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Tips for replacing hydraulic oil in construction machinery
source:Industry News release time:2021-04-10 Article author:Rosit Popular:Air band saw
There are many hydraulic components on construction machinery, and sufficient hydraulic oil is required. When the hydraulic oil needs to be replaced due to deterioration due to long use, some people mistakenly believe that it is only necessary to drain the oil in the hydraulic mailbox and fill up with new hydraulic oil. However, there are still many old hydraulic oils left in the hydraulic oil pipes and hydraulic control valves at this time. The mixed use of new and old oils when the equipment is used will speed up the deterioration of the new oil.
The correct oil change procedure is to first drain the hydraulic oil in the hydraulic mailbox, clean the oil tank and add new hydraulic oil, then remove the circuit header, start the engine and run in a sluggish manner, make the oil pump work, operate each mechanism separately, and rely on the hydraulic oil. The old oil in the circuit is discharged one by one until new oil flows out from the oil return main pipe. Finally, connect the oil return main pipe to the oil tank and add new hydraulic oil to the oil tank to the specified position.
Of course, this kind of oil change also has its drawbacks. Let’s talk about the loader with pilot. When the oil is changed like this, the pilot oil pressure is 35 kg at idling speed. Just the engine, the pilot oil (that is, the newly changed oil) will arrive. If you have the oil return pipe, it is not necessarily enough to prepare 3 large barrels of hydraulic oil. In addition, there is not only one oil return pipe, which needs to be removed one by one, which is very troublesome to do one by one.
As the saying goes: "Knife sharpening does not cut woodwork by mistake", friends, don't be afraid of trouble! Imagine that although the oil change is a bit slow, it depends on the specific model and situation, but it takes up to half a day to a day to do so. How much money can this equipment make on this day? If a component is damaged due to dirty oil, how much silver will be consumed for spare parts only in addition to maintenance man-hours and costs? This is definitely not alarmist!
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