Hi Mark....
When I purchased my JD4710, I asked my dealer, KC-Canary, Fultonville, NY, for price quotes to install the Fasse Valve on top of the FEL joystick instead of on the housing in front of the rockshaft control lever. I thought it would make things a bit easier when operating my 4in1 bucket. The following e-mail excerpt is how the dealer reacted to my suggestion to install the Fasse Valve.
"The set up Deere provides for the 4in1 bucket is one in which the clamping function is operated by your 3rd remote valve. There is a mid-mount connection and the hoses are run to the rear of the tractor where there is also a quick disconnect. So in essence, that function will be lever controlled. The lever is located currently (on the 4x10 series) directly below the joystick whereas in the past (4000 series) it was located on the right hand fender. The button you speak of can be done and is called a Fasse valve. It electrically diverts the oil from one function (curl or lift) while the button is engaged to operate the clamshell function. Your price for the Fasse valve and installation would be about $700. The valve itself runs about $350 and there is a considerable amount of wiring and installation time, the better part of a day...I have to be honest, we haven't done a lot of these in the past, but from a cost standpoint and for the very reason that the joystick and lever are in close vicinity now without losing any loader function, I think the current set up Deere calls for is probably the best."
I decided to take the dealer's advice and went with the standard Deere set up. I've operated the 4in1 several times and I find the arrangement to be suitable and am glad I did not opt to go for the Fasse valve, thus, saving $700 in the process.
Bob