有不少农机手在驾驶拖拉机时,经常会发现油底壳内机油上涨的现象,这种现象一般是由阻水圈漏水所致。(1)阻水圈漏水的原因。阻水圈漏水的原因主要有2点。①发动机长期在水温高的情况下工作,致使阻水圈早期老化,失去密封作用。②维修保养中抽活塞时,没有先将汽缸套上部的积炭刮除,而是猛推活塞带着汽缸套移动,导致阻水圈装配位置变化,密封性能被破坏而漏水。(2)阻水圈漏水的预防。为了延长阻水圈的使用寿命和保持其 There are many agricultural hand driving the tractor, the oil pan within the oil often found the phenomenon of rising, this phenomenon is generally caused by the water ring leak. (1) Water blocking ring leakage reasons. Water blocking ring leakage mainly due to 2:00. ① engine long-term work in the case of high water temperature, resulting in early obstructing ring aging, loss of sealing effect. (2) During maintenance, when the piston is not pumped, the upper part of the cylinder liner is not scraped off but the piston rod is pushed by the cylinder liner to move, resulting in the change of the position of the water blocking ring assembly and the sealing performance being damaged and leaking. (2) Blocking ring to prevent water leakage. In order to extend the service life of the water blocking ring and maintain it