Installing the 6–hole intermediate purlins, Chapter 7: roof assembly – Grain Systems Tanks PNEG-4060A User Manual
Page 109
Figure 7-25 Attaching the rafter to the eave bracket
A
A-frame rafter assembly
D
7/16 in. flange nut (S-10251)
B
7/16 x 1-1/4 in. flange bolt (S-10250)
E
Hole for alignment tool
C
Eave bracket (CTR-0498)
After You Finish
Continue to the next A-frame installation until all of the A-frame rafter assemblies are installed. See
Temperature Cable Brackets and A-Frame Assemblies, page 85
.
Installing the 6–Hole Intermediate Purlins
Intermediate purlins must be installed to connect each A-frame roof rafter assembly together. The inter-
mediate purlins connecting each A-frame roof rafter assembly have six holes on each side to secure them
with the purlin clips.
Before You Begin
All A-frame roof rafter assemblies must be installed and secured to both the center collar and the eave
brackets.
1. Install the intermediate purlin (A) to the purlin clips (B and D) located outside of each A-frame roof
rafter assembly (E).
2. Install six flange bolts (C) and six flange nuts (F) to each end of the purlin (A) securing the intermedi-
ate purlin to the purlin clips.
3. Tighten the hardware to the recommended torque specifications. See
Pneg-4060A 60 Ft Diameter 40-Series Bin
109