Vickers Double Vane Pump 4520V-45A9-1AA22R

1. Introduction

2. Product Overview

2.1 Product Description

2.2 Key Features

• High Volumetric Efficiency: Volumetric efficiency exceeds 92%, realizing efficient conversion of mechanical energy to hydraulic energy and minimizing energy loss.
• Low Noise Operation: Sound levels as low as 65 dB(A), meeting the noise control requirements of general industrial workshops and equipment.
• High Operating Pressure: Maximum operating pressure up to 207 bar (3000 psi), capable of adapting to most medium-pressure hydraulic working conditions.
• Flexible Installation: Field-adjustable port orientation and pump rotation direction, facilitating on-site installation and adjustment without additional modifications.
• Self-Wear Compensation: The vane automatically adjusts its position to maintain close contact with the cam ring, ensuring stable performance even after long-term use and slight wear.
• Easy Maintenance: The independent cartridge design (separate from the shaft) allows for quick flow capacity replacement and on-site maintenance without removing the pump from the mounting base.
• Compact Structure: Small volume and light weight, saving installation space and reducing the overall load of the equipment.

3. Technical Specifications

4. Ordering Code Interpretation

• 4520V: Series Identifier, indicating EATON Vickers 4520V double vane pump (medium displacement)
• 45: Displacement Code (Shaft End), corresponding to 74 cm³/revolution (4.5 cu in/revolution)
• A: Port Connection, SAE 4-bolt flange (standard connection type)
• 9: Displacement Code (Cover End), corresponding to 147.5 cm³/revolution (9.0 cu in/revolution)
• 1: Outlet Position, Inline with inlet (standard design)
• AA: Design Number, standard duty design (adapt to general industrial working conditions)
• 22: Design Supplementary Code, indicating standard seal and bearing configuration
• R: Rotation Direction, Right Hand (Clockwise, consistent with the mark on the pump housing)

5. Installation Instructions

5.1 Installation Preparation

5.2 Mounting Steps

1. Align the pump’s mounting flange (SAE A, 4 Bolt) with the equipment’s mounting surface, ensuring that the shaft is coaxial with the driving motor. The coaxiality error should not exceed 0.1 mm to avoid excessive wear of the shaft and bearing.
2. Use the specified bolts to fasten the pump to the mounting surface, and torque the bolts evenly according to the recommended torque (refer to the equipment manual) to prevent uneven stress on the pump housing and avoid leakage.
3. Connect the inlet and outlet pipelines to the pump’s ports. Ensure that the pipeline connection is tight and free of leakage. The inlet pipeline should be as short and straight as possible to reduce suction resistance, and the outlet pipeline should be equipped with a pressure relief valve to protect the pump from overpressure damage (not exceeding 207 bar / 3000 psi).
4. Check the rotation direction of the pump. The pump’s rotation direction is marked on the housing (clockwise for model R). Connect the pump to the driving motor correctly to ensure that the rotation direction is consistent with the mark.
5. Fill the pump and hydraulic system with clean hydraulic oil that meets the specified grade (refer to Section 6.1) before starting the pump, ensuring that the oil fills the entire pump cavity.

5.3 Installation Notes

• Do not install the pump in a location with high temperature, humidity, or corrosive gas to avoid damage to the pump components and seal failure.
• Ensure that the inlet pipeline is free of blockage and leakage, and the suction height should not exceed 0.5 meters to prevent cavitation and damage to the vane and rotor.
• Do not use excessive force when connecting the pipeline to avoid damaging the pump’s ports and causing oil leakage.
• Ensure that the mounting surface has sufficient rigidity to avoid vibration during pump operation, which may affect the service life of the pump and pipeline connections.

6. Operation Guidelines

6.1 Hydraulic Oil Requirements

• Viscosity: 10-40 cSt at operating temperature (20-60°C)
• Cleanliness: ISO 18/15 (NAS 8)
• Recommended Oil Grade: ISO VG 32 or ISO VG 46 hydraulic oil (suitable for medium-duty working conditions)
• Do not mix different types or grades of hydraulic oil to avoid chemical reactions that damage the pump components and reduce oil performance.

6.2 Start-Up Operation

1. Before starting the pump, check the oil level in the hydraulic tank to ensure it is within the specified range and the oil is free of sediment and impurities.
2. Start the driving motor at low speed (500-800 rpm) and run it for 2-3 minutes to allow the hydraulic oil to circulate and fill the pump. Check for oil leakage at the pipeline connections and pump seals.
3. Gradually increase the motor speed to the rated speed (1800 rpm) and check the pump’s operation status, including noise, vibration, and temperature. The normal operating temperature of the pump should be between 20-60°C. If the temperature exceeds 70°C, stop the pump and check the cause (such as oil contamination or poor heat dissipation).
4. Check the pressure gauge to ensure that the system pressure is within the maximum operating pressure range of the pump. Do not exceed 207 bar (3000 psi) for a long time to avoid excessive wear of internal components.

6.3 Normal Operation

• During operation, regularly check the pump’s noise, vibration, and temperature. If abnormal noise (such as knocking or squealing) or excessive vibration occurs, stop the pump immediately and troubleshoot.
• Monitor the system pressure and flow rate to ensure they are stable and meet the working requirements. Avoid long-term operation at maximum pressure to reduce wear of the pump components and extend service life.
• Keep the hydraulic oil clean. Regularly check the oil filter and replace it when it is clogged to prevent debris from entering the pump and causing wear to vanes, rotors, and cam rings.
• For medium-duty continuous operation, check the pump’s temperature and oil level every 3 hours to avoid overheating and oil shortage.

6.4 Shutdown Operation

1. Gradually reduce the system pressure to zero before shutting down the motor to avoid pressure impact on the pump and pipeline.
2. Stop the driving motor and close the power supply to ensure safe operation.
3. If the pump will not be used for a long time, drain the hydraulic oil from the pump and hydraulic system, and seal the ports with protective caps to prevent dust and moisture from entering and damaging internal components.

7. Maintenance and Servicing

7.1 Routine Maintenance

• Daily Maintenance: Check the oil level, oil temperature, and any oil leakage; listen to the pump’s operation noise and check for abnormal vibration.
• Weekly Maintenance: Clean the surface of the pump and the surrounding area; check the tightness of the bolts and pipeline connections; check the oil filter for clogging.
• Monthly Maintenance: Take a sample of the hydraulic oil to check its quality. If the oil is contaminated or deteriorated, replace it with new oil; check the seal for wear and replace it if necessary.
• Annual Maintenance: Disassemble the pump and inspect the internal components (vanes, cam ring, rotor, bearing, etc.) for wear. Replace worn components with original EATON Vickers spare parts; clean the internal cavity of the pump and reassemble it correctly.

7.2 Cartridge Replacement

1. Shut down the pump and relieve the system pressure, then disconnect the power supply and pipeline connections to ensure safety.
2. Remove the bolts that fix the cartridge to the pump housing, taking care not to damage the housing and cartridge.
3. Pull out the old cartridge and clean the internal cavity of the pump housing with clean hydraulic oil to remove debris and impurities.
4. Install the new cartridge (use original EATON Vickers cartridge) and fasten the bolts evenly to ensure the cartridge is fixed firmly.
5. Reconnect the pipelines and power supply, fill the pump with hydraulic oil, and test the pump to ensure it operates normally without leakage or abnormal noise.

7.3 Spare Parts Requirements

8. Troubleshooting

9. Safety Precautions

• Before installing, operating, or maintaining the pump, read this manual carefully and follow all instructions to avoid personal injury or equipment damage.
• Do not operate the pump beyond the maximum operating pressure (207 bar / 3000 psi) or speed (1800 rpm) to prevent pump failure and potential safety hazards.
• When the pump is running, do not touch the rotating parts (such as the shaft) to avoid personal injury.
• When performing maintenance or replacing parts, ensure that the system pressure is completely relieved and the power supply is disconnected to avoid accidental start-up.
• Use appropriate protective equipment (such as gloves, goggles) when handling hydraulic oil or disassembling the pump to prevent oil splashing and component damage.
• Dispose of used hydraulic oil and worn parts in accordance with local environmental protection regulations to avoid environmental pollution.

10. Warranty Information