TM 1-1520-238-T-6
9–152
9–12.
AC ELECTRICAL POWER GENERATION – MAINTENANCE OPERATIONAL CHECK (cont)
9–12
d. On pilot center circuit breaker panel
(fig. 9–98), check that LT CAUT circuit
breaker is closed.
If LT CAUT circuit breaker does not stay closed, go to
paragraph 9–263 to troubleshoot dc emergency bus –
pilot station.
e. On pilot center circuit breaker panel, check
that LT PRI circuit breaker is closed.
If LT PRI circuit breaker does not stay closed, go to
paragraph 9–113 to troubleshoot pilot edge–lights.
f. On pilot aft circuit breaker panel, check that
POWER XFMR RECT 1 and POWER
XFMR RECT 2 circuit breakers are closed.
If POWER XFMR RECT 1 circuit breaker does not
stay closed, go to paragraph 9–23 to troubleshoot dc
electrical power generation.
If POWER XFMR RECT 2 circuit breaker does not
stay closed, go to paragraph 9–23 to troubleshoot dc
electrical power generation.
g. On pilot caution/warning panel (fig. 9–100),
check that GEN 1 and GEN 2 indicators are
lighted.
If GEN 1 indicator is not lighted, replace lamp
(TM 1-1520-238-23). If lamp still does not light, go to
paragraph 9–14.
If GEN 2 indicator is not lighted, replace lamp
(TM 1-1520-238-23). If lamp still does not light, go to
paragraph 9–15.
h. On pilot master caution/warning panel (fig.
9–101), press and hold PRESS TO TEST
indicator.
PRESS TO TEST
INDICATOR
M69-054
FIRE APU
INDICATOR
Figure 9–101.
Master Caution/Warning Panel
i. On pilot master caution/warning panel and
pilot caution/warning panel, check that all
indicators are lighted.
If any indicator is not lighted, replace lamp
(TM 1-1520-238-23). If lamp still does not light, go to
paragraph 9–333 to troubleshoot pilot caution/warning
system.
j. On pilot ELEC PWR panel (fig. 9–99), set
and hold GEN 1 switch to TEST.
k. On pilot caution/warning panel, check that
GEN 1 indicator is not lighted.
If GEN 1 indicator is lighted, refer to
TM 1-1520-238-T-3 (Generators Multiplex Read
Codes) and perform troubleshooting. Then, if no fault
is found, go to paragraph 9–16.
