乱档是工农-12型手扶拖拉机常见故障之一。排除手扶拖拉机乱档,历来都要先拆掉牵引框架或变速箱盖,这种方法不但费时费力,而且单独一人很难完成。下面介绍一种简易的排除方法。如果乱档时同时挂上Ⅱ档和倒档,要先脱开倒档,方法是在变速箱左侧(从拖拉机后方往前看)的 Luan file is a common failure of workers and peasants -12 type walking tractor. Excluding the tractor chaos file, tractor frame or gearbox cover has always been removed, this method is not only time-consuming and laborious, and difficult to complete alone. Here’s a simple way to exclude. If you hang up the second gear and reverse gear at the same time, you must disengage the reverse gear first by looking to the left of the gearbox (looking forward from the back of the tractor)