773D, 773E, 775D and 775E Off-Highway Trucks Machine Systems Caterpillar


Hoist Cylinder - Disassemble

Usage:

773D 7CS

拆解步骤

表 1
所需工具 
工具  零件号  零件说明  数量 
A  1U-9900  液压油缸修复台 
3S-6224 电动液压泵 
B  1P-1861  挡圈钳 
C  3/4 in - 10 NC  螺栓 

开始:

  1. 拆下举倾机构油缸。 请参阅拆解和组装, "举倾机构油缸 - 拆卸"。


注意

在检查、保养、测试、调整及维修产品时,请小心确保盛接油液。 在打开任何舱室或拆卸任何含有油液的部件前,请准备好盛接液体用的适当容器。




    图 1g00507799

  1. 将适当的挡圈置于举倾机构油缸下面。 将举倾机构油缸中的剩余液压油排入适当的容器,以便弃置或储存。

  2. 将举倾机构油缸置于工具 (A) 中。 举倾机构油缸的重量约为 223 kg (490 lb)

  3. 将螺栓 (3) 和硬垫圈从盖 (2) 上拆下。

  4. 向外拉动盖 (2),直到可将挡块插入连杆组件 (5) 和油缸组件 (4) 之间。

  5. 将挡块安装在连杆组件 (5) 和油缸组件 (4) 之间。

  6. 将盖 (2) 从油缸组件 (1) 上移开。 将工具 (C) 安装在油缸组件 (1) 端部。 推动连杆组件 (5) 上的盖 (2)。

  7. 将油缸组件 (1) 的端部从油缸组件 (4) 中拉出。 从工具 (A) 上拆下油缸组件 (1)。

  8. 使用工具 (A) 移动油缸组件 (4) 中的连杆组件 (5)。

  9. 将承磨环 (6) 从油缸组件 (4) 端部拆下。

    注: 确保推动油缸组件 (4) 中的连杆组件 (5),以使螺栓 (7) 能够拆下。

  10. 从活塞 (8) 上卸下螺栓 (7)。

  11. 将油缸组件 (4) 从连杆组件 (5) 上拉开。 拆下盖 (2)。

  12. 从盖 (2) 上拆下 O 形密封圈 (9) 和支承环 (10)。

  13. 将密封圈 (11) 和 (12) 从盖 (2) 上拆下。 从盖 (2) 上卸下连杆雨刷器 (13)。

  14. 将螺栓 (7) 安装在连杆组件 (5) 上,然后将活塞 (8) 从油缸组件 (4) 中推出。

  15. 将密封组件 (14) 和承磨环 (15) 从活塞 (8) 上拆下。

  16. 将连杆雨刷器 (16) 和密封圈 (17) 和 (18) 从油缸组件 (4) 上拆下。 从油缸组件 (4) 上拆下承磨环 (19)。

  17. 将 O 形密封圈 (20) 和支承环 (21) 从油缸组件 (4) 上拆下。

  18. 使用工具 (B)(图中未显示)将两个锁环 (23) 从油缸组件 (1) 的盖端拆下。 使用适当的压具从油缸组件 (1) 上拆下轴承 (22)。

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