When embroidery unit begins, the thread tightens and a lot of thread gathers in the bobbin area creating a "birds nest". Correct needle, thread, stabilizer, and hooping method is being used...machine locks and will not proceed with embroidery.
Usually this is a tension problem. On mechanical machines, you'd adjust the dial, or possibly even the bobbin tension. But on a computer machine, I don't know how you set the upper tension, sorry to say.
Sometimes it can help to unthread and rethread a machine, and I don't know why it sometimes works, but it's a simple thing to try.
But if the upper tension isn't set correctly for the work being done or if the tension mechanism, however that's handled on a computer machine, isn't working correctly, this is what happens. Bird's nest is a good way to describe it.
Sometimes lint built up in the bobbin case can cause this symptom too, but I'd assume you keep this area clean. One reason I haven't yet invested in a computer machine is because problems like this often don't have such simple solutions as on the mechanical machines.
SOURCE: problems
I had the same problem, but I then got a shorter bobbin. what is happening is that the bobbin is too tall and the tread is getting stuck in the bobbin. It helped me from trashing my machine.
SOURCE: I have a Brother PE 770. All was well, fairly new
here are some suggestions to try
it's may be the needle, it could be bent or blunt
it is possible that it could be the timing,,,, but first try changing the needle & try rethreading the
machine the top thread & bobbin also
make sure the bobbin is in the bobbin case correctly & that the bobbin case is correctly inserted into the machine correctly
check to see if there are any burrs on the needle plate
clean out from under the needle plate
also make sure the bobbin area is clean from lint or loose threads
SOURCE: I have a brother pe 770 and the bobbin will not
You need to sew the first stitch slowly. Lower the needle by hand and take up carefully. Pull the needle thread up and the bobbin thread should be caught in the formed loop and come with it. Pull them both to the back of the machine and sew.
SOURCE: Problem with my machine
l have a pe-200 brother machine and the needle won't go down and is making a noise can anyone help .l have checked belt and that's fine thanks
SOURCE: how do i fix the timing on my pe770
Timing this machine is not so easy but if U want to try... Remove the left bottom panel (one central screw), and look under. U will see by the rear the vertical gear making the hook turn. At the bottom of this gear, U will see a small allen. Slack this allen screw,
LEAVE A TENSION ON THE ALLEN SCREW: eitherway the hook will not follow the gear when U bring back the assembly to retight the allen screw.
U can now turn the hook on the gear, allowing to change the timming.
Send the needle completely down and when it come up, the point of the hook has to arrive at 2.5mm. on the top of the hole on the needle.
A TRICK : It might be easier to slighly change the position of the needle in the needle bar. Check the timing and try to correct it but lowering a little bit the needle before tightening the scew, or cut a little bit top part of the needle with a grinder.
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