770 and 772 Off-Highway Truck Hydraulic and Braking System Caterpillar


Visual Inspection

Usage:

770 BZZ

------ 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。


目视检查应当为故障诊断的第一步。 拆卸任何部件前,确保已释放系统压力。 采用以下方式目视检查系统:

  1. 检查软管和管路有无磨损或裂纹。

  1. 检查有无以下流动阻碍:急弯, 安装不当的卡箍, 损坏的软管 和 损坏的管路。

  1. 检查有无松动的接头。

  1. 检查有无损坏的部件。

在确定制动器故障时,首先执行测试和调整, "目视检查"内的步骤。 如果完成目视检查后未找到故障根源,则执行测试和调整, "运行检查"内的步骤。 如果仍不能确定故障所在,执行本手册测试和调整小节内的步骤。

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