Just got the 430W home- has not been worked for a while as the original owner is quite elderly, and his son hasn't been around it for recent history. A Dearborn plow came as part of the deal, see we figured hook it up and on the trailer, Has the dual TOM, arms are not pinned together- getting used to that system. So the right lever moves on its own, raising the hitch- doesn't seem right. We have no idea what kind of oil has been put in it, so I figured first step would be correct oil and level. Read the thread below and did a little research, figuring I could use Hygard/ Hytran type oil, as I have a full drum of Chevron's finest. I see recommendations of engine oil etc., rather have hydraulic oil as I may want to add a remote and be compatible with my other stuff. I remember our old 420 in the 60s-70s had a rear remote added, and my foggy memory says we used Hytran in it (gramps had an IH dealership, and we had a pair of 706Ds). So Hygard/Hytran type will be OK? Working on the little idiosyncrasies of this system, but is the outer lever moving on its own normal, and is there a correct procedure that eliminates that, or is something wrong? Fired it up on the trailer yesterday, and the lever went back, hitch raised, and if you push the lever ahead, it goes right back on its own? Not real safe...