776D Wheeled Tractor and 777D and 777D HAA Off-Highway Trucks Power Train Caterpillar


Tire and Rim (Rear) - Remove

Usage:

777D 2YW

拆卸步骤

表 1
所需工具    
工具     零件号     零件说明     数量    
A     4C-5809     液压泵     1    
9U-7536 起吊台架(55 吨)     2    
B     8S-9906     棘轮拉拔器     1    

开始:

  1. 安装车轮楔子。 请参阅拆解和组装, "车轮楔子(前/后)- 拆卸和安装"。

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

按照建议的步骤拆卸和安装轮胎和/或车轮组件。

确保始终正确支撑住机器以及轮胎和/或车轮组件。

采用不正确的步骤拆卸和安装轮胎和/或车轮组件可造成人员伤亡。


注: 图中所示为拆卸外部轮胎和轮辋。 请参阅该步骤以拆卸内部轮胎和轮辋。




    图 1g01327120

  1. 将工具 (A) 放置在机器后部下方。 采用工具 (A) 起吊机器后部,直到后部轮胎升离地面。



    图 2g01327237

  1. 拆卸固定轮胎和轮辋的 20 颗螺母 (1) 和垫圈 (2) 中的 18 颗。

    注: 保留位于轮辋相对侧的两颗螺母 (1) 和垫圈 (2) 。




    图 3g00702595



    图 4g01327157

  1. 将升降机放置在轮胎和轮辋下面。 采用工具 (B) 适当的吊索将轮胎和轮辋固定在升降机上,如图所示。



    图 5g00540960

  1. 还可采用轮胎装卸机拆卸轮胎和轮辋,如图所示。

  1. 从轮胎和轮辋拆卸两颗剩余的螺母 (1) 和垫圈 (2) 。 拆卸轮胎和轮辋。 轮胎和轮辋的重量约为 1950 kg (4300 lb)。



    图 6g01327150

  1. 从车轮拆卸螺栓 (3) 、垫圈和盖 (4) 。



    图 7g01327251

  1. 在轮胎和轮辋组件上作识别标记,以便于安装。 从轮胎和轮辋组件拆卸 14 颗螺母 (5) 和垫圈 (6) 中的 12 颗。



    图 8g00557878

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

    如果未能将内部轮胎和轮辋固定至升降机立柱就将其从车轮组件完全拆下,可出现严重伤亡。

    为避免由于挤压出现的伤亡,应将内部轮胎和轮辋固定至升降机后,再将其从车轮组件拆下。


  1. 定位升降机,使叉具位于轮胎和轮辋组件下面。 采用适当的挡块并将吊索绕在轮胎和轮辋组件周围,以将轮胎和轮辋组件固定在升降机上。 拆卸剩余的两颗螺母 (5) 和垫圈 (6) 。 重新将轮胎和轮辋组件定位在车轮组件外侧。

  1. 重新定位升降机,使叉具位于轮胎和轮辋组件下面。 重新将吊索绕在轮胎和轮辋组件周围,并将吊索固定在升降机上,如图所示。 拆卸内部轮胎和轮辋组件。 内部轮胎和轮辋组件的重量约为 1950 kg (4300 lb)。

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