Diagnosis and Maintenance of Bearing Faults in Slurry Pump

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• TIME : 2025-04-16

fault diagnosis

The diagnosis of slurry pump bearing faults mainly includes the following aspects:

Abnormal sound: If the slurry pump makes abnormal noise during operation, it may be caused by transmission device failure, loose or excessively worn pump body, and other reasons. In addition, the presence of liquid reflux or air may also cause abnormal sound.

Unstable speed: The unstable speed of the pump may be due to excessive sliding of the rotor shaft or poor production process of the pump, resulting in unstable quality.

Decreased sealing performance: The decrease in sealing performance of the pump may be due to damage to the sealing ring causing fluid leakage, or aging or wear of the pump bearings.

Difficulty starting: If the slurry pump cannot start normally, it may be due to insufficient power supply, line faults, damaged embedded starter, hydraulic cylinder jamming, or hydraulic pump blockage.

Maintenance and Repair

The maintenance and repair steps for slurry pump bearings are as follows:

Shutdown and power outage: Firstly, shut down the slurry pump and cut off the power supply to ensure safe operation.

Disassemble the pump body: Use tools to disassemble the pump body and separate it from the motor.

Disassemble the bearing seat: Use tools to disassemble the bearing seat and separate it from the pump body.

Dismantling bearings: Use specialized tools to remove the bearings from the shaft. Pay attention to the direction of the bearings to avoid damage.

Cleaning the bearing seat and shaft: Use a cleaning agent to clean the bearing seat and shaft, removing dirt and residue.

Install new bearings: Place the new bearings on the shaft to ensure a good fit between the bearings and the shaft. Special tools can be used to gently tap the bearing to make it fit more tightly with the shaft.

Install bearing seat: Install the bearing seat back onto the pump body, ensuring that the bearing seat fits well with the pump body. Use a torque wrench to tighten according to the specified torque.

Install pump body: Reconnect the pump body to the motor to ensure a secure connection.

Start the pump: Reconnect the power supply, start the pump, observe the operation of the bearings, and ensure normal operation.

Inspection and maintenance: Regularly check the working condition of the bearings, promptly handle any abnormalities, and maintain the normal operation of the bearings.

By following the above steps, it is possible to effectively diagnose and repair bearing faults in the slurry pump, thereby ensuring its normal operation.

　　This article originates from https://www.fuyangpumps.com/news/390.html. Please indicate the source when reprinting.

(Editor in charge: Slurry Pump https://www.fuyangpumps.com/)

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