Motor removal on a Jacuzzi magnum force pump.

It may be easier to disconnect the power, depending on access. You can also remove the impeller, seal plate and mounting bracket. Which ever way is easier.

Turn off the power at the breaker, then reach in to the impeller and see if it will turn freely. If it does you probably only need to replace the capacitor. If it will not turn freely you'll have to remove the motor end by unscrewing the large ring that holds the motor to the wet end. Remove the small screws that hold the diffuser cover and inspect the impeller and impeller ring, sometimes known as an impeller weir or floating eye seal.
Even if you have to replace the motor this pump is worth saving if there is no damage to other components. Note: Replacement motors are easy to find, I favor Magnatek / A. O. Smith motors but any brand such as Emerson or other will do. Jacuzzi parts though are getting increasingly hard to come about.

Frank,
I could not find a manual to refer you to as jacuzzi is very proprietary with their products, they want you to pay their techs for help. I will do my best to walk you through it using the parts diagram here: http://www.poolinspections.com/manuals/pumps/jacuzzi_magnum.pdf

Disconnect power
remove pump mounting nut
seperate motor from pump
remove the diffuser which is on top of the imeller
now remove the end cap at the rear of the motor (should be 2 1/4" hex screws)
this should expose the back end of the motor shaft.
find an open ended wrench to secure the end of the motor shaft we just exposed (typically is a 7/16" wrench)
*if this unit has a center screw securing the impeller to the other end of the shaft, unscrew this by turning CLOCKWISE (this would be a reverse thread screw)
next while locking onto the end of the motor shaft with the open ended wrench, spin the impeller counter clockwise until removed. This is where you will find the shaft seal. pay attention to how it is installed.
remove shaft seal
install new shaft seal
reassemble.
Note: it is highly recommended to secure new orings while replacing this seal (unless its new)
if you attempt this and one of the o-rings has deteriorated, it will not fit back together properly.

If you need any more help or advise, please contact me @:
[email protected]

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Thanks,
ADAM

The other end of the shaft has a place to attach a 7/16 or 1/2" wrench. also, there might be a "Reverse Thread" screw in the center of the impeller that you must remove first.

If yours is the model with the big round ring around motor, it is a large retaining nut. Remove this nut and the motor should come from the pump housing. Don't be too rough, plastic breaks.

I believe the jacuzzi pump impeller has a locking screw directly in the middle of the impeller. You'll have to turn it clockwise to remove it. Then you'll need to remove the cover from the back of the motor using a 1/4" nut driver. Depending on the motor, you should be able to use a 7/16" open end wrench to hold the motor shaft from turning as you turn the impeller counter-clockwise to remove it. Some motors are different, some have a keyed shaft or require a special tool to hold the shaft while the impeller is removed. Hope this helps.

Loosen the motor and impeller from the pump by backing off the large plastic nut and take that whole section to an electric motor repair shop for inspection. If the motor is salvagable, they can quote the repair or replacement.

This could be anything from a stuck impeller to bad windings in motor. If you open the pump at the lock ring and remove the difusser from the impeller you can see if you can spin the impeller, If it won't move is it something holding the impeller up remove it. If notit is probally a bad bearing and you should replace the motor. If the Impeller turns try turning it on and caerfully try to spin before it kicks the breaker. If it is sort of stuck and does not want to turn the motor is bad and needs to be replaced. If it spins and won't start same thing, If it spins and starts it is probally a start capicator. Shut the power off at the breaker remove the back of the motor the capacitor will be a small black or silver cylinder with 2 or 3 wires clipped to it. Remove this and take it to a motor shop and get an exact duplicate. and that should fix it. When putting back together be sure to lube all "O"rings and refill with water. Hope this helps.

It's just stuck. Pull hard and carefully.

the impeller is what is holding it in on the end of motor is the impellel the impeller is in a houseing right off motor that is held togethere by screws you should disconect power then power for motor then remove water in/outtake there may be some kind of strap holding it down