Two Common Issues and Solutions for Vacuum Pump Maintenance and Repair

.PVR Vacuum Pump Filter
Solutions for two common issues encountered during vacuum pump maintenance: (1) Oil leakage at the end cover. Check the tightness and torque; if the torque is insufficient, tighten to the specified level. Inspect the mating surfaces of the pump body and cover for deformation; if deformed, replace damaged parts or repair the surfaces. Replace the seal if it is damaged. (2) Low efficiency, noise, and failure to generate vacuum suction. Check if the clearance between the pump vanes and their slots is excessive; if so, replace the vanes. Check the condition of pipe connections and ensure the check valve is securely tightened; replace connecting pipes if necessary.
Solutions for two common issues encountered during vacuum pump maintenance:

　　(1) Oil leakage at the vacuum pump end cover. Check the tightness and ensure the torque is sufficient; if not, tighten to the specified torque. Inspect the mating surfaces of the pump body or cover for deformation; if deformed, replace the damaged parts or repair the mating surfaces. If the sealing ring is damaged, replace the seal.
(2) Low vacuum pump efficiency, accompanied by noise and a failure to generate vacuum suction. Check if the clearance between the vacuum pump vanes and their slots is excessive; if so, replace the vanes. Inspect pipe connections for integrity and check if the check valve is loose; replace the connecting pipe or tighten the check valve to the specified torque as necessary. Check if lubrication issues are causing reduced efficiency; if so, clean the lubrication passages.
The proper operation and maintenance of vacuum pumps by personnel directly impact the efficiency of the filtration machine; therefore, procedures should be tailored to the specific type of pump used. While water-ring vacuum pumps are relatively simple to operate and maintain, piston-type pumps are more complex—offering higher efficiency but being more prone to malfunctions. Timely lubrication, in particular, can help reduce the incidence of such failures.PVR-Rotant Exhaust Filter - 005224