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(1)一手扶拖拉机起动后,小油门时机油压力指示器浮标升起,用手向下压,浮标下沉,说明机油压力正常。但加大油门时,浮标反而下沉,机油压力逐渐消失。停车检查,润滑系统无渗漏,机油泵工作正常。后经详细检查,发现集滤器滤网变软,加大油门时,机油泵吸力增加,将滤网上的中心塞吸住,从而堵塞进油孔,使机油无法进入机油泵,造成机油压力指示器浮标升不起来。
(1) After a tractor starts, the oil pressure buoy rises when the small throttle is pressed down by the hand and the buoy sinks, indicating that the oil pressure is normal. But increase the throttle, the buoy instead sink, the oil pressure gradually disappear. Parking inspection, lubrication system without leakage, the oil pump is working properly. After a detailed examination and found that the filter strainer set becomes soft, increase the throttle, the pump suction increases, the center plug on the filter sucked, thus blocking the oil hole, the oil can not enter the oil pump, causing the oil pressure indicator Buoy can not rise.