Grain Systems Tanks PNEG-4105 - Manual (Page 85)

Chapter 7: Roof Assembly
NOTE: A-frames labeled “A1” through “A7” have X-bracing and are installed first. A-frames labeled “A8”
through “A16” are standard A-frames, and A-frames “A17” is a triple rafter assembly that will be the
final lift. 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 recommended installation sequence of
the A-frame assemblies.
Table 7-2 Starting lengths for temperature cables for 105 ft diameter bins
Length from the center collar None
Length from 10.3 ft diameter location 288.3 in. (732.28 cm)
Length from 28.3 ft diameter location 160.1 in. (406.65 m)
Length from 42.4 ft diameter location 62.5 in. (158.75 m)
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.
Pneg-4105 105 Ft Diameter 40-Series Bin 85