An awesome, educational video about moving an extremely heavy object out of building from a floor some distance above ground. The key is use components and tools which are small and light enough to be moved with small cranes. The final lifts are done with specially adapted jacks and custom made bridge pieces. Mammoet did a lift much larger than this when it pulled the cutter head from the Tunnel Boring Machine Bertha in Seattle up out of a pit and then moved it over and put it down. The cutter head weighed 1300 tons. The cutter head was repaired, and then replaced back on the TBM. There is a video about it.