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１．变速器出现有节奏的齿面撞击声（１）故障现象一辆农用运输车挂Ⅳ挡或Ⅴ挡行驶时正常，挂其他挡行驶时变速器出现有节奏的齿面撞击声，变速操纵杆易弹出，且容易跳挡，重载行驶时更加明显。（２）原因检查拆开中间轴承盖检查，中间轴后轴承保持器损坏。（３）原因分析中间
1. Transmission rhythmic tooth surface crash sound (1) Failure phenomenon A agricultural truck hanging Ⅳ block or Ⅴ block when driving normal, hanging the other block when the transmission rhythmic tooth surface percussion sound, the joystick easy to pop up, And easy to jump block, heavy driving more obvious. (2) Cause Check Open the middle bearing cap inspection and the countershaft rear bearing retainer is damaged. (3) the middle of the analysis