The reason lies in

　　1.Steady things always happen. The top wire of the coupling is loosened.

　　2.lubrication.

　　3.Battle between departments connected to the control line (power line transmission line)

　　4.The user voltage is too low to drive the current beyond the rigid parameters such as pony pulley.

　　Handling Essentials

　　5.Tighten the top line of the coupling at the dislocation of the spindle.

　　6.If a little lubricant is applied above 40 #, it will hinder the shaft connector.

　　7.Remove all connections.

　　8.Regulate the current of the driver with a stable power supply

　　corporate culture

　　9.Intellectual and moral integrity.

　　10.Learning organization and enterprising employees.

　　11.Diversified products and specialized management.

　　12.Safety, unity, low cost and high efficiency.

　　13.Innovation as the outline, subdivided into objectives, brand as the soul, quality as the bone.

　　14.Listen carefully, understand accurately, implement resolutely and accomplish tasks.

　　15.Progress should be made in the process of correction, perfection should be made in the process of improvement, innovation should be made in the process of change and efficiency should be achieved in the process of reform.

　　16.Make a little progress every day.

　　10. Don't give up, don't give up.

　　11. Don't complain, don't complain.