G3600 Engines Caterpillar


Coolant Flow Is Low

Usage:

G3606B 4ZS

可能原因

  • 冷却液液位低

  • 水泵故障

  • 后冷器阻塞

  • 冷却液流量不足

  • 冷却系统中堆积结垢

建议的措施

检查冷却液液位并检查冷却系统有无泄漏

检查冷却液液位。 如果冷却液液位太低,检查冷却系统有无泄漏。

如果冷却液液位太低,加注冷却系统。 如果发现泄漏,进行必要的修理。

水泵

拆下水泵进行检查。 请参阅拆解和组装, "水泵 - 拆卸"。 如有必要,维修水泵。

后冷器

如果流经后冷器的冷却液流被堵塞,清洁后冷器芯。

检查冷却液流量

在发动机不运转时,使用 Caterpillar 电子技师(ET)观察水套水出口的压力。 然后在发动机运转时,观察读数。

如果读数不合理或读数不在技术规范内,在水套水出口靠近压力传感器处安装压力表。 将仪表读数与 Cat ET 读数相比较。

如果出自比照仪表的读数与 Cat ET 的不一致,更换压力传感器。

如果出自比照仪表的读数与 Cat ET 的基本一致,检查以下部件:

  • 检查水温调节器是否正常工作。

  • 检查散热器或热交换器是否堵塞。

  • 检查水泵叶轮有无损坏。

进行必要的修理。

水垢沉积

排空冷却系统。 清洁冷却系统。 给冷却系统加注新冷却液。 适当地保养冷却系统。 有关说明,请参阅发动机的操作和保养手册, "冷却系统冷却液(DEAC)- 更换"。

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