压路机在长期的使用过程中 ,随着时间的推移其技术状况不断发生变化 ,使用性能逐渐变差 ,以致影响到压路机的正常使用。研究并掌握机器技术状况变化的客观规律 ,可以合理地组织技术保养 ,及时地排除故障 ,以延长机器的使用寿命 ,提高生产效率 ,降低施工成本 ,保证工程的施工质 Roller in the long-term use of the process, as time goes by its technical conditions continue to change, the use of performance gradually worsened, resulting in the normal use of roller impact. To study and grasp the objective laws of the changes in the status of machinery and technology, we can reasonably organize technical maintenance and timely troubleshooting so as to prolong the service life of machines, increase production efficiency, reduce construction costs and ensure construction quality