拖拉机起动装置发生故障或在某些特殊情况下，有时需采取牵引起动的方法。有人认为，牵引起动时被牵引机车应挂低档，理由是：这样只要牵引车一起动，被牵引车的驱动轮即使转动很慢，因变速箱里大齿轮反带小齿轮，是增速传动，也可使发动机曲轴获得较高转速而迅速着火。可实际 Tractor starter malfunction or in some special cases, sometimes take the traction start method. Some people think that the towing locomotive should be linked when hanging low gear on the grounds that: as long as the tractor with a car, driven by the tractor wheel even if the rotation is very slow, because gearbox gear with anti-belt pinion, is the growth rate of transmission, Can also make the engine crankshaft speed higher and quickly caught fire. Can be practical