C3.3B and C3.8 Engines for Caterpillar Built Machines Caterpillar


Cooling Fan Is Always ON

Usage:

299D3XHP AN9

可能原因

  • 冷却风扇的工作情况

建议的措施

表 1
故障诊断与排除测试步骤  数值  结果 

1. 检查冷却风扇的工作情况

A. 发动机 ECM 未控制风扇。 请参阅机器的测试和调整, UCNR2330。
 

冷却风扇参数
 

冷却风扇工作不正常,请参阅机器的技术规格, UCNR2329。
 

按所列步骤顺序完成以上步骤。

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