Engine Runup; Hydraulic Systems Check - Bell BHT-206L3-FM-1 LongRanger-III Flight Manual

FAA APPROVED BHT-206L3-FM-1
MINUTES, STABILIZE AT IDLE
FOR ONE MINUTE BEFORE
INCREASING POWER.
5. Flight controls - Check freedom
with minimum friction.
NOTE
NOTE
During cold temperature
operations, stabilize at idle until
ENG OIL temperature reaches 0°C.
11.
GAS PRODUCER - 63 to 65% RPM.
12. Auxiliary power - Disconnect. BAT
switch - On.
The HYDRAULIC SYSTEMS
CHECK is to determine proper
operation of the hydraulic
actuators for each flight control
system. If abnormal forces,
unequal forces, control binding,
or motoring are encountered, it
may be an indication of a
malfunctioning flight control
actuator.
13. Throttle - Open to 70% GAS
PRODUCER RPM.
14. GEN switch - On.
2-20. HYDRAULIC SYSTEMS
CHECK
2-18. PRELIMINARY
1. Collective - Fully down.
HYDRAULIC SYSTEMS
2. ROTOR - 100% RPM.
CHECK
3. HYDRAULIC SYSTEM switch - OFF.
NOTE
4. Cyclic - Centered.
Uncommanded control movement
or motoring with hydraulic system
off may indicate hydraulic system
malfunction.
HYDRAULIC SYSTEM switch - OFF, then
ON.
5. Check normal operation of cyclic
control by moving cyclic in an "X"
pattern right forward to left aft, then
left forward to right aft
appoximately one inch). Center
6. Collective - Check for normal
2-19. ENGINE RUNUP
operations by increasing collective
control slightly (1 to 2 inches).
Repeat 2 to 3 times as required.
-
1.
Throttle - Increase smoothly to fully
Return to fully down position.'
open position. Check ROTOR LOW
RPM caution light extinguished at
7.
HYDRAULIC SYSTEM switch - ON.
90% ROTOR RPM.
6. Cyclic and collective friction - Set
2. GOV RPM switch - Check POWER
TURBINE governor actuator range 97
to 100% RPM; set at 100% RPM.
as desired.
9. ENGINE ANTI-ICING switch - ON;
check for TURB OUT TEMP increase.
3. Radio and navigation equipment -
ON.
4.
ELT (if installed) - Check for
Inadvertent transmission.
10. ENGINE ANTI-ICING switch - OFF;
check TURB OUT TEMP returns to
normal; then switch ON if required.
Rev. 1 2-11