It plays an important role lcd display in the rotating buffer memory

 Two types of motor failure by rotating crane crane pictures, directional control valves, brake valve, relief valve, overload, find fault, it needs to investigate the hydraulic system diagram gradual effect of combining different parts. Examination found that Lcd display modules the rotating motor is working properly, no abnormal sound or heat, can be reversed, analysts believe that is good. When the rotary directional control valve, the pressure valve is a check valve to the left to the right side of the rotating motor through the opening stroke, the left and right side is normal. Check the pressure gauge, the working pressure is normal  work and no vibration and noise, so that normal rotary valve. Brake brake, parking Serial display modules can be stopped, brake, and has nothing to do brake. In the inspection found no problems, and finally check the battery. It plays an important role in the rotating buffer memory. Cranes and hydraulic accumulators and batteries, has two main functions, the first time the engine is running at high speed within a short period of time, the energy storage device, thereby reducing the number of hydraulic pumps, saving engine power.