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Stitches on underside of material are too loose - I can pull the threads right out. Have tried adjusting the tension, but am not sure exactly how to adjust the tension for the bobbin.

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  • Singer Master
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The bobbin case screw- to the left loosens--to the right tightens

Posted on Sep 28, 2010

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Posted on Jan 02, 2017

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2 Answers

Adjusting top and bottom stitches...


the stitch length is set by the amount the foot pulls the material through
adjusting the needle thread tension is the main adjustment to ensure that both threads meet at the center of the materials being sewn

Mar 10, 2017 | Sewing Machines

2 Answers

The bottom thread is real loopy. I have adjusted the top tension and it helps a bit but still to loose


Remove all the thread from your machine. Install a brand new needle. Raise the presser foot and re-thread the upper thread, making sure you are following the correct threading sequence. Confirm that the bobbin thread is threaded through the bobbincase properly. Now, perform another test stitch. Is the bobbin thread still looping?

If you have already tightened the upper thread tension and the bobbin tension is still too loose, then you may need to tighten the bobbin tension. First, mark with a permanent marker where the slash of the screw head meets the bobbin case. This will mark where the screw was originally set before you begin making adjustments and allows you to return the screw to that position should you need to.

Set the upper tension to the halfway point between the high & low number. This is what would normally be the standard.

Then gently turn the bobbin tension screw to the right 1/8th of a turn at a time. Then test. Keep adjusting until the bobbin thread tension is correct. The tensions are correct when the upper thread and the bobbin thread meet in the middle of the fabric.

...

Nov 15, 2015 | Sewing Machines

3 Answers

Fy5318 breaking thread on multiple layers of material, how to adjust?


either the thread is old, or the tension is to tight.
or there is a bind some where in the line layout.
you mite goto there website and look under FAQ section for other help
or
www.youtube.com/sewing/canvas/material/
www.youtube.com/fy5318/multiple/layers/of/material/setup/

www.ask.com/sewing/multiple/layers/of/material/and/setups/

Sep 17, 2015 | Yamata Fy5318 Mechanical Sewing Machine

1 Answer

Sewing machine not working in reverse


try a new needle
try a different thread top and bobbin
try adjusting the top thread tension one number or letter at a time
higher sewing on a scrap piece of paper till the stitches look
normal
make sure the top thread does not come off the thread take up lever

Jan 11, 2013 | Sewing Machines

1 Answer

The bottom stitching looks like a line and not stitches the top stitching is fine


try adjusting the top thread tension and see if that helps
also try changing the thread.
also change the needle--make sure it's the right needle for the fabric
being sewed.

Dec 13, 2012 | Juki DDL8300N Sewing Machine

1 Answer

The top stitch is perfect but underneath the material there are many loops. I am assuming this is from the bobbin. How do I correct this?


no, more likely your top tension is too loose causing the loops on the underside of your fabric, loops on top would be bobbin too loose. raise presser foot and rethread top thdead pulling thread into tension fully. set top tension dial to 5 and test sew. if still looping underneath try tightening top tension by turning dial up to 6. but usually top tension should only need minor adjustment tweeks. you can test top tension by lowering pressure foot to engage tension and holding thread just above needle thread guide, pulling thread downwards . there should be resistence on it to your pull. if you cant feel any then tension device may be faulty, and require service.

Jun 25, 2011 | Sewing Machines

1 Answer

The thread underneath when sewing is too loosed


Usually thread too loose on the bottom is caused by the upper tension being too loose. The top and bottom tensions work together with the top thread making the underside of the stitch seem too taunt or too loose and the bobbin thread causing the top side of the stitch to be loopy or too tight. Select a large zig zag stick and sew a couple of inches. Then examine the stitch. It should look identical on both sides. Look to see which side is drawn too tight, the zig zag being smaller on that side with threads from the bottom threads pulled through. Then adjust the two tensions so that they make a uniform, identical stitch.

Also, when the bobbin tension is right you can hold the bobbin dangling by the thread and it won't spool out to the floor but will let loose a bit with a slight flick of the wrist. Too loose it will just spool out. Too tight and it won't drop at all. When you get that set right then do the above zig zag test to see where the top tension should be set.

Mar 02, 2011 | Sewing Machines

1 Answer

My bobbin stitch is loose. I have tried adjusting tension and have changed the needle.


A. To correct loose stitches, try the following: (1) Balance the thread tension. If the stitches are loose on top of the fabric, decrease the tension to the next lower number. If they are loose on the underside set the tension to the next higher number. (2) Make sure the needle/upper thread follows the threading path. (3) Check to see that the bobbin case is threaded properly. (4) Use a different size needle. For fine fabrics, use a smaller needle (size 9, 11); medium-weight fabrics require a size 14 or 16. And use a size 18 or "Denim" needle for heavy corduroy or denim.

Sep 20, 2010 | Singer Curvy 8770 Electronic Sewing...

1 Answer

I have a Singer 31-19. The stitch on top looks good.The bottom stitch seems to be pulled into the material but is loose. Please help


Tighten the screw on the spring that the thread feeds through on the bobbin holder.

Just get a couple of bits of cloth and adjust the screw 1 8th of a turn at a time until the stitch is right.

Might pay to adjust adjust top thread tension to half way.

Jul 11, 2009 | Sewing Machines

1 Answer

Bunching thread underneath


When your thread is bunching at the bottom, your top tension is not tight enough, or you did not thread the machine correctly. Make sure the thread goes through the tension blades. Check your manual how to do it properly. you can check if there is any tension by pulling on the thread before threading through the eye of the the needle, and with the presser foot down. By pulling with the left hand and adjusting the tension with the right hand you should be able to feel a difference. Normal setting is between 3 and 5

Oct 12, 2007 | Singer Featherweight II 117

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