Adjusting Already Installed Attic Fan
#1
Adjusting Already Installed Attic Fan
Attic fan belt broke. Replaced the belt, but now one or more fan blades scrape against small motor box which is permanently screwed into frame. Perhaps not locating it, but don't see an obvious place to make adjustment.
Initially tried gently bending the one blade that was scraping. This seemed to provide clearance. But after a minute of running fan, 3 blades were now scraping.
Initially tried gently bending the one blade that was scraping. This seemed to provide clearance. But after a minute of running fan, 3 blades were now scraping.
#2
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Join Date: Sep 2003
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My wild and crazy guess is you didn't correctly replace the belt.
Don't loosen and 'adjust' the fanblade shaft, you need to loosen the motor mount and slide that around for adjustment.
Never bend the blades, that's a formula for failure.
Don't loosen and 'adjust' the fanblade shaft, you need to loosen the motor mount and slide that around for adjustment.
Never bend the blades, that's a formula for failure.
#3
Join Date: Aug 2002
Location: Mountain Williams Missouri
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You sure you got the same belt size?????? Like steve said move the motor over dont bend the fan blades. should be able to like push the belt in a 1/4" in the center of it when on the pulleys.
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