1. First, choose the needles of the sewing machine according to the thickness of the fabric to be sewn (the number of needles is 1, 2, 3). Generally choose No.2 or No.3 to use. Then install the needle, loosen the needle mounting screw, put the needle vertically into the needle slot from below, and then tighten the screw. Be careful not to put the needle upside down.
2. According to the stitch size of the clothes you need to sew, you need to adjust the position first. Generally choose between 7 and 8. Loosen the position screw first, and then adjust the position up and down. After adjustment, tighten the screws.
3. Prepare the bobbin thread, that is, thread the bobbin thread on the bobbin of the machine with the lock core, and then press the button around the bobbin thread. Then loosen the pulley and the nose part and use the pedal to wind the thread (just like a sewing machine). Don't choose to thread at this time.
4. Wrap the bottom thread, take out the lock cylinder sleeve with lock cylinder under the needle of the sewing machine board with your left hand, attach the wrapped lock cylinder thread, and pull the thread end out of the lock hole.
5. Put the lock sleeve with lock core back to its original position, and cover the pressure plate after installation.
6. Then install the thread, pull the thread head, and thread carefully step by step according to the logo of the machine.
7. After wearing it, check it carefully to see if it is correct. Pass the line through the pinhole after it is correct.
8. Pull the needle with your left hand, turn the right wheel with your right hand, and turn the needle to the bottom before lifting it. At this point, the bottom line is pulled out.
9. Turn online and offline in reverse. Then put the cloth to be sewn in the middle of the pressure plate, remove the presser foot and press the cloth.
10. At this time, everything is ready, start turning the handwheel, and at the same time step on the machine pedal, and the cloth will go back. Just grasp the direction in which the cloth is going.