Tangled thread on wrong side of fabric

Symptom / Cause

 

  • The thread becomes tangled on the lower side of the fabric.
    image

     

     

  • After starting sewing, a rattling noise is made and sewing cannot continue.
  • Looking under the fabric, there is tangled thread in the bobbin case.
    image

     

If the upper thread is incorrectly threaded, the upper thread passed through the fabric cannot be firmly pulled up and the upper thread becomes tangled in the bobbin case, causing a rattling noise.

 

 

Remedy / Check details

 

Remove the tangled thread, and correct the upper threading according to the following procedure.

 

  1. Turn off the sewing machine.

     

  2. Remove the tangled thread. If it cannot be removed, cut the thread with scissors.

     

    image

     

  3. If the threads remain in the bobbin case, remove the needle plate cover, and then remove the threads.
    For details, refer to How do I clean the machine? (Cleaning the race).

    If the bobbin was removed from the bobbin case,  install the bobbin in the bobbin case correctly.
    Refer to How do I install the bobbin wound with thread?

     

  4. Remove the upper thread from the machine.

     

  5. Turn on the sewing machine.

     

  6. Raise the presser foot using the presser foot lever.
    image

    (1) Presser foot lever

    If the presser foot is not raised, the sewing machine cannot be threaded correctly.

     

  7. Press image (needle position button) once or twice to raise the needle.


    image

     

  8. Pull up the spool pin as far as possible, and then put a spool of thread on this pin.
     

    If the spool of thread is in the wrong place, or is set incorrectly, the thread may tangle on the spool pin and cause the needle to break.

     

  9. Feed the upper thread as shown in the illustration below.

    image

    (1) Spool pin
    (2) Thread guide

    (3) Mark on the handwheel

     

  10. Make sure you guide the thread through the thread take-up lever from right to left.

    image

    (1) Thread take-up lever

  11. Put the thread behind the needle bar thread guide above the needle.

    The thread can easily be passed behind the needle bar thread guide by holding the thread in your left hand, then feeding the thread with your right hand.

    image

    (1) Needle bar thread guide

     

  12. Turn off the sewing machine.

     

  13. Lower the presser foot lever.
    image (1) Presser foot lever

     

  14. While lowering the needle threader lever, hook the thread onto the guide.
    image (1) Needle holder

    (2) Needle threader lever

    (3) Guide

     

  15. Fully lower the needle threader lever.

     

    image

     

    The end of the needle threader rotates toward you and the hook passes through the eye of the needle.

     

    If the needle is not raised to it's highest position, the needle threader cannot thread the needle.

    Turn handwheel counterclockwise until the needle is at its highest position.

    image (1) Mark on handwheel
     
  16. Catch the thread on the hook as shown below.
    image (1) Hook
    (2) Thread

     

  17. While lightly holding the thread, release the needle threader lever. The hook will pull the thread through the needle.

     

    image

     

  18. Pull the loop of the thread passed through the eye of the needle toward the rear of the machine.
    image (1)  Loop of thread

     

    Be careful not to pull on the thread with force or it may bend the needle.

     

  19. Raise the presser foot lever.
    image (1) Presser foot lever

     

  20. Pass the end of the thread through the presser foot, and then pull out about 5 cm (2 inches) of thread toward the rear of the machine.

    image (1) 5 cm (2 inches)

 

If your question was not answered, have you checked other FAQs?

Have you checked the manuals?

If you need further assistance, please contact Brother customer service:

Related Models

BC-2500, CS-6000/6000b/6000t, FS50

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