Grain Systems Tanks PNEG-805 - Manual (Page 36)

36 PNEG-805 36' Diameter 40°/45° NCHT Commercial Hopper Tanks
9. Lifting Jack
Lifting Jack Usage
Give some thought before starting the bin on location of door and other accessories. Proper placement of
lifting jacks in relationship to anchor bolts could make a difference on odd or even ring bins. Attachment
of lifting brackets should be made on the stiffener row of bolts. The sidewall sheets are also staggered
1/2" from end to end.
Figure 9A Anchor Jacks Securely
Anchor all jacks securely with metal stakes and cable. Now raise the bin just high enough to assemble
the next ring. When lifting the bin, crank all jacks at an equal rate. This will prevent bowing previously
assembled rings and make for easier hole alignment. To the inside of the first ring, bolt the next ring.
Be sure to stagger the sheets and select the proper gauge material. To avoid excessive pulling of the holes
in the sidewall, some stiffener lap and splice connections may go together easier if the sidewall is not
tightened until the stiffeners have been put in place. Lower the bin on the foundation after assembling and
tightening bolts on the new ring or rings. Now, re-bolt the lifting straps to the lowest ring in place thus far.
NOTES: Add inside and outside ladders to bin walls as you continue to raise the bin.
The number of lifting jacks required is best determined by personal experience. Factors such as
bin size, soil compaction, wind velocity, jack design, etc., are all to be considered when deciding
how many to use. If in doubt, use one jack on every other stiffener (one per sheet). Be sure to
use heavy duty jacks for commercial installations.