Last piece of the puzzle ready :
I was thinking about what MH81 told me :"I will warn you of one thing. On more than one machine, I have seen the lift handle bent at the bottom and some even kinked. Just so you know."
My 3PH is working well and the effort to push/pull the tractor lever is not very big but is not easy .When the plow attached the weight is bigger .I'm thinking adding a pair of springs like in the drawing below :
The springs should take some of the weight of the lower part of 3PH and the weight of the plow .
Any suggestions , opinions ?