The hadron experimental facility has been constructed as one of two experimental facilities at the J-PARC Main Ring. It utilizes a high-intensity proton beam with a power of 750 kW in maximum and provides various secondary beams for nuclear and particle physics experiments. In order to handle the high-power proton beam, the maintenance scheme must be carefully considered in the designs of the facility and its components. In this paper, the maintenance scenarios in the facility are described and beam-line equipments with sufficient radiation hardness we developed are briefly introduced.
