TM55-2840-251-23
Section X ENGINE TESTING (Continued)
1-94
GROUND TEST OF ENGINE
INSTALLED IN AIRCRAFT
(Cont)
4.c.(2) (Cont)
(c)
Enter part power trim check curve
with ambient temperature and proceed vertically upward to
intersect field barometric pressure line. From this
intersection proceed horizontally to the left and read
torquemeter pressure. Record value obtained.
(d)
Enter curve with ambient
temperature and proceed vertically upward to intersect
interturbine temperature line. From this inter- section,
proceed horizontally to right to read interturbine
temperature. Record value obtained.
(e)
Perform pre-start check
(subparagraph 2).
(f)
Position part power trim stop to
limit power lever travel.
(g)
Accomplish satisfactory start (refer
to TM 55-1510-209-10/2.
(h)
Advance power lever to part power
trim stop and allow engine to stabilize at this setting for
approximately five minutes at 100% (2200 rpm) Np.
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