Zebrafive
Super Member
Thank you for the clarification, all my couplers are ISO type.
Counter intuitive, I know. New style you do not have to do anything, but couple to be good to go. I've had the bottom lever of the coupler on my 2030 move and stop flow.
Drawing is not very good, but the lever, key 10 has cutouts at 6 and 12 o'clock (when the lever is pointing back). The cutouts allow coupling with out the poppet ball being pressed. Turn the lever 90° and the area without cutouts presses in the poppet ball of the tip. I do not know why JD chose straight back for couple and 90° to the side for flow. They could have built it just the opposite.