Grain Systems Tanks PNEG-4075 - Manual (Page 94)

Chapter 7: Roof Assembly
Assembling the Center Collar
The center collar assembles each A-frame roof rafter section together at the top.
Before You Begin
Determine the correct orientation of the center collar in relation to any stairs or conveyor systems. Each
half of the center collar (A) has drilled holes for the installation of the cap plate and side plates that will be
installed later. For this procedure, each half of the center collar needs to sit securely on stands or suitable
blocks, allowing plenty of room to access the bolts on the bottom side of the assembly.
1. Locate each half of the center collar (A), and install the center collar splice plate (D) to the inside por-
tion on the center collar.
2. Install flange bolts (E) and flange nuts (B) to the six center holes (H) located on the center collar
splice plate (D).
NOTE: The remaining open holes along the outside edge of the center collar splice plate (D) will be
used when installing the A-frame rafters to the center collar (A).
3. Install the second center collar splice plate (F) to the underside of the center collar (A), and install
flange bolts (C) and flange nuts (G).
Figure 7-18 Center collar assembly
A Center collar (CTR-0217 and CTR-0233) E 1/2 x 1-3/4 in. flange bolt (S-10252)
B 1/2 in. flange nut (S-10253) F Center collar splice plate (CTR-0023)
C 1/2 x 1-3/4 in. flange bolt (S-10252) G 1/2 in. flange nut (S-10253)
D Center collar splice plate (CTR-0208) H Inner holes
94 Pneg-4075 75 Ft Diameter 40-Series Bin