S 426-008
(3)
If damage is found, remove the APU for the replacement of the damaged inlet plenum or screen (Ref 49-11-01/401).
F.
Put the Airplane Back to Its Usual Condition
(1)
Install the three inlet plenum access panels.
S 416-009
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
49-15-00
ALL ú ú 01 Page 602 ú Feb 10/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 436-026
(2)
Tighten the turnlock fasteners.
S 416-010
(3)
Close the APU access doors.
(a)
Do a visual check of the EGT bus bars: 1) Make sure the bus bars are not damaged. 2) Make sure no metal parts touch the bus bars. 3) Make sure the bus bars do not touch each other.
(b)
Disengage the support rods for the APU access doors.
(c)
Put the support rods in the clips on the inner side of the APU access doors.
(d)
Make sure the insulation covers attach correctly to the APU firewall.
(e)
Close the APU access doors.
(f)
Close the latches on the APU access doors.
S 866-011
(4)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P83 Panel, E8 Aft Equipment Center
1) APU PRIMARY CONT
(b)
P6 Main Power Supply Panel
1) 6K18 APU ALTN CONT
S 866-024
(5) Remove the DO-NOT-OPERATE tag from the APU control switch on the P5 panel.
TASK 49-15-00-206-027
3. Examine The Door Position Switch________________________________
A. References
(1)
49-15-05/201, APU Door Position Switch
(2)
IPC 49-15-04 Fig. 1
B.
Access
(1)
Location Zone
318AR APU Compartment-Forward Side of the Air Inlet Plenum, Above Actuator Container, RH
(2)
Access Panel
317AL APU Access Door
318AR APU Access Door
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
49-15-00
ALL ú ú 03 Page 603 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
C. Examine the Position Switch for the Air Inlet Door
S 026-016
(1)
Remove the position switch for the air inlet door (Ref
49-15-05/201).
S 216-017
(2)
Visually examine the position switch.
(a)
Visually examine the actuator rod on the position switch for wear, cracks, or damage.
(b)
Visually examine the electrical connector on the position switch for damage. 1) Make sure the connector is tight.
(c)
If damage is found or the electrical connector is loose, replace the door position switch.
S 426-019
(3) Install the position switch for the air inlet door
(Ref 49-15-05/201).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
49-15-00
ALL ú ú 01 Page 604 ú Feb 10/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
AIR INLET DUCT SEAL - REMOVAL/INSTALLATION
__________________________________________
1. General_______
A. This procedure contains the tasks to remove and install the seal for the air inlet duct.
B. The seal for the air inlet duct is attached to the lower flange of the air inlet duct. You must remove the APU to get access to the seal.
中國航空網(wǎng) m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機(jī)維護(hù)手冊 機(jī)載輔助動力 1(114)
