How to remove main water conduit GE dishwasher

[SIZE=2]Need repair procedure on how to remove main water conduit connected at lower spray arm. I can remove spray arm ,fine filter and fine filter hub nut. The next piece to come off would be the main water conduit , the large supply fitting that is positioned below the fine filter hub nut – How do you remove this large large supply fitting ,this is the fitting where the conduit attaches ?[/SIZE]