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


Relief Valve (Pilot) - Remove

Usage:

325D L A3R

拆卸步骤

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"。


注意

在检查、保养、测试、调整及维修产品时,请小心确保盛接油液。 在打开任何舱室或拆卸任何含有油液的部件前,请准备好盛接液体用的适当容器。


------ WARNING! ------

在工作温度下,液压油温度很高且处于压力下。 热机油能造成烫伤。

为避免可能的人身伤害,在断开或拆下任何液压管路或部件之前,请释放作业机具液压回路(动臂、斗杆、铲斗和回转机构)、行驶回路及液压油箱加注口盖处的压力。

仅当发动机停止并且加注口盖冷却到可以接触时方可拆下加注口盖。


注: 先导安全阀位于机油滤清器座上,而该底座位于液压油箱的液压油滤清器上。

  1. 打开右后方通向泵室的门。


    图 1g00713285

  2. 从机油滤清器底座拆下先导安全阀 (1)。


    图 2g00713286

    注: 安全阀的各部件不可维修。 请勿拆解安全阀。

  3. 拆下 O 形密封圈 (2)。

  4. 拆下 O 型密封圈 (3)。

  5. 拆下 O 形密封圈 (4)。

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