A10VSO140DR/32L-VPB22U00 A10VSO140DG/32L-VPB32U00 A10VSO180DG/32L-PPB32U00 Rexroth Mechanical Engineering Equipment Variable Piston Pump Imported from Germany

Proper installation is critical to avoid premature failure. Follow these key guidelines:

• Mounting Position: Install the pump horizontally (drive shaft parallel to the ground) to ensure proper lubrication. Vertical mounting (drive shaft upward) is allowed but requires a minimum oil level in the reservoir to prevent cavitation.
• Drive Connection: Use a flexible coupling (e.g., jaw coupling) to align the pump drive shaft with the motor shaft (misalignment ≤0.1 mm radial, ≤0.2 mm axial). Avoid using belts or chains, which cause excessive shaft stress.
• Suction Line Requirements: The suction line diameter must be ≥ the pump's suction port diameter; keep the line as short as possible (≤1.5 meters) with minimal bends. Ensure the suction filter has a flow capacity ≥1.5x the pump's maximum flow (filtration precision 100 μm).
• Discharge Line Installation: Install a pressure gauge and relief valve (set to 10% above the system's maximum operating pressure) in the discharge line. Use flexible hoses near the pump to absorb vibration.
• Reservoir Ventilation: The hydraulic reservoir must have a breather filter (ISO 16/13) to prevent contamination and maintain atmospheric pressure.

Commissioning should be conducted by qualified technicians in a step-by-step manner to ensure safe and optimal operation:

• Pre-Commissioning Check: Verify all connections (mechanical, hydraulic, electrical) are secure and correctly aligned.
• Check the hydraulic reservoir oil level (must be 20-30% above the suction port) and fluid quality.
• Ensure all valves (suction, discharge, relief) are in the open position.
• Priming the Pump: Loosen the air bleed screw on the pump's discharge port.
• Manually rotate the pump drive shaft 5-10 times (using a wrench) to fill the pump with oil and expel air.
• Tighten the air bleed screw once oil flows out without bubbles.
• Initial Start-Up: Start the motor at low speed (500-1000 rpm) for 1-2 minutes.
• Check for abnormal noise, vibration, or oil leaks. Stop immediately if any issues are detected.
• Gradually increase the speed to the nominal operating range (1000-2800 rpm).
• Control Calibration: For pressure-compensated models: Adjust the pressure setpoint using the compensator screw (refer to the system's pressure requirement).
• For electro-hydraulic models: Send a 0-100% electrical signal and verify that the pump's displacement changes linearly (use a flow meter to confirm flow rate).
• Load Test: Apply gradual load to the system (up to the maximum operating pressure).
• Confirm that the pump's control mechanism responds correctly (e.g., pressure compensator reduces flow at set pressure).
• Monitor pump temperature (should not exceed 60°C after 30 minutes of operation).