[TheForge] A Balancing act

[Ron Childers]

Use the goblet test to check for vibration first; clean it good and try again. The fan could be scraping the housing. 

-----Original Message-----
From: TheForge [mailto:theforge-bounces at mailman.qth.net] On Behalf Of Steve Bloom
Sent: Tuesday, March 03, 2015 4:11 PM
To: TheForge
Subject: [TheForge] A Balancing act

Greetings all...

I have a large (~18" diameter) Champion blower ("snail" configuration, driven by external shaft & motor) that I have been using as a dust/grind removal unit for years.  The sound level has gotten to be a concern.  I done the easy stuff -- check and align pulleys, grease the pillow blocks, tension the belt) - all to no avail.  I suspect the problem is out-of-balance fan.  I intend to rip it apart in the next few days and try to quiet the beast.  I was wondering if any of you have words of wisdom about just how to check the balance and then adjust it.

Steve Bloom (Ironflower Forge)
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