Question about Waterway Spa Pump Executive 56 Frame 4hp Dual Speed 2" Intake 2" Discharge
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Posted on Jan 02, 2017
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...
Posted on Jun 18, 2010
I just did this.
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.
I got this far tonight and the bearing at the wet end is hard to turn and is the reason for the failure of the pump. I am not sure of the bearing can be pulled off without special equipment.
Posted on Jan 27, 2011
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Thank you for posting your question here on Fixya.com.
In general the process is the same for any brand...Disassemble the motor from the pump, lock the motor shaft at the end opposite the pump, spin off the impeller (which may be covered by what is called a diffuser), replace both halves of the seal (one is pressed into the pump housing and the other rides against or on the back of the impeller) and assemble in reverse order. If you need more specific directions, please add a comment with your question(s) or contact me using our web site at www.arrowpools.net.
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