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


Steering 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 
B  1P-0808  多功能润滑脂 

  1. 检查所有 O 形密封圈和部件有无磨损或损坏。 如有必要,请更换部件。

  2. 利用所密封的润滑剂轻轻润滑所有 O 形密封圈。


    图 1g00505928

  3. 安装 O 形圈螺塞 (15) 和 O 形密封圈。 拧紧 O 形圈螺塞 (15) 至扭矩为 50 ± 7 N·m (37 ± 5 lb ft)

  4. 将支撑环 (5) 和 O 形密封圈 (4) 安装至盖 (2)。

  5. 将承磨环 (9)、密封组件 (8)、U 形杯密封 (7) 和连杆雨刷器 (6) 安装至盖 (2)。

    注: 利用所密封的润滑剂轻轻润滑密封组件 (8) 的密封唇、U 形杯密封 (7) 和连杆雨刷器 (6)。

  6. 将盖 (2) 临时安装至油缸组件 (1)。 用手拧紧盖 (2)。 小心地将连杆组件 (3) 安装至盖 (2) 和油缸组件 (1)。 从油缸组件 (1) 上卸下盖 (2) 和连杆组件 (3)。

  7. 将 U 形杯密封 (12) 和承磨环 (13) 安装至活塞 (14)。

  8. 将活塞 (14) 安装到连杆组件 (3) 上。 安装将活塞 (14) 固定至连杆组件 (3) 的螺栓 (10) 和垫圈 (11)。 将螺栓 (10) 上紧到 3100 ± 350 N·m (2280 ± 260 lb ft) 的扭矩。

  9. 将工具 (B) 涂覆到盖 (2) 的螺纹上。 将连杆组件 (3) 小心地安装至油缸组件 (1)。 将盖 (2) 安装至油缸组件 (1)。 当连杆组件 (3) 位于完全伸展位置时,将盖 (2) 拧紧至扭矩为 600 ± 130 N·m (440 ± 95 lb ft)

  10. 将转向油缸从工具 (A) 上拆下(图中未显示)。 转向油缸的重量约为 52 kg (115 lB)

结束:

  1. 安装转向油缸。 请参阅拆解和组装, "转向油缸 - 安装"。

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