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Question:

Three-pin five-line stretch sewing machine needle and ordinary sewing machine needle What is the difference?

Three-pin five-line stretch sewing machine needle and ordinary sewing machine needle What is the difference?

Answer:

If the distance between the curved needle tip and the center of the needle can be maintained, then the synchronized relationship between the looper and the needle is correct; conversely, if the distance between the needle tip and the needle center is not maintained,
Then adjust the need to remove the needle plate, carefully adjust the needle and the needle between the synchronization until the correct position
The synchronization between the pins is not correct.
Should be bent on the right side of the curved needle, and then check the curved needle tip and the needle center is 3.5mm-5mm distance.

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