Grain Systems Bin Accessories PNEG-1177 - Manual (Page 5)

PNEG-1177 2.66” Corrugation Winding Stair Page 5 of 16
2.66" Winding Stair Installation
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.
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. Space 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.
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.
Installing Wall Brackets :
Use this hole at the
Horizontal Seam
Note: All wall brackets must face the same direction.