Brother Disney PE-400D Computerized Sewing Machine "bobbin advancing thread" Questions

...bobbin thread correctly. It seems that the bobbin is 'jumping' and the bobbin thread is tangled. I've cleaned, replaced the bobbin, replaced the needle, and re-threaded the top but nothing works. It ...

...bobbin thread tension issue. Be sure to thread per machine instructions. See following Singer video... testing top thread tension. https://www.youtube.com/watch?v=O7N4XaIV6ms Test tension of top ...

...bobbin thread color if possible. If it's bobbin thread then it's escaping the bobbin tension spring. If top thread then likely tension too low or uneven feed. This machine has a horizontal spool pin. ...

bobbin thread tangling under fabric while stitching. Seems like it's not releasing from the bobbin. Check bottom thread (bobbin) tension. Pinch bottom thread (bobbin) between finger and thumb and make

...bobbin thread tension. Make a slow steady pull of bobbin thread. It should advance smoothly from bobbin with tension similar to top thread with tension =4. If bobbin tension is similar to top thread ...

...bobbin thread tension. Make a slow steady pull of bobbin thread. It should advance smoothly from bobbin with tension similar to top thread with tension =4. If bobbin tension is similar to top thread ...

...manual. You can do a similar test of bobbin thread tension. Make a slow steady pull of bobbin thread. It should advance smoothly from bobbin with tension similar to top thread with tension =4. ...

...On what setting must the bobbin be. Thanks in advance Make sure bobbin thread is behind tension spring of bobbin case. Your sure it's the bobbin thread?... try different color top thread if

...bobbin thread unspooling from wrong direction the bobbin thread will eventually escape from the bobbin tension spring and will loop on top side of fabric. The bobbin thread must unwind CCW. Not sure ...