C280-12 and C280–16 Marine Engines Caterpillar


Fuel Injector - Remove

Usage:

C280-16 A4F

拆卸步骤

表 1
所需工具    
工具     零件号     零件描述     数量    
A     5F-4764     撬杆     1    

开始:

  1. 拆下气门机构总成。 请参阅拆解和组装, "气门机构 - 拆卸"。
  2. 拆卸气门室罩盖座。 参考拆解和组装, "气门室罩盖座 - 拆卸和安装"。


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。


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

发动机起动可能会导致伤亡事故。

发动机起动,可能会伤害操作发动机或在发动机附近的人员。

进行保养工作时,要确保发动机不能起动。 当发动机配备自动起动/停止系统时,这十分重要。

对于配备气动系统的发动机,先关闭气动马达的供气阀,然后开始保修工作。


  1. 切断到发动机的燃料供应。



    图 1g01299033


    注意

    拆卸油管时,确保排放燃油系统,以避免燃油进入气缸或使燃油流过发动机。


  1. 将容器放到燃油压力控制阀 (1) 的下方。 拆下一个螺塞,以放出缸盖内单体喷油器上方的燃油。



    图 2g01299028

  1. 将供油管组件 (3) 从供油歧管处断开。

  1. 通过供油管组件 (3) 将压力调节为207 kPa (30 psi)的干净承压空气引入回油管组件 (2) 。 此举目的是将来自缸盖的燃油驱除到回油歧管中。

  1. 拆下供油管组件 (3) 和回油管组件 (2) 。 塞上或盖住所有开口。



    图 3g01299027

  1. 拆下螺栓 (4) 和单体喷油器卡箍 (5) 。

  1. 用工具 (A) 撬动喷油器 (6) 。 这将使孔中的喷油器松动。

  1. 小心从缸盖上拆下喷油器 (6) 。 在喷油器上打上标记,以便识别缸盖。

  1. 将塑料塞安装到缸盖的喷油器孔中。

    注: 将一个干净的护盖放到缸盖上方,以防止空气中的浮尘或磨损颗粒进入发动机。

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