Question about Polaris Pb4-60 Volute Polaris Booster Pump Part P5 P-5 Volute

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Impeller does not spin freely

I took the pump apart to replace a few parts and when i put it back together the impeller seems really tight and doesn't spin freely. Now i can't get it off either. I do i keep the shaft from spinning so i can get it off, it came off easy the first time

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Pop off the half dollar sized cap at the back of the motor and use an adjustable wrench to hold the back of the shaft. They make a tool for this but with a little innovation an adjustable will do the job fine. When puting the impeller back don't tighten it more than hand tight and don't bump the motor on to seat it, this will overtighten it. You may have crossthreaded the impeller and will need to tap it out or replace it.

Posted on Aug 24, 2009


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