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手扶拖拉机乱档的主要原因有:操作不当,换档时用力过猛,使主变速杆变形;安装不妥,主变速杆弯曲端头未对正拨叉槽而跑出槽外;导向框板磨损严重,使互锁机构失效;主变速杆球头座、球头及盖配合松动。常用的应急排除乱档的方法有以下4种: 方法一:拧开变速箱盖上的加油管油塞,从那里可看到拨叉的位置(必要时可用手电筒照射),在扶好主变速杆的同时,用大号一字旋具或细长铁棍插入Ⅱ—Ⅲ档拨叉或Ⅰ—倒档拨叉,向左或向右撬动,促使啮合齿轮脱开,拨叉回到空档位置。
The main reasons for walking tractor chaos files are: improper operation, too much force when shifting gear, the main shift lever deformation; improper installation, the main shift lever curved end is not positive fork groove and ran out of the groove; guide frame Board wear serious, failure of the interlocking mechanism; the main transmission ball head seat, the ball head and cover with loose. The commonly used method of emergency gear to eliminate irregularities are the following 4: Method One: Unscrew the gearbox lid on the fuel pipe plug, where you can see the position of the fork (if necessary, flashlight irradiation) At the same time, with a large screwdriver or slender iron rod into the II-III file fork or I-reverse fork, leftwards or rightwards, prompting the meshing gear to disengage the fork back to the empty File location.