Detection process of hydraulic grab bucket working powerless fault       

The working process of the hydraulic grab bucket's failure is as follows:

First of all, to see whether the hydraulic oil level is up to standard, whether the filter is plugged and whether the oil grade meets the requirements. If an item is out of order, it should be solved first. Then, to observe whether the oil temperature is too high in the process of work, if too high, you should check the hydraulic oil cooling system, find out the cause and eliminate. Finally, the working pressure of the powerless parts is measured and compared with the standard value to make a judgment.

The best way to measure the working pressure is to measure the limit pressure. There are two methods to measure the limit pressure, one is the actual measurement method, the other is the simulation method. The specific method of actual measurement method is: let a working device overload work, measure its working pressure. The simulation method is: Simulation of work overload, measure the pressure, take different methods according to different devices, the motor drives the brake, generally use pilot oil to cut off the brake brake, when operating the device at the rated speed, the pressure measurement: hydraulic cylinder, the piston rod is fully extended or retract to continue operating after the action, measure the pressure. In the inspection of the fault, there is a common method called intercept method; the specific method is: in order to block the oil outlet or import parts, measuring the work pressure. The measured pressure is compared with the standard value, and the unequal value should be adjusted to the standard value. If the standard value is not adjusted, the pressure loss must be found, and the fault point is the spot. In actual measurement, these methods are often used together.