一、磨。新购或大修后的拖拉机,要按说明书要求进行磨合,并注意以下4点。 1.听:在磨合过程中,要细听各部发出的声音。如有无金属敲击声等异常现象。 2.看:认真观察排气管排出的气体的颜色,黑、白、蓝色气均属不正常。 3.摸:用手试摸进、排气各支管的温度,从而 First, grinding. After the purchase or overhaul of the tractor, according to the instructions required to run, and pay attention to the following 4 points. 1. Listening: During the break-in process, listen carefully to the voices of ministries. If no metal percussion and other anomalies. 2. Look: Observe the color of the exhaust gas carefully, black, white, blue gas are not normal. 3. Touch: hand touch into the exhaust manifold temperature, thus