345D, 349D and 349D2 Excavators and 345D MHPU and 349D MHPU Mobile Hydraulic Power Units Machine Systems Caterpillar


Gear Pump (Pilot) - Remove

Usage:

345D L BYC

拆卸步骤

开始:

  1. 释放系统压力。 请参阅拆解和组装, "系统压力 - 释放"。

注: 在所有软管、所有软管组件、所有导线及所有管组件上作出识别标记,以便安装。 插接好所有软管组件和所有管组件。 这将有助于防止液体渗漏,并有助于防止污染物进入系统。


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。


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

滚热的油或液压油的压力会对人员造成伤害。

发动机停机之后,液压油的压力仍会保留在液压系统里。 对液压系统进行维修之前,如果不事先释放压力,可能会造成严重伤害。

卸下液压系统的部件或管路时,确保所有的作业机具都已降到地面上,而且液压油温度已冷。 只能在发动机停机,并且加注口盖冷却到可以用徒手触摸时才能卸下加注口盖。


  1. 将液压系统中的油排入合适的容器以便保存或废弃这些油。 请参阅操作和保养手册, "液压系统机油 – 更换"。



    图 1g01723073

  1. 断开软管组件 (2) 。

  1. 拆下螺栓 (1) 、齿轮组件 (3) 和 O 形密封圈。

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