JD-320 Pilot. How to release hydraulic pressure on quick tatch

[hottubbrad]

I am trying to replace a rotted hydraulic hose on my quick tatch bucket attachment system. (The one that engages the 2 locking pins on the bottom of the bucket.) My machine is a JD 320E with pilot and keyless start. I am familiar with how to release the pressure for the boom/ aux ect, but the quick tatch seems to have power whether the machine is started or not. Any ideas ?? I am new to quick attach systems.....plenty of experience with tractors though. Thanks

 

[foton]

I AM GUESSING HERE, but can you turn the machine on without starting and activate the controls for the quick attach a few times each way to dump any pressure on that hydro system. give that a try.