4-17. EMERGENCY LIGHT BALLAST BOX.
This task consists of:
General Mechanics Tool Kit, (Appendix B, Section III, Item 1)
Power to lights removed by positioning Main Power Panel circuit breakers; A1CB9, A1CB11, and A1CB13 to OFF.
General Safety Instructions
Before performing any maintenance actions on electrical equipment, ensure all
electrical power has been turned off. Failure to comply with this warning may
result in serious injury or death.
Remove Ballast Box. See Figure 4-7.
Tag and disconnect wires to plug connector (1) from lighting circuit.
Remove nut (2) securing conduit elbow (3) to bracket (4).
Remove four screws (5), lockwashers (6), and washers (7) from rivnuts mounted on Mod Lab B wall. Discard
Guide wires from lighting circuit through conduit opening while removing ballast box (8) from wall mounting.
Install Ballast Box. See Figure 4-7.
Guide wires from lighting circuit through conduit opening while positioning ballast box (8) to wall mounting.
Secure ballast box (8) to rivnuts of wall mounting with four screws (5), lockwashers (6), and washers (7).
Secure electrical conduit elbow (3) to bracket (4) with nut (2).
Connect wires from lighting circuit as tagged to plug connector (1). Remove tags.
Restore power to lights by positioning Main Power Panel circuit breakers; A1CB9, A1CB11, and A1CB13 to ON.