Question about Brother SE-270D Computerized Sewing Machine

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Tension problem Bottom thread is loopy and sloppy

I had to replace my bobbin case and now when I sew the tension on the bottom thread is not working. I have adjusted the thread tension and nothing seems to work.
Please help!
Thanks in advance,
Linda

Posted by koolkatz260 on

  • Libsaunt Aug 10, 2008

    I have the same problem - bottom thread is loose and sloppy. I have followed all troubleshooting suggestions - re-installed both upper and lower thread, replaced needle, cleaned shuttle area, adjusted tension, etc. - nothing helps.

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Anonymous

SALUDOS, MI MAQUINA HACE ESACTAMENTE LO MISMO UN DIA DERREPENTE DEJO DE BORDAR Y TIRA TODO EL HILO, LO HACE BOLAS POR LA PARTE DE ABAJO, Y DESCUBRI QUE SE ROMPIO UNA LAMINITA QUE LLEVA FRENTE A LA LANZADERA DONDE SE COLOCA LA BOBINA.
TAL LAMINITA SE LLAMA RESORTE PERO NO TIENE NUMERO NO LA HE PODIDO ENCONTRAR, DICHO RESORTE VA INSTALADO AL LADO DERECHO EN EL MISMO LUGAR DONDE ESTA INSTALADO EL LASER. AGRADECERIA ME DIERAN EL NUMERO PARA PODERLA COMPRAR. MIL GRACIAS.

Posted on Aug 15, 2008

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You should do a Tension assembly test.
Tension assembly test. To do this test. Pull the thread through the tension assembly and test it to make sure the tension is working correctly.
(To do this test, adjust your tension setting to normal or medium or 5 or something in the middle. Raise the presser foot and pull the thread through the tension. It should pull easily!! Lower the presser foot and pull the thread. It should pull noticeably harder.)
If it doesn’t work this way then you probably have a piece of thread or lint stuck inside the tension discs. To remove it, turn the tension to 0 zero and raise the presser foot.Using a small screwdriver, open the space between the discs and spray with canned or compressed air. The stuff should come out. Do the tension test again to make sure you got everything and then try sewing again.
sewman7

Posted on Aug 11, 2008

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1 Answer

Why is my bottom thread all loopy


Ok, thread is loopy because bottom tension is way too loose. Tighten the bottom tension. If this doesn't work then
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Make sure you are using a brand-new needle.
Always RAISE the presser foot and then thread the upper thread making sure that every guide and the correct path is followed.

Set the upper tension to the midway point between high & low number and re-test the stitching. Re-adjust as needed. The tension is correct when both upper and bobbin threads meet in the middle of the fabric.

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You didn't give the brand, but if it's any of the older, non computerized machines, your problem is most likley in the tensions.
Loopies (tangles or nests of thread) on the bottom means upper tension too loose (or bobbin too tight).
Let's do the bobbin first...once it is set...99.9% of loopies on the underside are a problem with upper tension.
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