装载机液压系统是装载机配件中比较重要的一个配件，一旦出现问题就会导致整个装载机无法工作，常见的一种的问题是液压系统泄漏。山东装载机液压系统的泄漏主要有两种，一是固定不动部位密封的泄漏；二是滑动部位密封的泄漏，亦可分为内泄漏和外泄漏。内泄漏主要产生在液压阀、液压泵及液压缸内部油液从高压腔流向低压腔；外泄漏主要产生在液压系统的液压管路、液压阀、液压缸和液压泵的外部，即向零部件的外面渗漏。具体表现为管接头、密封件、元件接合面、壳体及系统自身原因而引起的油液泄漏。
Shandong Loader Parts Loader hydraulic system is one of the more important parts, if there are problems it will cause the entire loader does not work, a common problem is that the hydraulic system leak. Shandong loader hydraulic system

leak there are two, one is fixed and sealed the leak site; the second is a sliding seal leakage sites, may be divided into internal leakage and external leakage. Is mainly produced in the leakage of hydraulic valves, hydraulic pumps,and hydraulic fluid inside the cylinder from the high pressure chamber of the low pressure chamber; external leakage mainly produced in the external hydraulic lines of the hydraulic system, hydraulic valves, hydraulic cylinders and hydraulic pumps, namely parts the outside of the leak. Specific performance fittings, seals, component joints, oil leak case and caused the system for their own reasons.
 
装载机液压系统的泄漏一般都是在使用一段时间后产生。从表面现象看，多为密封件失效、损坏、挤出，或密封表面被拉伤等造成。主要原因有：油液污染、密封表面粗糙度不当、密封沟槽不合格，管接头松动、配合件间隙增大、油温过高、密封圈变质或装配不良等。
Shandong loader hydraulic system leaks are generally in use for some time to produce. From appearances, the seal failure, damage, extrusion, or sealing surface is mostly caused by strain. Main reasons: oil pollution, improper sealing

surface roughness, seal grooves failed, loose fittings, with pieces gap increases, the oil temperature is too high, bad seal deterioration or assembly.