TM 1-1520-238-T-4
Change 8
4–67
4–13.
POWER PLANTS – MAINTENANCE OPERATIONAL CHECK (ENGINE 2) (cont)
4–13
Task
Result
If engine over temperature or hang start occurs or ENG 2 START indicator
on pilot power quadrant (fig. 4–26) remains lighted above 52% NG, shut
down engine 2. If positive oil pressure does not occur within 30 seconds
after NG begins to increase, shut down engine 2. Failure to comply could
result in damage to equipment.
CAUTION
q. Repeat step n.
If engine 2 does not accelerate to or remain between
23% and 25% NG, go to paragraph 4–36.
r. Start engine 2 (TM 1-1520-238-CL).
If engine 2 does not start, go to paragraph 4–50.
If engine 2 starts then flames out and fuel
crossfeed/shutoff valve indicator is positioned at
NORMAL, refer to TM 1-1520-238-T-7 to troubleshoot
fuel crossfeed/boost system.
If hang start occurs (TGT increases, but NG does not
reach idle speed), refer to TM 55-2840-248-23 to
troubleshoot engine.
If pilot ENG OIL indicator does not indicate positive oil
pressure within 30 seconds of NG increase, refer to
TM 1-1520-238-T-5 to troubleshoot engine
instruments.
If TGT indicator exceeds 852C (1560F) during start,
refer to TM 55-2840-248-23 to troubleshoot engine.
If CPG SDD panel, NG, TGT. ENG–RTR, TORQUE or
ENG OIL indicators do not indicate, refer to
TM 1-1520-238-T-5 to troubleshoot engine
instruments.
s. Check that ENG START NO 2 indicator on
pilot power quadrant (fig. 4–26) is not lighted
when NG is greater than 52%.
If ENG START NO 2 indicator does not light, go to
paragraph 4–38.
If ENG START NO 2 indicator remains lighted above
52% NG, go to paragraph 4–39.
t. Check that ENGINE 2 OUT indicators on the
master caution/warning panels (fig. 4–31)
are not lighted.
If ENGINE 2 OUT indicators are lighted, go to
paragraph 4–40.
