Remove all jewelry before conducting maintenance. Do not wear watches, rings, identification tags, or
other jewelry which could short across electrical components or catch on vehicle components. Failure to
comply may result in personnel injury or death.
1. Place A3 breaker switch (Figure 1, Item 1), located on A10 panel, in OFF position. Refer to
TM 55-1925-205-10 for breaker location.
Before attempting any maintenance, ensure power supply (switches, circuit breakers, etc..) has been
disconnected and locked/tagged out against unauthorized accidental start-up or else death or serious
injury due to electric shock and/or moving machinery could occur.
2. Lock Out/Tag Out (LO/TO) A3 breaker switch (Figure 1, Item 1). Refer to FM 4-01.502 for LO/TO procedure.
Figure 1. A3 Breaker Switch.