液压系统是液压升降货梯的动力驱动机构,液压升降货梯的液压系统一旦出现故障,液压升降货梯连最基本的启动都无法做到,因此,我们要在日常使用液压升降货梯时,注重对其液压系统的定期保养。
   
1、液压油一旦出现变暗、发粘或有砂砾等异物时,应及时更换，检查滚轮、中间轴及轴承,油缸销轴及轴承,臂架铰轴及轴承等有无磨损,如有磨损应立即进行维修或更换。
Once the hydraulic oil darken, sticky or gravel and other foreign matter, should be replaced, check the wheel, intermediate shaft and bearings, cylinder pin and bearing, boom hinge shaft and bearings for wear, if worn should immediately for repair or replacement.   
2、各部位应分别加注一些润滑油,这样可以延长轴承的使用寿命，把液压油放尽弃掉,换上新油,避免继续使用旧油.否则系统中的运动部件就会加速磨损。
Each part separately should raise some oil, so you can extend bearing life, the hydraulic oil exhausted discarded and replaced with new oil to avoid continued use of old oil, otherwise the system will be accelerated wear of moving parts.  
3、检查所有的液压管道和接头,管道不得破损,接头不得松动,必须将所有接头拧紧，卸下并拆开下降阀,用压缩空气将柱塞吹净,然后装入重新安装。
Check all hydraulic pipes and fittings, pipes shall not damaged, loose joints shall be tightened all the joints, remove and open the lowering valve, the plunger blowing with compressed air, then into reinstalled.