S 014-036-N00
S 014-037-N00
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72-34-03
ALL ú ú N01 Page 411 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 014-038-N00
WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO OPEN THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
(4)
Open the thrust reversers (AMM 78-31-00/201).
D.
Remove the Fan Exit Liner Segments (Fig. 401).
S 354-039-N00
(1) If applicable, cut the sealant at the axial edge of the liner segment.
S 024-040-N00
CAUTION: BE VERY CAREFUL WHEN YOU REMOVE OR INSTALL A LINER SEGMENT.
_______ THE WASHERS THAT ARE ATTACHED TO THE FRONT LINER BRACKET CAN BECOME DISCONNECTED FROM THE BRACKET. ALSO, IF THE EDGE OF THE LINER SEGMENT HITS SOMETHING, IT CAN CAUSE DELAMINATION.
(2)
Do the steps that follow to remove the liner segments.
(a)
Be very careful to keep the washers with the liner segment.
(b)
ENGINES PRE-PW-SB 72-107; Remove the 14 screws that attach the inner liner and the spacer plate to the fan exit case.
NOTE: These are at the top, bottom, aft, and forward center
____ locations. Do not remove the screws from the forward edge of the No. 4 liner segment. There are no forward center screws on the liner segment No. 4.
(c) ENGINES POST-PW-SB 72-107; Remove the 14 bolts that attach the inner liner and the spacer plate to the fan exit case.
NOTE: These are at the top, bottom, aft, and forward center
____ locations. Do not remove the bolts from the forward edge of the No. 4 liner segment. There are no forward center bolts on the liner segment No. 4.
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72-34-03
ALL ú ú N01 Page 412 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(d) Carefully remove the liner and spacer plate from the case.
NOTE: Zero to three classified washers, washers with specified
____ thicknesses, were possibly installed between the liner and the front center attachment bracket to keep the correct clearance. If these washers were used, they were attached to the bracket with some adhesive compound. When the engine operates or you install or remove the liner segments, the washers can become disconnected from the bracket.
(e)
Remove the sealant, if necessary, from the axial edge of the liner segment and its mating parts.
(f)
ENGINES PRE-PW-SB 72-519; If the spacer plate (called spacer) is attached to the case, do not remove it.
TASK 72-34-03-404-041-N00
5. Install a New Fan Exit Liner Segment (Inner Rear)_________________________________________________
A. Equipment
(1)
Depth Micrometer (capable of reading to 1 inch
or more) - Commercially Available
B.
Consumable Materials
(1)
D00137 Engine Oil - PWA 521B
(2)
G00033 Cheesecloth - Unsized
(3)
G02134 Tape - Green, Moisture Resistant, PMC 4141
(4)
G00803 Mold Release (PWA 36007-1)
(5)
G02026 Tape - Adhesive Transfer N0. Y-9732 (PWA 36745)
(6)
A00482 Sealant - Silicone Rubber, PWA 36003
(7)
C00317 Sealant - Flame Resistant Silicone Rubber RTV-157 (PWA 36751-1)
(8)
A00000 Sealant - Silicone Rubber, PWA 36003-2 (PWA 36003-2)
(9)
B00130 Alcohol - Isopropyl (PMC 9094)
(10)
B00143 Solvent - Trichlorotriflouroethane, PMC 9037
(11)
A00160 Primer - Silicone (PWA 36096-2)
C.
References
(1)
AMM 71-11-04/201, Fan Cowl Panels
(2)
AMM 71-11-06/201, Core Cowl Panels
(3)
AMM 78-31-00/201, Thrust Reverser System
D.
Access
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本文鏈接地址：747-400 AMM 飛機(jī)維護(hù)手冊(cè) 發(fā)動(dòng)機(jī) ENGINE 2(50)
