One common issue that users may encounter with Rexroth axial piston pumps is a failure to generate the desired pressure in the hydraulic system.
There can be several reasons behind this problem, ranging from incorrect pump settings to mechanical failures within the pump itself.
Firstly, it is essential to check the pump settings and ensure they are properly configured according to the system requirements. The pump's pressure control mechanism, such as a pressure relief valve or a control piston, should be inspected to verify that it is adjusted correctly. Incorrect settings can prevent the pump from building up sufficient pressure.
Secondly, it is crucial to examine the pump's intake conditions. The pump requires an adequate and consistent fluid supply to operate optimally. Insufficient fluid supply due to a clogged intake filter, a restricted inlet line, or aeration of the fluid can result in low pressure output. Cleaning or replacing the filter and removing any restrictions in the inlet line can help address this issue.
Thirdly, internal wear or damage to the pump components can lead to a decrease in pressure generation. The pistons, cylinder block, swash plate, and other critical parts should be inspected for signs of wear, scoring, or leakage. If any components are found to be faulty, they may need to be repaired or replaced to restore the pump's pressure performance.
Furthermore, it is essential to consider the system's load requirements.
If the system demands exceed the pump's capabilities, such as when operating at maximum flow or pressure limits, it may not be able to reach the desired pressure levels. In such cases, upgrading the pump to a higher capacity model or adjusting the system requirements can be considered.
Lastly, proper maintenance and regular servicing of the pump are vital to ensure its optimal performance. Regular oil changes, cleaning of internal components, and adherence to manufacturer's recommended maintenance schedules can help prevent issues that can affect pressure output.
