Heavy 260Z hydraulic deck lift hose draining the tank

[Halonfire]

I have an 01? Gravely 260Z 992029
Accessory hydraulic deck lift hose leaking. Apparently, it has pressure all the time.
I don't use this feature. I have the parts to change to a manual.
Is there a procedure to block this off ?
Will it be nessesary to route the hose back to the pump or the tank?

 

[StarTech]

One sure way to know you can block the pressure line is to remove the return line and run the engine. IF no oil return then block the pressure line; otherwise, you need to loop back the pressure to the return line.

 

[Halonfire]

Wow ! That's graphic. It's exactly what I needed.
Thank You !

 

[Halonfire]

Ports cut through chassis for these lines were too small. The forward port had the webbing pinched against the chassis. Had to cut ports with a torch. Both hoses rubbed & leaking due to hurried tie strap placement. Mark of real engineering at placement of immoveable parking brake lever necessitating a $40 wrench to remove Rt. control tower. Self tapping bolt in photo will be relocated 1-1/2" higher