Question about A.O. Smith SQ1102 Pool Pump Motor

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I am trying to replace the motor on a pool pump. How do you remove the front end or impeller to install a new motor?

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It may have a left hand thread screw in the front of the impeller turn this screw clockwise to loosen, to loosen the impeler just use a 7/16 or a 9/16 wrench to hold the back of the motor shaft look close you will see a slot in the shaft for the 7/16 wrench just under the centrifugal switch , this will hold the rotor still so you can turn the impeller counter clockwise to remove it

Posted on Oct 11, 2010

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remove the motor from the wet end of the pump remove the cover on the impeller then remove the impeller screw it it normally backwards thread then spin off the impeller this has a regular thread split the motor from the backing plate then remove the seals and replace with new ones then reverse process

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look to make sure there is no ***** in the center of the impeller, if so, it loosens to the right. the impeller will come off by turning it to the left (facing the impeller) if you still have trouble with the impeller, search your area for your ''local pool pump motor repair guy'' with free testing.
he should be able to save the impeller and install a new seal for around $20.
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It looks like since you have a square flange motor you have either a Tri-Star, a Maxflo II pump or other model by Hayward.. Either way the process is very similar.
Replace the seal, o-rings and gaskets with new ones. Use a teflon based lubricant on all rubber parts, including the seal, but try not to get any on the ceramic (white ring).
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  2. Remove the bolts connecting the motor plate to the pump housing.
  3. Back motor assembly out of pump housing making sure that the diffuser and its gasket also come out.
  4. Disconnect the electrical supply.
  5. Remove the diffuser if still covering the impeller, (there may or may not be screws to remove).
  6. Remove impeller ring (if one).
  7. Holding the impeller firmly remove the impeller screw. This is in the center of the impeller and has a REVERSE THREAD, meaning turn screw clockwise to loosen.
  8. Remove the end cap on the opposite end of the motor and use a 9/16" open end wrench to hold the shaft from turning.
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  10. IMPORTANT -- Note how both parts of the seal are oriented to assure the new one is installed likewise, then pull off the seal and seal plate, and discard old seal parts. Also note which way is UP on the seal plate relative to the motor.
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NOTES:
The impeller ring (if one) is a ring with a lip around one side. This goes over the center of the installed impeller with the lip facing outward, away from the impeller.



Do not over tighten the bolts! You can damage the pump by doing this. Snug plus about a quarter turn is plenty. In the event you have leaking after startup, open the pump back up and check you housing gasket.

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1 Answer

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Thank you for posting your question here on Fixya.com.


Removing the impeller requires you lock the shaft as you turn the impeller off counter-clockwise. You will also need to check for an impeller screw in the center of the impeller inlet. If a screw is present they are usually left hand thread. Back out the screw first, then proceed to remove the impeller.


To lock the impeller you will have to remove the motor end cover or a cap covering the shaft end depending on which version your particular motor has. Look at the end opposite the pump and imagine a shaft from one end to the other right in the center.


Once you remove the cover you will see a slot for a screwdriver, a flat for a wrench, a hex hole for a hex key or some combination of these. Lock the shaft and spin off the impeller. Some are so tight you will end up breaking them in the process. Simply replace it and the seal. Be sure the motor shaft is in good enough condition to allow the new seal to work properly. If too much shaft material has rotted away the new seal will leak soon after it is installed; you would need a new motor at that point.


If this answer does not fix your problem, please comment with additional details prior to rating the answer. You may also contact me thru our website at www.arrowpools.net. Positive feedback is appreciated once your problem is solved!


John

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How do I remove the pb460 booster pump in order to install the new one? Does the water have to be turned off from the pool?


You are trying to remove the pump so you can replace the impeller correct?
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This video helps, although its not the same pump..

I hope this helps....

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