720 hydro question

[daveb]

Has anyone used ATF additives in the hydro to help prevent sticking valves ? if so what did you use? My 720 hydraulics go down when not running no leaks that i see and does not seem to have the lifting power that it should . Thanks for all the help,Dave

[wilm169]

A lot of that is in the hydraulic valve under the dash, O ring and other parts like this one.