The reason of small concrete pump truck oil temperature too high

We use a small concrete pump to work when sometimes encounter the oil temperature rise quickly, very high, and it was found unable to pump commutation failure to solve this problem we must first analyze its reasons, experienced drivers master should be aware that this situation is mostly caused by the hydraulic system leak. Well, we are going to talk about it on the specific troubleshooting methods:
We can check the hydraulic pressure of the oil outlet for this failure, if pressure is normal on the import and export and then measuring the accumulator pressure, if the pressure is low, then the accumulator air bag has been broken, replace the accumulator If the test machine fault still exists, you can check the oil between the pump and the accumulator, since between the pump and the accumulator is not compromised,Therefore only possible within the one-way valve between the pump and the accumulator vent lead to temperature rise, reversing weakness. Just down within a period of time, be able to hear the pressure oil unloading "hissing" sound, you can open a one-way valve, you will find the sealing surface of the valve is badly worn, and the hydraulic oil cloudy, with a slight emulsification. You can now replace the check valve and hydraulic oil after the test machine, you can find Tuobeng return to normal.
The current small pump products, most with a 1-2 or hydraulic oil table, a whole oil, a branch table. Then with the oil temperature table, when found in the mailbox of the hydraulic oil increases, often need to determine the cause of the failure to use the above exclusion, despite the exclusion of time required is also not a lot. But at the construction site, as early as one minute if you can solve the problem, the construction unit, is to reduce the losses and increase the benefits.