C3.4B Engines for Caterpillar Built Machines Caterpillar


Water Temperature Regulator - Remove and Install

Usage:

CD-44B 398

拆卸步骤


注意

保持所有零件清洁无杂质。

杂质会造成快速磨损和缩短部件寿命。



注意

在检验、保养、测试、调整及维修产品时,务必留心,确保液体盛装在容器中。 在打开任何腔室或拆解任何储有液体的部件之前,要准备好用合适的容器收集液体。

按照本地法规和指令处置所有液体。


  1. 将冷却液从冷却系统中排入适当的容器至液位低于水温调节器,以便保存或废弃这些冷却液。 有关正确的排放步骤,请参阅操作和保养手册, "冷却系统冷却液 - 更换"。

  1. 拆下废气旁通阀调节器阀。 有关正确步骤,请参阅拆解和组装废气旁通阀电磁阀, " - 拆卸和安装"。



    图 1g02829476

    典型示例

  1. 松开散热器上软管的软管夹,然后从水温调节器壳体 (1) 上断开散热器上软管。

  1. 松开卡箍 (3) ,并将排气再循环 (EGR) 冷却器软管 (2) 从水温调节器壳体 (1) 上断开。 远离水温调节器壳体定位 EGR 冷却器软管。

  1. 将锁片滑入解锁位置,并将导线线束从冷却液温度传感器 (4) 上断开。

  1. 将螺栓 (6) 和螺栓 (7) 从水温调节器壳体 (1) 上拆下。

  1. 从缸盖上卸下水温调节器壳体 (1) 。

  1. 拆下垫片 (5) (未显示)。

  1. 如有必要,拆卸冷却液温度传感器。 有关正确步骤,请参阅拆解和装配, "冷却液温度传感器 - 拆卸和安装"。

安装步骤


注意

保持所有零件清洁无杂质。

杂质会造成快速磨损和缩短部件寿命。


  1. 确保所有部件清洁、无磨损和损坏。 如有必要,更换所有磨损或损坏的部件。

  1. 检查水温调节器是否正常工作。 请参阅系统操作、测试和调整, "水温调节器 - 测试",以了解测试水温调节器的步骤。 如果水温调节器工作不正常,必须更换整个组件。

  1. 如有必要,安装冷却液温度传感器。 有关正确步骤,请参阅拆解和装配, "冷却液温度传感器 - 拆卸和安装"。



    图 2g02829476

    典型示例

  1. 将密封垫 (5) (未显示)定位到水温调节器壳体 (1) 上。

    注: 确保密封垫朝向正确。

  1. 将螺栓 (7) 安装到水温调节器壳体 (1) 上。

  1. 将水温调节器壳体 (1) 定位到缸盖上。

  1. 将螺栓 (6) 安装到水温调节器壳体上,并用手拧紧。

  1. 将螺栓 (6) 和螺栓 (7) 拧紧至扭矩为 25 N·m (221 lb in)。

  1. 将软管 (2) 连接到水温调节器壳体上,并牢固拧紧卡箍 (3) 。

  1. 将上部散热器软管连接到水温调节器壳体 (1) 上,并牢固拧紧软管卡箍。

  1. 将导线线束连接至冷却液温度传感器 (4) 。 将锁片滑入锁定位置。

  1. 安装废气旁通阀电磁阀。 有关正确步骤,请参阅拆解和组装废气旁通阀电磁阀, " - 拆卸和安装"。

  1. 加注冷却系统至正确液位。 请参阅操作和保养手册, "冷却系统冷却液 - 检查"和操作和保养手册, "冷却系统冷却液 - 更换"以了解正确的加注步骤。

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