Step 1: press P- to display P- numberS- press the plus and minus sign to adjust to P-0 1- press s-the speed will appear-press the plus and minus sign to adjust to the required speed-press s to confirm-press P- to end.

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Step 2: Press the P key to display P 1-2000, and you can adjust the speed.

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Step 3: Because the control panel of computer sewing machine mainly adjusts the size and speed of needle code, the specific adjustment method depends on the brand of sewing machine. The computer sewing machine can be adjusted on the display screen with a circle on it. This is speed. You need to press it, and then press "-".

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Step 4: First, we need to check whether the needle is installed correctly. In order to avoid making mistakes, we'd better change a new needle. If it still doesn't work, we can open the needle board and turn the needle to the lowest position so that the tip of the shuttle is about 8mm away from the needle. If not, raise the needle about 2.3mm to see if there is a gap of 0. 1 between the hook tip and the needle, and the centers coincide.

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Step 5: If the needle is slightly bent, it will jump. Try changing the needle. When loading the needle, you'd better move down slowly, or it will break. For the needle used, it should be decided according to the thickness of the sewn thing, such as thick needle and fine needle.

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The difference between computer sewing machine and ordinary sewing machine;

Ordinary sewing machines need manual operation in the whole sewing process, while computer sewing machines only need to input patterns, put in materials, put down the press frame and step on the pedal.

Moreover, the computer sewing machine can complete complex patterns with a maximum speed of 2500 rpm and a needle pitch of 0. 1mm- 12.7mm, which is very convenient to use. Pneumatic external press frame is used to press the sewn material without manual feeding. The internal pressure frame can move within the range of 4mm- 10mm, and the maximum thickness and height can be sewn.

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Functions of computer sewing machine:

Computer sewing machine can realize automatic operation such as automatic stop, automatic thread cutting, automatic thread loosening, automatic thread dialing and automatic foot lifting. The operation is very simple, and it can sew a variety of materials, such as uppers, trademarks, handbags, bags, jeans, sports equipment, zippers, watchbands, gifts, travel goods, fastener tapes, belts, plastics, sporting goods, stationery, non-woven fabrics and so on.