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Old 12-16-2015 | 10:09 AM
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basimpsn
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From: Mia, FL
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Originally Posted by Alkaline
Has anyone heard of this test? Place your house key (without the key ring) on top of your turbine, if at full power the key falls off the turbine you need to have your bearings checked or your turbine is out of balance. What amount of vibration is considered OK?

I tried this test above on a JB-220 and the keys stayed in place.
I saw this test done with a heavy duty screw driver place on the case close to the cone or the compressor. Saw this at RAM.
The screw driver vibrate at the tip and won't stay still. then you hear "backward masking voice lol" just kidding about the backward masking voice part
Last edited by basimpsn; 12-16-2015 at 10:14 AM.
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