Clutch Hydraulic quick-disconnect fitting

Hey guys, I just bought a 94 ranger and am in the process of replacing the clutch. I am having alot of trouble with this Clutch Hydraulic quick-disconnect fitting. Can someone explain to me how to get this off? I have the tool, but do i press inward on the white plastic fitting or the brass washer thing on top of that? Any help would be greatly appreciated!

When you see the fitting there is a white collar inbetween the bottom and top half of the fitting, push the fitting towards the transmittion, and
then push the white collar up into the top of the fitting
it will pop loose when up high enough