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        小型挖掘機輸出功率不足的原因!

        日期:2019-11-28   來源:http://www.qxngd.com/
          小型挖掘機的發動機輸出功率不足。性能如下:運行空時正常運行。
          The engine output power of small excavator is insufficient. The performance is as follows: normal operation at runtime.
          在I、III運行時,節流閥自動回到1150-1250r/min范圍,回到1500-1800r/min,泵壓25Mpa,冒黑煙;空轉速度低,停機排放白煙;燃油回流管過熱。
          During the operation of I and III, the throttle valve automatically returns to 1150-1250r / min, 1500-1800r / min, pump pressure 25MPa, black smoke; idle speed is low, stop and discharge white smoke; fuel return pipe is overheated.
          產生這些問題的原因包括:燃油質量差、燃油壓力低、氣門間隙不正確、汽缸運轉不正常、燃油噴射正時不足、燃油流量不足、進氣系統泄漏、剎車和運轉。活塞桿損壞,渦輪增壓器沉積。
          The causes of these problems include poor fuel quality, low fuel pressure, incorrect valve clearance, abnormal cylinder operation, insufficient fuel injection timing, insufficient fuel flow, intake system leakage, braking and operation. Piston rod damaged, turbocharger deposited.
          按照從簡單到復雜的步驟:首先檢查機油是否合格,并使用合格的燃料。檢查發動機氣缸是否工作正常,各氣缸是否工作正常。檢查回閥,檢查氣門間隙,并檢查進氣閥的寬容發動機氣門間隙檢查燃油壓力是否過低,回油是否過高或返回油壓是否足以調整排氣閥間隙。接下來,根據機器噴油正時和燃油量控制指令調整噴油正時和燃油量。
          Follow the steps from simple to complex: first check whether the oil is qualified and use qualified fuel. Check whether the engine cylinder works normally and whether each cylinder works normally. Check the return valve, check the valve clearance, and check the tolerance of the intake valve engine valve clearance check whether the fuel pressure is too low, whether the return oil pressure is too high or whether the return oil pressure is enough to adjust the exhaust valve clearance. Next, adjust the injection timing and fuel quantity according to the machine injection timing and fuel quantity control command.
        加長臂挖掘機出租
          小型挖掘機發動機水溫較高,經以上檢查后,機器將再次進行測試。當發現i-iii塊工作時,排氣正常,轉速和泵壓低。在第三檔工作時,剎車不動。加注后采用節流閥控制,大型泵的發動機轉速和泵壓增大,但出現黑煙。這可能是由于手動操作的油門控制,導致不均勻加油。再檢查一下剎車。首先,檢查剎車電路。結果正常。拆下剎車,發現里面有灰塵。檢查并清洗零件,安裝檢查過的剎車,然后再對機器進行測試,以確保故障已經消除。然后更換新的剎車,測試機器,觀察各種齒輪,發動機轉速,泵壓,排氣是否正常。
          The engine water temperature of small excavator is high. After the above inspection, the machine will be tested again. When I-III block is found to work, the exhaust is normal, and the speed and pump pressure are low. When working in the third gear, the brake does not move. The engine speed and pump pressure of the large pump increase, but there is black smoke. This may be due to manually operated throttle control, resulting in uneven fueling. Check the brakes again. First, check the brake circuit. The results were normal. Remove the brake and find dust inside. Check and clean the parts, install the checked brake, and then test the machine to ensure that the fault has been eliminated. Then replace the new brake, test the machine, and observe whether various gears, engine speed, pump pressure and exhaust are normal.
          介紹了小型挖掘機發動機產量不足的原因及處理方法,希望對您有所幫助。
          This paper introduces the causes of the insufficient output of small excavator engine and the treatment methods, hoping to help you.

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