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1988年秋季,我队一台JD-4450型轮式拖拉机在通过一个小坑时,颠簸了一下,发动机突然熄火了。驾驶员起动多次,发动机均不着火。起初我们误认为是蓄电池电压不足所致,更换上符合要求的蓄电池后,发动机仍不能着火。当用专用工具转动飞轮时,可听到离合器室内有异常响声,且转动几圈后,飞轮被卡死,即飞轮不能转动。当我们拆下离合器后,发现离合器压盘
In the fall of 1988, a JD-4450 wheeled tractor on our team jolted through a pit and the engine suddenly stopped. The driver started several times, the engine is not on fire. At first we mistakenly believe that the battery voltage is insufficient, the replacement of the battery meets the requirements, the engine still can not catch fire. When using special tools to rotate the flywheel, you can hear an abnormal noise in the clutch chamber, and after a few turns, the flywheel is stuck, that is, the flywheel can not rotate. When we remove the clutch, we found the clutch pressure plate