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]
If this post helped you, please take the time to vote positively for me after reading this.
Thanks,
ADAM