一台新买的东方红-70T型推土机在磨合过程中,驾驶员发现柴油机的机油温度比水温还要高。仔细观察,排气管没有烧机油迹象,机油压力在正常范围内;拔出机油尺查看,油面接近上刻线,机油的颜色也正常;用手触摸机油散热器进、出油管,温度不高,而柴油机机体却十分烫手。原来机车出厂时机油滤清器上冬夏转换开关的箭头是指向 A newly purchased Dongfanghong-70T bulldozer in the run-in process, the driver found that the diesel engine oil temperature even higher than the water temperature. Careful observation, the exhaust pipe is not burning oil signs, the oil pressure within the normal range; pull out the oil dipstick view, the oil surface close to the engraved line, the color of the oil is normal; touch the oil radiator into the oil pipe, the temperature is not High, while the diesel engine body is very hot. The original locomotive when the oil filter on the winter and summer switch arrow is pointing