988G Wheel Loader Power Train Caterpillar


Differential and Bevel Gear - Install - Rear

Usage:

988G 2TW

安装步骤

表 1
所需工具    
工具     零件号     零件说明     数量    
A     4C-6486     台架     2    
8S-7615 销     2    
8S-8048 鞍座     2    
8S-7611 管     2    
B     138-7576     连杆支架     3    
C     1U-7234     塞尺     1    



    图 1g00684984

  1. 安装 O 形密封圈 (7) 。



    图 2g00684982

  1. 将工具 (B) 和适当的起吊设备固定到差速器和伞齿轮 (6) 上。

  1. 将差速器和伞齿轮 (6) 装入车桥壳体中。 差速器及伞齿轮 (6) 的重量约为 590 kg (1300 lb)。



    图 3g00684979

  1. 拆下工具 (B) 和相应的起吊设备。

  1. 安装螺栓 (5) 。 将螺栓 (5) 上紧到 230 ± 30 N·m (170 ± 22 lb ft) 的扭矩后再额外上紧 120 度 ± 10 度。



    图 4g00684977

  1. 在销子 (3) 上安装 O 型密封圈 (4) 。

  1. 用机油润滑销子 (3) 和 O 型密封圈 (4) 。 将销 (3) 安装到桥壳中。



    图 5g01147049

  1. 不用垫片安装盖子 (1) 。

  1. 安装螺栓 (2) 。 将螺栓 (2) 紧固到足以去除销 (3) 和盖 (1) 之间的端隙。

  1. 用工具 (C) 以便测量盖子和轴壳体的间隙。 记录这个测量值。 使用该测量值以便确定所需的垫片的正确厚度。

  1. 安装一种厚度的垫片可以在销子 (3) 内设定一个 −0.03 mm (−0.001 in) 的预负载到一个 0.03 mm (0.001 in) 的轴向间隙。



    图 6g00684976

  1. 用所测量值的垫片安装盖子 (1) 。

  1. 安装螺栓 (2) 。 用 105 ± 20 N·m (78 ± 15 lb ft) 的扭矩拧紧螺栓 (2) 。

End By:

  1. 安装后桥上的前耳轴支架。 请参阅 拆解与组装, "耳轴支架(摆动轴,前)- 安装"。
  2. 安装半轴。 请参阅 拆解和装配, "车桥轮轴 - 拆卸和安装"。
  3. 安装后轴。 请参阅 拆解与组装, "摆动轴(后)- 安装"。

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