Engine Overspeeds
使用本步骤以诊断和排除发动机超速故障,或如果有以下任何事件代码为现行状态,则使用本步骤。 有关事件代码和这些代码的默认触发点的信息,请参阅故障诊断与排除, "事件代码"。 必须进入 Caterpillar ET(Electronic Technician,电子技师)的监控系统才能查看这些代码的当前触发点。
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事件代码     | ||
---|---|---|
代码和描述     | 产生此代码的状况     | 系统响应     |
E190(1)发动机超速警告     | 在延迟时间内发动机转速持续超过发动机超速触发点。     | 将会启动空气切断阀。 发动机将停机。 必须将动力循环至电子控制模块(ECM)以复位代码。 将会记录该代码。     |
可能原因
- 进气可燃。
- 负荷突然消失
建议的措施
进气可燃
检查周围大气中有无碳氢化合物。 不要在周围大气中含有碳氢化合物的环境中运转发动机。
负荷突然消失
逐渐减少发动机上的负荷。
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