[veegee2]

The steering and lift do not work so there is zero pressure in the system and therefore there is nothing to test for.

I also talked to the head service technician at my local Cub Cadet dealership and relayed to him the complete story of my problem (See above) of not being able to purge the air from my hydro-static system after a disassembly/reassembly of the rear Axle/Differential. He just shook his head and said that he had no clue for what I should do next.