Side View - BIG ASS FANS Basic 6 Guia De Instalacion

2. Drill angle irons
Drill two Ø9/16" (14 mm) holes exactly 5-1/2" (140 mm) apart in the centers of two angle irons.
Measure the distance between the roof structure mounting points that the angle irons will span. Measure the
same distance on the angle irons and drill a Ø9/16" (14 mm) hole through each end of the angle irons. Drill holes
in the ends of two angle irons if the span is 8 ft (2.4 m) or less. Drill holes in the ends of four angle irons if the
span is greater than 8 ft (2.4 m).
A
Ø9/16'' (14 mm)
1/2 A
5-1/2'' (140 mm)
Distance between roof structure mounting points
3. Fasten angle irons together (if span is > 8 ft [2.4 m])
If the angle iron span is 8 ft (2.4 m) or less, skip to step 4.
If the angle iron span is longer than 8 ft (2.4 m), use double angle irons. Locate the center of the angle irons. Drill
a Ø9/16" (14 mm) hole in the center of the vertical wall of each angle iron. Drill a total of four angle irons.
Place two drilled angle irons back to back and fasten them together with Grade 8 hardware. Align the angle
irons to each other and tighten the bolts to 40 ft·lb (54.2 N·m) using a torque wrench and 3/4" (19 mm) socket.
Repeat this step for the remaining two angle irons.
c
b
Grade 8 Angle Iron Hardware (Installer-Supplied):
a. (2) 1/2-13 GR 8 Bolt
b. (4) 1/2" GR 8 Washer
c. (2) 1/2-13 GR 8 Nylock Nut

Side View

b
a
40 ft·lb (54.2 N·m)
6
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