Symptom Troubleshooting
当对症状进行故障排除时,请遵循以下准则。
了解机器的工作情况。 了解该症状是正常的工作特性还是故障。
阅读系统操作信息以便了解机器系统。 了解机器系统的相互作用。
向操作员了解症状情况。 检查机器,查看有无故障。 注意空气中任何异常气味。 倾听有无异常噪音。 需要以下信息:
- 发生故障前机器的性能
- 症状的第一次出现
- 发生故障时的工作状况
- 发生故障之前的事件顺序(发生顺序)
- 所采用的故障诊断和排除的步骤
- 机器修理历史记录。
- 机器预防性保养
- 与该机器序列号和当前故障的相关维修信息
执行"目视检查"步骤。
可能时,试着重现症状。 运转机器并再现引起故障的工况。 检查驾驶室仪表。 注意空气中任何异常气味。 倾听有无异常噪音。
确认 ECM 是否检测到故障。 诊断代码指明各个检测到的故障。
利用从操作员和您检查时获得的信息。 如果有多个症状,尝试确定一个通常原因。
如果对诊断代码进行故障排除后未能解决故障,使用本手册的"症状的故障诊断和排除"章节继续进行故障排除。 确定最有可能引起该症状的部件。
使用本手册中的测试和步骤来确定症状的原因。 一旦确定症状原因,修理故障。 再次测试系统以便确认症状已排除。
与 Caterpillar 共享您的故障排除信息。 使用 "SIS" 或 "CBT" 中的反馈表格填写有关故障症状、测试和修理的简单描述。 请附上您的电话号码或电子邮件地址,以便与您联系。 该反馈信息有助于 Caterpillar 改善服务信息。
Caterpillar Information System:
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