TM 55-1510-222-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
ENGINE RUNUP
1. Nose wheel - Center.
*2. Parking brake - Set. The parking
brake must lock without undue
pressure on the brake pedals and
release cleanly when parking brake
handle is reset.
G5
Monitor oil temperature closely during
ground operation with propellers in FEATH-
ER due to lack of air flow over oil cooler.
*3. Engine low idle speed - Check 60
to 62% N1, with propellers feath-
ered.
E1
*4. Propeller feathering - Check as fol-
F14,15
lows:
a. Condition lever - LOW IDLE.
b. Left propeller lever - FEATH-
ER. Check that propeller feath-
ers with no hesitation.
c. Check for proper pedestal con-
trol detent position.
d. Left propeller lever - HIGH
RPM.
e. Repeat procedure for right pro-
peller.
*5. Engine acceleration - Check as fol-
E14-20
lows:
a. Left power lever - Set 64% N1,
then rapidly move lever to
maximum.
2-30
