Engine Shutdown Override Occurrence
使用此步骤对以下发动机事件进行故障诊断与排除。
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| 发动机事件 | ||
|---|---|---|
| CDL 代码和描述 | 产生代码的状况 | 系统响应 |
| E085（1）发动机停机超控 | 发动机停机超越开关激活时，任意发动机停机开关激活。(1) 注：停机超越开关激活不会停用因发动机超速状况引发的发动机停机。 |
电子控制模块 (ECM) 将暂停停机开关发送的任何关停发动机的请求。 |
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| (1) | 控制面板通过 CAN 数据链路发送请求可以激活此代码以便执行相关作业。 |
- 发动机停机超越开关激活
- 发动机停机超越开关电路故障
注: 下面以概率的先后顺序列出了这些步骤。 依次完成这些步骤。
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| 故障诊断与排除测试步骤 | 数值 | 结果 |
|---|---|---|
1. 检查代码 A. 将 Caterpillar 电子技师（ET）连接到维修工具接头上。 如有必要，请参阅故障诊断与排除, "电子维修工具"。 B. 在执行任何故障诊断与排除或清除故障诊断代码前，从发动机 ECM 下载"产品状态报告"。 C. 确定指向此步骤的故障诊断代码是否存在。 D. 针对指向此步骤的事件代码，检查有无系统相关的激活的诊断代码。 |
E085 |
结果：存在相关代码。 修理：在继续进行此测试前，诊断并排除所有相关代码。 结果：E085 处于激活状态。 转至下一步。 结果：没有激活的代码 停止 |
2. 启动停机开关 A. 与操作员沟通，确定紧急停机关闭的原因。 |
开关 |
结果：紧急停机启动。 复位停机开关。 确认紧急停机开关的情况得以解决。 通过循环钥匙开关复位控制系统。 结果：紧急停机未启动。 转至下一步。 |
3. 检查停机开关电路 A. 检查停机开关有无振动、潮气或腐蚀引起的损坏迹象。 检查停机开关电路。 请参阅故障诊断与排除, "停机 - 测试"。 |
回路 |
结果：停机开关电路损坏。 修理：诊断并排除故障。 确认修理后故障得到排除。 |
Caterpillar Information System:
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3512C and 3516C Marine Auxiliary Engines Fuel Pressure Is High
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3512C and 3516C Marine Auxiliary Engines Oil Temperature Is High
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3512C and 3516C Marine Auxiliary Engines Intake Manifold Air Pressure Is High
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C13, C15, and C18 Tier 4 Final Engines DEF Line Heater - Test
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C13, C15, and C18 Tier 4 Final Engines Sensor (Data Link Type) - Test
C175-16 Engines for Off-Highway Truck/Tractors Exhaust Has Excessive White Smoke
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C18 Generator Set Refill Capacities