Visual Inspection
液压系统和部件的目视检查是诊断故障的第一步。
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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。 |
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机器做检查、保养、测试、调整和修理时，必须小心，不让液体流出。 在打开任何腔室或拆解任何储有液体的部件之前，要准备好用合适的容器收集液体。 有关可提供予卡特彼勒机器的工具及适合于盛装液体的容器，请参阅技术手册, NENG2500, "卡特彼勒工具及车间用品指南"。 按照本地法规和指令处置所有液体。 |
- 检查液压油箱中的油位。 必要时添加机油。 参考操作和保养手册, "液压油箱油位 - 检查"了解更多信息。
- 检查所有机油管路和接头有无损坏和/或泄漏。
- 检查所有泵和接头有无损坏和/或泄漏。
- 巡查到液压油箱和各阀的泵管路。 检查管路有无损坏和/或泄漏。
- 检查液压油箱有无损坏和/或泄漏。
- 在发动机运转的同时，利用机油取样阀采集油样。 检查油样中有无气泡。
- 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。
Caterpillar Information System:
3406E, C-10 and C-12 On-highway Engines 0084-10 Vehicle Speed signal rate of change (36)
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Cold Weather Recommendations for All Caterpillar Machines Before Starting Engine
797B Off-Highway Truck Hydraulic System Operational Checks
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C9 Urban Transit Bus Engine Exhaust Temperature - Test
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3126B and 3126E On-highway Engines 0091-08 Throttle Position Invalid (32)
3406E, C-10, C-12, C-15, C-16 and C-18 On-highway Engines 0091-13 Throttle Position out of calibration (28)
3406E, C-10 and C-12 On-highway Engines 0174-00 High Fuel Temperature Warning (65)
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