Symptom / Cause

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

   

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

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.
   

    

3. If the threads remain in the bobbin case, remove the needle plate cover, and then remove the threads.

   If the bobbin was removed from the bobbin case,  install the bobbin in the bobbin case correctly.
   Refer to "How do I set the bobbin?".

    

4. Remove the upper thread from the machine.

    

5. Turn on the sewing machine.

    

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

   (1) Presser foot lever

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

    

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

   The needle is correctly raised when the mark on the handwheel is at the top, as shown below. Check the handwheel and, if this mark is not at this position, press  (Needle position button) until it is.

   (1) Mark on handwheel

    

8. While holding the thread lightly with your right hand, pull the thread with your left hand, and then pass the thread behind the thread guide cover and to the front.

    

   (1)Thread guide cover

    

9. Pass the thread under the thread guide plate, and then pull it up.

    

   (1)  Thread guide plate

    

10. While using your right hand to lightly hold the thread passed under the thread guide plate, pass the thread through the thread path in the order shown below.

     

    (1)Shutter

11. Press .

     

12. Slide the thread behind the needle bar thread guide.

     

    (1) Needle bar thread guide

     

13. Pull the end of the thread, which has been passed through the needle bar thread guide, to the left, then pass the thread through the notch of the threader thread guide(A), and then firmly pull the thread from the front and insert it into the slit of the threader thread guide disk marked “7” all the way(B).

    (1) Notch of the threader thread guide (2) Threader thread guide disk

     

14. Cut the thread with the cutter on the left side of the machine.

    (1) Cutter

    • If the thread is pulled through and cannot be cut correctly, lower the presser foot lever so that the thread is held in place before cutting the thread. If this operation is performed, skip step 15.
    • When using thread that quickly winds off the spool, such as metallic thread, it may be difficult to thread the needle if the thread is cut. Therefore, instead of using the thread cutter, pull out about 80 mm (approx. 3 inches) of thread after passing it through the threader thread guide disks (marked “7”).

    (1) 80mm (approx. 3 inches) or more

     

15. Lower the presser foot lever to lower the presser foot.

    (1) Presser foot lever

     

16. Lower the needle threader lever on the left side of the machine until it clicks, and then slowly return the lever to its original position.

    (1) Hook (2) Needle threader lever

    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.

    (1) Mark on handwheel

     
17. Carefully pull the end of thread that was passed through the eye of the needle.
    
    

     

    If the needle was not completely threaded, but a loop in the thread was formed in the eye of the needle, carefully pull the loop through the eye of the needle to pull out the end of the thread.

    (1) Loop of the thread

    When pulling out the thread, do not pull it with extreme force, otherwise the needle may break or bend.

     

18. Raise the presser foot lever, pass the end of the thread through and under the presser foot, and then pull out about 5 cm (approx. 2 inches) of thread toward the rear of the machine.

    (1) 5 cm (approx. 2 inches)

     

19. Press  to unlock all keys and buttons.