T. F. Coil Replacement Considerations for the FED Baseline Configuration

A study was conducted to establish the tasks and special equipment required to remove and replace a Toroidal Field (T.F.) coil from the FED baseline configuration and to identify critical design features which might require improvement to facilitate maintenance procedures. It was established that nineteen major tasks must be accomplished prior to T.F. coil removal. Four of these tasks were identified as major problem areas of such magnitude that design reconsideration is mandatory if T.F. coil removal and replacement is to be a viable option. Specific recommendations are made to alleviate difficulties and enhance FED maintainability.