拖拉机的电气系统主要是用作发动机的起动、拖拉机的照明、信号等,在某些拖拉机上还用于起动机的点火,如东方红-28,东方红-75拖拉机的起动机。根据使用要求不同、国产拖拉机的电气系统有两种类型:一种是由发电机和灯所组成的照明系统,如东方红-75,东风-12型拖拉机;一种是由发电机、蓄电池、起动设 Tractor electrical system is mainly used for starting the engine, tractor lighting, signals, etc., in some tractors is also used for starting the ignition, such as the Oriental Red -28, Oriental Red -75 tractor starter. According to the different requirements, there are two types of domestic tractor electrical system: one is a lighting system composed of a generator and a lamp, such as Dongfanghong-75 and Dongfeng-12 tractor; the other is a generator, a battery, Start set