Grain Systems Bin Accessories PNEG-1615 - Manual (Page 7)

PNEG-1615 Heavy Duty Bin Stairs and Platform Assembly for 4.00" Corrugated Bin 7
2. Installation
Platform Wall Brackets, Stair Wall Brackets and Knee Braces
1. Determining the layout of the bin stairs. (See Figure 2A.)
Figure 2A Bin Bolt Spacing
2. Locate the platform directly under the roof ladder and manway hole. The location of the platform and
manhole must be pre-determined so that the stairs will not interfere with auger, doors, fans, etc.
To determine the stair locations, count the number of bolt spaces around the bin according to the
chart
on Page 8 . This will give the ending location of the stairs. Each step is 8" tall and wraps around
the bin one bolt spacing or 9-3/8". NOTE: One bolt spacing is the distance between the bolts on
the horizontal seams, which is equal to 9-3/8". On a 4.00" (44" sheet) corrugated bin, the first ring
will have the platform at 16" below the eave and a four (4) step section directly below the platform.
3.5 of these first four (4) steps will be within the first ring. There are 5.5 steps for each ring there after
and the (5.5) stairs wrap around the bin (5.5) bolt spaces or 51.5625" per ring. The stairs will be
assembled in four (4) step sections. Use the chart
on Page 8 to determine how many bolt spaces
you must allow for the steps during installation.