770 and 772 Off-Highway Truck Steering System Caterpillar


Visual Inspection

Usage:

770 BZZ
转向系统和部件的目视检查是故障排除的第一步。

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

如果有人被困在车轮和车架之间,可能会发生人身伤亡。

转向系统由液压控制,运动时,车轮可能挤压人员。

当在车轮和车架之间工作时,一定要小心。 如果必须转向车轮,在进行任何移动前,确保所有人员远离机器。


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

不得用手检查有无渗漏。 针孔(非常细小)渗漏可能会导致软管附近出现高速油流。 这种机油可以穿透皮肤,造成个人伤害。 使用纸板或纸张定位销孔渗漏。


  1. 检查所有油管和接头有无损坏。

  1. 检查泵和接头有无损坏和泄漏。

  1. 巡查到油箱和各阀的泵管路。 检查管路有无损坏和泄漏。

  1. 检查油箱有无损坏和泄漏。

  1. 检查油箱的油位。



    图 1g01268155

    (1) 转向油取样阀

  1. 转向油取样阀位于转向泵箱体排油滤清器的回油管路上。 在转向停用阀上可以够到此取样阀。

    注: 取样应当在发动机处于低怠速且机器未转向时进行。 油样将缓慢注入。 确保油样以正常方式注入。

  1. 拆下滤清器滤芯。 检查滤芯从油中滤除的杂质微粒。 磁铁将铁颗粒与非铁颗粒(活塞环、O 形圈或密封)分开。

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