69D and 769D Off-Highway Trucks and 771D Quarry Truck Machine Systems Caterpillar


Air Control Valve (Front Brake) - Remove and Install

Usage:

769D 5SS

拆卸步骤

开始:

  1. 释放气罐中的空气。 请参阅拆解和组装, "气罐(制动器)- 排气"。

  2. 从驾驶室上拆下前盖。 请参阅拆解和组装盖, "(驾驶室前部)- 拆卸和安装"。

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

为防止可能的人身伤害,在断开空气系统的任何部件前,释放空气箱压力。


注: 将盖和塞安装在全部孔口上,以免污垢或碎屑进入系统。 清洁度是一项重要的因素。 拆卸步骤开始之前,应彻底清洁部件外部。 这将防止脏污进入内部部件。



    图 1g00559940

  1. 松开将空气导管 (2) 固定至通风口的软管卡箍 (1)。 从驾驶室拆下空气导管 (2)。


    图 2g00559941

  2. 拆下将空气控制阀 (4) 固定至仪表板的两个大圆头螺钉 (3)。


    图 3g00559942

  3. 转动空气控制阀 (4) 90 度,以将空气控制阀 (4) 从仪表板上拆下。


    图 4g00559964

  4. 从空气控制阀 (4) 上断开两个软管组件 (5)。


    图 5g00559966

  5. 在控制阀 (4) 上作识别标记,以便于安装接头组件 (6) 和 (7)。 将接头组件 (6) 和 (7) 从空气控制阀 (4) 上拆下。

安装步骤

  1. 安装之前先核实空气控制阀的所有部件清洁无异物。

  2. 检查所有部件是否磨损,必要时更换部件。


    图 6g00559966

  3. 将两个接头组件 (6) 和 (7) 安装在空气控制阀 (4) 上。


    图 7g00559964

  4. 将两个软管组件 (5) 连接到空气控制阀 (4) 上。


    图 8g00559942

  5. 在仪表板上定位空气控制阀 (4)。 转动空气控制阀 (4) 90 度,以将空气控制阀 (4) 定位在仪表板上。


    图 9g00559941

  6. 安装将空气控制阀 (4) 固定至仪表板的两个大圆头螺钉 (3)。


    图 10g00559940

  7. 将空气导管 (2) 定位在通风口上。 拧紧将空气导管 (2) 固定至通风口的软管卡箍 (1)。

结束:

  1. 将前盖安装至驾驶室。 请参阅拆解和组装, "盖(驾驶室前部)- 拆卸和安装"。

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