Actros MP2 braking system (construction, maintenance,…)

Hello dear people, I am a trained car ́s car and will soon start a job as a truck Mech., now I have a small question in advance. Is there serious differences to the car when constructing the brake system of the MP2, sometimes apart from the operation. Is it fundamentally different to work on the brake? I assume that trucks ́s are fixed saddles or? How are the pads fixed in it? How does a brake disc change in the truck? Are the discs mounted on the hub or do I also have to expand axle parts with it? The best would be a link or something where you can see the construction of the installed brake. Not that I would be absolutely complete idiot, but you ask in advance rather pay attention to what! Thanks in advance people! Greeting Daniel