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How to change oil for rotary vane vacuum pumps?

Stop Burnout Before It Starts: Why Oil Changes Matter

Rotary vane vacuum pumps rely on clean oil to maintain vacuum integrity, prevent internal wear, and extend service life. Skipping or delaying oil changes leads to overheating, reduced suction, and eventual pump failure. If your pump is used in continuous or demanding applications—like medical manufacturing or lab environments—oil degradation happens faster. This video walks you through the exact steps to change the oil properly, minimizing downtime and protecting your equipment investment.

Do you know how to change the oil in your rotary vane vacuum pump?

Watch the video to see and follow the principles.

Remember, its Safety First! Use personal protective equipment, turn off the pump, prepare your tools and equipment, and stick to the instructions shown in the video. Don’t miss our maintenance tips!.

What You’ll Learn in the Video

  • When to change the oil: Based on operating hours, oil color, and performance drop-offs.
  • How to drain old oil: Safely and completely, without contaminating the workspace.
  • Which oil to use: Brand-specific recommendations and viscosity grades.
  • How to refill and test: Ensuring correct levels and checking for leaks or pressure issues.

The video is designed for technicians, lab managers, and anyone responsible for equipment maintenance. It’s short, direct, and filmed using Welch rotary vane pumps, but the principles apply broadly.

 

FAQs

Typically every 500–1,000 operating hours, but check the pump manufacturer’s manual. If the oil darkens or the pump runs hotter than usual, change it sooner.