20 Most Recent Brother LS-2125 Mechanical Sewing Machine - Page 5 Questions & Answers

When sewing thread combines

From your description it appears that you have tried tension settings on the upper tension control adjustment knob without success.
Check that the bobin tension is adjusted correctly by taking out the bobin complete with the spool.
Pull the cotton thread and it should be a smooth light pressure if the tension is correct. If it is tight to pull or pulls freely then adjust the tension screw which is found on the outside of the bobbin. The screw is very small and requires a minature size screwdriver. The adjustment will only be a slight turn of the screw one way or the other to obtain the correct tension(depending if it was loose or tight).
Once this is set reinstall the bobin and tread up the machine, hopefully with the upper tension set at approx."2" the machine will sew correctly.

here are 2 links check them both outhttp://www.brother-usa.com/VirData/Content/en-US/HAD/Consumer/QuickSetupGuide/QSG_LS_1217_1520_1717_2125_VX_1435_EN_364.PDFhttp://www.brother-usa.com/VirData/Content/en-US/HAD/Consumer/UsersManual/UM_LS_2125_EN_272.PDF

it's possible that there is a short in the wiring and it would be a good idea to have the machine checked.

cut a potato in half and press the flat spot into the remains of the bulb, and turn carefully

how can i find out what my model # is on my used sewing machine if there is nothing on the machine. i need to find a manual but have no numbers to identify the machine

Do you mean that the thread is not pulling up? I don't understand, if you have it threaded right and the thread can be pulled when it is in the casing how can it not move? Or are you trying to wind a bobbin? Please restate your question, no one can help unless you are clear.

Have you tried to change needle?

Loops appear on the surface (top side) of the fabric?Reduce the tension by turning the upper tension control dial to a lower number. If the loops still appear on the surface of the fabric after you adjust the upper tension, the bobbin thread may be too loose. In this case, turn the screw clockwise, being careful not to over-tighten the screw, approximately 30-45 degrees to increase bobbin tension. After you adjust the bobbin thread, adjust the upper thread to match the bobbin thread. Make sure you reset before your next project.

If your thread loops on the top of your project, the the problem lies with your bobbin, Just take it out, make sure the thread is thru the tensioner and try again. That should fix it.

try these links for partshttp://www.sewingpartsonline.com/brother-ls2125i-sewing-machine-parts.aspxhttp://www.sewingpartsonline.com/brother-ls2125-sewing-machine-parts.aspx

take bobbin out...look in case in machine and pull any loose threads...you have to sew very slowly so this does not happen...the books don't tell you that!!! Make sure bobbin itself is neatly wrapped and thread is out where it is supposed to be once inside case.

Just check in this link Brother LS-2125 Sewing Machine or click over image...



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Jose.