4WRA6E1-15-22/G24N9K4/V

4WRA6E1-15-22/G24N9K4/V

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R900913442 4WRAE6W1-15-22/G24N9K31/A1V

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R900913445 4WRAE6W1-30-22/G24N9K31/A1V

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导致油液变质；此外，油液中析出的沥青等沉淀物还会堵塞小孔或狭胀，配合间隙变小，影响阀芯移动，有被卡住的可能

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正确选用液压油的粘度。3）经常清洗滤清器，防止堵塞。4）分配器手柄不应长时间处于“提升”或“压降”位置。

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R900920588 4WRAE10E30-22/G24N9K31/A1V

R900921245 4WRA6E30-22/G24N9K4/V-589

R900921739 4WRA10E30-22/G24N9K4/V

R900922441 4WRA10W30-22/G24N9K4/V

R900923472 4WRA6W07-22/G24N9K4/V

R900924377 4WRA6EB30-22/G24N9K4/V

R900925006 4WRAE6E07-22/G24N9K31/A1V

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防止液压油温度过低。液压油温度过低时，由于液粘度增加，将可能引起一些故障，

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防止液压油温度过高。在工作过程中，如果发现液压没温度过高，必须及时查找原因加以排除，否则将产生如下不良影响和后果