Keyword: troubleshooting for rotary vane vacuum pumps
As with any product, vacuum pumps are susceptible to wear and tear over time. In the event that these vital components, widely utilized across various industrial sectors, begin to malfunction, it’s crucial to address the issue promptly. In this guide, we’ll delve into some of the most common reasons for vacuum pump troubles and provide insights into effective maintenance practices.
✼ The Vacuum Pump Fails to Start.
Upon applying power, if the vacuum pump doesn’t initiate operation, a thorough examination of the circuit is imperative. This includes checking the fuse and all associated circuit components. Assuming the circuit proves to be functional, several potential causes must be considered:
- Motor Burnout: This occurs when the coil of the motor stator sustains damage, often due to factors like a surge in current or worn-out motor bearings. Increased bearing friction resistance leads to elevated temperatures and subsequent motor burnout. In such cases, it’s advisable to first inspect the motor bearings, followed by assessing the motor coil. If significant damage is detected in both components, motor replacement becomes necessary.
- Blocked Rotary Vanes: When the friction between the rotary vanes and the pump chamber’s internal surface becomes excessive, the motor may struggle to drive the vanes. This can result from various factors, including:
a. Deformed Rotary Vanes: The springs within the vanes fail to revert to their original positions after extension.
b. Excessive Combined Force: A combination of spring pressure and centrifugal force becomes too great, leading to heightened friction resistance. In such cases, prompt repair or replacement of the vanes and springs is essential.
In rare instances, other potential causes may include exceptionally low ambient temperatures, improper use of vacuum oil (particularly oils with high viscosity), or an excessive oil level (overfilling the pump with oil).