C15 and C18 Engines for Caterpillar Built Machines Caterpillar


Electronic Unit Injector - Install

Usage:

631E 1AB

安装步骤

表 1
所需工具 
工具  零件号  零件描述  数量 
8T-2998  润滑剂 
1U-5718  真空泵 
169-7372 油液取样瓶 
4C-4057
7.9 mm (0.31 inch)OD 
4C-5552  大号孔刷 
4C-6774  真空枪套件 
8T-7765  表面调节垫 


注意

保持所有零件清洁无杂质。

杂质会造成快速磨损並縮短部件使用寿命。


  1. 使用工具 (C) 清除缸体上的燃油和机油。 安装电子单体喷油泵之前,尽可能完全排出缸体中的燃油和机油。 可能需要多排几次。

  2. 使用工具 (D) 清除电子单体喷油泵套筒内的积碳。 可以用工具 (E) 清除电子控制喷油泵套筒和气缸中的松散材料。

  3. 使用工具 (F) 清除电子单体喷油泵套筒内底座区域的积碳。

  4. 将 O 形密封圈安装在电子单体喷油器上。 使用按 50/50 比例混合的清洁发动机机油和工具 (B) 润滑一下顶部两个 O 形密封圈。


    图 1g01114892


    注意

    当换掉电子控制单体喷油器的时候,新喷油器的代码必须得通过电气伺服工具上的校准菜单编入发动机个人模块软件中。 如果没有输入新喷油器的代码,将会默认应用原来喷油器的特性设置。

    如果不可能立刻将喷油器代码编入个人模块软件,对发动机也不会产生很大的伤害。 不过应该尽快编入电子控制单体喷油器的代码,以便能发挥发动机的最大性能。


  5. 将电子单体喷油器 (2) 安装到缸盖中的原有位置。

  6. 安装隔套 (5)、卡箍 (6) 和螺栓 (4)。 拧紧螺栓至扭矩为 55 ± 10 N·m (41 ± 7 lb ft)

  7. 将桥接组件 (3) 安装到各自位置。

    注: 确保桥接组件上的大孔安装时朝向摇臂。

  8. 将线束组件 (1) 连接在电子单体喷油器 (2) 上。 拧紧螺母至扭矩为 2.5 ± 0.25 N·m (22 ± 2 lb in)

结束:

  1. 安装摇臂和摇臂轴。 请参阅拆解和组装, "摇臂和摇臂轴 - 安装"。

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