东风-12型手扶拖拉机在需要更换Ⅰ/倒档齿轮时,绝大多数机手或修理工总是按下述繁杂的工序进行操作:拆下操纵手把,打开变速箱盖,卸下右侧盖板,抽出Ⅰ/倒档拨叉轴,取出Ⅰ/倒档拨叉,抽出中间轴或拆下其右端轴承,然后更换Ⅰ/倒档齿轮。这样做是非常麻烦的,下面介绍一种简易的拆装方法。 (1)将主变速杆推到空档位置。 (2)拆下挂接框或旋耕机。 Dongfeng -12 tractor When the need to replace Ⅰ / reverse gear, the vast majority of hand or repairman always follow the following complicated steps: Remove the control handle, open the gearbox cover, remove the right side Remove the I / reverse shift fork, remove the intermediate shaft or remove the right bearing, and then replace the I / O gear. This is very troublesome, the following describes a simple disassembly method. (1) Push the main gear lever to neutral position. (2) Remove the hanging frame or rotary cultivator.