3408E and 3412E Engines for Caterpillar Built Machines Caterpillar


Unit Injector Hydraulic Pump Drive - Install

Usage:

769C 01X

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並縮短部件使用寿命。




    图 1g01197018

  1. 将 O 形密封圈 (15) 定位到单体喷油器液压泵驱动装置 (11) 上。

  2. 利用干净的机油轻轻润滑前壳体孔和单体喷油器液压泵驱动装置上的密封。

  3. 将单体喷油器液压泵驱动装置 (11) 定位到前壳体上。


    图 2g01197016


    图 3g01197015


    图 4g00555906

  4. 将底部螺栓 (13) 安装到单体喷油器液压泵驱动装置 (11) 中。

  5. 安装安装螺栓 (12)。 拧紧安装螺栓 (12) 至扭矩为 5 ± 3 N·m (44 ± 27 lb in)

  6. 安装销 (14) 和密封。 拧紧销 (14) 至扭矩为 105 ± 10 N·m (77 ± 7 lb ft)

  7. 再次拧紧安装件螺栓 (12) 至扭矩为 55 ± 7 N·m (41 ± 5 lb ft)

    注: 当 1 号活塞位于上止点时,可以对齐前齿轮总成上的正时标记。 将齿轮 (7) 上的正时标记与凸轮轴齿轮上的正时标记对准。 图 4 显示了正时标记的对准。

  8. 将齿轮 7 定位在液压泵驱动装置上。 () 用螺栓 (8) 安装固定板 (9)。 拧紧螺栓至扭矩为 135 ± 20 N·m (100 ± 15 lb ft)

  9. 将正时传感器 (10) 安装到前壳体内。 请参阅拆解和组装, "转速/正时传感器 - 拆卸和安装"。


    图 5g01197005

  10. 安装 O 形密封圈并连接软管组件 (4)、 (2) 和 (1)。

  11. 连接线束组件 (6)、 (5) 和 (3)。

结束:

  1. 安装前盖。 请参阅拆解和组装, "前盖 - 安装"。

  2. 安装单体喷油器液压泵。 请参阅拆解和组装, "单体喷油器液压泵 - 安装"。

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