793F CMD Off-Highway Truck Hydraulic Fan and Steering System Caterpillar


Front Axle - Install and Adjust

Usage:

793F D3T



图 1g01469528

(1) 撑杆

(2) 垫片

(3) 盘

(4) 螺栓

(5) 螺栓

  1. 4C-5593 防粘结剂 涂覆在撑杆 (1) 的锥面上。 将轴组装到撑杆 (1) 上。 安装板 (3) 。 使用间隔 120 度的三颗螺栓 (4) 和垫圈来安装板 (3) 。 此时请勿使用垫片 (2) 。 拧紧螺栓 (4) 至 203 ± 27 N·m (150 ± 20 lb ft)。

  1. 在板 (3) 的三个螺纹孔上使用深度千分尺。 测量从撑杆 (1) 末端到板 (3) 外表面的距离。 记录测量结果的平均值。

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

    处置支撑杆比较危险,可能会造成人员伤亡。

    拆卸板组件时,突然从支撑杆上释放心轴或者螺栓突然折断,可能会造成人身伤害。

    将所有螺栓每次旋松半圈,如此循环来拆卸板组件。 重复执行此操作,直到螺栓扭矩得以释放。


  1. 拆下螺栓 (4) 、垫圈和板 (3) 。 在进行上一次测量的螺栓孔附近测量板 (3) 的厚度。 计算板 (3) 的平均厚度。

  1. 安装垫片组 (2) 。 为了确定垫片组厚度,从步骤 2 和步骤 3 的平均测量值的差中减去 8.60 ± 0.03 mm (0.339 ± 0.001 in)。

    注: 垫片组厚度必须小于 0.64 mm (0.025 in)。

  1. 安装垫片 (2) 、板 (3) 和螺栓 (4) 。 将螺栓 (4) 上紧到 1800 ± 200 N·m (1328 ± 148 lb ft)。

    注: 进行这些步骤之后,垫片 (2) 和板 (3) 之间的间隙应为 0.00 至 0.13 mm (0.000 至 0.005 in)。

  1. 将螺栓 (5) 上紧到 800 ± 50 N·m (590 ± 40 lb ft)。 将螺栓 (5) 额外拧紧 120° ± 5°。

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