A space between the belts should be about 1 3 4 at proper belt tension.
Attic fan belt tension.
A broken fan belt stops the motor from engaging the fan blades and must be replaced if the attic fan is to continue being used.
Once the drive belt is moved into its desired tension tighten the adjustment bolt to lock the belt in place.
Whole house fans pull air in from open windows and exhaust it through the attic and roof.
Beat the heat without breaking the bank with a whole house fan from grainger.
Here are several effective ways to measure belt tension.
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Bruce fruchter 131 419 views.
Insert the pry bar above the alternator pulley.
Apply gentle pressure upwards so that it adds tension to the drive belt.
Inspection start by inspecting the existing belt motor fan and pulleys.
These belts have a thinner cross section and lighter gauge tensile cord figure 6 making them more flexible and able to bend around small sheaves.
I d like some guidance to remove and replace the existing belt then properly adjust the belt tension.
Add tension to the drive belt.
Small house up to a 3200 sq.
Do not over tighten the belt.
Then torque the adjustment bolt to the manufacturer s specifications.
Apply from outside fan frame for all belt drive installation important.
In addition to cooling the building it also provides good attic ventilation.
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Installing a roof top attic fan duration.
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Cool a 500 sq.
1954 viking window fan belt drive duration.
Let s take a look at how to resize a belt and the steps it takes to be sure the job is done right the first time.
A properly tensioned belt ensures smooth operation and extends the service life of fans and motors.
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Check to be sure the original belt s groove size fits the pulleys and make sure the bearings shafts and set screws are in good condition and secure.
The fan may not start property if too much tension is placed on the belt.
An attic fan draws hot air out of the top of a home and vents it outside.
To test belt tension with power off squeeze belt together with light force.
Adjusting attic fan belt tension i just bought a house with a dayton whole house fan in my attic.
The fractional horsepower v belt profile is designed for light duty applications such as lawnmowers snow blowers attic or furnace fans etc.
To replace a broken fan belt remove the belt and substitute a functional one in its place.
Commercial building with the fans found here.
