Door, 192HR or the Air Conditioning Access Door, 191NL conditioned air ground service panel. 2) Attach the return hose to the 117A main equipment center bay door. 3) Make sure you maintain the flight deck temperature at or above -4°F (-20°C) for 30 minutes.
(d)
Warm the engines (AMM 71-00-00/201).
NOTE: It is not necessary to complete the engine warming
____
before proceeding to the following steps.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
12-33-02
ALL ú ú 01A Page 318 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 633-045
(5) Activate the electrical/electronic systems.
NOTE: Before electrical power is applied, visually make sure all
____ control lever positions agree with the movable control surfaces.
(a)
Make sure there is an electrical ground on the airplane (AMM 20-41-01/201). 1) Do the Park the Airplane (Normal Parking) procedure
(AMM 10-11-02/201).
(b)
Make sure all switches that are not necessary are in the OFF position.
NOTE: This does not include the switches to activate the
____
systems.
(c)
Install or connect the main batteries if it is applicable (AMM 24-31-01/401).
(d)
Connect the APU battery (AMM 24-31-06/401).
(e)
Install the emergency light batteries (AMM 33-51-04/201).
1) If the emergency light batteries stayed on the airplane during storage, do the step that follows:
NOTE: If you disconnected the wires to the battery packs
____ from the electrical power source, connect the wires.
a) Makes sure the circuit breakers for charging the emergency light batteries are closed. b) If you removed the battery cartridges from the airplane, install the cartridges.
(f)
Install the megaphone batteries (AMM 25-63-02/201).
(g)
Install all of the other batteries:
1) Make a check of the batteries in the emergency radio beacons.
NOTE: These batteries are located in the slide/raft covers
____ and the life raft. These batteries are only activated when they are touched by water.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
12-33-02
ALL ú ú 01A Page 319 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
2) Install the flashlight batteries and other equivalent non-rechargeable batteries.
NOTE:____ These batteries could have been moved to other
areas, or other airplanes. If they were, install
new batteries when the airplane is put back in
service.
(h) Close all of the applicable circuit breakers for the
electronic/electrical components.
(i) Close the circuit breaker for the parking brake valve.
NOTE:____ If the circuit breakers for the Antiskid/Autobrake
Control Unit were opened to prevent EICAS and BITE
message errors, close these circuit breakers.
(j) Close all of the applicable circuit breakers on the overhead
circuit breaker panels.
(k) Close the circuit breakers on the main power distribution
panels.
CAUTION: DO NOT APPLY GROUND ELECTRICAL POWER BEFORE THE
_______ TEMPERATURE HAS REACHED -4°F (-20°C).
(l) Apply electrical power to all the electrical/electronic equipment for a minimum of 2 hours (AMM 24-22-00/201). 1) Make sure the main battery is in the fully charged
condition. 2) Make sure the APU is in the fully charged condition.
CAUTION: DO NOT TURN ON THE EMERGENCY LIGHT SYSTEM IF POWER
_______ HAS NOT BEEN APPLIED TO THE INSTALLED SYSTEM WHILE THE AIRPLANE WAS PARKED FOR 6 DAYS OR MORE. DO NOT TURN ON THE SYSTEM FOR A MINIMUM OF 90 MINUTES AFTER YOU APPLY ELECTRICAL POWER. DO NOT DO A FUNCTIONAL TEST UNTIL THE BATTERIES HAVE BEEN CHARGED FOR A MINIMUM OF 90 MINUTES. THIS IS NECESSARY BECAUSE THE SYSTEM MUST BE CHARGED BEFORE IT IS ABLE TO OPERATE CORRECTLY.
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：747-400 AMM 飞机维护手册 SERVICING 2(125)
