Question about Simplicity American Denim SA1100 Mechanical Sewing Machine

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Simplicity Denim Star SW 210

My thread keeps getting wound around the shuttle race and making loops on the back of my seams. I don't know wht to do. When I got my machine it came with three books, the regular instruction book the get started maual and one that showed how to service the machine( timing and what not). I cannot find the service manual anywhere at home or online is there any way you can help me fix this? I work from home with that machine and I don't have the money right know to take it to a shop.. Thanks Jennifer

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Re: Simplicity Denim Star SW 210

Thread looping / bunching under fabric sewing.

Incorrect or NO top thread tension, Incorrect threading

Re thread top thread and thread machine with presser foot lifted allows thread to locate into the correct thread tension route.
Thread has not been pulled into thread tension unit- re thread, make sure thread is kept taut while threading.

Posted on Jan 03, 2008

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The upper thread becomes jammed inside the lower track of the shuttle. What can I do?

Try a brand new needle. Change thread. Make sure the needle is installed facing the correct direction and is pushed all the way up. The upper tension may be too loose.

Short of that, could be the machine's timing is off.


Dec 16, 2015 | Euro-Pro Shark by Euro Pro Sewing Machine

1 Answer

I'm trying to sew jeans hem and stitches are uneven on top and loops are showing underneath. Also the foot and needle will not sew over cross seams and thread keeps getting snarled up underneath. Tha

a lot of machines struggle with denim because it is such a heavy and dense textile. Many domestic machines won't stitch it at all due to this. Things you can try however:
  • Denim needle, this has a deeper groove at the back and is a heavy gauge needle, or use size 110 if you don't have denim needle.
  • Bash the side seams with a hammer in the area you will be stitching, to soften up the fibres.
  • Use a seam jumper, this is a piece of plastic to put in back of the presser foot as you approach a cross seam to help keep the presser foot pressure even across the fabric. Sometimes called a "thingy-a-jean" or similar.
  • Don't bother trying to use the heavy gauge yellow jean thread unless you put it through the bobbin and sew with the right side down. But even then, many machines can't handle having this heavy thread underneath and the regular 50 cotton on top, my Janome 1600 won't do it.
  • put your machine on slowest speed if you have a variable setting and turn the flywheel to assist it through the heavy side seams.
Personally, I never bother with the twice turned hem on denim if shortening, I just overlock the raw edge, turn up 1 cm and stitch around in a matching blue thread so it is seen as little as possible.

Feb 03, 2014 | Elna Sewing Machines

1 Answer

Free owers manual

your question is put under the sewing machine name of
simplicity denim star sw210, so that is the links I'm going to supply
for a manual,, but the manual is not free, I don't know where you can
get one for free

Aug 06, 2012 | Simplicity Denim Star SW210

1 Answer

Jc penny stitchs problem

First Clean the upper thread path with unwaxed dental floss or some sturdy thin fabric like light weight denim. Get in between those tension discs and floss away. Then make sure you are threading the machine properly with the lever in the UP position and have a proper sized needle. (not all needles are alike) Make sure the needles you are using are not damaged or bent.

Go ahead and clean in and around the bobbin area. Make sure your bobbin is going in the correct direction in the bobbin case. (yes it makes a difference)

Do a test seam. Note any improvements... If you have loops on bottom... tighten the top tension. Loops on top.. tighten the bobbin case tension (look for tiny screw)

Do a test seam. Keep working the tensions until you get a balance stitch. Be patient... this sometimes takes a bit of time to get it right. Work mostly with the top tension if you can.

To determine if it is a timing issue, take off foot, throat plate and bobbin plate so you can really see. Use the hand wheel to get the needle to the lowest position. Note where the shuttle hook is... ideally it should be just about to pass the needle scarf at this point. If it is more than just a few millimeters away, it's out of time.

I can't help with with a manual for a JCP machine not sure where once could be found... would need more than just "JC Penney sewing machine to find one anyway... need model number."

Aug 02, 2012 | Sewing Machines

2 Answers

I am sewing scout badges on a uniform and when I sew there is a bunch of needle thread bunched up on the bottom (the top looks fine). And the needle thread gets all caught up around the bobbin.

Clean out the bobbin area if there are any thread tangles there.

Refer to the maintenance section of the manual - see the configuration of the bobbin case and shuttle race? The bobbin case as an extending arm and the race a notch. When inserting the bobbin case into the shuttle, turn the handwheel so the needle is at it's highest position. Then lift the lever on the back of the bobbin case and insert the cast into the shuttle, arm pointing straight up toward the bed of the sewing machine.

Now thread the machine with the presser foot up - always - and see if the tangling stops.

When you forget to lift the presser foot before threading the machine, the tension control does not open to capture the thread. Then when you begin to sew, the top thread has no tension, and the bobbin thread, which does have tension, pulls the top thread to the bottom in messy loops.

Jun 25, 2011 | Kenmore Sewing Machines

1 Answer

After threading the machine, when I try to sew, the thread keeps tangling in the bobbin. I'll be most grateful if you can tell me what to do about this. Blessings, LaVerne

I have a feeling that you have the bobbin thread feeding the wrong way, flip your bobbin around and see if that makes a difference. Good luck to you, hope this works.

Sep 13, 2010 | Simplicity Denim Star SW210

1 Answer

Not completly threading or something

i was told this is a timing problem

Feb 26, 2010 | Simplicity Denim Star SW210

2 Answers

Machine is very loud and jumpy

Usually this problem occurs on machines with a front load bobbin case. If so, remove the bobbin case, the shuttle hook cover (two levers to the sides of the bobbin case area cover and shuttle hook (part the bobbin case goes on and it is ½ mooned shaped). Then clean and oil (with Q-tips and sewing machine oil NOT 3 n1 oil) the round outer area where the hook rides. No lint at all and squeaky clean. Then 3 drops of sewing machine oil in rounded groove where the shuttle hook rides. Then replace the pieces:
Replace hook:
Identify the the hook driver (still in machine), it is 1/2 moon shape. The hook is also 1/2 moon shape. If you lay the machine on its back,( it's easier). Set the hook 1/2 into the other 1/2 of the hook driver to make a circle. Then put the hook cover on (machine still on its back) with the tabs for the twist locks pointed to you. Needle gaurd on hook cover to the top of the machine. Snap the twist locks in place, replace the bobbin case and viola!

Mar 20, 2009 | Simplicity Denim Star SW210

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