Today's young people are very strange to the use of sewing machines, but for people in the 1970s, the most beautiful scene is watching their mothers make new clothes with sewing machines. The previous sewing machines were all used at home. They were small in size and needed manual treading and sewing. Today's sewing machines have become fully automatic, and the application range is also spread across various industries. But it is still widely used in industrial production. Sofa sewing machine is one of them. It can not only process cloth sofa, but also sew thick materials such as leather products. The sewing seam is uniform, beautiful and generous. It is a good helper for sewing sofa seat covers. The sofa sewing machine adopts electric power, which saves time and effort.

So how to operate the electric sewing machine correctly? What are the precautions? Let me introduce it to you.

When operating the electric sewing machine, the winding sequence of the upper thread and the placement of the lower thread core must be correct. Operate according to the instructions, otherwise the sewing machine cannot work normally; When threading, the threading direction must be correct and the needle must be threaded from front to back, otherwise normal sewing cannot be performed; Do not use the foot pedal switch and the power button at the same time; Please take out the battery when using the transformer.

Precautions during use: the power button and the foot pedal cannot be used at the same time; The rectifier and dry battery cannot be used at the same time, which will cause damage to the machine; When the positive and negative poles of the battery are wrong, the machine will reverse, and the machine will not be able to sew when it reverses; Reversing the machine continuously for a long time will damage the machine; This machine cannot be used for hard and thick fabrics.