After the installation of new impeller...

Question 1 / 270705eccef9bbacbc34ba4d454b6

Question 1 of 270705eccef9bbacbc34ba4d454b6

After the installation of new impeller wearing rings by pressing them onto the pump impeller hub, it is advisable to __________.

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Question 1 of 27070

After the installation of new impeller wearing rings by pressing them onto the pump impeller hub, it is advisable to __________.

🔍 Key Concepts

• Pump impeller wearing rings function and why correct fit/alignment matters • What pressing a ring onto a hub can do to trueness (runout) and balance • Differences between checking alignment/trueness, balancing, and in‑service inspection

💭 Think About

• Which action is needed immediately after pressing the new wearing rings on the hub, before the pump is put back in service? • How can you detect if the pressing operation has distorted the ring or caused it to be out of round or off‑center? • Would you wait for the pump to run an hour, or should you verify something about the mechanical fit first while it’s still on the bench?

✅ Before You Answer

• Focus on what you can check on the shop floor right after installation, before running the pump • Ask whether dynamic balancing is always required after replacing just wearing rings, or only when there is evidence of imbalance • Think about how machinists use centers and dial indicators to confirm that circular surfaces run true and concentric with the shaft

Question 1 of 27070

After the installation of new impeller wearing rings by pressing them onto the pump impeller hub, it is advisable to __________.

dynamically balance the shaft and impeller

check the shaft and impeller assembly on centers to see if the ring surfaces are true

visually inspect the rings after about an hour of service

all of the above

Question 1 / 270705eccef9bbacbc34ba4d454b6

Question 1 of 270705eccef9bbacbc34ba4d454b6

After the installation of new impeller wearing rings by pressing them onto the pump impeller hub, it is advisable to __________.

Back

Question 1 of 27070

After the installation of new impeller wearing rings by pressing them onto the pump impeller hub, it is advisable to __________.