3500E EPA Tier 4 Final and IMO-II/III Switchable Marine Engines Caterpillar


Transmission Oil Temperature Is High

Usage:

3512E MD3
利用本程序对变速箱油温高故障进行故障诊断与排除。 此外,如果以下任一事件代码为激活或记录状态,应使用本步骤。

表 1
J1939 代码和描述  CDL 代码和描述  注释 
177-0
变速箱油温:高 - 最高严重程度(3) 
E877 (3)
变速箱油温高 
变速箱油温在规定延迟时间内高于编程触发点。
记录该代码。 
177-15
变速箱油温:高 - 最低严重程度(1) 
E877 (1)
变速箱油温高 
变速箱油温在规定延迟时间内高于编程触发点。
记录该代码。 
177-16
变速箱油温度:高 - 中等严重程度(2) 
E877 (2)
变速箱油温高 
变速箱油温在规定延迟时间内高于编程触发点。
记录该代码。 

可能原因

  • 代码

  • 机油油位

  • 安全阀

  • 温度

建议的措施

表 2
故障诊断与排除测试步骤  数值  结果 

1. 检查代码

A. 连接 Cat® 电子技师 (ET) 与维修工具接头。

B。 查找与事件代码系统相关的现行代码。
 

代码
 

结果:相关代码为现行状态。

修理:在继续进行此测试前,诊断并排除所有相关代码。

结果:代码激活或被记录。

转至测试步骤 2。
 
2. 检查变速箱油位
 

液位 
结果:变速箱油位正常。

转至测试步骤 3。

结果:变速箱油位高。

修理:排出过多的油。 找出多余油的来源,以进行必要的修理。

如果故障未得到排除,则转至测试步骤 3。
 
3. 检查安全阀

A. 排除所有阻塞。

B。 确认机油安全阀工作正常。
 

安全阀 
结果:安全阀正常。

继续测试步骤 4。

结果:压力安全阀不正常。

修理:修理或更换压力安全阀。

如果故障未得到排除,则转至测试步骤 4。
 
4. 检查变速箱油冷却器的温度。

A. 检查冷却液温度是否过高。
 

温度 
结果:冷却液温度正常。

返回工作。

结果:冷却液温度高。

修理:有关更多信息,请参阅故障诊断与排除, "冷却液温度高"。

确认修理后故障得到排除。
 

如果以上步骤未解决问题,请联系当地 Cat 代理商的技术通信员(TC)。 如需进一步的帮助,您的 TC 可以通过代理商解决方案网络(DSN)与您交谈。

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