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当起动机开关推杆调整不当时,至使起动机齿轮与飞轮齿圈进入啮合前,起动机已开始旋转,造成二者的冲击啮合,从而引起飞轮齿圈的剧烈磨损。如果齿圈整个元周任一处与起动机齿轮进入啮合的几率相等,则磨损将均匀地分布在整个齿圈元周上,这一情况是建立在假设发动机每次停车时曲轴可以停止在任意角位置的前提下,但绝大多数飞轮齿圈的磨损总是集中在齿圈元周的一处或几处(如图1中k所示)。对于直列六缸四行程发动机(如CA—10B
When the starter switch push rod adjustment is not properly adjusted, until the starter gear and flywheel ring gear into engagement, the starter has begun to rotate, resulting in the impact of the two meshing, causing the flywheel ring to severe wear and tear. If the entire perimeter of the ring gear with the starter gear meshing into the same probability, the wear will be evenly distributed throughout the ring gear perimeter, this is based on the assumption that the engine every time the crankshaft can be stopped at any Angular position of the premise, but most of the flywheel ring gear wear is always concentrated in one or more ring gear perimeter (as shown in Figure 1 k). For inline six-cylinder four-stroke engines (such as CA-10B