If your vacuum pump has been hibernating all winter, it’s time to dust it off and get it ready for high season. In less than an hour, this “spring cleaning” procedure will help you hit the ground running:

  1. Check, maintain or replace the “O”-rings inside the intake fitting caps, gas ballast and oil drain.
  2. Check coupling to ensure it’s tightened properly.
  3. Drain oil from the reservoir.
  4. Fill the pump with clean vacuum pump oil. Secure intake caps, close gas ballast and blank-off or isolation valve. Run pump on the bench for 30 minutes to ensure the oil is very warm. Turn off the pump.
  5. Drain the oil. Turn pump on for :03 seconds and then off for :03 seconds – two times. This helps drain the last of the oil from inside the pump cartridge.
  6. Replace the drain plug.
  7. Refill the pump with fresh YELLOW JACKET vacuum pump oil.
  8. Using a mild degreaser, clean the exterior of the pump. (Clean, well-maintained tools are the true mark of a professional!)
  9. Cover the pump exhaust to prevent moisture from entering the pump.
  10. Examine any external parts that may need replacing, such as intake fittings, leg assemblies, etc.