TM 1-1510-224-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
ENGINE RUNUP (CONT)
extinguishes,
and
that
the
left
rudder
pedal
begins
to
move
forward. Check that increasing
power results in increasing rudder
pedal deflection.
(h)
Left POWER lever - Slowly retard.
NOTE
YD ENG annunciator light may flicker as rudder
boost system disengages.
(i)
Repeat steps f through h for the
right engine.
*10.
Autofeather/auto ignition - Check as
follows:
F4-15
(a)
AUTO IGNITION switches - ARM.
(b)
POWER levers - Approximately
25% torque.
(c)
AUTOFEATHER switch - Hold to
TEST
(both
AUTOFEATHER
annunciators illuminated).
(d)
POWER levers - Retard individually.
(1)
AT 13% to 19% torque -
Opposite
AUTOFEATHER
annunciator extinguished, IGN
ON annunciator illuminated.
(2)
At 7% to 13% torque - Both
AUTOFEATHER annunciators
extinguished (propeller starts
to feather).
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