My m7950 loss all steering running you can just turn the wheel and shut down there is no resistance so you cant even strong arm it. The shop manuals are 300 to 500 so we cant really afford that right now. I'm Shure there is a trouble shooting procedure and some ware to install a gauge to check pump pressure. Any input would be great on possible Couse of the failure would be great also on diagnosing the issue at hand. thanks