Installation Guide

17
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BIG ASS FAN 4900
Hanging the Fan
1. Attach extension tube (to upper yoke)
Fasten the extension tube to the upper yoke with the Extension Tube Hardware
as shown. Ensure the extension tube is hanging plumb to the ground, and then
tighten the hardware so that it is snug, but not fully tightened.
Extension Tube Hardware (BAF-Supplied):
a. (2) 1/2-13 x 4-1/2’’ GR 8 Bolt
b. (4) 1/2’’ Flat Washer
c. (2) 1/2-13 Nylock Nut
2. Secure safety cable
Shackle
I-Beam mount
Secure the safety cable by wrapping it
around the I-beam and connecting the
looped ends with the shackle as shown.
The cable must be drawn tightly around
the I-beam, leaving as little slack as
possible. If possible, the shackle should
be on the topside of the I-beam. Securely
tighten the shackle.
Proceed to step 3.
Angle iron mount
(with extension tube)
Secure the safety cable by wrapping it
around the angle irons and connecting the
looped ends with the shackle as shown.
The cable must be drawn tightly around
the angle irons, leaving as little slack as
possible. The shackle should be on the
topside of the angle irons if possible.
Securely tighten the shackle.
Proceed to step 3.
Angle iron mount
(no extension tube)
Route the cable through the motor frame
and around the angle irons as shown.
Connect the looped ends of the cable with
the shackle. The cable must be drawn
tightly around the angle irons, leaving
as little slack as possible. The shackle
should be on the topside of the angle iron
if possible. Securely tighten the shackle.
Proceed to Installing Airfoils on p. 19.
The safety cable is a crucial part of the fan and must be installed correctly. If you have questions, call Customer
Service for assistance.
If the fan will be directly mounted to angle irons, skip this step and
proceed to step 2 below.
b
a
c
b