Over time, pump vanes wear down due to ongoing contact with the rotor housing. This can lead to reduced pump performance, increased wear on internal parts, and potentially costly failures. Replacing your Masport pump vanes at the right time is key to keeping your vacuum pump running efficiently and reliably.
Watch the official Masport “How To” video here: Masport Pump Vane Replacement Guide
When Should You Replace Your Pump Vanes?
Knowing when to replace your vanes helps prevent bigger issues. Look out for:
- A noticeable drop in vacuum pump performance, with no other visible fault
- Worn, gouged, or broken vanes
- Audible scraping or binding sounds when the rotor spins
If any vanes are damaged, it’s best practice to replace the full Masport vane set to ensure even wear and reliable performance.
Step-by-Step: How to Replace Your Pump Vanes
- Remove Oil Components
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- Remove the oil guard cover, oil line, and oil pump using a 4mm Allen wrench.
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- Extract the oil pump drive shaft with needle-nose pliers.
- Access the End Cover
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- Use a 13mm socket to remove shaft cap bolts.
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- If needed, file the shaft key slot clean.
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- Rotate the shaft downward.
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- Remove end cover bolts using a 16mm socket.
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- Use the official Masport end cover tool to detach the end plate evenly.
- Inspect Internal Components
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- Check the O-ring, gasket, cylinder housing, and bearings for signs of wear or damage.
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- Note the gasket thickness (based on hole count) if a replacement is required.
- Remove and Assess Vanes
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- Carefully slide out the vanes.
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- Inspect each for wear, scoring, or binding.
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- If any vane is damaged, replace the full set using genuine Masport pump vanes.
- Install New or Reused Vanes
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- Lightly coat each vane in Masport Blue oil.
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- Install with the chamfered edge facing the shaft.
- Reassemble the Pump
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- Clean all contact surfaces.
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- Reinstall the shim gasket with a light oil coating.
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- Fit the end cover, lightly tap into place, and torque bolts evenly (start with short bolts).
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- Confirm the rotor spins freely.
- Reinstall Oil System Components
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- Align and reinsert the oil drive shaft.
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- Reattach the oil pump, oil line, and oil guard cover.
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- Use a torque wrench to secure all bolts correctly.
- Final Checks
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- Ensure the shaft spins freely.
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- Fit and tighten the shaft cap.
Need Help with Vacuum Pump Servicing in Western Australia?
Air & Power is an official distributor of Masport pumps, Masport spare parts, and genuine pump vanes. Our fully equipped workshop in Belmont, WA offers installation, maintenance, and customisation support for industrial vacuum systems.
Get in touch today to book a service or order genuine Masport parts.
