Ok thanks, and you are right about the manuals, kind of vague on some important details. Funnily enough, I was flipping through the braking section and low and behold there if the mention about "...oil flows from the steering control unit to the inlet (2) of the brake valve. We cheated and looked at another machine to confirm the hoses. Now of course I've found it in the dox haha.

Thanks again and have a good weekend!