J&D MAnufacturing MEGA STORM Manual

NOTE: Read ALL instructions over carefully before attempting 

to install the Mega Storm.

If you have any questions please call your local dealer or 

J&D Manufacturing at: 1-800-998-2398.

Or visit our website at: www.jdmfg.com

MEGA STORM

72” Fiberglass Exhaust Fan

PARTS LEGEND

WARRANTY

J&D Mfg. warrants all products are free from defects in materials and workmanship under 

normal use for the period of one year from date of purchase and our warranty does not 

cover normal or regular wear and tear. J&D Mfg can repair or replace at our option, any 

product or part of the product that is found to be defective.  Our warranty applies to 

materials only and does not include return freight, delivery, loss or damage to personal 

property, cost of removal or installation, any incidental or consequential damages or labor. 

This warranty does not apply to products which are misused, abused, altered, improperly 

installed or subject to negligence. All warranties must be approved through our warranty 

department. The original purchaser must present a copy of the invoice for the defective 

product.  One year is our standard warranty unless specified on our literature or in the 

installation instructions/user manuals.  

INSTALLATION HARDWARE IS NOT PROVIDED

IS183-09H

Construct structurally sound 76½” square finished opening.

INCLUDED ASSEMBLY HARDWARE - TO SCALE

Guard

Housing

Shutter

(10) 3/16” x 1/4"

Aluminium Rivet

(10) 3/16”ID x 1/2"OD

Washer

NOTE: Read ALL instructions over car

efully bef

ore attemp

to install the Mega Storm.

72  Fiberglass Exhaust Fan

(10) Shutter Clips

(8) Phillips Truss Bolt

5/16”-18 x 1”

(8) Nylock Flange Nut

5/16”-18

76 ½”

76 ½”

Correct orientation of fan. From the inlet side the motor will be located in 

the bottom right corner.

Motor

View from inlet 

side of fan

RECOMMENDED TOOLS FOR INSTALLATION AND ASSEMBLY  

(NOT PROVIDED)

Measuring 

Tape 

Safety Glasses

1/2" Socket

1/2" Socket

Socket Wrench

Drill

 and Drill Bits

3/16”

3/8”

Rivet Gun

FINISHED

OPENING

(Inside Dimensions)

Phillips Head

Screwdriver