硅整流发电机不发电的故障原因多半是激磁电路的故障。如:激磁线圈和集电环的焊接处断开;集电环与碳刷接触不良;碳刷弹簧无力、折断;碳刷磨损严重等。检查硅整流发电机是否发电,千万不要采用直流发电机短路检查法,其检查方法是:①连续起动几次发动机,使蓄电池处于亏电状态,再使发动机至中速运转,观察电流表是否指向正方向,否则就是发电机不发电。②如果已 Silicon rectifier generators do not generate the cause of the malfunction is mostly excitation circuit failure. Such as: excitation coil and collector ring welding off; collector ring and carbon brush poor contact; brushless spring weakness, broken; brush serious wear and tear. Check whether the silicon rectifier generator is generating, do not use DC generator short circuit inspection method, the inspection method is: ① continuous start a few times the engine, the battery in a state of loss of power, and then the engine to run at medium speed to observe the ammeter is pointing Positive direction, otherwise the generator does not generate electricity. ② If yes