TM 1-4920-500-13&P
0035 00
TEST
WARNING
HIGH VOLTAGE exists in electrical system of shop. All electrical inspections,
repairs, or replacements will be performed with power OFF and only by a
qualified electrician. Serious shock hazards exist which could result in INJURY
OR EVEN DEATH to personnel.
1. Move all circuit breakers to OFF position and tag.
NOTE
This procedure covers obsolete NQOB circuit breaker panel and new NQOD
circuit breaker panel. These units are distinguishable by nameplates attached to
panel boards.
2. Loosen four captive screws and move clamp fingers to OPEN position on model NQOB.
3. Lift circuit breaker panel cover from panel board on model NQOB.
4. Remove four screws and four washers and lift panel board from circuit breaker box on both models.
100 AMP
SSAE163
5. Test each circuit breaker by ensuring circuit breaker is in ON position.
6. Ensure branch circuit breakers are in ON position and observe if any breakers switch to OFF position.
7. Move all circuit breakers to OFF position.
8. Test each circuit breaker for continuity.
9. Replace circuit breaker(s) if there is no continuity.
10. Move all circuit breakers to ON position.