Grain Systems Tanks PNEG-4021 - Manual (Page 68)

68 PNEG-4021 40 Series 18', 21' and 24' Diameter Bins
7. Base Angle Installation
Installing the Base Angle
Installing the base angle ring will help reinforce and seal the final ring.
What You Should Know
The base angle overlap should be offset two (2) holes from the stiffener. Do not place overlap in line with
the stiffener.
1. Place a section of the base angle (B) to the bottom portion of the final ring (A).
NOTE: The sidewall sheet will sit on top of the base angle with the vertical portion of the base angle
on the inside of the bin. And each end of the base angle will connect to the next base
angle section.
2. Install bolts (C) and nuts (D) as shown, but leaving the end holes of each section unfilled until the
next section is to be installed.
3. Attach the next base angle section overlapping the end holes (E) and install bolts (C) and nuts (D).
4. Repeat this procedure for the remaining base angle sections (B) over lapping the previously installed
base angle section.
5. Before the bolts (C) are tightened, push the base angle tight against the bottom edge of each sheet.
6. Tighten the hardware to the recommended torque specifications, see bolt torque specifications
on Page 25 .
7. Before lowering the bin, apply the optional mastic sealer strip (F) to the entire underneath side of the
base angle.
NOTE: If optional mastic sealer strip is not used, it is recommended that some other method should
be utilized to seal the base ring to the concrete.
8. Lower the bin onto the foundation and check for an adequate seal. (See Figure 7A.)
Figure 7A Exploded View of Base Angle (View from inside the bin.)