C13, C15, and C18 Tier 4 Interim Engines Caterpillar


Alternator Problem - Charging Problem and/or Noisy Operation

Usage:

C18 BDN

可能原因

  • 交流发电机

  • 充电电路

建议的措施

注: 下面以概率的先后顺序列出了这些程序。 依次完成这些程序。

表 1
故障诊断与排除测试步骤     数值     结果    

1. 交流发电机驱动皮带的状况

A. 检查交流发电机驱动皮带的状况。

B. 检查皮带张力。 如果发动机配备自动皮带张紧器,则检查自动皮带张紧器。

过大的皮带张力可能会导致交流发电机损坏。
   

驱动皮带    

结果:交流发电机驱动皮带处理良好状态且皮带张力正确。

继续测试步骤 2。

结果:交流发电机驱动皮带未处于良好状态且皮带张力不当。

如果交流发电机驱动皮带磨损或损坏的话,更换皮带。 有关正确的步骤,请参阅解体与组装。

如有必要,更换自动皮带张紧器。 有关正确的步骤,请参阅解体与组装。
   

2. 交流发电机驱动皮带的状况

A. 检查交流发电机驱动皮带轮的状况。 检查皮带轮中有无驱动皮带磨损造成的深槽。 检查并确认皮带轮螺母没有松动。
   

交流发电机驱动皮带轮    

结果:交流发电机驱动皮带轮发生过度磨损。

更换皮带轮。

结果:交流发电机驱动皮带轮螺母松动。

拧紧螺母。

结果:交流发电机驱动皮带轮未发生过度磨损。

继续测试步骤 3。
   

3. 交流发电机轴承的磨损

A. 检查交流发电机轴承有无磨损迹象。
   

交流发电机轴承    

结果:交流发电机轴承正常。

继续测试步骤 4。


结果:交流发电机轴承异常。

根据需要,修理或更换交流发电机。 有关正确的步骤,请参阅解体与组装。
   

4. 交流发电机或调节器的工作状况

A. 确认交流发电机或电压调节器工作正常。 有关正确的测试程序,请参阅专门说明书, REHS0354, "充电系统故障诊断和排除"。
   

调节器和交流发电机    

结果:调节器和交流发电机正常工作。

继续测试步骤 5。

结果:调节器和交流发电机不正常工作。

根据需要修理或更换交流发电机和调节器。 有关正确的步骤,请参阅拆解与组装。
   

5. 充电电路检查

A. 检查蓄电池电缆、导线和充电电路的连接状况。
   

充电电路    

结果:充电电路不正常工作。

清洁并紧固所有连接。 更换任何损坏的零件。
   

按所列步骤顺序完成以上程序。

如果以上程序未解决问题,请联系您 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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