2002 Lincoln LS how to replace hydraulic fan?

This is what service manuals are for. Almost all independent repair shops subscribe to one of the very expensive online service data providers so they will have access to the information. The hydraulic lines are removed just like power steering hoses and brake lines. Everything else is just nuts and bolts like on any other job. I have a suspicion they simply don't want to work on the car, more for difficult access or if the job takes excessive time. Other manufacturers use this system too. I fail to see the advantage of it over a simple electric fan motor, but there's probably a reason they went to this system.