一辆双力牌三轮农用运输车,在拉运货物行驶中,出现了忽快忽慢的现象。机手多次检查,得知供油系正常。打开齿轮室检查,发现调速支架钢球槽有一处磨损,使钢球不能同时回位,从而产生忽快忽慢现象。为此,将调速齿轮和支架取下,换上新的钢球槽,该机转速恢复正常了。一辆飞毛腿牌四轮 A Shuangli brand three-wheeled agricultural vehicles, in pulling the goods traveling, there was a sudden and slow phenomenon. Multiple checks by hand, that the normal oil supply system. Open the gear room inspection and found that there is a ball mill slot speed control bracket wear, so that the ball can not be returned at the same time, resulting in sudden and sudden phenomenon. To this end, the speed control gear and brackets removed, put on a new steel ball slot, the machine speed back to normal. A scudo four rounds