TM 9-2320-361-10 2-28. OPERATION OF SHOP VAN AND INSTRUMENT REPAIR SHOP TRUCKS (Contd) (4) Operating 24-volt dome lights under blackout conditions. (a) Place power switch (3) in down position. (b) Place dome light toggle switch (4) in ON position. (c) Place blackout dome light toggle switch (5) in BLACKOUT position. (d) Open and close rear doors as necessary, to check operation of blackout lights. e. Supplying 115-Volt Power to Molding Receptacles. (1) Place power switch (3) in up position. (2) Place right side power circuit breaker (8) in ON position to supply power to right side molding receptacles (7). (3) Placee left side power circuit breaker (9) in ON position to supply power to left side molding receptacles (6). 2-135