How to separate motor from 1/2 HP sprinkler pump?

https://www.pentair.com/en-us/products/residential/water-supply-disposal/water-supply-pumps/pentair-flotec-fp5172-thermoplastic-sprinkler-pump-1-5-hp.html

check ac load

CHECK POWER AT THE PUMP, MOTOR BUZZES ? YES CHECK TO SEE IF ROTOR TURNS, YES CLEAN START SWITCH, HAVE CAPACITORS CHECKED , NO ROTOR DOESN'T TURN MOTOR WILL NEED TO BE SERVICED. ROTOR MAY HAVE RUSTED TO STATOR OR LOCKED UP BEARING .. JAY THE POOL PUMP MOTOR REPAIR GUY IN LONGWOOD FL

change it

If you replaced your sprinklers, did you use the same size nozzles as the original heads?
I need more information and I can help you with a well/sprinkler system problem.
Gary

be safe change the motor

The pressure switch needs to be sized for the pressure and the motor current. The pressure would depend on your piping system, and hao many sprinklers you have on a section. You can buy a pressure switch that is adjustable, and you can set the pressure you need. You also must be sure the current rating (amps) of the pressure switch can handle the motor current (amps) there are is a wide range of switches available. You can't go wrong with a square d though. Available Home Depot, graingers, electrical supply etc.

Try these for a 'stock' 2-1/2 HP irrigation pump...

Sta-Rite DS3

Berkeley (same basic pump as Sta-Rite)

Flint & Walling also makes a very good pump.

green to srcew on the motor. this is ground.,
Black on T1
Red on T2

If the rotation is going the wrong way, simply switch the black to T2
Red to T1.

Check this before you couple it to the pump..

yes its part of your starting ciruit no way to turn by hand?.