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1.一台铁牛—55机车正在田间作业,突然在机体上部靠高压油泵一侧,有气门“嚓、嚓”的窜气声且伴有沉闷的“哐哐”撞击声.驾驶员依次对气门间隙,空气密封性能和喷油器压力进行了检查调整,故障现象仍未消失,最后通过检查发现是二缸摇臂座底部断裂,更换摇臂座后,故障排除.2.一台铁牛—55机车在伏耕地进行赤地开沟,突然发动机中上部有清脆的“(口当)(口当)”敲击声,气门室通气孔处有大量白蒸气溢出,排气管冒黑烟,油底加油口处喷机油.驾驶员立即熄火将车拖到修造厂拆检,其故障原因是:三缸活塞从销孔处断开,活塞销亦从中间断开,二、四缸活塞亦出现裂纹.更换活塞
1. An iron cattle -55 locomotive is working in the field, suddenly in the upper part of the body by the side of the high-pressure pump, valve “click, click” channeling sound and accompanied by dull “哐 哐” percussion driver in turn Valve clearance, air sealing performance and injector pressure were checked and adjusted, the phenomenon has not disappeared, and finally found that the bottom of the two-cylinder rocker arm rupture, replace the rocker arm seat, troubleshooting .2. -55 locomotives in the red field ditch furrows, and suddenly the engine has a crisp “upper part of the mouth (mouth)” percussion sound, the valve room vent a large number of white steam overflow, the exhaust pipe black smoke, The oil refueling port at the end of the engine oil. The driver immediately turn off the car towed to the repair shop demolition seized, the fault reason is: three-cylinder piston off from the pin hole, the piston pin is also disconnected from the middle, two or four-cylinder piston Cracks occur. Replace piston