Grain Systems Tanks PNEG-1070 - Manual (Page 44)

44 PNEG-1070 15', 18', 21', 24', 27' and 30' CHT’s
8. Lifting Jack
Lifting Jack Usage
Always consider the location of the door and other accessories prior to erecting the bin. 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 8A Anchor Jacks Securely
Anchor all jacks securely with metal stakes and cable. 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 previously assembled rings from
bowing
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. Next, 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., should 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.