东风4D内燃机车水温高原因及处理方法

Causes and Treatment of Water Temperature of DongFeng-4D Diesel Locomotive

在东风4D内燃机车的运转过程中,水温高是一种常见的故障,如果不及时处理,将会对机车的安全运行造成不利影响。因此,通过对东风4D内燃机车的冷却水系统组成以及作用进行分析,就东风4D内燃机车水温高的原因包括温控阀故障、冷却水泵故障、马达或静液压泵故障进行分析探讨并提出处理方法。

In the running process of DF 4D diesel locomotive, high water temperature is a common fault, if not dealt with in time, it will adversely affect the safe operation of locomotive. Therefore, the composition and function of cooling water system of DF 4D diesel locomotive are briefly described, and the reasons for the high water temperature of DF 4D diesel locomotive include the failure of temperature control valve and the failure of cooling water pump. The malfunction of motor or hydrostatic pump is analyzed and discussed and the treatment method is put forward.