Question about Astral Products Difusser 1/2 Hp - 1 1/2 Hp

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How do I remove the impeller motor from the back plate to replace the backplate

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  • kimkimsolo Jul 18, 2009

    I have an astal pool pump, I need to remove the impeller motor from the back plate

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Those are usually left-hand threads, meaning you turn them clockwise to loosen them. If you know which way the motor turns when it's running, you need to turn the shaft in the opposite direction while holding the impeller. The shaft is designed such that the force of the shaft would tend to tighten the impeller.

Rust is probably not the problem. The impeller fits tightly on the shaft, as you've noticed, which prevents water from reaching the threads. When you finally get the impeller off, the threads will be the only clean, shiny part of the shaft.

If the slot on the back of the shaft is the screw that holds the rev limiter plate to the shaft, try removing it. There may be flat spots under there you can get a wrench on.

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Posted on Jul 18, 2009

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  • Master
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Hi there,

 Loosen the idler pulley and remove the drive belt. Make note of the way the belt wraps around the various pulleys. Remove the two 9/16th bolts that hold the pump and bracket to the engine. You will now have enough room by pulling the pump out of the front of the engine to get to the two hose clamps..

Good Luck!!

Thanks

Posted on Jul 18, 2009

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1 Answer

How to replace seal on a


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

Jul 13, 2014 | Hayward 1.5hp Pool Pump Motor Motor A O...

1 Answer

How do I fix the seal?


please follow this steps . God bless you
  1. Turn off the pump motor and close the input and output valves.
  2. Loosen the fasteners that secure the tube connecting the pump and motor.
  3. Move the motor away from the pump housing.
  4. Remove fasteners holding the diffuser to the backplate.
  5. Inspect the diffuser and O-ring for wear, replacing as needed.
  6. As needed, remove fasteners attaching the impeller to the shaft. Alternately, the impeller may be screwed on to the end of the shaft.
  7. Remove the impeller and seal from the shaft.
  8. Inspect and replace the impeller and seal.
  9. Reassemble the pump.
5ad0fb72-ac24-4a0e-94fb-9faca07eee0b.jpg

Nov 23, 2013 | Hayward Sp2607x10 Super 1 Hp Swimming Pool...

1 Answer

How do I take it apart


follow this steps and fix it. God bless you
  1. Turn off the pump motor and close the input and output valves.
  2. Loosen the fasteners that secure the tube connecting the pump and motor.
  3. Move the motor away from the pump housing.
  4. Remove fasteners holding the diffuser to the backplate.
  5. Inspect the diffuser and O-ring for wear, replacing as needed.
  6. As needed, remove fasteners attaching the impeller to the shaft. Alternately, the impeller may be screwed on to the end of the shaft.
  7. Remove the impeller and seal from the shaft.
  8. Inspect and replace the impeller and seal.
  9. Reassemble the pump.
7e13e6cb-4b3a-4633-869c-5fb51a7ab1b0.jpg

Nov 23, 2013 | Hayward Sp2607x10 Super 1 Hp Swimming Pool...

1 Answer

Hurlicon pump is throwing out sand from the water jets back into my pool as I am cleaning. Have tried to clean filter and back washed so many times but its not working.


make this steps and fix it. God bless you
Replace a pump seal:
  1. Turn off the pump motor and close the input and output valves.
  2. Loosen the fasteners that secure the tube connecting the pump and motor.
  3. Move the motor away from the pump housing.
  4. Remove fasteners holding the diffuser to the backplate.
  5. Inspect the diffuser and O-ring for wear, replacing as needed.
  6. As needed, remove fasteners attaching the impeller to the shaft. Alternately, the impeller may be screwed on to the end of the shaft.
  7. Remove the impeller and seal from the shaft.
  8. Inspect and replace the impeller and seal.
  9. Reassemble the pump.
6fc9db90-eb83-4654-823c-4bb03d268d12.jpg

Nov 13, 2013 | Pool & Spa

1 Answer

Rear seal sa200


please make this steps and fix it. God bless you
Replace a pump seal:
  1. Turn off the pump motor and close the input and output valves.
  2. Loosen the fasteners that secure the tube connecting the pump and motor.
  3. Move the motor away from the pump housing.
  4. Remove fasteners holding the diffuser to the backplate.
  5. Inspect the diffuser and O-ring for wear, replacing as needed.
  6. As needed, remove fasteners attaching the impeller to the shaft. Alternately, the impeller may be screwed on to the end of the shaft.
  7. Remove the impeller and seal from the shaft.
  8. Inspect and replace the impeller and seal.
  9. Reassemble the pump.

Nov 12, 2013 | Pool & Spa

1 Answer

How do I remove existing motor and replace it with a new one ? Hayward 2.0 hp # SP2615X20 Thank you


Turn off the electric first. Now split the pump in two by removing the large clamp or 4-6 bolts holding the two halves together. (not the 4 bolts holding the motor to seal plate, but the the bolts holding the seal plate to the seal plate housing). Once you remove the clamp or bolts, the motor with seal plate, diffuser, and Impeller can all be pulled back away from the pump. Then disconnect the electrical from the motor and you can pull the motor with the seal plate, and impeller all the way out and work on it. To get to the impeller, you need to remove the diffuser (plastic housing that goes around the impeller) usually by a series of 3 to 6 small screws. To remove the impeller you need to lock the motor and unscrew impeller. Depending on the motor, you remove a cap in the middle of the tail piece and hold with a wrench, or remove a cap that covers the whole end and grab the shaft with a wrench (usually 7/16") by sliding it under the thermal overload switch, or removing the capacitor for even easier access. Once you've locked the shaft, you can just unscrew impeller. If the impeller has a bolt or screw in the middle remove that first. this screw will be reverse thread so make sure you don't turn the wrong way and break or strip. If there is no screw, or after you've removed it, just spin the impeller off (standard thread). If you can't do it by hand and assuming you don't have an impeller wrench, be very careful and use a large pliers, pipe wrench, or strap wrench to loosen it. After that you unbolt the motor from the seal plate, pull the seal plate away from motor (this removes half the seal), and then pop the other half of the seal from the seal plate. Make sure to replace the shaft seal, and use a tiny bit of pool lube on the rubber parts when installing, but keep the white ceramic, and black graphite surfaces 100% free of any dirt, grease, etc while working with them. Installation is pretty much just the reverse. Install half the seal into the seal plate. Install the seal plate onto motor and bolt into place. Install other half of seal onto shaft. Screw impeller onto shaft and install screw (if one was there to start with) in center of impeller (reverse thread). install diffuser over impeller make sure it is centered and doesn't rub the impeller hub. Install new diffuser and valute o-rings. Hookup wiring before re-attaching to rest of pump. Clamp or bolt back together. Pour plenty of water into pot to prime and flip the motor on for a sec or two. Pour some more water. Install pot lid. You should be good to go. Keep in mind there are many different pumps and some variations to the above instructions, but the above should cover most situations. Hope this helps. If you need further assistance post a reply in the comments, and don't hesitate to leave a good thumb rating if you found this helpful. Thanks, and good Luck!

Oct 02, 2010 | Hayward 2HP Pool Pump Motor A O Smith...

1 Answer

Looking to replace my elec. motor on my hayward pump # sp3605x7. ser# 640c30. not sure how you..remove the motor from the pump.did not see a set screw? thank you steve 978-606-9706.


Turn off the electric first. Then just remove the 4-6 bolts and separate the back half from the front. The motor with seal plate, impeller, and diffuser can all be pulled back away from the rest of the pump. Now disconnect the electrical from the motor and your can pull the motor with the seal plate, diffuser, and impeller all the way out and work on it. You need to remove the diffuser (plastic housing that goes around the impeller) sometimes this is held by a series of 3 to 6 small screws, other times it just slips over the impeller. To remove the impeller you need to lock the motor and unscrew impeller. Depending on the motor, you remove a cap in the middle of the tail piece and hold with a wrench, or remove a cap that covers the whole end and grab the shaft with a wrench (usually 7/16") by sliding it under one of the components (not sure exact part off top of my head have to look at it) and then turning impeller. If the impeller has a bolt or screw in the middle remove that first. It should be reverse thread so make sure you don't turn the wrong way and break or strip. If there is no screw, or after you've removed it, just spin the impeller off (it should be counter clockwise standard thread). If you can't do it by hand and assuming you don't have an impeller wrench, be very careful and use a large pliers, pipe wrench, or strap wrench to loosen it. After that you unbolt the motor from the seal plate, pull the seal plate away from motor (this removes half the seal), and then pop the other half of the seal from the seal plate. Make sure replace the shaft seal, and use a tiny bit of pool lube on the rubber parts when installing, but keep the white and black ceramic surfaces 100% free of any dirt, grease, etc while working with them. The instructions above a based on a very similar model and may vary slightly, let me know if something doesn't look/sound right and I'll clarify. Good Luck

Sep 24, 2010 | Hayward Single Speed 34 Hp Swimming Pool...

1 Answer

Tryiing to replace motor cannot get diffuser and seal plate free how do they come apart


First remove bolts holding motor to wet end. Pull motor back and out of wet end. Diffuser should just fall off. Not held by anything, there are just some locating tabs. Next, unscrew impeller. Some impellers may have a screw holding it on to center shaft. If so, unscrew.(Backwards thread). Remove back cover on motor and hold centershaft with large screwdriver or wrench on flat of shaft. Unscrew impeller. Next, unscrew 4 bolts holding motor to seal plate.

Apr 17, 2010 | Hayward Super Pump 1 1/2 - Hp for In...

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.

This is a general guide for replacing a seal, if you have trouble removing the impeller, you may need an impeller wrench and a tool to hold the motor shaft.

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

Oct 28, 2009 | Pentair Pool & Spa

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