论文部分内容阅读
我们在维修挖掘机时,发现很多电气系统故障是由于搭铁不良造成的。本文讲述搭铁不良危害及原因,通过2个实例介绍搭铁不良故障的排查方法,并提出搭铁不良故障的预防措施。1.打铁不良的危害及原因(1)危害搭铁不良会造成电气线路许多显性或隐性故障。在控制电路中,如果ECU模块搭铁不良,会造成ECU模块损坏;在启动电路中,如果启动机搭铁不良,会造成启动机转速缓慢而无法启动,还会造成电枢发热、启动时间过长,导致电枢及启动机烧毁;在照明电路中,
When we repaired excavators, we found that many electrical system failures were caused by poor grounding. This article describes the adverse hazards caused by the ground and the reasons for the adoption of two examples to introduce the investigation of poor ground fault troubleshooting, and put forward the precautions of bad ground fault. 1. Blacksmith adverse harm and reason (1) endangering the bad lead to the electric circuit will cause a number of dominant or hidden faults. In the control circuit, if the ECU module poor grounding, ECU module will cause damage; in the start-up circuit, if the starter is not good, will cause the starter speed is slow and can not start, but also cause the armature fever, start-up time Long, causing armature and starter burned; in the lighting circuit,