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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(e)
Remove the least material possible when you remove the burrs from the new rivet holes in the strut.
(f)
Remove all contamination from the new fairing and the strut.
S 428-005-N00
(8) Follow the limits in Figure 802 to install the the new fairing.
WARNING: DO NOT GET THE SOLVENT IN YOUR MOUTH OR EYES,OR ON YOUR
_______ SKIN. DO NOT BREATHE THE FUMES FROM THE SOLVENT. PUT ON PROTECTIVE SPLASH GOGGLES AND GLOVES WHEN YOU USE THE SOLVENT. KEEP THE SOLVENT AWAY FROM SPARKS, FLAMES, AND HEAT. THE SOLVENT IS POISIONOUS AND FLAMMABLE AND CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(a) With MEK or Trichlorotriflouroethane clean the parts of the strut, new fairing, and intermediate case that the sealant will touch. 1) Make wet a piece of clean cheesecloth with solvent. 2) Wipe the area of repair with the cheesecloth. 3) Dry the surfaces fully in air that is at ambient
temperature.
4) If you do not apply the sealant immediately, put the paper over the cleaned parts. a) You must apply the sealant in two (2) hours.
(b)
Apply the red or gray sealant to the mating surfaces of the strut.
(c)
With clamps attach the fairing to the strut.
(d)
Install the rivets: 1) Apply the wet primer to the rivets. 2) Rivet the new fairing to the strut. 3) Examine the rivets for cracks, clearance and correct
installation. a) Around the rivet, in a radius equal to the rivet head diameter, the maximum clearance between surfaces is
0.005 inch (0.127 mm).
(e)
Fill the gaps and edges with the red or gray sealant.
(f)
Remove unwanted sealant with cheesecloth.
(g)
Let the sealant cure in the conditions that follow: 1) in air at ambient tempurature, 2) in air that has a relative humidity of at least 25 percent, 3) until it is not tacky, for at least two (2) hours before
you touch it.
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4) if it is possible, for a total of eight hours before you operate the engine. S 418-012-N00 WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00 WHEN YOU CLOSE THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
(9)
Close the thrust reverser (AMM 78-31-00/201). S 418-013-N00
(10)
Close the core cowl panel (AMM 71-11-06/201). S 418-014-N00
(11)
Close the fan cowl panel (AMM 71-11-04/201). S 448-015-N00
(12)
Do the activation procedure for the thrust reverser (AMM 78-31-00/201).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
FAN EXIT LINER SEGMENTS (INNER FRONT) - REMOVAL/INSTALLATION
____________________________________________________________
1. General
_______
A. This procedure gives the removal and installation tasks for the (inner front) fan exit liner segments. These fan exit liner segments will be referred to as the liner segments.
B. The seven liner segments are found on the inner front circumference of the intermediate case, aft of the fan case. The liner segments are referred to as follows:
Liner PWA
Segment_______ Part Number
No. 1 (PN 50G664 or 51G768-01)
No. 2 (PN 50G666 or 51G769-01)
No. 3 (PN 50G667 or 51G770-01)
No. 4 (PN 50G668 or 51G771-01)
No. 5 (PN 50G669 or 51G772-01)
C. You can open each half of the thrust reverser to get access to the liner segments.
TASK 72-34-06-004-001-N00
2. Remove the Fan Exit Liner Segments (Inner Front)
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本文链接地址：747-400 AMM 飞机维护手册 发动机 ENGINE 2(81)
