The hydraulic pump is the source of power for the whole working system. If there is a problem, it will slow down and work inefficiently. The excavator will work inefficiently. If it is serious, the components in the hydraulic pump will be damaged seriously, and the whole machine will not act. The severe wear of excavator hydraulic pump has a fatal impact on the excavator. What are the reasons for the failure of excavator hydraulic pump?
(1) Internal leakage of boom cylinder
The simplest maintenance method for excavator hydraulic pump is to raise the boom to see if it has obvious free fall. If the drop is obvious, disassemble the oil cylinder for inspection. If the seal ring is worn, replace it.
(2) Control valve
First, clean the safety valve, check whether the valve core is worn, and replace it if worn. If the safety valve is still unchanged after installation, check the wear of the control valve core, and replace it if the wear is serious.
(3) Hydraulic pump pressure
If the pressure is too low, adjust it. If the pressure still cannot be adjusted, the hydraulic pump is severely worn.
Relevant reading: the owner must have the knowledge of hydraulic pump maintenance.
When troubleshooting, be careful. Don't ignore the details of the fault. Some simple causes of the fault are often ignored when troubleshooting.
