It looks like the leak must either coming from the crimped fitting(s) on the end(s) of the hose(s), or else from the steering unit itself, called the "steering orbit roll" in the service manual, and the "steering controller" in the parts book (part# 4265075M92). The service manual description of removing the controller sounds fairly straightforward, but-- perhaps you could begin by having the hoses checked at a hydraulics shop? (I'd bet on the hose fittings.) It looks as though the steering controller is a non-fixable item.