324D, 325D, 326D and 329D Excavators and 329D MHPU Mobile Hydraulic Power Unit Machine Systems Caterpillar


Load Control Valve (Stick Cylinder) - Remove

Usage:

325D L A3R

拆卸步骤

表 1
所需工具    
工具     零件号     零件说明     数量    
A     FT-2674     真空盖     1    

开始:

  1. 释放液压系统压力。 请参阅拆解和装配, "液压系统压力 - 释放"。

注: 应在进行任何保养之前获得液压油样本,以便确定系统污染级别。 请参阅油液分析实验室指南, SEBF3116, "获取机油样本进行 S·O·S 分析"。 有关正确的位置,请参阅操作和保养手册, "采样周期及采样阀的位置"。


注意

保持所有零件清洁无杂质。

液压系统被异物污染会缩短液压系统部件的使用寿命。

为了避免污染物进入液压系统,总要在断开后塞住或盖住管路、管接头或软管。 罩住已解体的部件,然后在组装前正确清洁它们。

在更换任何主部件后,或特别是在部件故障后,正确清洁液压系统,以便去除全部污染物。



注意

在检验、保养、测试、调整及维修发动机时,请小心确保盛接流出的液体。 在打开或拆解任何储有液体的部件之前,要准备好合适的容器收集液体。

有关适合收集和盛接卡特彼勒产品上的液体的工具和供应品,请参阅专门出版物, NENG2500, "卡特彼勒代理商工具目录"。

按照本地法规和条例处置所有液体。





    图 1g00690963

  1. 从液压油箱拆下盖。 将工具 (A) 连接到液压箱。 对工具 (A) 施加 344 ± 70 kPa (50 ± 10 psi) 的压力。



    图 2g01220136

  1. 拆下螺栓 (1) 和垫圈以便拆下盖 (2) 。



    图 3g00953950

  1. 断开软管组件 (5) 和 (7) 。

  1. 拆下螺栓 (3) 。

  1. 拆下螺栓 (4) 和沉降阻尼阀 (6) 。

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