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


Hoist Cylinder - Assemble

Usage:

773D 7CS

组装步骤

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 


    图 1g00507799

  1. 检查所有 O 形密封圈和部件有无磨损或损坏。

  2. 利用所密封的润滑剂轻轻润滑所有 O 形密封圈。

  3. 使用工具 (B)(图中未显示)将锁环 (23) 安装至油缸组件 (1) 的盖端。

  4. 将轴承 (22) 冷却至温度为 −75 °C (−103 °F)。 将轴承 (22) 置于油缸组件 (1) 中,直到轴承 (22) 抵住锁环 (23) 就座。

  5. 使用工具 (B)(图中未显示)将其余锁环 (23) 安装至油缸组件 (1)。

  6. 将支撑环 (21) 和 O 形密封圈 (20) 安装在油缸组件 (4) 上。

  7. 将承磨环 (19) 安装至连杆组件 (5)。 将密封圈 (17) 和 (18) 以及连杆雨刷器 (16) 安装至油缸组件 (4)。 利用所密封的润滑剂润滑密封圈 (17) 和 (18)。 利用所密封的润滑剂润滑连杆雨刷器 (16) 的唇形部位。

  8. 将承磨环 (15) 和密封组件 (14) 安装至活塞 (8)。

  9. 将盖 (2) 安装在连杆组件 (5) 上。

  10. 将连杆雨刷器 (13) 安装到盖 (2) 上。 利用所密封的润滑剂润滑连杆雨刷器 (13) 的唇形部位。 将密封圈 (12) 和 (11) 安装至盖 (2)。 利用所密封的润滑剂润滑密封圈 (12) 和 (11)。

  11. 将支撑环 (10) 和 O 形密封圈 (9) 安装在盖 (2) 上。

  12. 安装头部件 (2)。 使用工具 (A) 将连杆组件 (5) 安装到油缸组件 (4) 中。

  13. 将活塞 (8) 安装到油缸组件 (4) 的端部。 安装活塞 (8) 时使密封组件 (14) 朝向油缸组件 (4) 的内侧。 使用软面锤安装活塞 (8)。

    注: 确保活塞 (8) 中的螺栓孔与连杆组件 (5) 中的螺栓孔对齐。

  14. 将螺栓 (7) 安装到活塞 (8) 上。 拧紧螺栓 (7) 至扭矩为 240 ± 40 N·m (175 ± 30 lb ft)

  15. 将承磨环 (6) 安装到油缸组件 (4) 的端部。

  16. 使用工具 (A) 在油缸组件 (1) 中移动连杆组件 (5) 和油缸组件 (4)。

  17. 将螺栓 (3) 安装至盖 (2),但不要拧紧。

  18. 展开连杆组件 (5) 和油缸组件 (4)。 拧紧螺栓 (7)。

结束:

  1. 安装举倾机构油缸。 请参阅拆解和组装, "举倾机构油缸 - 安装"。

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