山东装载机http://www.132p.cn/液压系统的效率主要取决于液压泵的容积效率，当容积效率下降到72%时，就需要进行常规维修，更换轴承和老化的密封件，要更换或修复超出配合间隙的磨擦副，使其性能得到恢复。
　　
1、山东装载机直轴斜盘式柱塞泵分为压力供油型的自吸油型两种。压力供油型液压泵大都采用有气压的油箱，也有液压泵本身带有补油分泵向液压泵进油口提供压力油的。自吸油型液压泵的自吸油能力很强，无需外力供油?？科构┯偷囊貉褂拖洌诿看纹舳骱?，必须等液压渍箱达到使用气压后，才能操作机械。如液压油箱的气压不足时就担任机器，会对液压泵内的与滑鞭造成拉脱现象，出会造成泵体内回程板与压板的非正常磨损。采用补油泵供油的柱塞泵，使用3000h后，操作人员每日需对柱塞泵检查1-2次，检查液压泵运转声响是否正常。如发现液压缸速度下降或闷车时，就应该对补油泵解体检查，检查叶轮边沿是否有刮伤现象，内齿轮泵间隙是否过大。 对于自吸油型柱塞泵，山东装载机液压油箱内的油液不得低于油标下限，要保持足够数量的液压油。液压油的清洁度越高，液压泵的使用寿命越长。
Shandong loaders straight axis swashplate piston into two kinds of pressure from the sucking oil type. Oil pressure hydraulic pump were powered by air pressure in the tank, but also pump up the oil itself with the cylinder to provide

pressure oil pump inlet. Since the suction-type pump self-absorbing ability is very strong, no external oil supply. Rearward pressure of the hydraulic oil tank after each start the machine, such as hydraulic stains box must use air pressure, to operate machinery. Has served as insufficient hydraulic reservoir pressure machine, and slip inside the pump will cause whip pull off phenomenon, can cause abnormal wear of the pump body board and return the platen. Using up fuel supply to the piston pump, the use of 3000h, the operator checks the daily need for piston pump 1-2 times, check the pump running sound is normal. Found cylinder speed drops or stuffy car, you should pump up the disintegration of inspection, checking whether the impeller edge scratching phenomenon, the internal gear pump gap is too large. For self-suction-type piston pump, Shandong loader hydraulic oil tank must not fall below the lower limit of the oil standard, to maintain a sufficient amount of hydraulic oil. Cleanliness of hydraulic oil higher, longer pump life.
　　
2、山东装载机http://www.132p.cn/柱塞泵最重要的部件是轴承，如果轴承出现游隙，则不能保证液压泵内部三对磨擦副的正常间隙，同时也会破坏各磨擦副的静液压支承油膜厚度，降低柱塞泵轴承的使用寿命。据液压泵制造厂提供的资料，轴承的平均使用寿命为10000h，超过此值就需要更换新口。 山东装载机拆卸下来的轴承，没有专业检测仪器是无法检测出轴承的游隙的，只能采用目测，如发现滚柱表面有划痕或变色，就必须更换。 山东装载机在更换轴承时，应注意原轴承的英文字母和型号，柱塞泵轴承大都采用大载荷容量轴承，最好购买原厂家，原规格的产品，如果更换另一种品牌，应请教对轴承有经验的人员查表对换，目的是保持轴承的精度等级和载荷容量。
Shandong loaders piston most important component is the bearing, if the bearing clearance occurs, it can not guarantee normal internal pump three pairs of friction pair gap, but also undermine the friction pair hydrostatic bearing oil film thickness, lowering the ram pump bearing life. According to information provided by the manufacturer of the pump, the average life of the bearing is 10000h, this value would need to replace the new port. Shandong loader dismantled bearings, no professional testing equipment is unable to detect bearing clearance, but to use visual, such as found in the roller surface scratches or discoloration, it must be replaced. Shandong loader When replacing bearings, should pay attention to the original bearing the letters and models were powered by piston bearing large load bearing capacity, it is best to buy the original manufacturer, the original specifications, if the replacement of another brand, you should ask for bearing experienced personnel look-up table on the exchange, aimed at maintaining the level of accuracy and load bearing capacity.