A10VSO 140 pump

0 pump

First, Core Parameters and Characteristics of the A10VSO 140 Pump

The A10VSO 140 pump is a swashplate-type axial piston variable displacement pump from the Rexroth brand, specifically designed for open hydraulic circuits. It features the following core parameters and characteristics:

1. Displacement and Flow Rate:

Displacement is 140 cm³/rev. Flow rate is proportional to both drive speed and displacement, enabling stepless variable control by adjusting the swashplate angle.

At rated speed of 2000 rpm, maximum flow reaches 280 L/min, meeting high-flow application requirements.

2. Pressure Capability:

Rated pressure is 280 bar, with a peak pressure of 350 bar, suitable for high-pressure hydraulic systems.

Equipped with a constant pressure control valve (e.g., DR valve), it adjusts approximately 50 bar per revolution, enabling precise system pressure setting.

3. Control Modes:

Supports multiple control modes including Pressure Control (DR), Remote Pressure Control (DRG), and Pressure-Flow Composite Control (DFR) to meet diverse operational requirements.

Load-sensing control (e.g., DFR1) automatically adapts to load variations, optimizing system efficiency.

Second, A10VSO 140 Pump Operation and Maintenance Key Points

1. Pressure Adjustment:

Close the flow control valve (FR) and pump outlet. Use a hex wrench to adjust the constant pressure valve (DR) to the set value.

Monitor pressure changes in real-time with a pressure gauge during adjustment to prevent pressure surges that could damage the pump seal structure.

After adjustment, lock the limit nut to prevent pressure drift during operation.

2. Routine Maintenance:

Regularly inspect the inlet oil line for air leaks to ensure stable system pressure.

Maintain the relief valve to prevent insufficient or excessive system pressure due to valve failure.

If pump pressure is abnormal, inspect the mating surfaces between the cylinder block and distributor plate. Regrind or replace the hydraulic pump if necessary.

3. Troubleshooting:

If pressure fails to rise during self-priming operation, inspect the inlet oil line, hydraulic cylinder, check valve, and other components for leaks.

If pump pressure exceeds the required load pressure, examine directional valves, pressure valves, and other hydraulic components; adjust the relief valve setting.

If output flow fluctuates, disassemble the hydraulic pump to inspect the variable mechanism. Replace damaged parts, increase damping, enhance spring stiffness, and control pressure.

Elephant Fluid Power Technical team has many years of operation and service experience, Provide customers with professional hydraulic system solutions, Quality assurance of quality products, if you need A10VSO 140 Pump, We will provide you with the highest quality service.

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