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4801-5327 Rev 1-15 

Mega-Flow External Damper Fan - Unassembled  

Page 3 of 24

 

 

Limited Warranty

 

1.  Limited Warranty 

The GSI Group, LLC. (“GSI”) warrants products which it manufactures to be free of defects in materials and 
workmanship under normal usage and conditions for a period of 12 months after sale to the original end-user or if a 
foreign sale, 14 months from arrival at port of discharge, whichever is earlier.  The end-

user’s sole remedy (and GSI’s 

only obligation) 

is to repair or replace, at GSI’s option and expense, products that in GSI’s judgment, contain a 

material defect in materials or workmanship.  Expenses incurred by or on behalf of the end-user without prior written 
authorization from the GSI Warranty Group shall be the sole responsibility of the end-user. 

 

Warranty Extensions

:

  The Limited Warranty period is extended for the following products: 

 

Product 

Warranty Period 

AP Fans and 
Flooring 

Performer Series Direct Drive  
Fan Motor 

  3 Years 

All Fiberglass Housings 

 Lifetime 

All Fiberglass Propellers 

 Lifetime 

AP/Cumberland 

Flex-Flo/Pan Feeding Systems 

 2 Years 

Cumberland 
Feeding/Watering 
Systems 

Feeder System Pan Assemblies 

  5 Years ** 

Feed Tubes (1.75" & 2.00") 

10 Years * 

Centerless Augers 

10 Years * 

Watering Nipples 

10 Years * 

Grain Systems 

Grain Bin Structural Design 

  5 Years 

Grain Systems 
Farm Fans 
Zimmerman

 

Portable & Tower Dryers 

  2 Years 

Portable & Tower Dryer Frames 
and Internal Infrastructure † 

  5 Years 

 

GSI further warrants that the frame, basket and excluding all auger and auger drive components of the portable and 
tower dyer shall be free from defects in materials for a period of time beginning on the twelfth (12

th

) month from the date 

of purchase and continuing until the sixtieth (60

th

) month from the date of purchase (extended warranty period). During 

the extended warranty period, GSI will replace the frame or basket components that prove to be defective under normal 
conditions of use without charge, excluding the labor, transportation, and/or shipping costs incurred in the performance 
of this extended warranty. 

Conditions and Limitations: 

THERE ARE NO WARRANTIES THAT EXTEND BEYOND THE LIMITED WARRANTY DESCRIPTION SET FORTH 
ABOVE.  SPECIFICALLY, GSI MAKES NO FURTHER WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
INCLUDING, WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR 
PURPOSE OR USE IN CONNECTION WITH:  (i) PRODUCT MANUFACTURED OR SOLD BY GSI OR (ii) ANY 
ADVICE, INSTRUCTION, RECOMMENDATION OR SUGGESTION PROVIDED BY AN AGENT, REPRESENTATIVE 
OR EMPLOYEE OF GSI REGARDING OR RELATED TO THE CONFIGURATION, INSTALLATION, LAYOUT, 
SUITABILITY FOR A PARTICULAR PURPOSE, OR DESIGN OF SUCH PRODUCTS. 

GSI shall not be liable for any direct, indirect, incidental or consequential damages, including, without limitation, loss of 
anticipated profits or benefits.  The sole and exclusive remedy is set forth in the Limited Warranty, which shall not exceed 
the amount paid for the product purchased.  This warranty is not transferable and applies only to the original end-user.  
GSI shall have no obligation or responsibility for any representations or warranties made by or on behalf of any dealer, 
agent or distributor. 

GSI assumes no responsibility for claims resulting from construction defects or unauthorized modifications to products 
which it manufactured.  Modifications to products not specifically delineated in the manual accompanying the equipment 
at initial sale will void the Limited Warranty. 

This Limited Warranty shall not extend to products or parts which have been damaged by negligent use, misuse, 
alteration, accident or which have been improperly/inadequately maintained.  This Limited Warranty extends solely to 
products manufactured by GSI.   

Prior to installation, the end-user has the responsibility to comply with federal, state and local codes which apply to the location and 
installation of products manufactured or sold by GSI.

 

* Warranty prorated from list price: 
        0 to 3 years 

– no cost to end-user 

        3 to 5 years 

– end-user pays 25% 

        5 to 7 years 

– end-user pays 50% 

        7 to 10 years 

– end user pays 75% 

 
** Warranty prorated from list price: 
        0 to 3 years 

– no cost to end-user 

        3 to 5 years 

– end-user pays 50% 

 
  

† Motors, burner components and    

     moving parts not included. Portable  
     Dryer screens included. Tower Dryer  
     screens not included. 

Summary of Contents for Mega-Flow External Damper Series

Page 1: ...4801 5327 Rev 1 15 Mega Flow External Damper Fan Unassembled Page 1 of 24 Mega Flow External Damper Fan Unassembled Owner s Manual Cumberland 1004 E Illinois St Assumption IL 62510...

Page 2: ...5 1 Tab Cone Assembly 13 6 Attach Cone 15 7 Attach the Damper 16 8 Attach the Outside Fan Guard 17 8 1 36 48 52 and 54 Fan PVC Coated Guard Assembly 17 8 2 54 Fan Guard Assembly 17 9 Attach the Door S...

Page 3: ...arranty Conditions and Limitations THERE ARE NO WARRANTIES THAT EXTEND BEYOND THE LIMITED WARRANTY DESCRIPTION SET FORTH ABOVE SPECIFICALLY GSI MAKES NO FURTHER WARRANTY OF ANY KIND EXPRESS OR IMPLIED...

Page 4: ...As National Wiring Regulations And Accident Prevention Regulations Particular Attention Must Be Given To The Cross sectional Areas Of Conductors The Selection Of Fuses Or Other Protection And Protect...

Page 5: ...an Size Fan Model Width Height 36 Mega Flow External Damper 43 00 109 22 cm 43 00 109 22 cm 48 Mega Flow External Damper 55 00 139 70 cm 55 00 139 70 cm 52 Mega Flow External Damper 57 00 144 78 cm 57...

Page 6: ...8 10 mm Socket head bit Phillips head screwdriver 4 Assemble Fan 1 Refer to Figure 1 Assemble the Pillow Block Bearings 1016 0100 to the Pillow Bearing Mount 0404 5104 with four Cap Screws 1004 3054...

Page 7: ...rtical Mounting Bracket 0404 7587 52 and 54 Fans Only Bearing Pillow Assembly Lock Nut 3 8 1001 1457 Motor Mounting Bracket 0404 3700 Bolt 3 8 16x1 1002 2374 Sheave Idler Assembly 1011 9005 Screw 3 8...

Page 8: ...to the inside face of the orifice at top and bottom Attach cone support bracket to top panel using bolts 1002 2374 and lock nuts 1001 1457 8 52 and 54 Fans Refer to Figure 4 Attach the Internal Fan As...

Page 9: ...18x3 4 CARRIAGE BOLT 1022 3107 COG BELT 1040 0105 TENSION DRAW LATCH 1005 5006 3 16 AD62 RIVET MF 36ED 0404 10056 1001 1735 5 16 18 LOCK NUT INTERNAL BELT TENSIONER ASSEMBLY MF 36ED 0404 10054 MF 36E...

Page 10: ...2 RIVET SEE CHART 1040 0105 TENSION DRAW LATCH 1002 2373 5 16 18x3 4 CARRIAGE BOLT 1022 3107 COG BELT 1001 1735 5 16 18 LOCK NUT INTERNAL BELT TENSIONER ASSEMBLY 1001 1457 3 8 16 LOCK NUT MF 52ED 0404...

Page 11: ...in Step 13 13 See Figure 4 Adjust the Belt Tensioner so the third mark on the tensioner is in line with the center of the vertical post 14 Align the Pulleys using a straight edge as shown in Figure 5...

Page 12: ...Washers 8 6403 3050 6403 0147 6403 0156 6403 0135 PVC Coated Cone Guard 1 0006 5029 0006 5029 0006 5029 0006 5029 PL Sheet Metal Plug 3 8 ID 2 1001 1446 1001 1446 1001 1446 1001 1446 1 4 20 Lock Nuts...

Page 13: ...s together Nuts must be located on the outside of the cone assembly Do not tighten nuts Refer to Figures 9 11 d Once four 4 cone panels are assembled stand assembly up on large radius side Refer to Fi...

Page 14: ...4801 5327 Rev 1 15 Mega Flow External Damper Fan Unassembled Page 14 of 24 Nuts on outside of cone assembly Figure 10 Figure 9...

Page 15: ...crew mounted on the Fan housing See Figure 12 Screw can be fastened with 1 4 20 lock nut if necessary not included c Slide the cone over the outside of the orifice throat Using four 1 4 20 x Truss Hea...

Page 16: ...ts lock nuts and washers provided to attach ring to cone Washers go on outside of cone See Figures 14 and 15 NOTE Check the ring mounting from the side of the fan The ring is slanted to allow the forc...

Page 17: ...PVC Coated Guard Assembly For the 36 and 52 Fans install the Outside Fan Guard using four 3 8 16 x 1 1 4 bolts and nuts and washers See Figure 18 See Figure 19 below for the 48 Fan Guard assembly whic...

Page 18: ...larity 9 Attach the Door Stop Assembly 9 1 36 48 52 and 54 Bumper Rod Door Stop Assembly Install the Bumper Rod as shown by attaching the hooked end of the Bumper Rod into the tab at the bottom of the...

Page 19: ...y depending on the fan size and motor power ratings Refer to Figure 21 10 2 Wire Guard Installation 2 Assemble the Inlet Frame using 12 rivets 1005 1464 Refer to Figure 22 Place the Screen Guard into...

Page 20: ...ugh See Figure 24 5 There are two pre cut drain holes in the bottom of the fan housing in either corner and one in the bottom center of the cone These may be opened if necessary See Figure 24 6 Affix...

Page 21: ...0V VAC 3 Prong X US 240V VAC 3 Prong Power Supply Option 126 120 VAC 60hz S SinglePhase 246 240 VAC 60hz T Three Phase 245 240 VAC 50hz Motor Option 1 Horse Power 25 50 75 1 0 1 5 2 0 2 Speed Option O...

Page 22: ...ermally Protected Motor 1011 2638 AK 39 MA 38x5 8 3017 3102 WEG 1 5 hp 3ph 230 460V 50 60hz 1011 2650 SHEAVE AK41x5 8 3017 3080 Weg 1775rpm 1hp 1ph 240v 50 60hz 1011 2648 SHEAVE AK44 MA43x5 8 3017 310...

Page 23: ...4801 5327 Rev 1 15 Mega Flow External Damper Fan Unassembled Page 23 of 24 NOTES...

Page 24: ...4801 5327 Rev 1 15 Mega Flow External Damper Fan Unassembled Page 24 of 24 Copyright 2015 by The GSI Group LLC Printed in the USA...

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