Installation Guide

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BIG ASS FAN 2025
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7. Attach upper mount (to angle irons)
Secure the upper mount (with extension tube and upper mounting brace already attached) directly to the angle irons using the Mounting
Hardware as shown. Consult the diagrams below for distances between the angle irons. Tighten the hardware so that it is snug, but
do not torque.
Mounting Hardware (BAF-Supplied):
a. (4) M10 x 40 mm Hex Head Cap Screw
b. (8) M10 Flat Washer
c. (4) M10 Nylock Nut
Installing the Fan (cont.)
c
b
b
a
Side View
Note: Dashed lines represent angle irons.
5 1/2” (14.6 cm)
5 1/2” (14.6 cm)