1. In case of abnormal pump sound, excavator vibration or fault code or alarm displayed on the computer board when the excavator is working, be sure to stop the machine to check whether it is caused by pump fault.
2. When the operating environment temperature of the excavator is very low, it must be idled for more than 10 minutes after the excavator is started. After the excavator temperature comes up, load the excavator to ensure the normal operation of the hydraulic pump of the excavator.
3. During the normal operation of the excavator, you must always pay attention to whether the hydraulic oil temperature of the excavator is too high? Is the excavator water temperature too high?
4. When the excavator hydraulic pump is first used, pay attention to whether the pump has abnormal noise? Because it is easy to be affected by bubbles and dust at the beginning of operation, poor lubrication or overload conditions at high temperature, so that the hydraulic pump makes abnormal noise.
5. Always pay attention to the value displayed on the pressure gauge of the hydraulic circuit of the excavator.
6. Understand the functions of various valves in the excavator hydraulic pump system.
7. When replacing the pump, pay attention to whether each filter screen in the oil circuit in the hydraulic system of the excavator is blocked.
8. The excavator shall regularly check the use of hydraulic oil, and basically analyze whether the excavator hydraulic oil is deteriorated, discolored and polluted every one or two months.
9. Pay attention to whether the hydraulic device piping works normally. After running for a period of time, check whether there is oil leakage and whether the piping is loose.
10. During the operation of the new excavator, check the operation conditions, such as the maintenance of parts, whether the screws are loose, whether the oil temperature rises abnormally, whether the hydraulic oil deteriorates quickly, and whether the service conditions meet the regulations.
