GSi RFS-1000, Руководство по установке

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2
Roof Stairs
Topics Covered in this Chapter
▪ General Information
▪ Assembling the 3-Step Stairs Section
▪ Assembling the 4-Step Stairs Section
▪ Assembling the 8-Step Stairs Section
▪ Assembling the Roof Stair Sections
▪ Installing the Roof Stairs
▪ Installing the Handrails
General Information
Roof Stairs may consist of a combination of 3-step, 4-step and 8-step sections (varies with diameter)
which are spliced together before being installed onto the roof.
Refer to the table for stair step sections used for different bin diameters.
Table 2-1 Stair step sections
Bin Diameter (ft.)
No. of 3-step stair
Section
No. of 4-step stair
Section
No. of 8-step Stair
Section
12 1 *
– –
15
–
1
–
18 2
– –
21 1 1
–
24 3
– –
27 2 1
–
30 1 2
–
33 0 3
–
36 2 2
–
42 3
–
1
48
–
1 2
54 3 1 1
60
– –
3
66 3
–
2
72
–
1 3
75 2
–
3
78 1 1 3
90 2
–
4
105 3 1 4
135 2 1 6
156
–
1 8**
* RFS-1012 is a 3-step stair section used only for 12 ft. diameter bin.
** RFS-1005 is a 8-step stair section used only for 156 ft. diameter bin.
PNEG-2062 12'-156' Diameter Bin Roof Stairs 15