4-15. LIGHT BALLAST.
This task consists of:
General Mechanics Tool Kit, (Appendix B, Section III, Item 1)
Wire Nuts, (3)
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. See Figure 4-5.
Loosen four captive screws (1) and remove diffuser (2).
There are three ballast in each light fixture. Two are located at one end and one at
the opposite end of the fixture.
Remove two screws (3) and ballast cover (4).
If wires are connected with clinched wire nuts, use side cutter to remove.
Tag and disconnect electrical wires from ballast (7).
Remove two nuts (5), lockwashers (6), and ballast (7). Discard lockwashers.
Install Ballast. See Figure 4-5.
Install ballast (7) in light fixture and secure using two lockwashers (6) and nuts (5).
Connect wires, as tagged, using wire nuts. Remove tags.
Install ballast cover (4) and secure with two screws (3).
Install diffuser (2) and secure by tightening four captive screws (1).
Restore power to lights by positioning Main Power Panel circuit breakers; A1CB9, A1CB11, and A1CB13 to ON.