Attach Upper Mount (To Angle Irons) - BIG ASS FANS Isis Guide D'installation

5. Attach upper mount (to angle irons)

Secure the upper mount directly to the angle irons using the Mounting Hardware as shown. Consult the diagrams below for distances
between the angle irons. Tighten the Mounting Hardware to 25 ft·lb (33.9 N·m) using a torque wrench with a 17 mm socket.
Note: If desired, the upper mount and extension tube can be pre-assembled. DO NOT tighten the bolts until the fan is installed and
hanging freely to allow for balancing.
Mounting Hardware (BAF-Supplied):
a. (4) M10 x 40 mm Hex Head Cap Screw
b. (8) M10 Flat Washer
c. (4) M10 Nylock Nut
5 1/2" (13.97 cm)
Note: Dashed lines represent angle irons.
Mounting Structure: Bar Joists (cont.)
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