QUOTE(Lindsay Richards @ Jun 20 2011, 11:15 AM)

We are in a Wal-Mart parking lot in Mansfield, OH with both slides stuck in the out position. Happened Sat night and no way to get it fixed. Lost all of my hydrolic fluid. Have called some folks to try and get it fix right here. Not a fun thing.
I have had to manually crank closed a slide on our TT and it was not fun at all! Our system was electric, not hydraulic so we did not have to release any pressure before cranking and cranking...
In our case, there was a spot that needed to be lubed that was not in the maintenance schedule. Once the repair tech pointed this out we were able to resolve the issue with slide lube but it sounds like your issue is going to involve quite a bit more!