You should begin service and repair of the brake rotor/disc by lifting the vehicle to support its weight then disassembling the wheel assembly by removing the lug nuts. The front brake hose does not need detachment from the disc
Brake Caliper during service but the caliper bolts must be removed then secured with wire to stay out of the way. Begin the process by unfastening the front disc brake rotor attached to the
Wheel Hub. The installation process requires a reverse action of what was used for removal.