Raise the table all of the way and put a block of wood between the table and spindle.
With the forktruck also supporting the head assembly, unbolt the entire head from the colume/base assembly.
Slowly lower the table and forks on the forktruck so that the entire assembly tilts forward.
Once the head is tilting forward, place more wood on the table and twist the head to the right (lookig from the front the head would revolve in a clockwise orientation) until the head is laying on it's side on the table.
It will now be low enough to get through the door.
You can also disassemble the entire thing, but this method worked for me and all wires and controls stayed in place.
Once inside, you can use the forklift to raise the head and bolt it back up to the base.
Be CAREFUL, use CAUTION, run AWAY if things start to get out of hand. It's only a machine, you are a flesh and blood entity. Getting crushed hurts.