbin rotates COUNTER-CLOCKWISE when thread is pulled.
  3. Pass the thread from the bobbin, under the bobbin case spring, and toward the back of the machine.
  4. Slide bobbin cover back into position.

You can obtain a copy in pdf format for free at:
http://www.simplicityhomecare.com/ftp/whitepapers/SWSP2-english.pdf

Posted on Jul 29, 2010

Tally Girl
  • 1129 Answers

SOURCE: I have a Simplicity Fashion Pro SW2145. My bottom

Most likely caused by issues with your top tension if it is showing on the underside of the fabric, top thread is not being tensioned fully or at all. Check the tension dial is set to five and that the top thread is between the tension discs and under tension.

Best way is to lower the pressure foot as this engages the top tension. Then pull the thread from below the tension device, down near the needle bar, it should feel firm to you.

If not, then check top threading again, rethread and pull thread into the tension device, and test again. If there is some tension there, then you could try turning the top tension dial up to a higher number a little to see if this helps with the stitching.

Failing that, take it for a service, tension device is probably faulty.

Posted on May 24, 2011

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i was told this is a timing problem

Feb 26, 2010 | Simplicity Denim Star SW210

2 Answers

Thread looping on the bottom


Thread looping on the bottom means you have a problem with the top thread. In your case there is no tension on your top thread. Take all the thread out of the top and start threading over. Make sure you follow the correct path and make sure the thread goes through the tension discs. Then at the time of sewing, make sure your foot is down (this closes the tension discs and gives the thread the tension.) You may have worked on the tension setting while not realizing the thread was not in between theses discs, so also make sure the top tension disc setting is in the average before sewing.
Good luck.

(If you see loops on top, it means you have a problem with the bottom thread)

May 25, 2009 | PfaFF Tiptronic 2040

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Top thread tension tight


March 12, 2009

kenmore 385.17922
i have started using my machine again (after several years) and am doing patchwork.. all has been fine, and suddenly the bottom thread (bobbin) is looping. i've adjusted the tension nob from 4 (where i had it) to 5...back to 4.. 41/2....3 1/2....5 1/2... on and on and the bottom thread still keeps looping.
i've read and re-read the manual...and the only suggestion it gives is to adjust the tension button.
it's not working...... what else can i try??
thanks
eva

Mar 11, 2009 | Kenmore Sewing Machines

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Bottom thread is very very loose during stitching, looped up


Looping on bottom:
Great description, that helps a lot. Big loops are actually easier to solve usually. 1st know this: Loops on bottom means the top is too loose or the bottom is too tight. With loops that big its probably the top is too loose. 1st look in tension disks, there is likely a chunk of thread in there. A toothpick is handy to dig it out (the flat kind) 2nd make sure that the thread is getting between the disks when threaded. 3rd Make sure the thread is in the take up lever (the thing that moves up and down in front and not the needle bar or any part of the needle bar.) If neither, then the bobbin case could have a burr on it and the thread is hanging on that burr. Also the bobbin case may be in wrong. I hope this helps
Kent581

Mar 03, 2009 | Husqvarna Viking 1

1 Answer

Thread keeps wrapping around bobbin


frustrating huh?  it happens!  even to us that have been sewing for 50+ years, but the solution is very simple.  Top thread tension is the culprit.  pull the spool all the way off and rethread the top, follow the threading path precisely and make sure the thread goes down into the tension discs.
one more thing - when that happens often times the piece has to be removed from the machine by cutting those annoying loops on the bottom.  if this is the case, make sure you have removed all the thread clippings from in and around the bobbin case.  sometimes one little piece of thread will make you want to use swear words.
good luck and happy stitching.

Jan 17, 2009 | Husqvarna Viking 1

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