GSI PNEG-1177 User Manual

2.66”2.66”

2.66”

2.66”2.66”

CORR CORR

CORR

CORR CORR

UGAUGA

UGA

UGAUGA

TION TION

TION

TION TION

WINDINGWINDING

WINDING

WINDINGWINDING

STST

ST

STST

Installation Manual

15' to 60' Diameter Bins

See other details:

Appendix A - 90' to 105' Diameter Bins

Appendix B - 75' to 78' Diameter Bins
Appendix C - 60' to 72' Diameter Bins

PNEG-1177PNEG-1177

PNEG-1177

PNEG-1177PNEG-1177

Date: 04-01-06

AIRAIR

AIR

AIRAIR

PNEG-1177

1004 East Illinois Street

Assumption, IL 62510-0020

PHONE: [phone]

FAX: [phone]

PNEG-1177 2.66” Corrugation Winding Stair Page 1 of 16

Page 2 of 16

2.66” Corrugation Winding Stair PNEG-1177

CONTENTS

CONTENTS

2.66" Winding Stair Installation .....................................................................................4

Installing Wall Brackets.........................................................................................5

Installing Horizontal Step Brackets and Wall Brace ..............................................6

Installing Platform Mounting Brackets and Platform.............................................7

Step Assembly.......................................................................................................9

Step Attachment....................................................................................................9

Handrail Posts and Handrail..................................................................................11

Appendix A.......................................................................................................................14

Appendix B .......................................................................................................................15

Table of Content

Appendix C .......................................................................................................................16

PNEG-1177 2.66” Corrugation Winding Stair

Page 3 of 16

2.66" Winding Stair Installation

2.66" WINDING STAIR INSTALLATION

1) Determine which direction the steps will go around the bin. (Right or Left)

2) Determine where you want the steps to begin or end, depending on what is important. Each step will go up

10.666" and around the tank 9 3/8" (one bolt space on the horizontal seam). The 2.66" system will have 3
steps per ring. The platform will then cover 56.25" around the tank (6 spaces around the tank). The platform
is to be placed under the roof steps and half of the manway.

3) Once you have determined the start and end of the stairs, the roof can be built to match the placement of the
platform.

4) Add the second ring to the tank and stiffeners if you have a stiffened tank. Once you have two rings of 2.66"
sidewall, you can begin mounting the stairs and platform.

5) There is to be one step in the top ring and three in each of the following rings.

6) The platform and the top of the top step will be 11.75" up from the horizontal seam between the first and
second ring.

2.66” Corrugation Winding Stair PNEG-1177Page 4 of 16

2.66" Winding Stair Installation

Installing Wall Brackets :

7) The wall brackets (LDR-4082) are to be mounted to the sidewall using horizontal seam bolts. The top wall
bracket mounts to the horizontal seam in the hole shown (see diagram). Mount the bracket on the horizontal
seam bolt directly below the left side of the roof steps if the steps go to the left or below the center of the
manway if the steps will be mounted to the right of the platform.

Use this hole at the

Horizontal Seam

8) Finish attaching the top wall bracket by field drilling a hole at the top and bottom of the bracket and attach
with a 5/16" x 1 ¼” bin bolt and nut. (see first diagram)

The second wall bracket will be mounted on the horizontal seam between the first and second ring. S pace the
bracket over 9.375" (one horizontal seam bolt) and attach with the top and bottom holes in the bracket with a
5/16" x 1.1/4" bolt and nut.

Note: All wall brackets must face the same direction.

9) Continue adding wall brackets as the tank is built.

10) The bottom bracket will need to be field drilled and cut to mount and support the bottom step.The two holes
at the bottom of the bracket will be used to mount the horizontal bracket. Cut the bracket 14" long and include
the bottom set of holes. Locate the bottom of the wall bracket 38" down from the center of the horizontal
seam. Field drill the holes on the hills below the horizontal seam bolt 28 1/8" (3 spaces) over from the bracket
at the top of the bottom ring. The bottom step will hang from this bracket.

PNEG-1177 2.66” Corrugation Winding Stair

Page 5 of 16