TM 55-1510-215-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
c.
Power levers - Retard. At
approximately 350 FT-LB TORQUE
annunciator L and R IGN ON lights
illuminated, green IGNITION ARM
lights extinguished.
d.
Autoignition - OFF.
*12. Propeller autofeather system -
F7-17
Check.
a.
Power levers - Advance to 500 ft-lb
torque.
b.
Autofeather test switch - TEST.
Hold to TEST position and check
both AUTO- FEATHER lights
illuminated; retard one power lever.
AT 350 - 450 FT-LB TORQUE, check
opposite AUTOFEATHER light
extinguished. AT 160 - 290 FT-LB
TORQUE,
check
both
AUTOFEATHER lights extinguished;
check propeller starts to feather.
c.
Power lever - Return to 500 FT-LB
TORQUE.
d.
Repeat steps b. and c. using the
other power lever.
e.
Propeller autofeather test switch -
ARM.
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