C4.4 Engines for Caterpillar Built Machines Caterpillar


Fuel Injection Pump Gear - Install

Usage:

C4.4 2W2

安装步骤

表 1
所需工具 
工具  零件号  零件描述  数量 
230-6284  正时销(凸轮轴) 
230-6283  正时销(曲轴) 
千分表 
- 磁性座和支架 


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。


注: 必须小心操作,确保在安装燃油泵齿轮时不会改变喷油泵正时。 小心遵循步骤安装燃油泵齿轮。

  1. 确保发动机正时处于正确位置。 有关正确位置,请参阅拆解和组装, "喷油泵齿轮 - 拆卸"。


    图 1g03722984


    图 2g03722986
    临时正时标记的对准。

  2. 确保燃油泵 (8)(未显示)的轴清洁且无损坏。

  3. 确保燃油泵齿轮 (5) 清洁且无磨损损坏。 如有必要,更换燃油泵齿轮。

  4. 将燃油泵齿轮 (5) 安装到喷油泵 (8)(未显示)。

  5. 确保齿轮 (3)、齿轮 (4) 和齿轮 (5) 上的临时正时标记都已对齐,且齿轮相互啮合正确。 参考图 2。

  6. 将新弹簧垫圈 (7)(未显示)安装到喷油泵 (8)(未显示)的轴上。

  7. 安装螺母 (6) 并用手拧紧。


    图 3g03722990


    图 4g03722993

  8. 转动曲轴,直至永久发动机正时标记对准,如图 3 中所示

  9. 将工具 (B) 安装到位置 (X) 中的凸轮轴上,以确保凸轮轴正时正确。

  10. 将工具 (C) 安装到位置 (Y) 中的曲轴上,以确保曲轴正时正确。

  11. 将工具 (B) 从凸轮轴上拆下,将工具 (C) 从曲轴上拆下。

  12. 用适当的工具防止发动机在拧紧螺母 (6) 时旋转。 拧紧螺母 (6) 至扭矩为 160 N·m (118 lb ft)

  13. 用工具 (F) 确保齿轮 (3)、齿轮 (4) 和齿轮 (5) 的齿隙在规定值范围内。 更多信息请参阅技术规格, "齿轮总成(前)"。

  14. 使用清洁的发动机机油润滑齿轮的轮齿。

结束:

  1. 安装前盖。 请参阅拆解和组装, "前盖 - 拆卸和安装"以了解正确步骤。

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