Installing the 6–hole intermediate purlins, Chapter 7: roof assembly – Grain Systems Tanks PNEG-4090A User Manual
Page 106
Installing the 6–Hole Intermediate Purlins
Intermediate purlins must be installed to connect each A-frame roof rafter assembly together. The inter-
mediate purlins (purlin 1 and purlin 3) connecting each A-frame roof rafter assembly has six holes on each
side and are unique than the other purlins installed at the other locations of the roof assembly.
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
.
Figure 7-28 Exploded view of the 6–hole intermediate purlin
A
Purlin (CTR-0430 and CTR-0432)
D
Left Purlin clip (CTR-0099)
B
Right Purlin clip (CTR-0100)
E
A-frame roof assembly
C
1/2 x 1-3/4 in. flange bolt (S-10252)
F
1/2 in. flange nut (S-10253)
After You Finish
Repeat this procedure only for the remaining intermediate purlins (purlin 1 and purlin 3) at the other loca-
tions of the roof assembly.
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Pneg-4090A 90 Ft Diameter 40-Series Bin