1台ZL50型装载机作业时出现冷却液温度偏高、动力下降和加速不良等现象。停机检查,发现水散热器中冷却液不足。加足冷却液运转2 h后,故障再次出现,并发现水散热器内冷却液又有减少。将水散热器溢水管堵住,准备1根胶管,胶管一端连接水散热器加水口,另一端插入盛有澄清生石灰水的玻璃杯中。启动发动机令冷却液循环,检查发现生 1 ZL50 type loader operation occurs when the coolant temperature is high, power decline and acceleration of poor and so on. Shutdown inspection found insufficient coolant in water radiator. After adding enough coolant to run for 2 hours, the fault appeared again and found that there was a decrease in the coolant in the water radiator. Plug the water radiator overflow pipe, prepare a hose, one end of the hose connected to the water radiator inlet, and the other end into a glass containing clear lime water. Start the engine to circulate the coolant and check to find it