Innov-is 4750D

FAQs & Troubleshooting

FAQs & Troubleshooting
  • Date: 05/14/2015
  • ID: faqh00000488_000

How do I manually thread my machine?

  • Be sure to thread the machine properly. Incorrect threading can cause the thread to tangle and break the needle, leading to injury.
  • When using accessories not included with this machine, attach the accessory to the machine after threading the machine.
  • Never use the thread of No. 20 or lower.
  • Before manually threading the machine, be sure Presser foot/Needle exchange key to press in the LCD, otherwise injuries may occur if the "Start/Stop" button or any other button is pressed and the machine starts sewing.
 

Automatic threading cannot be used when using the wing needle, the twin needle, or special thread with a thickness of 130/20 or thicker. In these cases, thread the needle as described below.
Thread the needle as described.

 

  1. Turn the main power to ON.
    Turn the main power to ON.
     
  2. Turn the handwheel so that the line on the machine is aligned with the line on the handwheel.
    Line on handwheel 1 Line on handwheel

    If the line on the machine is not aligned with the line on the handwheel, the sewing machine cannot be threaded. Check that the line on the handwheel is facing up as shown in the illustration above.

     
  3. Press Presser foot/Needle exchange key at the lower right of the LCD screen.
    The entire screen becomes white, and all keys and operation buttons are locked.
     
  4. Raise the presser foot lever.
    Raise the presser foot lever.

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

     
  5. Pivot the spool pin so that it angles upward.
    Set the thread spool on the spool pin so that the thread unwinds from the front of the spool.
    Set the thread spool 1 Spool pin

    2 Spool cap

    3 Thread spool

     

  6. Push the spool cap onto the spool pin as far as possible, then return the spool pin to its original position.
    • If the thread spool and/or spool cap are set incorrectly, the thread may tangle on the spool pin and cause the needle to break.
    • Use the spool cap (large, medium, or small) that is closest in size to the thread spool. If a spool cap smaller than the thread spool is used, the thread may become caught in the slit on the end of the spool and cause the needle to break.
    • When sewing with fine, cross-wound thread, use the small spool cap, and leave a small space between the cap and the thread spool.
      When sewing with fine, cross-wound thread 1 Spool cap (small)

      2 Thread spool (cross-wound thread)

      3 Space
     
  7. Holding the thread with your hands, slide the thread into the grooves on the thread guide plate.
    Slide the thread into the grooves on the thread guide plate. 1 Thread guide plate

     

  8. While holding the thread in your right hand, use your left hand to pull the thread toward the threading path cover, then pass it along the thread path as shown in the illustration.
    Pass the thread through the thread guide in the direction indicated. 1 Threading path cover

     

  9. Be sure to pass the thread along the right side of the thread path guide.
    Pull the thread under the thread path guide.
    Thread path guide 1 Thread path guide

     

  10. Pull the thread up along the left side of the thread path guide to the top left corner of the threading path cover.
    Pull the thread up along the left side of the thread path guide. 1 Top left corner

    2 Threading path cover

     

  11. Pull the thread down to the needle bar along the left side of the thread path guide.
    Make sure the thread is hooked at the top corner and positioned behind the transparent front cover.
    Pull the thread down to the needle bar. 1 Thread take-up lever check window

    2 Transparent front cover

     

    Look through the thread take-up lever check window. 1 Take-up lever

    2 Thread
    Look through the thread take-up lever check window and check that the thread is correctly fed through the take-up lever, turning the handwheel toward you.

     

     
  12. Lower the presser foot lever.

     
  13. Holding the thread with both hands, pass the thread through both the upper and lower needle bar thread guides.
    Pass the thread through both the upper and lower needle bar thread guides. 1 Needle bar thread guide (upper)

    2 Needle bar thread guide (lower)

     

  14. Pass the thread through the eye of the needle from front to back.

     
  15. Pass the thread through the presser foot, and then pull out about 100-150 mm (approx. 4-6 inches) of thread toward the back of the machine.
    Pass the thread through the presser foot. 1 10 cm-15 cm (approx. 4-6 inches)

     

     

    Press Presser foot/Needle exchange key to unlock all keys and buttons.
 

Related FAQs

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Have you checked the manuals?

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

Related Models

Innov-is 4000D/4000, Innov-is 4500D, Innov-is 4750D

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