一台柳工20 t振动压路机,压装了1根振动马达到泵的高压胶管,使用一星期后出现了没有强振的故障,继续使用2天后弱振也没有了。经检查液压油里有很多金属末,并发现振动马达内部已被打烂,基本报废,泵内部也磨损严重。该机使用仅2 000 h,装用进口原装泵和马达,液压 A Liugong 20 t vibratory roller, press-fit a vibration motor to the pump high-pressure hose, the use of a week after the emergence of no strong vibration failure, continue to use the 2 days after the weak vibration is gone. After checking the hydraulic oil has a lot of metal at the end, and found that the internal vibration motor has been smashed, basically scrapped, the pump internal wear and tear. The machine uses only 2 000 h, equipped with imported original pump and motor, hydraulic