Watch repair skills classroom (c)

Watch fixed spring maintenance and processing production Spring also known as positioning spring is made of steel, the shift shift arm shift big jobs, easily broken, is one of the more vulnerable parts of the table machine. Shown below are several kinds of profile spring physical map. Spring arm rupture, the needle when the dial spring fixed gear can not pull the file to control the position of the clutch lever and the clutch wheel, winding may occur when the vertical wheel and the clutch wheel slippery when the needle is prone to appear when the handle