3408E and 3412E Engines for Caterpillar Built Machines Caterpillar


Injection Actuation Pressure Control Valve - Assemble

Usage:

769C 01X

组装步骤


注意

保持所有零件清洁无杂质。

杂质会造成快速磨损並縮短部件使用寿命。



注意

不要让脏物进入燃油系统。 彻底清洁将要拆开的燃油系统部件的周围区域。 在拆开的燃油系统部件上安放适当的盖。


注: 检查 O 形圈的状态。 如果 O 形圈磨损或损坏,应使用新零件更换。



    图 1g00601407

  1. 如果在拆解步骤过程中拆下了喷油作动压力控制阀,应将喷油作动压力控制阀 (9) 安装到缸体组件 (2) 中。 将喷油作动压力控制阀拧紧到 50 ± 5 N·m (37 ± 4 lb ft) 的扭矩。

  2. 如果在拆解步骤过程中拆下了隔套和螺母,应安装隔套 (10) 和螺母 (11)。 拧紧螺母至扭矩为 5.5 ± 1.5 N·m (49 ± 13 lb in)


    图 2g00601329

  3. 如果在拆解步骤过程中拆下了螺塞,应安装螺塞 (7) 和螺塞 (8)。 将螺塞 (7) 和 (8) 拧紧至扭矩为 15.5 ± 0.5 N·m (11 ± 0.4 lb ft)


    图 3g00601405

  4. 在缸体组件和补偿器 (1) 之间安装四个 O 形密封圈 (5)。 利用干净的发动机机油稍微润滑 O 形密封圈。

  5. 如果在拆解步骤过程中拆下了螺塞,应将螺塞 (6) 安装到补偿器中。 拧紧螺塞至扭矩为 25 ± 3 N·m (18 ± 2 lb ft)


    图 4g00601324

  6. 将四个 O 形密封圈 (4) 安装到缸体组件 (2) 中。 利用干净的发动机机油稍微润滑 O 形密封圈。

  7. 如果在拆解步骤过程中拆下了螺塞,应将螺塞 (3) 安装到补偿器 (1) 中。 拧紧螺塞至扭矩为 10.0 ± 0.2 N·m (89 ± 2 lb in)

结束:

  1. 安装喷油作动压力控制阀。 请参阅拆解和组装, "喷油作动压力控制阀 - 安装"。

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