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R978894052 4WE10Y11-3X/CG24N9K4

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R978894079 4WE10JB3X/CG24N9K4

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延长液压柱塞泵使用寿命的方法：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。