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Hi Guy, I'm reading between the lines here, but that sounds like the later F-10; the one just prior to the F-25? Two lift cylinders and one tilt cylinder that runs the cables and lives inside of the upper arm? Does it look like this one in the picture? You should have THREE valves: The main rotary valve, a little 4" bleeder valve just ahead and higher than the rotary and then there should be a two-direction "flop-handled" valve mounted forward of the main valve that controls the grapple/push off cylinder on your various heads, if equipped. It's plumbed wrong for one thing. That little 4" lever (with the external return spring) is the "slow drop" for the main lift. It should be plumbed into the system in parallel with the two main cylinders to dump back to the tank. Don't get rid of it, 'cause it is essential for when you get a real heavy load up high and have to lower just a small amount. If you use the rotary valve to drop the load and then suddenly "stop" the drop, you run the risk of buckling those two big cylinders. Gotta use that little 4" 'bleeder' valve. Back to your problem tho. Is it the tilt (cables) that is leaking down? Did you rebuild the cylinder inside the upper arm? That's the guy that usually leaks and it controls the tilt via the cables. Can only be leaking one of two places: the cylinder or the rotary valve. If the whole loader is dropping down, the leak is at either the two main cylinders, the small bleeder valve or the rotary. Now, if your tilt cylinder is mounted vertically and lives back beside the tank and if the tractor lives inside a "cage" affair, we're talking a very, very early F-10 and a totally different bird entirely. Of course you can still get parts. My email is open; if you have trouble and we'll get on the horn and get 'er straightened out. Allan 
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