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Reply by Fred Hargis

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Posted on Harbor Freight 2 hp dust collector questions

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Fred Hargis

6985 posts in 3574 days


#1 posted 03-06-2021 01:49 PM

I assume the overload issue is created by causing the impeller to spin faster than the motor RPM, in effect causing the motor to run outside it s design parameters. Is that a correct assumption?

- Jim2020

I don’t think that’s the correct assumption. I believe (without having seen the nubs video) what you have is the first blower is cramming much more air into the second that it’s exceeding it’s (the second blower) ability to handle it. That slows the impeller down, much like the effect you feel when trying to run through water. That slowdown caused the motor to draw more current to get up to it’s stated speed. That overload heats things up, then melts things down. This is all guesswork on my part, I just can’t see a reason to try and hook up 2 of them. Someone else may have a better (or different) take on this and chime in.

-- Our village hasn't lost it's idiot, he was elected to congress.


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