TM 1-1520-238-T-6
9–216
9–47.
EXTERNAL POWER AND GROUND SERVICE UTILITY RECEPTACLE –
9–47
MAINTENANCE OPERATIONAL CHECK (cont)
Task
Result
d. Check for 115 VAC from AC ELEC UTIL
PWR circuit breaker (CB6) on ground
service utility receptacle (fig. 9–120), at
J16-B, J16-F, and J16-E.
If 115 VAC is not present from AC ELEC UTIL PWR
circuit breaker (CB6), go to paragraph 9–52.
e. Check for 28 VDC from DC ELEC UTIL
PWR circuit breaker (CB7) on ground
service utility receptacle at J16-A.
If 28 VDC is not present from DC ELEC UTIL PWR
circuit breaker (CB7), go to paragraph 9–53.
J16
GROUND SERVICE UTILITY RECEPTACLE
(THRU DOOR B6OR)
M69-092
Figure 9–120.
Ground Service Utility Receptacle
f. Perform EXTERNAL POWER - POWER
DOWN (para 9–46).
g. On pilot ELEC PWR panel (fig. 9–118), set
BATT/EXT PWR switch to BATT position.
h. On pilot caution/warning panel (fig. 9–119),
check that EXT PWR indicator is not lighted.
If EXT PWR indicator is lighted, go to
paragraph 9–54.
i. On pilot ELEC PWR panel, set BATT/EXT
PWR switch to OFF.
END OF TASK
