REASSEMBLED WET END OF WATERWAY PF401A22C-LEAKS- NEED DIAGRAM

Waterway Executive 56 Spa Pump, 5 HP, 230V
Waterway Executive 56 Frame spa pump wet end
assembled to a 56 frame, 5hp, 2-speed 230V spa motor
This Spa pump has a 2-1/2 inch intake and a 2 inch discharge for plumbing
(but measures 3-1/2 inch and 3 inch- see bottom of this page)Manufacturer Part No. 3722021-13 Other Part No. PF-50-2N22C
Features:

• Executive spa pump wet end designed specifically for 56-frame spa motors
• Two double shielded ball bearings with moisture resistant grease for quieter operation and longer life
• Two speed spa motors have four sets of insulated windings for increased efficiency
• 56 frame spa motor for added strength, cooler operating temperature and longer motor life
• Large 2-1/2 inch intake for improved flow performance and reduced noise
• Large 6-1/2" diameter wet end for higher head pressure
• Split capacitor, (start and run) for less energy consumption
• Thermally protected to extend life expectancy of hot tub motor
• Highly versatile wet end can be rotated every 90 degrees
• Viton seals
• Three year manufacture's warranty on spa motor and spa pump wet end

There is no fuse in the pump itself. Pump fuses are located in the control pak where the pump cord is attached. Turn off the power to the spa and remove the cover of the pak. There is usually a diagram of the board showing where the fuses are. Pump fuses are not clear they are about 1 1/4" long and have a label on them with the rating of the fuse. Usually 20 or 25 amps and either SC or AG rating

To remove the impeller you first take the front face plate off to expose the impeller. Then isolate the shaft from the motor with a pair of needle nose vise grips and using a pair of channel lock pliers grip the end of the impeller and rotate counter clockwise to un thread it from the shaft. If the shaft seal has been leaking there may be to much corrosion to turn the impeller in which case it needs to be broken off.

I had that happen when the spa was off for 10 days. I took the pump and wet end out, and managed to turn the shaft to free it. It has rusted up in place.
6 months later it started the loud noise and started getting worse - the motor bearing at the wet end was seizing up. I replaced motor and wet end just in time.

Take the screws off the outer cover fo the wet end. That will expose the impeller.
At the other end of the pump is a small metal cap in the middle. Pry that off with a screwdriver. That reveals the shaft of the motor which has a slot in it. This allows you to hold the shaft still with a large screwdriver.
While someone holds the shaft with a big screwdriver, you rotate the impeller counter clockwise to unscrew it off the motor shaft.
In my case the impeller was so caked onto the shaft with rust that we could not loosen it. We broke the impeller and still could not unscrew it. The screwdriver keeps jumping out of the slot in the shaft.
So the next step was to take the shaft out of the motor. On the far end of the motor are 4 small looking bolt heads. Undo those. They go right through the motor into the 4 legs of the wet end.
Stand the motor up with the wet end up. Pull hard to pull the wet end motor cover off the motor and you will then have the wet end and armature of the motor in your hands. Heavy.
Place some wood into a large vice and then grip the big silver part of the armature in the vice. Then unscrew the impeller.

remove pump and wet end from spa
remove outer cover of wet end (small screws)
the impeller will be exposed.
remove any obstructions and then free it up by turning it
if it wont turn motor may be seized
replace cover, etc.

Waterway did change the wet ends slightly (the difference is only minute and you wouldn't realise without meausring) and if yours is the older version you may need to change the entire wet end.

I'd advise you to take the pump to someone who can advise you and perhaps consider changing the entire wet end so that you have a new mechanical seal too.

If you're in the UK I can possibly help but I suspect that you're in the US...
http://hottub.synthasite.com

Regards,
Ian.

I have a executive 56 frame 4 hp water way motor - PF-40-2N22C. Wet end was leaking at shaft, had it fixed and now the motor won't rotate at all. shaft is free it just hums. Checked supply voltage and the voltage at the connector. All is ok, what do i do now.