Question about Smith 2hp Pool Pump Motor A O Electric Pool Motor Replacement for 48y Square Flange Usq1202

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Replace usq1202 pump

Looking for instructions, have done a Hayward in the past

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  • jaxt315
    jaxt315 Jan 21, 2013

    Thanks, seems simple enough!

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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).

  1. Shut power off at the breaker.
  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.
  9. Unscrew the impeller CCW.
  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.
  11. Reassembly to the new motor is basically reversing the steps above.
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.

Posted on Jan 20, 2013

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