I jacked up the rear,ran it, moved lever,,wheeels would not turn on their own..but did turn smooth by hand...
I unscrewed relief valves and ran it..i can see fluid way down at the bottom, but not towards the top..don't know where it should be (again fluid in rear is fine...ran it and tried to move wheels and front hydro lever...nothing....
After it ran for a long time..I could every now and then see a bubble or two coming out of the porous stone vent on the top of the rearend...
here is a video....
Yes fan is missing..it isn't cooked, as it worked fine when parked...