1987年6月的一天,天气晴朗,阳光下温度为摄氏30度。常州新闸乡的一台TC2710小型联合收割机正在紧张地收割着小麦,这台机子从5月31日开割,已夜以继日地工作了150个小时。上午11时许,机手发现收割机仪表盘上的水温报警器一闪一闪地发出了红光,立刻停车、检查,可透明的塑料副水箱里的水一直满到顶,不缺水啊!再起动,红灯居然不闪了。恰好该吃饭换人,继续干,这时红灯又闪,但机手没注意,至下午1时30分,轰的一声,收割机着了火,火苗从发动机罩壳通风口铁丝网里窜出来,机手和装粮手赶紧拿麻袋拍打,忙了一阵,总算把火扑灭了。经检查,发动机水箱盖因焊锡熔化脱落,曲轴箱通气孔盖和通气管、机油盖烧毁,风扇皮带、电线等塑料橡胶件均有不同程度的烧损。经分析,事故是这样发生的。收割机连续工作时间较长,机手只知道清除发动机罩壳丝网上的麦秸杂余,却不知风扇后还有一块专门挡杂余的金属丝网。当这块丝网上糊满了杂余后,发动机通风散热不畅, One day in June 1987, the weather was sunny and the temperature in the sun was 30 degrees Celsius. Changzhou Xinzha Township, a TC2710 small combine harvester is tense wheat harvest, this machine from May 31 cut open, has worked 150 hours night and day. 11 am, the hands of the harvester found on the dashboard water temperature alarm flashing red light, immediately stop, check, transparent plastic water tank has been full to the top of the water, not water shortage ah! Re-start, the red light actually does not flash. It happens that the meal substitutions, continue to dry, then the red light flashed, but the driver did not pay attention to 1:30 pm, the boom was heard, the harvester with the fire, the flames sprang from the hood hood wire fence sprang , The hands and loaded grain hand quickly took sacks, busy for a while, finally extinguished the fire. After examination, the engine water tank cover due to melting off the solder, crankcase vent cover and vent, oil cover burn, fan belts, wires and other plastic rubber parts have varying degrees of burning. After analysis, the accident happened like this. Harvester continuous working time longer, the hands only know the removal of the hood of the straw on the wire mesh impurities, but I do not know the fan there is a special piece to block the remaining metal mesh. When this piece of silk screen full of impurities, the engine ventilation and heat poor,