Bigassfans Basic 6 - Installing Airfoils; Attach winglets to airfoils; Attach airfoils to hub

12’–24’ BASIC 6
®
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22 Installing Airfoils
WARNING: Disconnect power to the fan before installing the airfoils.
1. Attach winglets to airfoils
Attach the winglet to the airfoil using the Winglet Hardware as shown.
Both a Phillips head and at head screwdriver are required to properly
secure the fasteners. Attach winglets to all six airfoils before attaching
the airfoils to the fan.
Winglet Hardware (BAF-Supplied):
a. (6) 10-24 x 3/4” Barrel
b. (6) 10-24 x 1/2” Bolt
2. Attach airfoils to hub
Slide airfoils onto the tabs of the fan hub. The airfoils must be attached to the fan hub with the curved sides facing downward.
Attach the six airfoil retainers with the Airfoil Hardware. Moving clockwise around the fan hub, position the airfoil retainers end over end
as shown. Hole A of the retainer should be positioned over top of Hole B. Do not tighten the bolts until all the airfoil retainers have been
attached!
Tighten the bolts along the outer perimeter to 29 ft·lb (39.3 N·m) using a torque wrench and 1/2” socket. After the outer perimeter bolts
are torqued, tighten the bolts along the inner perimeter to 29 ft·lb (39.3 N·m) using a torque wrench and 1/2” socket.
Airfoil Hardware (BAF-Supplied):
a. (12) 5/16-18 x 2’’ GR 8 Bolt
b. (24) 5/16” Flat Washer
c. (12) 5/16-18 Nylock Nut
b
c
a
b
Hole B
Hole A
Airfoil Retainer
a
b
Big Ass Fans recommends completing electrical installation (page 23) before installing the airfoils.