TM 1-1510-223-CL
P-25
4.
Release PROP GOVERNOR TEST switch –
Observe that propeller RPM increases.
5.
Left POWER lever – Continue advancing. At
approximately 50% torque differential, YD
ENG annunciator should extinguish, and left
rudder pedal should start to move forward.
Increasing engine power should result in in-
creased rudder pedal travel. (Observe
torque and TGT limits.)
6.
Left POWER lever – Slowly retard. Rudder
pedal travel should decrease with decreas-
ing power. The YD ENG annunciator may
flicker as rudder boost system disengages.
7.
Re-engage yaw damper and repeat steps 2.
through 6. with other engine.
PRIMARY GOVERNORS
1.
POWER levers – Set at 1500 RPM.
2.
Exercise propeller – Move to aft detent,
check propeller RPM 1150 +/ 50, then re-
turn to high RPM.
ENGINE ANTI-ICE
1.
ENG LIP HEAT switches (2) – ON. Check #1
and #2 LIP HEAT caution advisory lights illu-
minated.
2.
#1 and #2 LIP HEAT advisory annunciators
– Check illuminated and #1 and #2 LIP HEAT
caution advisory lights extinguished.
3.
ENG LIP HEAT switches (2) – OFF. Check
#1 and #2 caution advisory and advisory an-
nunciators extinguish.
