Furnace Belt Tauntness?

[Jimi]

Hi Folks,

Is there a 'rule of thumb" that a person can go by adjusting the tightness of the fan belt. I'm afraid of overtightening and taking out fan bearings....any tips?...Thanks....Jim

[Tony Hwang]

Hi, Bronze sleeve bearing needs very loose belt tension, just not enought to slip. Otherwise it'll cause premature wear of the the sleeve.

[PaPaPeng]

The weight of the hinged blower motor should tension the fan belt just enough to turn the squirrel cage without slipping.