如果辽宁升降机使用的时间过长，液压系统就会有所堵塞，造成辽宁升降机升降速度过慢，有的时候可能不能升降，所以定时的清理液压系统很重要，那么我们应该如何清理液压系统呢？If the Liaoning elevator use time is too long, the hydraulic system will be blocked, causing Liaoning lift lifting speed is too slow, sometimes may not be able to lift, so cleaning hydraulic system timing is very important, so we should how to clean up the hydraulic system?
 
1.选择清洗油：当系统管路、油箱较干净时，可选用与工作油液相同黏度的清洗油；如系统内不干净，可选用黏度稍低的清洗油清洗。清洗油应与辽宁升降机系统工作介质、所有密封件的材质相容。Selection of cleaning oil: when the system pipeline, oil tank cleaner, you can choose to work with the same viscosity oil cleaning oil; if the system is not clean, you can choose a slightly lower viscosity oil cleaning. The cleaning oil shall be compatible with the working medium of the lift system in Liaoning and the material of all seals.

2.加热清洗油：热油能使辽宁升降机系统内附着物容易游离脱落，一般需加热至50～60℃，清洗压力为0.1～0.2MPa，清洗油流量应尽可能大些，以利于带走污物。Cleaning oil: oil heating can make Liaoning elevator system attached material easy to free fall, generally need to be heated to 50 to 60 DEG C, cleaning pressure is 0.1 ~ 0.2MPa, the cleaning of oil flow should be as large as possible, in order to take away the dirt.

3.安装滤油器：在辽宁升降机清洗回路中，进油口安装50～100m的粗滤油器，回油口安装10～50m的精滤油器。开始时粗滤，冲洗一段时间后逐步改用网眼细的滤油器，进行分次过滤。Install oil filter: in the Liaoning elevator cleaning circuit, the oil inlet is installed 50 ~ 100m crude oil filter, back to the oil port installation of 10 ~ 50m fine oil filter. At the beginning of coarse filter, a period of time after washing and gradually replaced by oil filter mesh fine, for filtering.

4.应使辽宁升降机液压泵间歇运转：为使清洗效果好，应使液压泵转转、停停。在清洗过程中应用木锤轻轻敲击油管数次，以促使污物尽快脱落，管路的弯曲和焊接部位要多锤击。Liaoning should make the lift pump intermittent operation: to make good cleaning effect, should make the hydraulic pump stop, stop. In the process of cleaning the use of wood hammer percussion tubing several times, so as to facilitate the removal of dirt as soon as possible, the pipe bending and welding parts to hammer.

5.确保清洗液流动为紊流状态：为了有效的清洗辽宁升降机，清洗液流动必须成为紊流状态；否则，清洗液应增加流量，升高温度，降低黏度。小流量室温下清洗，一般效果较差。To ensure that the cleaning fluid flow into a turbulent state: in order to effectively clean the lift in Liaoning, cleaning fluid flow must become turbulent state; otherwise, the cleaning fluid should increase the flow rate, increase the temperature, reduce viscosity. Small flow room temperature cleaning, the general effect is poor.