启动困难,是指在环境温度5℃以上,柴油机连续3次以上发动不了。柴油机启动困难常见原因如下。1.蓄电池电量不足。诊断方法:利用机车仪表板上的仪表灯显示亮度判断或万用表进行检测。如没有万用表,可采用鸣喇叭,听声音大小的方法判断,声音小或没有声音,可认为蓄电池电量不足或没电;也可打开机车大灯,看灯光强弱判断蓄电池电量 Difficult to start, refers to the above ambient temperature 5 ℃, diesel engine can not start more than 3 times in a row. Common causes of diesel engine startup difficulties are as follows. 1. The battery is low. Diagnosis: The use of locomotive instrument panel light meter brightness display or multimeter to detect. If there is no multimeter, you can use the honk, listen to the sound size of the method to determine the sound is small or no sound, can be considered lack of battery power or no electricity; can also open the locomotive headlights to see the light intensity to determine the battery power