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HOME > BLOG

Three Common Solutions to Rexroth Variable Piston Pump Pressure Instability

Author:SAIVS Time:2024-09-02 Click:

Rexroth variable piston pumps are essential components in Hydraulic Systems, known for their precision and reliability. However, like any mechanical device, they can experience pressure instability issues, which can significantly impact system performance and efficiency. This article explores three common causes of pressure instability in Rexroth variable piston pumps and offers effective solutions to address them.

1. Hydraulic Oil Quality and Level

Contamination: Impurities, water, or air in the hydraulic oil can lead to pressure fluctuations and reduced pump efficiency. Regularly replace the oil and maintain its cleanliness.

Low Oil Level: Insufficient oil can introduce air into the system, causing pressure variations. Ensure the oil level is within the manufacturer's recommended range.

2. Internal Component Wear and Seals

Wear and Tear: Over time, internal components such as pistons, valves, and seals can wear or become damaged, leading to leaks and pressure instability.

Regular Inspection: Conduct routine inspections to identify signs of wear, such as scratches, grooves, or deformation.

Component Replacement: Replace worn or damaged components with genuine Rexroth parts to maintain optimal performance and compatibility.

3. Control System and Pressure Settings

Control System Malfunctions: Faulty control valves, sensors, or other components can disrupt pressure control. Inspect and calibrate the control system regularly.

Pressure Relief Valve Settings: Incorrect pressure relief valve settings can lead to pressure fluctuations. Adjust the valve according to the system's requirements.

A4vso Series Rexroth Variable Plunger Pump

Common Issues and Solutions

Low Pressure: Check for leaks, oil level, and pressure relief valve settings.

High Pressure: Inspect the pressure relief valve for sticking or excessive settings, and check for system blockages.

Pressure Fluctuations: Consider oil contamination, control system malfunctions, and internal pump wear.

Preventive Measures

Regular Maintenance: Conduct routine inspections, replace hydraulic oil, and replace worn components.

System Cleanliness: Maintain a clean hydraulic system to prevent contamination.

Proper Operation: Adhere to the manufacturer's guidelines to avoid overloading and ensure optimal performance.

Conclusion

By addressing these three common causes of pressure instability, you can significantly improve the performance and reliability of your Rexroth variable piston pump. Regular maintenance, component replacement, and control system adjustments are essential for maintaining optimal hydraulic system operation.

Tag: Rexroth Variable Piston Pump Hydraulic Pump

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