Originally Posted by aaronsb
Most hydraulic steering systems (assist or direct) have isolation or are independent of working hydraulic groups. I would suggest you consider an electro hydraulic power pack or a linear electric drive system.
I would try to keep the steering system as simple as possible if you can.
You are right the steering system has separate circuit after flow divider:
If I ever decide to use the main pump I will use hydraulic solenoid valve for isolation that will open only when energized. Also I guess I will open/close slideouts only when bus is parked.
I do understand the last thing you want to have is a lost steering assistant when you drive this 40 feet monster....
I am still thinking what way to go. I might go mechanical way: chains or cables or rack and pinion...