What’s wrong with this picture?

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The cause of some serious vibration in a packaged Rooftop A/C unit at a Costco warehouse. It ruined the bearings and sheave as well.

NOTICE THE MISSING VANES ON THE BLOWER….they were never found inside the unit..

2 thoughts on “What’s wrong with this picture?”

  1. I’m curious, do the missing vanes line up with the location of the set screw? Does the rim show signs that the missing vanes were part of the original wheel? Was this a misguided attempt to “balance” the rascal? LOL!

    1. Oops! Quite frankly, I am not sure about the alignment of the set screw. That would have been a good thing to check on had we not thrown it in the dumpster. Thanks for the input.

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