793F and 793F XQ Off-Highway Truck Fast Fill Service System Caterpillar


General Information

Usage:

793F D3T

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

机器突然移动或释放气压或油压,可能对机器上或机器附近的人员造成伤亡。

为避免可能造成的伤亡,在测试和调整液压系统之前,遵照以下程序。


注: 机器上仅允许停留一位操作员。 让其他所有人员远离车辆或离开操作人员的视野。

  1. 把机器开到平整水平的地方。 把机器开到远离其他机器的地方。 把机器开到远离其他人员的地方。

  1. 把变速箱操纵杆移到停车位置。 停止发动机。

  1. 启动停车制动器。

  1. 车轮前后都塞上车轮挡块。 请参阅拆解和组装, "车轮楔子(前和后)- 拆卸和安装"。



    图 1g01561449

    与卸载车斗连接的固定电缆。

  1. 如有必要抬起卡车的卸载车斗,将固定电缆与卡车后部连接。 请参阅拆解和组装, "卡车车斗固定缆绳 - 拆卸和安装"。

  1. 确保变速箱控制装置处于停车位置。

  1. 在任何接头、软管或者部件上工作之前,确保释放所有机油压力。 请参阅测试和调整, "系统压力 - 释放".

目视检查是故障诊断与排除的第一步。 目视检查会确定可以快速修正的故障。

由于可能难以进行故障诊断与排除,所以在维修手册上列出了可能故障的列表。 为了维修某个故障,请参阅测试和调整, "故障诊断与排除部分"所列出的故障和可能原因。

问题和可能的原因的列表仅给出存在可能问题的指示,和可能需要修理的指示。 有时候,可能需要列表中建议以外的更多修理或其他修理。 请记住:一个故障通常不会仅仅由单个零件引发。 故障通常由某个零件与其它零件之间的关系引起。 此列表无法提供所有可能的问题和可能的原因。 维修人员必须要找到问题所在和问题的源头。 然后维修人员必须进行必要的修理。

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