The Six pack is transported by the containment crane on to the Reactor Cover. Afterwards it is transported from one turning position to the next position by electrical hoist which is attached to a circular beam at the upper part of the Reactor cover. During the RV stud turning the equipment is independent from the containment crane. Typical RV stud operating time for 58 RV studs is 1 h 20 min. The equipment is operated by one person and for transporting a second worker for guiding the tool is needed.
Six Pack and the corresponding RV stud storage and transport rack
Stud Turning Device for installing or removing stud weight compensated six reactor studs simultaneously.
Six Pack installed on a Reactor cover for RV stud removal/installation