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我们在对某新型号装载机进行试验时,发现启动发动机后充电指示灯不熄灭,小时计不计时。随后,对该故障进行了排查,查找出原因后,对该机发动机电路进行了改进。1.充电电路工作原理该装载机充电电路如图1所示。发电机“D+”端分别与小时计的计时信号“C”端和充电指示继电器的吸合回路“86”端连接。将启动开关转到接通挡“ON”后,装载机及充电电路通电,但发动机未运转,发电机不发电。“D+”端无电压输出,小时计不计时,充电指示继电器“86”端无电,其电磁铁无吸
When we tested a new type of loader, we found that the charge indicator does not go out after starting the engine, and hours are not counted. Subsequently, the fault was investigated, find out the reason, the aircraft engine circuit has been improved. 1. Charging circuit works Loader charging circuit shown in Figure 1. The generator “D + ” terminal is connected with the hour counting signal “C ” terminal and the “86 ” terminal of the charging indication relay’s pull-in circuit respectively. Turn the start switch to the ON position “ON ”, the loader and charging circuit is energized, but the engine is not running and the generator is not generating electricity. “D + ” terminal voltage output, the hour meter does not count, charging indication relay “86 ” end without electricity, the solenoid without suction