1. Turn the handwheel counterclockwise to stop the needle at the highest position. (If the needle position is already in the upper position, there is no need to turn it.)
2. Loosen the needle clamp screw with the right hand (turn the screw counterclockwise).
3. Remove the original needle with your left hand. (Tips: You can put a small piece of paper or cloth above the needle hole of the needle plate first, so that if the needle is not held, it will not fall into the needle hole of the needle plate.)
4. Put the shank plane of the new needle back, insert it into the needle groove of the needle bar, and push it up to the end
