(2)
Open the APU access doors 315AL, 316AR. (Ref. TASK 52-41-00-010-001)
(3)
Set the light switch 11LJ to on.
(4)
Remove the APU access doors 315AL, 316AR (Ref. TASK 52-41-21-000-001) (Ref. TASK 52-41-22-000-001).
NOTE : The removal of the APU is also possible without a removal of
____ the access doors. However, a removal of the doors will:
-
make the access to the APU compartment better.
-
make the installation and use of the hoist tool easier.
-
reduce the risk of injury to the personal.
-
reduce the risk of damaging the doors with the maintenance platform.
4. Procedure
_________ Subtask 49-11-11-020-053-A
A. Disconnection of the APU
(Ref. Fig. 401/TASK 49-11-11-991-006)
(1)
Disconnection of the APU Bleed-Air Duct Elbow
(a)
Loosen the clamp (2). NOTE : Let the clamp (2) stay loosely on the the bleed-air duct
____
of the APU (1).
(b)
Put blanking caps on the openings of the bleed-air duct elbow (3) and the bleed -air duct of the APU (1).
(2)
Remove the oil-cooler outlet duct and put blanking plugs on the oil cooler outlet and oil cooler duct (Ref. TASK 49-52-41-000-002).
(3)
Disconnect the APU Fuel Line with Vent and Drain Valve from the APU (Ref. Fig. 401/TASK 49-11-11-991-006)
WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
CAUTION : PUT PLASTIC CAPS OR PLUGS ON ALL FUEL AND/OR LUBRICATION
_______ SYSTEM COMPONENTS AND LINES. IF YOU USE TAPE, CLOTH, OR METAL CAPS ON THEM, YOU CAN DAMAGE THE APU.
CAUTION : YOU MUST USE TWO WRENCHES AND HOLD THE COMPONENT WHEN YOU
_______ REMOVE/INSTALL THE PIPE COUPLINGS AND/OR UNIONS. THIS PREVENTS DAMAGE TO THE COMPONENT.
(a)
Put the container in position below the fuel control unit and the vent and drain valve (21).
(b)
Remove the blanking cap (22) from the LP fuel inlet vent and drain valve (21).
(c)
Install the ADAPTER - VENT AND DRAIN VALVE, APU to the vent and drain valve (21).
(d)
Drain the unwanted fuel into the container.
(e)
Remove the ADAPTER - VENT AND DRAIN VALVE, APU from the vent and drain valve.
(f)
Install the blanking cap (22).
(g)
Remove and discard the lockwire and disconnect the vent and drain valve (21) from the Union Assy (20).
(h)
Put blanking plugs on the disconnected line ends.
(i)
Put the main fuel inlet-pipe in the stowage bracket attached to the firewall of the APU compartment. This will prevent damage during the APU removal.
(j)
Remove the container below the vent and drain valve (21).
(4) Disconnection of the Electrical Harness (Ref. Fig. 402/TASK 49-11-11-991-008)
(a)
Disconnect the electrical connections (50) P1 , (51) P2 and (55) P3 from the APU compartment front fire-wall.
(b)
Put blanking plugs on all electrical connectors.
(c)
Remove the bolts (54) from the clamps (53) at the APU compartment front fire-wall.
NOTE : Hold the spacers (52) in position when the bolts (54) are
____
removed.
(d)
Move the clamps (53) away from the brackets and temporarily install the bolts (54) and the spacers (52).
(e)
Remove the bolt (56) and the washer (57) from the bracket (59) at the RH side of the APU compartment.
(f)
Move the clamp (58) away from the bracket (59) and temporarily install the bolt (56) and the washer (57) to bracket (59).
(g)
Remove the bolt (61) and the nut (62) from the brackets (60) and
(63) at FWD RH tie-rod.
(h)
Move the clamp (63) away from clamp (60) and temporarily install the bolt (61) and nut (62) to the clamp (60).
Disconnection Points of the Blead-Air Duct, Fuel Line and Exhaust Muffler Figure 401/TASK 49-11-11-991-006- 12 (SHEET 1)
R EFF : 106-106, 108-149, 211-299, 301-399, 49-11-11Page 406 Config-3 Aug 01/05
CES
Disconnection Points of the Blead-Air Duct, Fuel Line and Exhaust Muffler Figure 401/TASK 49-11-11-991-006- 22 (SHEET 2)
R EFF : 106-106, 108-149, 211-299, 301-399, 49-11-11Page 407 Config-3 Aug 01/05
CES
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：A320飞机维护手册 AMM 机载辅助动力 AIRBORNE AUXILIARY POWER2(56)
