TM 55-1510-220-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
f.
Repeat above procedure for opposite engine.
*16.
Autoignition system - Check as follows:
a.
Power levers - Set above 22% torque.
b.
Autoignition switches (2) - ARM.
c.
Power levers - Retard.
d.
Ignition annunciator lights - Illuminated (16 to 21% torque).
*17.
Primary governors - Check as follows:
F2,3
a.
Power levers - Set 1800 RPM.
b.
Propeller levers - Move aft to detent.
c.
Propeller RPM - Check 1600 to 1640.
d.
Propeller levers - HIGH RPM.
*18.
Propeller low pitch stop - Check one engine at a time as follows:
a.
Aircraft - Position crosswind.
b.
Read the corrected propeller torque in % at 1800 RPM from figure 2.
c.
Propeller lever - HIGH RPM (full forward).
d.
Power levers - Set 1800 RPM.
e.
Torquemeter - Read and record torque.
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