一台泰山—25型拖拉机,低速运转时正常,中高速时达不到额定转速,而且在加负荷时显得没劲。 开始时机手认为缸套或活塞磨损过度,便自行换了汽缸套、活塞、活塞环后,试车,故障依旧。机手又怀疑故障可能在喷油泵,把油泵拆下来,放到试验台上测试,没有故障。机手只好开车来到农机校。 根据机手的叙述,我认为是发动机供油不足引起的,沿油路检查,发现从柴油滤清器到喷油泵的 A Taishan -25 tractor, low-speed operation of normal, not up to rated speed in high-speed, but also when loading is boring. The beginning of the time that the cylinder liner or piston wear excessive, they changed their own cylinder liner, piston, piston ring, the test, the fault still. The driver also suspects the fault may be in the fuel pump, the pump removed, put on the test bench test, no fault. The driver had to drive to the Agricultural Machinery School. According to the hands of the narrator, I think it is caused by inadequate fuel supply to the engine, along the oil pipeline inspection and found that from the diesel filter to the fuel injection pump