Here are some images of a job we recently completed at the DEP plant at Bowery Bay in Astoria NY.
We had to load a 17,500 pound pump from the DEP using a overhead crane then load onto one of our low boy trailers. We then brought it to the other side of the building and lowered it through a roof hatch.  Once we lowered it, we used a beam, chain blocks and a beam trolley to rig the pump onto the awaiting pad
Our crew was able to work with precision to move this unit into place.