TM 1-1520-238-T-6
9–418
9–172. CIRCUIT PROTECTION SYSTEM (AC ESSENTIAL BUS 1 – CPG STATION) –
9–172
MAINTENANCE OPERATIONAL CHECK (cont)
Task
Result
ag. On pilot ELEC PWR panel (fig. 9–162),
place BATT/EXT PWR switch to EXT PWR.
ah. Check for 115 VAC at (A97):
J1-D,
J1-B,
J1-A.
If 115 VAC is not present, go to paragraph 9–186.
ai. Check for 115 VAC at (A97):
J1-H,
J1-F,
J1-E.
If 115 VAC is not present, go to paragraph 9–187.
aj. Check for 115 VAC at (A97):
J1-E,
J1-D,
J1-C.
If 115 VAC is not present, go to paragraph 9–188.
ak. On CPG circuit breaker panel 1 (fig. 9–161),
attach P766, P767, and P769.
al. On CPG circuit breaker panel 2 (fig. 9–163),
attach P761 and P1.
2. On pilot ELEC PWR panel, place BATT/EXT PWR switch to OFF.
3. Perform EXTERNAL POWER – POWER DOWN (para 9–46).
END OF TASK
