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jburd964 09-18-2011 03:52 PM

Electric Motor cleaning
I inadvertedily got blasting sand inside a 5 hp 220 electric motor. I don't think it's much, but would like to take it apart and clean. Whats the difficulty level? Would just blasting it out with compressed air be sufficient? Motors this size are pricey and would rather be safe then sorry.

joed 09-18-2011 06:16 PM

The biggest issue would be if it got into the bearings.

jburd964 09-18-2011 06:25 PM

There's only one way to hide out. You don't think it could have impact to omature are windings.

ddawg16 09-18-2011 09:45 PM

One could assume that it has sealed bearings....or should.....

5 HP? Not that heavy.....take it off what ever it's hooked up to....give it a good shake to get any sand to fall out....if little to no sand falls out....your looking good...

Then just blow it out.....

Next...give the motor shaft a turn by will know real quick if there is any sand in the wrong places......I would keep turning it by hand while giving it a good shake and roll....this will help to make sure sand falls out of all the little spots it likes to fall into.....

Next.....just run it....

You really don't want to be taking it apart.....

mpoulton 09-19-2011 02:41 AM

Don't take it apart. It's pretty darn hard to do if you're not equipped like a motor shop. I'd just blow it out with air and use it. Keep an eye on it for awhile. The bearings are the real concern. If they got sand in them, they will fail almost immediately (a day or two?) and need replaced. The bearings are cheap, but the disassembly and re-assembly suck. You'd have to do the same labor to take it apart and clean it as you would to replace the bearings so there's no point doing it as preventive maintenance.

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