PR670E / PR670EC

FAQs & Troubleshooting

FAQs & Troubleshooting

How do I thread the machine? (Threading the upper thread)

 

>Upper threading

>Threading the needle

>Moving and threading a selected needle bar

 

 

Upper threading

Use machine embroidery thread to thread the needle bars in order, starting with needle bar 1.

 

When threading the upper thread, carefully follow the instructions. If the upper threading is not performing correctly, the thread may break or become tangled, causing the needle to bend or break.

It is recommended that rayon or polyester machine embroidery thread be used (120 den/2, 135 dtex/2, 40 weight ).

The path that the embroidery machine should be threaded is indicated by a line on the machine. Be sure to thread the machine as indicated.

 

 

img01

 

 

 

 

 

(1) Placing a spool on the spool pin and passing the thread through the thread guide

 

img02
The numbers indicate the thread path for each of the numbered needle bars.
Be very careful to correctly thread the needle bars.

 

 

 

 

 

  1. Place on spool pin 1 the spool of thread with the color specified for needle bar 1.

     

    img03

     

     

    • Make sure that the spool stand is opened in the shape of a V.
    • When using small spools of thread, be sure to place the included spool mat on the spool pin before placing the spool on the pin.
    • Place the thread in the center of the spool stand so that the thread feeds off of the spool correctly and does not get tangled around the spool pin directly under the thread spool.
      img04
    • Use spool cap on all spools of thread shorter than the height of the spool pin.
      img05 (1) Spool mat
      (2) Small spool
      (3) Spool cap

    • When using a flanged thread spool, place the spool on the spool pin, and then place the included spool cap onto the spool pin, over the spool.
       

 

 

 

 

 

 
  1. Pass the thread through the number 1 hole in the thread guide just above the spool, and then pass the thread through the number 1 hole in the thread guide toward the front of the machine.

    img06

    (1) Number 1 hole in the thread guide above the spool

    (2) Number 1 hole in the thread guide toward the front of the machine

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(2) Pass the thread through the thread guide and the thread tension disc

 

img07
The numbers indicate the thread path for each of the numbered needle bars.
Be very careful to correctly thread the needle bars.

 

 

 

 

 

 

  1. Pass the thread through the hole in the number 1 upper thread guide and pull the thread toward you.
    img08 (1) Hole in upper thread guide

     

     

     

     

     

     

  2. Hold the thread with both hands, and then pass it under the guide plate from the right.
    img09 (1) Upper thread guide plate

     

     

     

     

     

  3. Wind the thread clockwise once around the number 1 thread tension disc.
    img10

     

    (1) Thread tension disc

    (2) Pass thread in a clockwise direction at this location on the tension disks.

    • All thread tension discs are threaded in clockwise direction.
    • Make sure that the thread is securely caught in the thread tension disc and passed correct thread guide pins.
      img11

      (1) Pass around here.

     

     

     

     

  4. Lead the thread along the thread path and around the correct thread guide pins as indicated on the machine.



     
  5. Slip the thread under the number 1 middle thread guide plate from the right.
    img12

    (1) Middle thread guide

    (2) Thread guide pin

    The path from the upper thread guide around the thread tension disc and to the middle thread guide (steps 5 through 6) differs depending on the spool number. Passing the thread from the left to the right through the thread guide pins is designed to prevent the thread from becoming tangled. Be sure to follow the thread path indicated on the machine.

     
    img13

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(3) Pass the thread through the thread take-up lever and the needle bar thread guide

 

img14
The numbers indicate the thread path for each of the numbered needle bars.
Be very careful to correctly thread the needle bars.
 

 

 

 

 

 

  1. Pass the thread along the number 1 slot to pass it through the number 1 take-up lever hole from right to left.
    img15

    (1) Thread take-up lever






     
  2. Pass the thread down through the slot to the lower thread guide, and then through the hole in the number 1 lower thread guide.
    img16

    (1) Hole in lower thread guide






     
  3. Use the included threader to pass the thread into the number 1 needle bar thread guide.
    img17

    (1) Needle bar thread guide

    (2) Needle changing tool (Threader)

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Threading the needle

Use the automatic needle-threading mechanism to thread the needle.

 

 

  1. Press the automatic needle-threading button.

     

    img18

    >> The hook on the automatic needle-threading mechanism passes through the eye of the needle.
    • If the needle is not fully inserted, the hook of the automatic needle-threading mechanism will not pass through the eye of the needle during automatic needle threading, and the hook may bend or the needle cannot be threaded.
    • If the hook of the automatic needle-threading mechanism is bent or damaged, contact your authorized Brother dealer.
    • While the hook of the automatic needle-threading mechanism is passed through the eye of the needle, do not rotate the handwheel, otherwise the automatic needlethreading mechanism may be damaged.
    • To avoid damage, the automatic needle-threading mechanism may return to the back position when you turn the handwheel.
    • The automatic needle-threading mechanism can thread one needle at the sewing position. When this mechanism is used, be sure that the needle bar that you want to thread is positioned as the sewing position, otherwise the automatic needle-threading mechanism cannot be used at the particular needle. If the needle bar is not at the sewing position, move it there.




     
  2. Pull out about 150 mm (6 inches) of thread. Allow thread to relax and eliminate any stress on the thread. Then, as shown in the illustration, pass the thread under the fork of the automatic needle-threading mechanism from the right, and then catch the thread with the hook that passes through the eye of the needle.
    img19

    (1) Hook

    (2) Fork

    When catching the thread with the hook, be careful that the thread does not become loose.



     

     

  3. Pass the thread under the guide on the presser foot.
    img20

    (1) Guide on presser foot

    (2) Notch in guide on presser foot

    >> Make sure that the thread securely passes through the notch in the guide on the presser foot.



     

     

  4. Securely pass the thread through the groove in the thread cutter, and then lightly pull the thread to cut it.
    img21 (1) Groove in thread cutter
    • If the thread is not correctly passed through the groove in the thread cutter, the message “Wiper error” appears and the needle cannot be threaded. Be sure to securely pass the thread through the groove.
    • If enough thread is not pulled out, the thread cannot be pulled through the thread cutter.




     
  5. Press the automatic needle-threading button.

    img22


    >>  The threader moves back away from the needle. The thread is pulled through the needle eye.
           The wiper comes out and catches the thread between the needle and the threader.
           The threader goes back to the original home position.

    This completes the upper threading for needle bar 1.
    Thread the remaining needle bars in the same way.
     

    If the needle bar to be threaded is not moved to the embroidering position, the needle cannot be threaded with the automatic needle-threading mechanism. For the remaining needle bars, perform the operation described in the needle bar to the embroidering position before trying to thread the needle.

    If the thread is not taut, it may come out of the thread tension disc. After upper threading is finished, check again to make sure that the thread is correctly passed into the thread tension disc.

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Moving and threading a selected needle bar


Moving and threading a selected needle bar to the embroidering position

You can move and thread a selected needle bar to the embroidering position at any time.

 

 

  1. Touch img23 .
     

    img24

    >> The needle bar move screen appears.

     

     

     

     

     

  2. Touch the key for the needle bar that you wish to move or thread.
     

    img25

    >> The selected needle bar moves to the position of embroidery.

     

     

     

     

     

     

  3. Press the automatic needle-threading button while the needle bar move screen appears.
     

    img26






     
  4. Touch "OK" to return to the previous screen.

    In the embroidering screen, a blue frame appears around the thread information box of the selected needle bar.
    img27
    (1) This needle bar is selected. (The blue frame appears around the thread information.)

 

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Moving the needle bar to be threaded to the position of embroidery

You can move the needle bar in the embroidering screen.

 

 

  1. Touch the key for the needle bar that you wish to thread.
    img28
    >> The selected needle bar moves to the embroidering position.
     

    When changing one of the upper thread colors, it is easy to re-thread by cutting the thread currently being used between the spool and the thread guide above the spool. Place the new spool on the spool pin and tie the end of the new thread to the end of the previous thread. Then pull the thread through to the needle.

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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

PR670E / PR670EC

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