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Emerson 29668 Blade Removal  Rate Topic 
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 Posted: Sun Oct 7th, 2018 09:20 pm
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Richard Daugird
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Can someone tell me how ?

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 Posted: Sun Oct 7th, 2018 09:40 pm
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Steve Stephens
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Remove cage.   Remove gearbox on back of motor.   Screw 1/4 x 20 screws into the to upper gearbox mounting holes with enough threads to let the screws bottom out on the rotor.   Watch you don't hit the stator windings with the screws but that "should not" be a problem.   Snug down the two screws firmly but not as hard as you can.   Looking at the front of the fan turn the blade clockwise (the way it normally runs) and the blade should unscrew.   Very often the blade is stuck on there by old hardened oils.   Dribble some penetrant down the hub from the front and let sit.   Apply some heat with a torch to the hub but don't burn the windings or get flame or too much heat into the front of the motor.  Put some good torque on the blade but not so much you cause the blade to spin on the hub where it is swaged to the hub.  Put channel locks on the hub to help and protect the finish from the jaws.   Good luck, the blade will usually come off.   Some Emersons do not have threaded holes in the back of the motor (some non-oscillators but some will have threaded holes).   In that case you'll have to try to hold the rotor from turning with a smaller Phillips head screw driver put through an upper left side vent hole (don't hit the stator windings) and try to hold the rotor from turning.

Smaller screws are used for some of the smaller Emersons.




Last edited on Sun Oct 7th, 2018 09:43 pm by Steve Stephens

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 Posted: Sun Oct 7th, 2018 10:03 pm
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Richard Daugird
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Thanks Steve!

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 Posted: Sun Oct 7th, 2018 10:56 pm
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Steve Sherwood
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Make sure you use a hardened screw or stainless steal screw. A cheap screw might bend. Then you will have another problem...

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 Posted: Mon Oct 8th, 2018 12:00 am
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Steve Stephens
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Steve Sherwood wrote: Make sure you use a hardened screw or stainless steal screw. A cheap screw might bend. Then you will have another problem...Good advice Steve and that's why I bought what I think are hardened screws as shown.  My first try using a low grade single hardware screw resulted in the screw getting bent inside the motor so it could not be withdrawn from the back.  Fortunately I did get the blade loose and removed then took the bent screw out through the front of the motor.  I think using two common (unhardened) screws might not bend but I'd rather be safe than get bent.

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 Posted: Mon Oct 8th, 2018 02:48 am
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Richard Daugird
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Thanks for the advice fellas.

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 Posted: Mon Oct 8th, 2018 05:31 am
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Andrew Block
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Richard, is this the 29668 from the meet you're working on? It's been cleaned out and serviced. Might need some oil just from sitting but should be ship-shape.

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 Posted: Mon Oct 8th, 2018 02:59 pm
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Richard Daugird
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I want to polish the blade.

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