The coupling maintenance is aimed at filling a certain amount of working oil into the working chamber cavity of the coupling reaction device, and with the help of the normal operation of the motor device, it provides the necessary mechanical capacity for the working pump wheel device, and in this process, it can transform mechanical energy into liquid energy. This part of the liquid can effectively drive the turbine to maintain a high rotation speed, and then again convert the liquid into mechanical energy. On this basis, the effective energy transfer of the motor relative to the working machine device is realized with the aid of the axis output mode.

It is not difficult to know from the analysis of the oil filling characteristics of the fluid coupling device. To achieve the stepless speed regulation of the speed regulating fluid coupling device, the most direct and effective way is to continuously and reasonably change the index of oil charge in the flow channel. Based on the above analysis, in order to ensure the safety and stability of the speed regulating fluid coupling device in normal operation, we need to add additional operations to the external oil chamber outside the coupler, and equipped with specialized draft tube components. The speed regulating fluid coupling filter element has strong adaptability. It can operate normally under various harsh environment conditions. It has low maintenance difficulty and long service life. The comprehensive benefit is outstanding.

When the output speed of the coupler is very low, that is, when the position of the catheter is close to 0% bits, there may be a noise that does not appear in the normal operating range. This is due to the "whistle effect" produced by the meeting of the outlet of the outlet of the conduit and the outer edge of the pump wheel. In this case, as long as the position of the catheter can be lifted slightly improve, does not belong to the coupling fault. Regular inspection of oil quality and timely replacement of qualified work oil; if we need to empty the oil in the coupling box, we can unscrew the oil drain hole of the lower and lower part of the box, and also load the stop valve at the oil drain hole.