740 GC, 740 Ejector, 745 Articulated Truck Power Train Caterpillar


Transmission Hydraulic Control Valve - Remove and Install

Usage:

745 3F6

拆卸步骤

开始:

  1. 拆下后曲轴箱护罩。


注意

在进行检验、保养、测试、调整及维修产品期间,必须小心以确保装好排放出的油液。 在打开任何舱室或解体任何储有液体的部件之前,要准备好合适的容器收集液体。

有关收集和盛接 Cat 产品上油液的适用工具和用品,请参阅专门出版物, NENG2500, "代理商维修工具目录"。

按照当地法规和要求处置所有液体。


  1. 将变速箱油排入合适的容器中。


    图 1g03865537

  2. 断开软管组件 (3)。 拆下螺栓和垫圈 (1)。 拆下油底壳 (2)。


    图 2g03865577

  3. 拆下将吸油管 (4) 连接到歧管的螺栓 (6)。

  4. 拆下螺栓 (4) 和垫圈。

  5. 拆下吸油管组件 (6) 和 O 形密封圈。

  6. 拆下管组件 (5) 和 O 形密封圈。


    图 3g03865611

  7. 断开线束组件 (10)。

  8. 拆下变速箱控制阀 (8) 和 O 形密封圈。

  9. 拆下主安全阀 (9) 和 O 形密封圈。


    图 4g03865670
    主安全阀

  10. 拆下 O 形密封圈 (11) 和密封圈 (14)。 拆下螺母 (13) 和线圈组件 (12)。


    图 5g03865636

  11. 拆卸螺栓 (15) 和垫圈。 拆下歧管 (16) 和密封垫。

  12. 从歧管 (16) 上拆下阀 (17) 和 (18) 以及 O 形密封圈。


    图 6g03865648

  13. 拆下电缆扎带 (20) 并将线束组件 (10) 放到一旁。

  14. 拆下螺栓 (19) 和垫圈。

  15. 拆下板 (21) 和密封垫。

安装步骤

  1. 按与拆卸相反的顺序安装变速箱液压控制装置 (8)。

    1. 使用所密封的润滑剂润滑变速箱液压控制阀 (8) 和主安全阀 (9) 的孔。

    2. 拧紧变速箱液压控制阀 (8) 的螺栓至扭矩为 3.7 ± 0.8 N·m (33.0 ± 7.0 lb in)

    3. 拧紧螺母 (13) 至扭矩为 6.1 ± 0.7 N·m (54 ± 6.0 lb in)

    4. 将主安全阀 (9) 拧紧至扭矩为 100 ± 10 N·m (74 ± 7 lb ft)

    5. 使用所密封的润滑剂润滑阀 (17) 和 (18) 的孔。

    6. 使用所密封的润滑剂润滑管组件 (5) 的孔。

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