起重机在使用中，各运动部件不可避免的会产生磨损、连接件松动、油液变质、金属结构产生腐蚀，从而引起起重机的技术性能、经济性能和安全性能不同程度的降低。因此，在起重机零件磨损尚未达到影响起重机产生故障程度之前，为预防和消除隐患，保证起重机经常处于良好的状态，应对起重机进行维护和保养。
During the use of the crane, the moving parts will inevitably wear, loose connectors, oil deterioration and corrosion of metal structure, which will reduce the technical performance, economic performance and safety performance of the crane to varying degrees. Therefore, in order to prevent and eliminate hidden dangers and ensure that the crane is always in good condition, the crane shall be maintained before the wear of crane parts has reached the degree that affects the failure of the crane.
做好起重机的维护和保养，能起到如下作用。
The maintenance of the crane can play the following roles.
1、保证起重机经常具有良好的技术性能，是各个机构工作正常可靠，提高其完好率、利用率等管理指标。
1. To ensure that the crane often has good technical performance is the management index for each mechanism to work normally and reliably and improve its integrity rate, utilization rate and so on.
2、保证起重机具有良好的使用性能，加强结构件的保护，保持连接牢靠、电液元器件动作与功能正常，避免因机电因素产生异常震动，满足起重机正常使用要求。
2. Ensure that the crane has good service performance, strengthen the protection of structural parts, maintain firm connection, normal action and function of electro-hydraulic components, avoid abnormal vibration due to electromechanical factors, and meet the requirements for normal use of the crane.
3、保证起重机的安全使用。
3. Ensure the safe use of the crane.
4、符合国家及部门规化粪池模具 精密铸造 钢纤维 盐水注射机 风电基础模具 nsk轴承经销商 nsk轴承总代理 保定空调移机定的有关环保标准。
4. Comply with relevant environmental protection standards stipulated by the state and departments.