The hydraulic pump is one of the important parts of the hydraulic roller. Because of the different use conditions of the roller, the hydraulic parts will inevitably have some small problems, and then the hydraulic pump will be replaced and have problems after the heavy work. After replacing the hydraulic pump, some friends will find that the hydraulic pump they just replaced is still problematic. Today, Hongkai editor will give you a brief introduction to the replacement of hydraulic pump of full hydraulic roller.
Full hydraulic roller
Notes for replacing hydraulic pump of full hydraulic roller:
1. Pay attention to the hydraulic display
After replacing the hydraulic pump of construction machinery, attention should be paid to the hydraulic display, and the pressure display value of the hydraulic circuit should be observed at any time. Check and replace the pressure switch after the hydraulic pump, pay attention to observe the vibration and stability, check whether the hydraulic circuit is abnormal, and solve the problems in time if found.
2. Pay attention to observation in the first three months
After the replacement of hydraulic pump for construction machinery, attention should be paid to the cooperation between the replaced hydraulic pump and various components within three months. Because the newly replaced pump and other parts need a running in period, avoid violent operation as much as possible during operation. In addition, we should also pay attention to the inspection of normal operation conditions and machine parts maintenance, whether the screw is loose, whether the oil temperature is normal, whether there is abnormal increase, whether the hydraulic oil is contaminated rapidly, whether the hydraulic system is weak? Moreover, during the running in period of the hydraulic pump, it is easy to be affected by bubbles and dust, which is easy to produce various problems, which should be solved in time.
3. Pay attention to the change of oil temperature
After replacing the hydraulic pump of construction machinery, do not immediately apply a large load when starting again, especially when it is used in freezing and cold seasons, no load Idling (about 10-30 minutes) is allowed to enter the state before normal loading. In addition, we should also pay attention to the change of oil temperature of high and low polarization, and observe the relationship between oil temperature and external environment temperature. If there is any abnormality, it is easy to judge and solve the problem. After replacing the hydraulic pump of construction machinery, the change of hydraulic oil should be checked regularly, and the deterioration, discoloration and pollution of hydraulic oil should be detected every one or two months, and corresponding solutions should be taken according to the change degree.
4. Pay attention to the sound of hydraulic pump
After replacing the hydraulic pump of construction machinery, pay attention to the sound of the hydraulic pump when it works. Once abnormal phenomena are found, the problem should be found out according to the circuit diagram. Some old hands can directly judge what parts of the hydraulic system have problems through the abnormal sound of the hydraulic system when the hydraulic pump is working, stopped, under high load and high temperature.
