Is there a trick to getting it bled?  Worked fine when I replumbed it, then sprung a leak and drained itself in the driveway testing.  Got it working again after fighting the "down" function a while.  Got it fixed/bled.  Worked fine for a day.  Now no "down" again.  I can still hear it running when I use the switch, so I know it's not wiring.  Reservoir is full to about 1/2 inch from the top.  But it sounds like no load on the motor/hydraulic pump in "down".  When I pull the hydraulic line nothing is pumping through it (down only).  Anyone have a link to a Service manual, bleed procedure, wiring diagram, anything?  I see 4 solenoids and a hydraulic pump and reservoir, and I know it's at least capable of working right...

Worked for a day and quit again.  Pump makes noise both directions.  "Up" pumps fluid, down does not.  Removed and checked all 4 solenoids.  The two closest to the pump has fluid shooting out when the solenoids are off.  Solenoids furtherst away do not.  Even pulling the lines off right at the pump - no fluid coming out of line to push nozzle "down", fluid only coming out the side of the pump to push the nozzle "up".