Installation Guide

BIG ASS FAN 2025

8. Secure safety cable (to main fan unit)

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CAUTION: The main fan unit is heavy. Use caution when raising it.

Raise the main fan unit directly from its packaging to the extension tube. Route the three (3) sets of wires from the main fan unit up

into the bottom of the extension tube and out the rectangular access hole near the bottom of the tube. Ensure the wires are positioned

inside the grooves on the motor shaft. Note: Wiring not shown in the illustrations below.

While supporting the main fan unit, secure the safety cable to the motor shaft using the Safety Cable Hardware as shown. Insert the

clevis pin through the safety cable lug and motor shaft, and then insert the straight leg of the cotter pin into the small hole on the clevis

pin.

Safety Cable Hardware (BAF-Supplied):

a. 5/16” Clevis Pin

b. Cotter Pin

Cotter pin inserted into clevis pin

Route wires from main

fan unit out here

Safety

Cable

9. Attach main fan unit (to extension tube)

CAUTION: The main fan unit is heavy. Use caution when

raising it.

CAUTION: Be careful not to pinch the fan wiring between the

extension tube and main fan unit during installation.

CAUTION: Do not discard the main fan unit packaging and

foam. It should be used if the fan is ever moved or relocated.

Attach the main fan unit to the extension tube using the Main Fan Unit

Hardware as shown. Note: Wiring not shown in the illustration on the

right.

Tighten the hardware to 25 ft·lb (33.9 N·m) using a 6 mm Allen wrench

and a torque wrench with a 13 mm socket.

Main Fan Unit Hardware (BAF-Supplied):

a. (2) M8 x 75 mm Socket Head Cap Screw

b. (4) M8 Flat Washer

c. (2) M8 Nylock Nut

Installing the Fan (cont.)

Safety

Cable