770 and 772 Off-Highway Truck/Tractors Caterpillar


Center Arm (Steering) - Remove and Install

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     1U-7505     液压千斤顶     1    
B     5P-2145     拉拔器接头     1    
8T-5255 液压千斤顶     1    
C     5P-2145     拉拔器接头     1    
6V-3160 双作用油缸     1    
1A-1935 全高螺母     1    
5P-8250 垫圈     1    
5P-4776 工具螺柱     1    
3S-6224 电动液压泵总成     1    

开始:

  1. 拆下转向连杆。 请参阅拆解和装配, "转向连杆 - 拆卸和安装"。



    图 1g01388487

  1. 断开润滑脂软管组件 (1) 。 卸下螺栓 (2) 。



    图 2g01388557

  1. 从中央转向臂 (3) 上拆下锁 (4) 。



    图 3g01388562

  1. 在中央转向臂 (3) 下安置工具 (A) 。 拆下销 (6) 。

  1. 拆下中央转向臂 (3) 。 中央转向臂 (3) 的重量约为 34 kg (75 lb)。 拆下垫片 (5) 。



    图 4g01388583

  1. 使用工具 (B) 卸下轴承 (7) 。



    图 5g01388610

  1. 利用工具 (C) 拆下轴承 (8) 。

安装步骤

表 2
所需工具    
工具     零件号     零件说明     数量    
A     1U-7505     液压千斤顶     1    
B     5P-2145     拉拔器接头     1    
8T-5255 液压千斤顶     1    
C     5P-2145     拉拔器接头     1    
6V-3160 双作用油缸     1    
1A-1935 全高螺母     1    
5P-8250 垫圈     1    
5P-4776 工具螺柱     1    
3S-6224 电动液压泵总成     1    



    图 6g01389466

  1. 降低轴承 (7) 温度。 利用工具 (B) 安装轴承 (7) 。



    图 7g01389480

  1. 冷却轴承 (8) 。 使用工具 (C) 安装轴承 (8) 。



    图 8g01388562

  1. 安装垫片 (5) 。 使用垫片 (5) 实现 0.70 ± 0.60 mm (0.028 ± 0.024 in) 的间隙。

  1. 使用工具 (A) 以便安置中央转向臂 (3) 。 中央转向臂 (3) 的重量约为 34 kg (75 lb)。 安装销 (6) 。 拆下工具 (A) 。



    图 9g01388664

  1. 安装锁 (3) 以接合销 (6) 。



    图 10g01388487

  1. 安装螺栓 (2) ,连接润滑脂软管组件 (1) 。

End By: 安装转向横拉杆。 请参阅 拆解和组装, "拉杆(转向)- 拆卸和安装"。

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