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故障现象:一辆停放时间较长的SX2190型柴油牵引车,行驶过程中,中、低速状态时无任何故障现象。当从中速进入高速行驶状态时,发现加速踏板踩到底后,汽车行驶无力,速度提高不明显,达不到最高速度80公里/小时。 故障排除:1.检查油箱,开关处于全开位置,油管没有被压瘪的地方,油箱燃油充足。2.拆开从输油泵到喷油泵间的管路,用手油泵泵油,泵油良好且泵油压力高,说明输油泵工作良好。3.检查燃油滤
Symptom: A parked SX2190 diesel tractor for a long time, without any fault phenomenon during the driving process, middle speed and low speed. When entering the high-speed running state from medium speed, it was found that after the accelerator pedal was in the end, the car was weak and the speed was not improved obviously, reaching a maximum speed of 80 km / h. Troubleshooting: 1. Check the tank, the switch is in the fully open position, the tubing has not been crushed place, adequate fuel tank. 2. Disassemble the pipeline from the oil pump to the injection pump, pump oil by hand, good pump oil and high pump oil pressure, indicating that the oil pump works well. 3. Check the fuel filter