TM 55-1510-221-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
ENGINE RUNUP (CONT)
*2.
Parking brake-Set The parking
G5
brake must lock without undue pressure on the
brake pedals and release cleanly when parking
brake handle is reset.
CAUTION
Monitor
oil
temperature
closely
during
ground
operation
with
propellers
in
FEATHER due to lack of air flow over oil
cooler
*3. Engine low idle speed -Check 52
E1
to 54% N1.
*4. Propeller feathering -Check as follows
F14,15
l
a
Condition lever -LOW IDLE.
b
Left propeller lever FEATHER. Check
that propeller feathers with no hesitation
c.
Check for proper pedestal control
detent position.
d.
Left propeller lever -HIGH RPM.
e.
Repeat procedure for right propeller
*5.
Engine acceleration -Check as follows.
E6,14-20
a.
Left power lever Set 64% N1, then
rapidly move lever to maximum
2-28
