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挖掘机更换液压油需要什么准备工作

日期:2019-04-01   来源:
  挖掘机出租日常维护过程中偶尔会遇到要更换液压油的问题,更换液压油并不简单,需要掌握一定的方法。下面就简单介绍下更换液压油的准备工作。
  During the daily maintenance of excavator rental, the problem of replacing hydraulic oil is occasionally encountered. Replacing hydraulic oil is not simple, and a certain method needs to be mastered. The following is a brief introduction of the preparation for the replacement of hydraulic oil.
  1、购买整车液压系统用的油。(液压油箱容积的2。5倍),滤芯,洗油,3公斤面粉,绳子,封闭液压油管的油堵,(按换油的挖掘机上的油管配制)一台汽泵和大小空油桶等。准备一台正常的挖掘机。将换油的挖掘机动臂抬升到最高点,斗杆及铲斗收到内点后发动机熄灭(动臂缸,斗杆缸和铲斗缸的缸杆全部伸出到顶点)。
  1. Purchase oil for hydraulic system of vehicle. (Hydraulic tank volume 2. Five times), filter element, washing oil, 3kg flour, rope, oil plug of closed hydraulic tubing, a steam pump and empty oil barrel of size, etc. Prepare a normal excavator. Lift the arm of the oil-changing excavator to the highest point, and the engine will be extinguished when the bucket bar and bucket receive the interior point (all the cylinder bars of the boom cylinder, bucket cylinder and bucket cylinder reach the apex).
  2、液压油箱的清洗:将箱内的液压油全部放出,撤出液压滤芯,把泵和油箱之间的管路从泵的接口处拆开,放出管路内的油液。用洗油冲洗液压油箱和管路。用医用沙布把液压油箱内部擦净。将面粉揉和到能拉伸面的程度分成三份,用面团分三次粘干净液压油箱的里面尤其是油箱的边角处和滤芯筒。
  2. Hydraulic tank cleaning: all the hydraulic oil in the tank is discharged, the hydraulic filter element is withdrawn, and the pipeline between the pump and the tank is dismantled from the interface of the pump, and the oil in the pipeline is discharged. Flush the hydraulic tank and pipeline with washing oil.  Clean the inside of the hydraulic tank with medical sandcloth. The flour is kneaded and stretched into three parts. The inside of the hydraulic tank, especially the corners of the tank and the filter cartridge, is cleaned three times with the dough.
  日常作业过程中偶尔会遇到挖掘机加长臂小臂动作慢的情况发生,出现此种情况的原因是什么呢,可以从一下几个方面来考虑。
  Occasionally, in the course of daily operation, the slow movement of the elongated arm of excavator occurs. What is the reason for this situation? We can consider it from the following aspects.
  1、大臂与小臂无法抬起跟外伸,此故障基本上是大臂跟小臂的曲轴传感器损坏,此传感器功能相当于一个普通电位器,用于感知工作臂的角度,防止过度操作发生倾翻或碰撞
                         长臂挖掘机
  1. The upper arm and the lower arm can not lift and extend. This fault is basically caused by the damage of crankshaft sensor of the upper arm and the lower arm. This sensor functions as a common potentiometer to sense the angle of the working arm and prevent overoperation from overturning or collision.
  2、如果传感器出现故障或线路搭铁短路有问题,就会引起上述故障的出现,这个传感器不易购买,解决方法是用两只电阻来代替传感器同样可以使挖掘机能正常工作,不过会失去保护功能。
  2. If the sensor fails or the line is short-circuited, the above-mentioned failures will occur. The sensor is not easy to purchase. The solution is to replace the sensor with two resistors, which can also make the excavator work normally, but will lose the protection function.

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