BIG ASS FANS 8'-24' Powerfoil X, Installation Manual

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8’ - 24’ POWERFOIL® X
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8’ - 24’ POWERFOIL® X
3. Attach Airfoils to Hub
WARNING: Disconnect power to the fan before installing the airfoils.
Attach the 10 airfoil retainers using the Airfoil Hardware. Moving clockwise around the fan hub, position the airfoil retainers end over
end as shown. Hole A should be positioned over top of Hole B. Do not tighten the bolts until all the airfoil retainers have been
attached!
First, tighten the bolts along the outside perimeter to 29 ft·lb (39 N·m) using a 1/2” socket with torque wrench.
Second, tighten the bolts along the inside perimeter to 29 ft·lb (39 N·m) using a 1/2” socket with torque wrench.
Airfoil Hardware Kit (BAF-Supplied):
a. (20) 5/16-18 x 2’’ GR 8 Bolt
b. (40) 5/16” Flat Washer
c. (20) 5/16-18 Nylock Nut
Hole A
Hole B
Airfoil Retainer
a
b
c
b