Defence Construction Mezzanine
Jacking Towers
The object of this job was to take #1 Crane and put it on the other side of the existing 2 cranes that were in the bay. Instead of taking apart the crane and reinstalling it; we decided the best way to accomplish this move with minimum downtime for production was; to lift the crane,turn it, lower it down, move the 2 other cranes over the top, reposition it on the rails, disconnect jacking towers (capacity of lifting 800 tons), pack up and load onto trucks and go home after another job well done.
The reason we used double cylinders on each legs was to help stabilizing and eliminating twisting motion.
Set up and level jacking legs
Extend cylinders to pick up crane
Lift crane
Turning crane off rails
Lower crane so that the other 2 cranes in the background can pass over top. We had 5 feet clearance.
Lifting press out of pit to lay on its back to be load on to dollies and then relocate to new pit inside plant, pick up and re-install