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Threading a national mechine all I find is for older mechine this oneis an early 2009 or abouts

Top thread keeps bunching on underside

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See if this link helps you out.... How to Thread Sewing Machine

Posted on Dec 06, 2016


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1 Answer

Thread bunching up cannot see how to use tension when threading

Your issue arises first from threading the machine correctly. Once that is done, then the tension can be adjusted.

Remove the top thread from the machine.
Be sure to start with a brand new needle.
ALWAYS RAISE the presser foot and rethread from the beginning.
Set the tension to the midway point and test your machine.

If the top thread is showing on the underside of the fabric, you need to tighten the top tension.
If the bobbin thread is showing on the top of the fabric, you need to loosen the top thread.
Tension is a tug of war between the two threads. It is correct when the two threads meet in the middle of the fabric.

Understanding Thread Tension Threads


Nov 17, 2017 | Sewing Machines

1 Answer

My sewing machine is lemeiux 7000 . My thread is breaking and Seam from the lower side is very loose .what could be the reason

It is a tension problem, check your needle to make sure it does not have a burr this will cause thread to break.
if the stitching is loose on the underside you have to figure out if it is the top thread going to the underside and making loops of thread, your tension is too loose so tighten ever so slightly and sew a few stitches till it is even, if it is the bobbin thread that is bunching up try re threading it and make sure you are using the same thread on both bobbin and top, some will not work together. hope this helps good luck

Jun 13, 2017 | Sewing Machines

1 Answer

National sewing mechine model#290

check tension, also look for pieces of lint, dirt, dust in area where bobbin is.

Dec 06, 2016 | Sewing Machines

1 Answer

My needle won't grab the bobbin thread but if I put some fabric in and start to sew the bobbin thread comes through. However, the bottom thread is all bunched up and causes the machine to jam.

the looping on the underside sounds like a needle thread tension problem. 1st off check top (needle) threading then turn machine by hand to pick up bobbin thread

Jan 02, 2014 | New Home HF-106

1 Answer

Stitches too loose

Upper, it is your bobbin threading, lower bunching of thread it your top threading . Try this test, with the presser foot up, pull your top thread, with the presser foot down, pull thread again, it should barely move.
It is always the opposite of what you think, so rethread and do the test; Sometimes this little test will seat the thread in the tension discs better. I keep my tension on about 3 for most sewing, my other machines I use auto. I hope this helps you.

Nov 17, 2010 | Singer 2662

1 Answer

Thread wrapping around take up lever

I think that you should check the manual again because it sounds like you have missed a step in your threading. What you are describing does not seem possible if it threaded right

Jul 23, 2010 | Brother XL-3500

1 Answer

Cotton keeps getting knotted from the bobbin

upper tension is wrong or upper threading is wrong (problem is always on the other side of the bunched thread)

Jul 07, 2009 | Janome 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

2 Answers

Thread bunching

I discovered that when the thread is knotting up on the underside of the material that it is usually the threading on top and has nothing to do with the bobbin.

Jun 29, 2007 | Brother LS-1217 Mechanical Sewing Machine

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