770 and 772 Off-Highway Truck/Tractors Caterpillar


Front Suspension (Cylinder) - Remove

Usage:

770 BZZ

拆卸步骤

表 1
所需工具    
工具     零件号     零件说明     数量    
A     148-0357     支杆提升总成     1    
2H-2157 螺栓     8    
1D-4635 螺栓     4    

开始:

  1. 拆下轮胎和轮缘(前)。 请参阅拆解和组装, "轮胎和轮缘(前) - 拆卸和安装"。

    ------ WARNING! ------

    为了避免可能造成的人身伤害,在拆解前悬架油缸前卸掉充氮压力。


    ------ WARNING! ------

    高压油缸 在释放压力之前,不可拆卸任何零部件,否则会造成人身伤害。


  1. 放出悬架油缸中的氮气。 请参阅专门说明书, REHS4445, "维修非公路卡车的悬架油缸"。



    图 1g00509926

  1. 从液压夹钳行车制动器上断开软管组件 (1) 。



    图 2g00509929

  1. 将适当的起吊设备套到转向臂 (2) 上。

  1. 从车轴上拆下螺栓 (3) 并降低转向臂 (2) 。



    图 3g01420212



    图 4g01420213

  1. 断开线束组件 (7) 。 断开润滑脂软管组件 (5) 。 卸下螺栓 (4) 。 卸下垫片 (6) 。



    图 5g02299755

  1. 使用合适的升降机将工具 (A) 连接到车轴上。 使用工具 (A) 和合适的升降机支撑前悬架油缸和车轴的重量。



    图 6g02438297

  1. 拆下螺栓 (8) 。

  1. 将车价组件作为整体从前悬架油缸和车轴上拆下。 前悬架油缸和车桥的整体重量约为 816 kg (1800 lb)。

  1. 拆下键 (9) 。

    注: 仅当前悬架油缸需要水平放置时才需要进行下列步骤。




    图 7g02438358

  1. 将工具 (A) 放置在平整地面上。 拉出位于工具 (A) 上的两个开口销 (10) 和销。

  1. 将合适的起吊设备套到前悬架油缸上。 拆下位于工具 (A) 底座两侧的螺栓 (X) 。 从工具 (A) 的底座上拆下前悬架油缸和车轴。



    图 8g02438359

  1. 将工具 (A) 、前悬架油缸和车轴放置在工具 (A) 的底座上。 安装销和开口销 (10) ,然后将前悬架油缸水平放置。

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