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TM-1-1510-225-MTF Army Model C-12 Aircraft Manual | Next
Primary governors |
TM 1-1510-225-MTF
PROCEDURE
ENGINE RUNUP (CONT)
TROUBLESHOOTING
REFERENCE
IGNITION ON annunciator
illuminated.
(2) At 9% to 14% torque - Both
AUTOFEATHER annuncia-
tors extinguished (propeller
starts to feather).
NOTE
The POWER lever may have to be lifted and
pulled towards the ground fine gate in order to
attain the 9% to 14% torque.
AUTOFEATHER annunciators will illuminate
and extinguish with each fluctuation of torque as
the propeller feathers.
(3) Return POWER lever to
approximately 22% torque.
(e) Repeat steps c and d for other
engine.
(f) AUTOFEATHER switch - ARM.
(g) AUTO IGNITION switches -
*11. Propeller overspeed governors - Check
as follows:
F1-3
(a) PROP levers - HIGH RPM.
(b) PROP GOV test switch - Hold in
TEST position.
(c) Left engine POWER lever -
Advance until overspeed gover-
nor governs propeller (1830 to
1910 RPM). Do not exceed tem-
perature and torque limits.
2-32
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