TM 55-1510-222-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
LINE UP (CONT)
5. Brake deice system - Check as fol-
lows when required:
NOTE
Do not activate brake deice system above
15oC FAT.
a. Brake deice switch - ON.
b. Check that BRAKE DEICE
ON light is illuminated. then is
extinguished approximately 10
minutes after landing gear re-
traction.
DURING TAKEOFF
*1. Propeller tachometers - Check.
During takeoff propeller tachome-
ters should indicate 1700 RPM. If
propellers are synchronized and in-
dicator tolerances result in a differ-
ence in indicated RPM between
left and right propellers. then the
lower of the two values shall be
1700 RPM. The maximum differ-
ence between the readings of the
indicators shall be 20 RPM.
2. Engine instruments - Check the fol-
lowing instrument indications:
E28
*a. Torque
E24
*b. TGT
B9,E26
*c. N1
E27
*d. Oil pressure
E7-9
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