797F Off-Highway Truck Steering System Caterpillar


Center Arm (Steering) - Adjust

Usage:

797F LAJ



图 1g02038320

转向总成的顶视图

(1) 机架转向机

(2) 中心臂




图 2g02038416

转向总成的视图 A-A

(1) 机架转向机

(3) 螺栓

(4) 轴承

(5) 轴承

(6) 螺栓

(7) 底板

(8) 轴承

(9) 触针

(10) 垫片

(11) 顶板




图 3g02038432

转向总成的视图 B

(C) 2 ± 0.5 mm (0.079 ± 0.02 in)




图 4g02038418



图 5g02038456

视图 D-D

(2) 中心臂

(3) 螺栓

(11) 顶板




图 6g02044996

E-E 视图

(2) 中心臂

(6) 螺栓

(7) 底板

  1. 如果检测到中央臂 (2) 发生垂直移动,则必须垫补中央臂 (2) 。 使用以下步骤正确垫补中央臂 (2) 至机架转向机 (1) 。

    1. 确保中央臂 (2) 靠在机架转向机 (1) 的底部。

      注: 请参阅转向系统规范, "转向连杆和油缸安装件",以选择适合的垫片组。

  1. 按照以下步骤正确垫补中央臂 (2) 。

    注: 请勿重复使用螺栓。

    1. 将轴承 (4) 和轴承 (8) 安装在机架转向机 (1) 上。

    1. 将轴承 (5) 安装在中央臂 (2) 中。

      注: 参考图 2 查看轴承 (4) 、轴承 (8) 和轴承 (5) 的安装。

    1. 用 11 颗螺栓 (6) 和硬垫片安装板 (7) 。 O 形圈必须与板 (7) 一起安装。

      注: 调整步骤期间,务必正确支撑中央臂 (2) 。

      注: 两块板的安装将显示必须要垫补的间隙。

    1. 用八颗螺栓 (3) 和硬垫片安装板 (10) 。 O 形圈必须与板 (10) 一起安装。

    1. 根据需要在中央臂 (2) 和机架转向机 (1) 的顶部之间插入垫片 (10) 。

    1. 将螺栓 (6) 拧紧至扭矩 55 ± 10 N·m (40.6 ± 7.4 lb ft)。 拧紧螺栓 (3) 至 28 ± 7 N·m (20.7 ± 5.2 lb ft) 的扭矩。

      注: 请参阅转向系统规范, "转向连杆和油缸安装件",以选择适合的垫片组。

    1. 拆下螺栓 (3 ) 。 拆下板 (10) 。 安装以上确定的垫片 (10) 。 再增加一块薄垫片。

      注: 请勿在最终的垫片组中使用超过两块薄垫片。 如果需要三块薄垫片,用一块厚垫片替代三块薄垫片。

    1. 安装销 (9) 。

    1. 安装螺栓 (3) 、垫片和板 (10) 。

    1. 将螺栓拧紧至扭矩 28 ± 7 N·m (20.7 ± 5.2 lb ft)。

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