
Table 8-1
A-frame installation sequence and temperature cable locations for 60 ft diameter bin (cont'd.)
A-frame number
Rafter Number
Temp Cable Number
Radius Location
R5
T4
20 ft
A8
R14
—
—
R15
T9
20 ft
A9
R18
—
—
R19
T11
20 ft
A10
R8
—
—
R9
T6
20 ft
NA
Attach to center collar
T1
3 ft
NOTE:
A-frames labeled “A1” through “A4” have X-bracing and are installed first. A-frames labeled “A5”
through “A10” are standard A-frames. The empty spaces that are not labeled must have purlins
installed between the rafters after all the A-frames are secured. The numbers reflect the recom-
mended installation sequence of the A-frame assemblies.
Table 8-2
Starting lengths for temperature cables for 60 ft diameter bins
Length from the center collar
179.80 in. (434.06 cm)
Length from 20 ft diameter location
58.1 in. (147.57 cm)
The temperature cable lengths in the chart above are the distances from where the temperature cable
attaches to the rafter or the center collar to the top ring. To calculate the correct temperature cable length,
add 32 inches for each bin ring to the starting length. Temperature cables must terminate above any
unload equipment and be secured in place with twine. DO NOT allow cables to become tangled in unload
equipment.
Assembling the Temperature Cable Bracket
The temperature cable brackets are installed to the roof rafters and support the temperature cables.
Before You Begin
Determine the correct location of the temperature cable brackets within the structure of the A-frame
Assembly. See
About Temperature Cable Brackets and A-Frame Assemblies, page 89
.
What You Should Know
The A-frame assembly consists of two roof rafters, purlin clips, purlins and possibly X-bracing. The tem-
perature cable brackets should be installed when the A-frames are assembled.
NOTE:
The temperature cable bracket must be installed at specific locations, see
Cable Brackets and A-Frame Assemblies, page 89
1. Attach a right purlin clip (C), a left purlin clip (D) and a temperature cable bracket (B) to the roof
rafter (A) and install two flange bolts (E) and two flange nuts (F).
NOTE:
If no X-bracing is installed, install three flange bolts (E) and three flange nuts (F).
2. After all purlins and X-bracing are installed in the A-frame, tighten all hardware to the recommended
torque specifications. See
Bolt Torque Specifications, page 22
.
Pneg-4460A
60 Ft Diameter 40-Series Bins
91