Remote maintenance equipment for the Fusion Engineering Device

Tokamak design studies for the past five years have emphasized the importance of device maintenance by developing configurations based strongly on component disassembly. These configuration-oriented considerations have not, however, addressed the means by which a component is replaced, namely the maintenance procedures and the equipment needed. A detailed study of the replacement of a torus sector is the basis for identifying the stepwise maintenance procedures and the major equipment needed to accomplish this task. The replacement scenario is described in six stages, along with the requirements for general purpose and special purpose equipment