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How to remove impeller on Pentair ultra-flow pump

My pump is leaking so I want to change the seals. therefore I have to remove the impeller. I hold the motor shaft with a flat screw driver but I can't rotate the impeller; tried clockwise and counter clockwise. I 'm worry yo break the impeller if I go further. Thanks for your support

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  • Jos Leroi May 06, 2013

    the locking screws was actually removed, the impeller is still stucked

  • Jos Leroi May 06, 2013

    Finally, I could undo the Impeller, rotating counterclockwise with more torque.

  • Jos Leroi May 06, 2013

    Finally, I could undo the impeller by rotating it counter clockwise with more torque, I guess the salt oxydize the tread of the shaft making it harder to unscrew it.
    I bought new seals and install them. It was not so easy to remove the old seals.

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  • 77 Answers

Remember to remove the impeller locking screw (left hand thread) before attempting to unscrew impeller.

Posted on May 06, 2013

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Posted on Jan 02, 2017

john224
  • 1378 Answers

SOURCE: I have a proline 1.5hp

Keep trying - It is stuck and will likely break but you have to remove it to change the seal. It is not uncommon to need to replace the impeller when the seal fails since the water gets behind the impeller shaft and rusts the metal causing the impeller to bind. If you still cannot get it free pull the motor thru-bolts and lock the rotor once removed from the motor in a vice. Use a large pair of channel locks to break the impeller free...replace it if necessary.

John

Posted on May 16, 2011

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When I changed Pentair Whiperflo motor with new Impeller & Diffuser seals the new motor shaft does not turn. Diffuser is pressing against Impellor not allowing it to rotate. What is wrong ?


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Pentair 011523 pump shaft seal is leaking. How do you remove the impeller and motor?


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Pentair Whisper Flow 2hp pump appears to not **** as much water as before. Filter basket recently broke and allowed small leaves to get sucked up by the motor. Could this be the reason for the loss of...


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1 Answer

Winding noise with some water leaking from the motor seal. Water still flowing but sounds laborous.


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1 Answer

1hp whisperflow pump, seal change. How?


Make sure breaker/power to pump is off. Remove the six bolts holding the wet end to the seal plate. Remove the diffuser to expose the impeller. Remove the screw in the middle of the impeller by turning clockwise (left hand threads). Remove the dust cap at the rear of the motor and use a wrench to hold the shaft while you remove the impeller by turning counterclockwise. Once the impeller is off, remove the four bolts holding the seal plate to the motor. Press the old seal out of the seal plate and clean it thoroughly. Remove the ceramic part of the seal from the impeller and clean it thoroughly as well. Apply a thin coat of lube to the seal plate and impeller where the new seal will go. Remove the new PS1000 shaft seal from the box (being careful not to touch the ceramic or carbon face with your fingers), press the metal part into the seal plate carefully, try not to bend the metal and make sure its completely seated against the seal plate. You can now install the seal plate back onto the motor and secure with four bolts. Press the ceramic part into the impeller, use cardboard or paper between your fingers and the ceramic face. Once you have seated the seal into the impeller, hold the motor shaft and thread the impeller on until snug, then reinstall the stainless screw, remember it is left hand thread so you'll have to turn it counterclockwise. Reinstall the diffuser over the impeller and then install the wet end onto the seal plate using the six bolts, don't overtighten them.

It is a good idea to replace the tank o-ring when taking to pump apart, but if the o-rings are in good condition, just apply a light coat of lube and reuse them.

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I hope this helps, if you have any specific questions, email me at mail@leisurepoolservice.com

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