[bryguymi]

Hmmmm, it seems I failed to reply to this thread with info on my fix, sorry guys. 

Long story short on the fix, it was caused by a faulty weld at the end of the hydraulic cylinder; when said weld broke, it took with it two hydraulic lines.  So the fix was as simple as re-welding the hydraulic cylinder attachment nut and replacing the tow hydraulic lines.  Simple?  Not so much.  

I had to completely remove the entire bed platform, then the carpet.  Once the carpet was removed, I did find one access panel in the floor that allowed me to assess the damages, by holding my iPhone down under the floor and taking flash pictures.  Now I had to cut more holes in the floor to access the ends of the two hydraulic lines that had to be replaced (cyphering where to cut these holes was a bit of trial and error).  So I got the lines removed, and had new ones made. 

Side note:  below this floor, all in the same area, are several other hydraulic lines circling around, lots of electrical lines running thru, and some other lines that frankly I can't remember what they were.  Very messy area to play around in. 

Now it's time to re-weld the hydraulic cylinder nut.  (Another side note: I was very glad it was the rear cylinder that failed, as if it were the front one I would have had to remove a large section of the tile flooring to gain access.)  I had to enlarge the existing access hole to have room to perform the welding.  Then I cleaned to the best of my ability all of the spilled hydraulic fluid.  Now, I have my mechanic come in with his welding equipment to perform the weld, and this is much easier said than done.  He re-welded the hydraulic cylinder nut into place, then we installed the new lines that I had waiting. 

Now, with great anxiety, I press the "extend" button, and WOOHOO!, it works perfectly.  I added some hydraulic fluid to the reservoir, and the mechanical part of the process was complete. 

Now, I put the bedroom back together (again, easier said than done). 

All in all, this repair ate up nearly a week of my life; and now everytime I extend or retract one of the three HWH slides, I cross my fingers. 

I'll attach some pictures. 
Bryan