390F Excavator Machine Systems Caterpillar


Swing Gear and Bearing - Install

Usage:

390F B37

安装步骤

表 1
所需工具    
工具     零件号     零件描述     数量    
A     439-3941     连杆支架     4    
B     385-8479     液压泵和马达总成     1    
385-3988 液压扭矩扳手总成     1    
385-4002 扳手连杆     1    
C     154-8874     粘接剂     1    
D     -     Loctite 高柔性 GM     -    
E     -     Loctite C5A 铜制品防咬合剂     -    
F     5P-0960     含钼润滑脂     1    



    图 1g00616248

  1. 将新的防尘密封 (3) 放置在外座圈周围以便确定所需长度。 将新密封切成比所需长度短 1 cm (0.39 in)。 切割密封时成 90 度角。 使用锉刀磨平密封的切割截面。

  1. 使用工具 (C) 将新防尘密封 (3) 安装在外座圈中。 确保在密封的 90 度切割截面上涂抹粘接剂。 安装密封件,使密封唇面对所示的方向。 参考图 1。

  1. 重复步骤 1 和 2,以便将新防尘密封 (4) 安装到内座圈中。

  1. 利用工具 (F) 润滑回转齿轮和轴承。



    图 2g00616242



    图 3g00616310

    (B) 止动块

    注: 清洁底盘机架上回转齿轮和轴承的配合面。

  1. 将工具 (D) 涂敷到底盘机架的回转齿轮和轴承 (1) 的配合面上。 如图所示,将工具 (A) 和适当的起吊设备紧固到回转齿轮和轴承 (1) 。 参考图 2。 回转齿轮和轴承 (1) 的重量约为 1814 kg (4000 lb)。 将回转齿轮和轴承 (1) 置于其在底盘机架上原来的位置。 确保内座圈上的模压 "S" 以所示相对于底盘机架和外座圈上止动块的位置就位。 参考图 3。



    图 4g00616178

  1. 在螺栓 (2) 上涂抹一薄层工具 (E) 。 使用工具 (B) 以便安装将回转齿轮和轴承 (1) 固定到底盘机架的螺栓 (2) 。 拧紧螺栓 (2) 至扭矩为 450 ± 50 N·m (332 ± 37 lb ft)。 额外转动 90° ± 5°。

  1. 安装后,对回转齿轮和轴承 (1) 加装工具 (F) 。

  1. 润滑回转齿轮和轴承。 请参阅操作和保养手册, "保养周期表"。

End By: 连接上部机架和底盘机架。

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