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My pump is a hayward sp1510-z-2-b. I have removed the 4 bolts thru the motor housing, holding the pump housing to motor. It looks as though the impeller and housing should slide off. It moves approximately .5 inches and will go no further, can find no keepers or set screws? what's the secret???

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With some emery paper clean exposed area of shaft. Try putting some penetrating oil on the shaft with it elevated so oil can run in under impeller. double check for set screws.

Posted on Sep 30, 2010


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How do I break down pool motor aol 1-1/2 hp

It depends which pump you have, on hayward super II you shut off the breaker, remove the rear motor cover, disconnect the electrical wires, then remove the 4 (9/16")bolts holding the motor to the "wet end" which is where the basket is. Now, pop off the diffuser, sometimes it stays in the wet end when you remove the motor. At the rear of the motor, use a 12mm wrench to hold the shaft, then unscrew the impeller (counter-clockwise) after removing the impeller, theres another plastic plate that lifts off, remove the plate, now there are 4 (9/16")bolts to remove in order to separate the motor from the seal plate. You have now broken down the pump. If you replace the motor, make sure to get a new seal as well (ps201)

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Super 11 pump clogged impeller how to fix

Remove the 6 bolts holding the motor mounting plate to the pump housing. Back the motor assembly out. Remove the diffuser and you'll see the impeller. Using picks and wire run through all of the impellers vanes to clear out the debris.

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Replace usq1202 pump

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.
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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If you are asking how to replace shaft seal?

open & dismantle pump from motor. Some will have thru bolt motors all the way thru the motor, heads of bolts are (4 each) visible & accessible at back of motor. Loosen these & your wet end will be detached from the motor once the impeller is removed. To do this, block and prevent the shaft from spinning - normally there is access to the shaft which is located at center behind a cap at the back of the motor. Then unscrew the impeller from motors shaft.

Aug 17, 2012 | Hayward 1.5hp Pool Pump Motor Motor A O...

1 Answer

Just hooked up pool for the summer, and the "Hayward Super Pump" 1.5hp is smoking. Series 8E04; Model # C48L2N134B1. Can I just replace the motor? & with what model#?

Thank you for posting your question here on

Yes you can replace just the motor. Your motor number is UST1152 or ST1102...same motor nameplated two different ways. They'll cost the same so whichever you can find at the best price is the one you should buy. You should also purchase a 201 seal and replace it when you install the new motor.

Remove the 4 bolts holding the pump and motor into the housing and pull the motor out. You then need to disconnect the electric supply from the rear once you are certain the breaker is off. Use a 7/16" wrench to hold the shaft from the same end and then spin the impeller off counter-clockwise looking at the impeller. Once off you can see the mechanical half attached to the impeller and the other is a recess in the seal plate.

Make sure when you install the new motor you match it to your voltage. They come out of the box set to run on 230V. If you only have 115 then you'll need to change the voltage selector device in the motor to 115.

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 Positive feedback is appreciated once your problem is solved!


May 11, 2011 | Hayward Super Pump 1 1/2 - Hp for In...

1 Answer

Can't get the 4 motor to housing bolts off sp 1515-z-1 esc pump motor without twisting bolt into. have broke one as of now. Trying to replace pump seal. instructs say to remove 4 motor bolts to housing and...

Thank you for posting your question here on

As a rule, when we get those pumps in for repair and the bolts are breaking you notice the motor shaft is severely corroded as well. Often times that will make the unit unrepairable as the new seal won't hold up on a damaged motor shaft. If that is your case you will want to at least consider a new motor and seal for the pump.

If you can remove the bolts with or without breaking you can precede to attempt the repair. Bear in mind you will need to get the busted tips out of the pump housing in order to install the new bolts. That is not an easy task as you are working with a small brass bushing in a thin plastic leg. The removal easily damaged the pump housing. Try to work the bolts back and forth to free the tips. You will then need to get the broken tips out. If all goes well and the shaft is not too bad you should be ok. Anything goes wrong, replace the motor and seal and you'll still save some $$$ compared to a whole new pump.

If this answer does not fix your problem, please comment with additional details prior to rating the answer. Positive feedback is appreciated once your problem is solved!


Sep 12, 2010 | AO Smith A O Smith Motors Century 1hp 115v...

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Hi ,, the pump motor will separate from the pump housing. there are 4 to 6 bolts around the joint between the motor and the pump. You probably want to remove the pump and motor from the system and get it to a more comfortable place for working. Unscrew the bolts and the motor will come off the pump housing. Then you need to remove the pump impellar. The whole thing goes back together in the reverse steps .. If you go to a pool shop for your motor , they should have an exploded model that you can look at to see how all the parts reassemble ..

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May 13, 2010 | Hayward 2HP Pool Pump Motor A O Smith...

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First you'll need to take the outer 6 bolts off the pump housing and that will allow you to remove the impeller and impeller housing with the motor. Then you can remove all the impeller parts and get to the bolts that hold your motor to the housing....
When you get the impeller and the housing free, check to see if your motor will turn... alot of times the motors get jammed because the pump sucks debris and jams in the impeller.... you may be able to still use your motor...worth a try...

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Super pumps are very easy. If it is a northstar it is more difficult. Super pump. You will need 1 motor, 1 pump seal, 1 diffuser gasket, 1 housing gasket. turn off breaker, disconnect wires -noting whether it is 110 or 220 volts- , unscrew four bolts on back of pump housing (shaft side of motor), pull out motor with rear housing and diffuser (sometimes diffuser sticks inside), on wire side of motor hold shaft with wrench (flathead in some cases, but it is harder), unscrew impeller counter clockwise (like normal screw - you will nee a big pair of channel locks or a strap wrench), there are two pieces of the back housing and once the impailer is off you can remove the half that is closest to the end of the shaft to reveal four more screws, unscrew those four screws. screw back part of rear housing onto new motor. Install new pump seal to front part of rear housing and impeller, slide on front part of rear housing and then screw on impeller while holding shaft on wire side with wrench (only hand tight), replace housing gasket, replace diffuser gasket, slide into front housing and screw in four bolts. If electrical was 110 you will need to move the jumper on the wire end..if it was 220 then just hook kup wires...doesnt matter which is which as long as green or bare goes to the ground screw.

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