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Okay, so I’ve just been given a Brother GS2500 sewing machine, and I’m sure I’ve threaded it all correctly (checked the manual and all) and whenever I sew, no matter what speed, what setting and no matter what the tension is on, the thread underneath bubbles and is super loose. It’s basically a bird’s nest of thread underneath! At first I thought it must just be the tension setting being too low, but even if I crank it right up to the highest setting (I’ve tried all of them!) it still happens! I have something super important to sew, and I was given this machine because mine is away for servicing and I have no idea what’s up with it! The fabric I need to sew is super delicate too, so I really don’t want to be unpicking every 5 seconds and making unnecessary holes in the fabric because it would fray so fast. Any help ASAP would be greatly appreciated!


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  • 985f0154fdefdf284531d76b36fbffee7a42548e_large

    Jun 10, 2013, 07.03 PMby katexxxxxx

    When was the last time you cleaned between the tension disks on this machine? If resetting the tension has had no effect, then it probably needs a good clean. I use an microfiber lens cloth to ‘floss’ between the disks. It’s also worth looking to see if there is any thread caught round the tension spindle, as this would not come out with flossing.

  • 20596winter_20fairy_large

    Jun 10, 2013, 08.21 PMby sewingfan1

    Plus, in addition to kate’s comments, i found the reason with mine once was the tension on the bobbin case. I read somewhere that if you insert the bobbin, and hold the end of the thread it should hold the weight of the bobbin case and the thread should only come out more if you kind of jangle the thread a bit (like you’re playing with a yo yo). When i held the thread on mine, the tension on the bobbin case was so loose it just dropped straight to the floor!

    1 Reply
    • 985f0154fdefdf284531d76b36fbffee7a42548e_large

      Jun 10, 2013, 09.43 PMby katexxxxxx

      Doesn’t work with a drop-in bobbin. ;)

  • F8c401a3f25120c4a2b948efcace1d9a54fa3d91_large

    Jun 11, 2013, 08.48 AMby soniasews

    I had a student with this problem and it was the way the machine was winding the bobbin, too loose. She bought a bobbin winder and that fixed her problem.

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