Assembly instructions, Chapter 4 assembly instructions, X” series roof stairs – Grain Systems Bin Accessories PNEG-1738 User Manual

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PNEG-1738 15'-135' “X” Series Roof Stairs, Peak and Manway Guard

4. Assembly Instructions

“X” Series Roof Stairs

“X” Series Roof Stairs - Quantity of Stair Sections

The chart above shows the number of each roof stair section required to fit the roof of a bin.

Diameter

Bottom 3 Step

3 Step Section

4 Step Section

15'

1

1

0

18'

1

0

1

21'

1

2

0

24'

1

0

2

27'

1

3

0

30'

1

3

0

36'

1

4

0

42'

1

4

1

48'

1

6

0

54'

1

5

1

60'

1

6

1

72'

1

6

2

75'

1

9

0

78'

1

7

2

90'

1

9

2

105'

1

13

1

135'

1

17

0