机械限位螺钉可调，安全可靠；
刀架上装有限定扣齿刀旋转角度的限位螺钉。
A limiting screw capable of limiting the rotation Angle of the sprocket cutter is arranged on the cutter holder.
试验结果表明，在汽车走合期采用限位螺钉限速装置时，对改善发动机的油耗、排污量都比限速片装置优越。
It is concluded that in the running-in periods using limit screw as the speed-limiting device is better than governor plate for improving the fuel consumption and exhaust emission of the engines.
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