Engine Overspeeds
使用本程序以诊断和排除发动机超速故障，或者在下列任一事件代码激活时使用本程序。 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。
Show/hide table
| 事件代码 | ||
|---|---|---|
| 代码和描述 | 产生此代码的状况 | 系统响应 |
| E004（3）发动机超速停机 | 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。 |
| E190（1）发动机超速警告 | 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。
Caterpillar Information System:
725C, 725C2, 730C, 730C2 and 730C, 730C2 EJECTOR Articulated Truck Systems Speed Sensor (Torque Converter Output)
2006/10/30 An Improved 192-2962 Oil Cooler Core As Is Now Available {1378}
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3500C Marine Auxiliary Engines ECM - Replace
TA19-M2WD and TA19-M4WD Agricultural Transmissions Transmission Power Flow
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2006/11/06 Improvements to the Water Lines Groups {1380}