The hydro leak turned out to be a small 3/8" diameter o-ring that went on a threaded casting plug on the backside of the final drive unit. They had to take the whole drive motor off the machine to get to it. Also, I couldn't get the float to work so I told them the float wasn't working and they said they would look into it. When I picked up the machine they showed me how to get it too float. Silly me, I was trying to put it into float the same way the Case worked. Well, guess what they had done, instead of seeing if the float worked they just installed the new software upgrade they got in the other day. Guess what? It is a sweet upgrade!! I didn't have a problem with how they worked before, you just had to be very diliberate and precise, not anymore, they are butter smooth now, no jerking and they work the same everytime. I'm very pleased.