lever on the side of a pitless adapter?
I plan on pulling my submersable pump [4" in a 5" casing well depth 55'] it has a pitless adapter and what looks like a spring loaded lever at that point touching the opposite side of the casing from the pitless adapter. I have been reading about pitless adapters and talk about a release cable from a spring loaded pitless adapter. My well does not have a release cable on this, so how do i release the spring loaded lever or is that not needed---and just pull it out? I am afraid that if i just pull up and that lever wedges aginst the plastic well casing it will split the well casing. Should i make some kind of hook rod to pull up on that spring loaded lever as i pull up on the t-handle when removing it all? I have google sherched pitless adapters and do not find any with a spring loaded lever on the side, that i can look at, but many people talk about them in forums and say "pull the release cable" but without one on mine how can i pull it and what if i dont? Does this lever lock the pitless adapter so it don't come off or just pushes the pipe over so it is easier to connect, when re-installing the pump assembly? [it is not a 3 prong crows foot like some people have talked about]