TM 1-4920-448-13&P2-4 Positioning Shop Equipment for Operation.a. Positioning ECUs for Operation.1. Remove four plugs (1) on outside of shelf (2).e.PowerOnatShelter.1. Ensure all circuit breakers are in the OFF position.2. Set main circuit breaker (1) in the shelterbreaker panel (2) to ON position.3. Set selected circuit breakers to ON position.2-8
