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coolers.
b. No.1 flight control system accumulator for
proper indication (see figure 2-15-3).
* 18. Forward rotor (left side) — Check same as aft
rotor.
19. Brake accumulator pressure — Check 600 to
1400 psi.
* 20. Pylon fairings, work platforms, and inspection
panels — Check secure.
* 21. Top of fuselage — Check for foreign objects.
CAUTION
Failure to remove fuel vent covers may cause
fuel tanks to collapse while in use under certain
conditions.
O 22. Remove the fuel vent covers (3) (if installed)
before using ERFS.
8-2-16. Walk Around Check and Security Brief.
* 1. All access doors — Check secure.
* 2. Tie downs, locking devices, covers, and
ground cables — Removed and secured.
NOTE
The cockpit, forward transmission, flight control,
and avionics compartment soundproofing
should be installed during normal aircraft
operation to reduce noise levels in the crew
and passenger areas and to aid in venting of
transmission heat and fumes.
* 3. Cockpit, forward transmission, and forward
cabin area soundproofing installed.
* 4. Crew/passenger briefing — Complete as required.
8-2-17. Before Starting Engines.
1. Pedal adjustment — Matched. Check that
yaw pedals are adjusted equally and that adjustment
pins are in the same hole position.
Uneven pedal adjustment can cause droop
stop pounding during engine start and ground
operations.
2. Shoulder harness locks — Check operation
and leave unlocked.
* 3. No. 1 and No. 2 PDPs — Check all circuit
breakers in and gang bar up.
* 4. Overhead switches and control panels. Set as
follows.
O* a. EAPS ENG 1 and ENG 2 FAN switches
— OFF. DOORS — Close.
* b. EXT LTG switches — As required.
c. CPLT LTG switches — As required.
d. COMPASS switch — As required.
e. TROOP WARN switches — OFF.
f. HTG switches — As required.
g. W/S WIPER switch — OFF.
h. ELECT switches — OFF.
* i. LTG switches — As required.
* j. FUEL CONTR switches — Set as follows:
(1) XFEED switch — CLOSE.
(2) REFUEL STA switch — OFF.
(3) ALL FUEL PUMP switches — OFF.
k. 712 START switches — OFF.
l. ENG COND levers — STOP.
* m. 714A FADEC switches — Check or
set as follows:
(1) NR% switch — 100%.
(2) 1 and 2 PRI/REV switches — PRI.
(3) B/U PWR switch — OFF.
(4) LOAD SHARE switch — TRQ.
n. INTR LTG switches — As required.
o. PLT LTG switches — As required.
p. ANTI-ICE switches — OFF.
q. HOIST switches — OFF.
r. CARGO HOOK switches — Set as follows:
(1) MSTR switch — OFF.
(2) HOOK SEL switch — As required.
(3) EMERG REL ALL switch — OFF.
Cover down.
s. HYD switches — Set as follows:
(1) PWR XFER switches — OFF.
(2) FLT CONTR switch — BOTH.
TM 1-1520-240-10
8-2-7
(3) BRK STEER switch — ON. Cover
down.
(4) RAMP PWR switch — ON.
O (5) RAMP EMER switch — HOLD. Cover
down.
5. FIRE PULL handles — In.
6. AGENT DISCH switch — Check.
* 7. XMSN OIL PRESS switch — SCAN.
* 8. XMSN OIL TEMP switch — SCAN.
* 9. VGI switches — NORM.
10. CYCLIC TRIM switch — AUTO.
* 11. AFCS SYSTEM SEL switch — OFF.
* 12. M-130 or AN/ALE-47 — SAFE or OFF.
13. Avionics equipment — OFF; set as required.
O 14. HUD — OFF
15. 712 EMERG ENG TRIM switches — AUTO,
covers down.
16. SWIVEL switch — LOCK.
8-2-18. Starting Engines.
* 1. BATT switch — ON
2. CAUTION LT TEST switch–TEST. Check
that all caution/advisories capsules and the
two master caution lights on the instrument
panel come on. Some of the caution capsules
will be on before the system is
checked.
3. Clocks — Running, Set as required.
F 4. TROOP WARN ALARM and JUMP LTS —
Two bells, two red, two green (as required).
F* 5. Fire guard posted — APU clear to start.
* 6. APU — Start as follows:
a. APU switch — RUN for 3 to 5 seconds.
b. APU switch — START for 2 seconds,
then RUN.
NOTE
If the start is not completed, or the APU is
automatically shut down, wait one minute for
cooling before attempting a restart. Failure to
allow the APU to cool may cause a premature
shutdown on restart due to overtemperature.
If the start is not completed, set the APU
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支奴干运输直升机操作手册2(27)
