TM 1-1520-238-T-6
9–214
9–47.
EXTERNAL POWER AND GROUND SERVICE UTILITY RECEPTACLE –
9–47
MAINTENANCE OPERATIONAL CHECK
Tools:
Nomenclature
Part Number
Tool Kit, Electrical
SC518099CLA06
Repairer’s
Multimeter, Digital
AN/PSM-45
Personnel Required:
68X
Armament/Electrical Systems Repairer
One person to assist
References:
TM 55-1520-238-23
Equipment Conditions:
Ref
Condition
Paragraph 9–45
EXTERNAL POWER
– POWER UP completed
WARNING
Turn off power before detaching or attaching wires and connectors. High
current 28 VDC or 115 VAC is present. Failure to do so could result in death
or serious injury.
NOTE
Refer to pilot station (fig. 9–116) for configuration and component
locations.
If referenced out of one paragraph or volume into another for additional
troubleshooting, upon completion of the task, return to the maintenance
operational check for the original paragraph or volume.
1. Perform the maintenance operational check as follows:
Task
Result
a. On pilot circuit breaker panel (fig. 9–117),
check that POWER XFMR RECT 1 circuit
breaker (CB1), POWER XFMR RECT 2
circuit breaker (CB4), and LT CAUT circuit
breaker (CB21) are closed.
If POWER XFMR RECT 1 circuit breaker (CB1) does
not stay closed, go to paragraph 9–23 to troubleshoot
dc electrical power generation.
If POWER XFMR RECT 2 circuit breaker (CB4) does
not stay closed, go to paragraph 9–23 to troubleshoot
dc electrical power generation.
If LT CAUT circuit breaker does (CB21) not stay
closed, go to paragraph 9–333 to troubleshoot pilot
caution/warning system.
