We know how important it is to keep your vacuum pump running at peak performance. There are some easy ways to regularly maintain your pump to avoid costly repairs and replacements. We have laid them all out in our Two-Stage Oil-Sealed Rotary Vane Vacuum Pump Maintenance Checklist, available for free.
- Check pumps vacuum at the vacuum pump inlet port with a digital torr/millitorr style gauge
- If vacuum level is too high and close to pump spec then change oil.
- If changing oil does not help then arrange for pump service.
- Check pump oil level and color (color should be clear or golden)
- Add if too low due to excessive oil misting on exhaust.
- Change oil if too high or if oil is dark, milky or not clear (i.e. indicates process liquids condensing in pump).
- Check for oil leaks around oil casing or from front shaft seal/coupling underneath pump
- Arrange for minor seal kit repair if leaks are found.
- Check oil mist exhaust filter
- Drain off any excess oil in filter housing.
- Replace oil mist filter if fully saturated.
- Check gas ballast function to ensure it is closed
- Only open gas ballast if pumping on lots of water vapor.
- Check inlet filter trap
- Replace filter element if contaminated or if vacuum levels are not good.
- Check function of anti-suck valve by turning off pump and leaving inlet under vacuum
- Any oil that goes up the inlet port will require immediate pump service.
- Check pump oil case to determine if pump is excessively hot
- If pump case is very hot to the touch, change oil and make sure pumps are not pumping continuously open to the atmosphere.