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How to remove the Impeller and Gland Housing from the motor?

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How to remove impeller from a.o. smith


the impeller is screwed on like a bottle cap. On a sq flange motor, it is harder to do. the armature spins when you try to remove the impeller. you can try to use needle nose vise grips to keep it from spinning by gripping the shaft from underneath (between pump and motor) then try unscrewing the impeller. If this does not work, You will have to remove the armature. their are 4 thru bolts that can be removed from the back of the motor. they are each about a foot long. WD40 the place where the connect to the pump housing or you may break the housing. When removed, you can tap the rear of the armature with a hammer and chisel. when it pops free, remove the armature from the motor. you now have in your hand, the pump still attached to the armature. you can place the armature in a vise, (make sure you do not damage it) then use channel lock pliers to unscrew the impeller. The impeller may still break. Or you can try and place a wedge in the pump housing to keep the impeller from moving and turn the armature. good luck, it is not an easy job.

Nov 10, 2013 | A O Smith Motors A O Smith 1hp 115/230v Ur...

1 Answer

Remove motar from whisper flo pump


Replacing your pool pump motor
Gather the following items.
Phillips and flat head screwdrivers
Circuit tester
Dry towel
Step One
First, make sure that the power to the pump is turned OFF. This means turning off the breaker at the panel box and not just the switch at the pump.
Step Two - Removing the motor assembly
Remove the four hex head bolts which hold the motor assembly to the pump/strainer housing (These bolts may not be visible).
Slide the motor assembly out of the pump/strainer housing, exposing the diffuser. Pull the diffuser of of the seal plate, exposing the impeller. (The diffuser may remain in the pump/strainer housing. To remove, pull it straight out of the strainer housing.)
There will be a gasket or O-ring sealing between the motor mounting bracket and the strainer housing. Inspect this thoroughly and replace if necessary. An economical option would be to purchase a Go-Kit which includes the pump shaft seal and all necessary o-rings, gaskets and lubricant for your pump.
Step Three
Now, you can lift up the motor with bracket attached to get to the wiring more easily. There may be a bare copper ground wire attached to the outside of the motor that you will need to disconnect. Remove the cover plate on the back of the motor to get access to the wiring. You should have one green wire that is the ground wire and two other wires that are your leads. The lead wires should be black and white but could be any other color except green. Disconnect these wires (they may be attached to a screw, held down by a nut, or clipped on with a terminal clip).
Step Four
Next, you will need to disconnect the conduit (sleeve covering wires between motor and switch or junction box). This usually means unscrewing the compression nut that is screwed on the adaptor which is screwed to the motor. After unscrewing the conduit compression nut, you can pull out the wires from the motor. If you wish to reuse the adaptor, unscrew it from the motor.
Step Five
Now you must remove the impeller from the motor. Remove the volute covering the impeller if it is there. (Some are screwed on). You will need to go to the opposite end of the motor and pop off the plate covering the shaft. The shaft will either have a slot in it for a screw driver or is flattened to allow you to put an open end box wrench on it. This will allow you to unscrew the impeller. You will unscrew in the direction that is opposite to the direction that the veins point at the outside of the impeller. This is the same direction that the motor will rotate the impeller. This may look backwards but the water comes into the center of the impeller and rolls off the veins away from the impeller by centrifugal force. As you take the impeller off, be sure to note how the pump seal is positioned. We highly recommend replacing the pump seal with the purchase of a Go-Kit when replacing the motor.
Step Six
Now you can see the bolts that hold the motor mounting bracket to the motor. Unbolt these, separating the motor mounting bracket from the motor. You are ready to reverse the process to install the new motor.
Step Seven
Important Notes on Reassembly: DO NOT touch the ceramic faces of the seal; This may cause the seal to burn up and leak. Be sure to tighten the impeller completely. Be sure to wire the new motor for 110V or 220V depending on what you have. This may be a simple switch in the motor or you may need to use the wiring diagram on the motor to set for the proper voltage. (Black tracer means the white wire with a black line corkscrewing around it.) Be sure to put the volute back on, aligning properly. Be sure to reconnect the bare copper ground wire to the ground lug on the new motor. When tightening bolts, alternate tightening a few turns at a time to seat evenly or the pump may leak. Fill the strainer housing with water before starting the motor to prime system and prevent damage to seal and impeller.
More Helpful information on how to replace a pool motor
Shaft Seal installation
Clean and lubricate the impeller hub shaft and pump housing seal recess with a dilute solution of non-granulated liquid-type soap
Gently wipe the black, polished surface of the spring seal assembly with a clean, soft cotton cloth. Press the spring seal assembly onto the impeller hub with black polished surface facing away from impeller.
Gently wipe the polished face of the ceramic seat with a soft cotton cloth. Lubricate the O-ring on the ceramic seat and press it firmly and evenly into the recess of the seal plate with polished side facing out.
Place the seal plate onto the motor mounting bracket aligning the positioning lug and guide.
Replacing the impeller and diffuser
Slide the motor assembly, with the diffuser in place, into pump/strainer housing, being careful not to dislodge the diffuser.
Fasten assembly to housing using the four bolts. (Be sure housing gasket is in place.) Tighten alternately and evenly

Oct 03, 2010 | Garden

1 Answer

Need to remove the impeller


Turn off the system at the breaker,
Undo bolts for housing and separate the motor from the pump to access the impeller. Some styles of motors have a screw that is reverse threaded holding the impeller in place, if it has one , remove the screw. Once you have access to the impeller you can use a big pair of channel locks to turn the impeller. Take off the back cover of the motor or remove the plastic or metal cap that is covering the shaft. Use a wrench to hold the back end of the shaft as you unscrew the impeller.

Aug 29, 2013 | AO Smith Pool Pump Motor Hayward Swimming...

1 Answer

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.
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.

Jan 20, 2013 | Smith 2hp Pool Pump Motor A O Electric...

1 Answer

Have a Sta-Rite 1.5 hp Model #HMSF 1F - trying to get it apart to change seal- has been leaking and losing prime- four bolts hold the motor on- tried to separate there first but will not pull apart (maybe...


Remove impeller housing cover. Insert screwdriver carefully into back of motor to keep the armature from turning then unscrew impeller clockwise or opposite the direction of operation. Replace seal on impeller and pump housing. Lube seal with graphite. Replace impeller and housing cover. Remove screwdriver from motor. You should be good to go.

Sep 10, 2011 | Sta Rite 1 Hp Sta - Rite Abg Swimming Pool...

1 Answer

Need to replace pump Impeller on A.O. Smith Century Centurion Pool & Spa Duty Switchless Pump


To get to the Impeller you need to remove a series of bolts, or a large clamp, that holds the two halves of the pump together. Once you do that, if their is a diffuser (housing that goes over the impeller), remove it. To remove the impeller, you need to lock the motor shaft. You can do this a couple different ways depending on the motor. There will either be a small cap that grants access to the motor shaft on the back of the motor, or you remove a larger housing that grants access to the wiring and other components in the back of the motor. If it's the small cap, then you can hold the shaft with a wrench. If it's the larger housing, then you can slip a wrench (probably 7/16") under the thermal overload switch and onto the shaft to lock it in place. Now you can unscrew the impeller. Check to see if the impeller has a screw in the center. If so remove this first. It will be reverse thread. The impeller should spin off counter clockwise. If the impeller is very tight, be careful not to damage it. If you don't have an impeller wrench, I strap wrench, or very large locking pliers with a rag around the impeller works well. 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 11, 2010 | AO Smith Pool Pump Motor Hayward Swimming...

1 Answer

How do I get old motor off pump to install my new motor?


The front of the wet end must be removed to access the impeller. Then remove the rear electrical covering to expose the rear end of the motor shaft. Look closely at the shaft. It has two flat sides. A 12mm open face wrench will fit onto the shaft. Lock the shaft in place with the wrench and unscrew the impeller. The rear housing behind the impeller pops off to reveal four 9/16 bolts. Remove them and the motor is free. Reverse the process with the new motor.

Apr 22, 2010 | Emerson THREADED SHAFT UP RATED - 1.00 HP...

1 Answer

Replace pool motor


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...
K

Aug 05, 2009 | Hayward 2HP Pool Pump Motor A O Smith...

1 Answer

Pump disassembly


I removed the impeller on my DW761UQB. The instructions were molded into the plastic pump housing. This is how I DID MINE: Remove motor mount screws. Remove the chopper screw (screw only goes into impeller, not motor shaft). Remove chopper and rotate/remove strainer. Place socket or wrench on impeller tip and place another wrench on rear of motor's plastic fan. Unscrew fan from impeller shaft ( threads are LEFT handed, turn CW). Once fan is 'backed off' of the impeller, CAREFULLY pry the motor/fan from pump housing (impeller is attached to motor shaft via splines). Don't crack the delicate plastic pump housing. Mine was stuck, but separated with moderate force. Now remove the impeller/seals from the pump housing. This worked for MY above mentioned model, I don't know what other models it applies to. I am not a pro.

Sep 25, 2008 | Dishwashers

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