S 358-104
S 358-106
TASK 25-00-00-308-038
10. Repair of Insulation Blankets and Covers (Fig. 801, 802)
________________________________________
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
25-00-00
ALL ú ú 01A Page 830 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
CUT A SLIT IN THE ENDS OF THE TUBE AND CEMENT TO THE WASHER
INSULATION COVER
EDGE BINDING WITHOUT A FLAP STITCHING
COVEREDGE BINDING WITH A FLAP
Insulation Blankets Edge Binding and Grommet Installation Figure 801 (Sheet 1)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
25-00-00
ALL ú ú 01A Page 831 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
FLAP (THE SAME WIDTH AS THE DAMAGED BLANKET)
STITCHING
FABRIC WITH A LAYER OF LEAD (NOT USED IN ALL BLANKETS) OUTBOARD INSULATION COVER
FIBERGLASS INSULATION
INBOARD INSULATION
OUTBOARD INSULATION COVER
FIBERGLASS INSULATION
INBOARD INSULATION COVER
EDGE BINDING FOR A JOINT THAT MAKES AN OVERLAP THAT NEEDS FULL BLANKET THICKNESS
Insulation Blankets Edge Binding and Grommet Installation Figure 801 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
25-00-00
ALL ú ú 01A Page 832 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
EXAMPLE PROCEDURE TO ATTACH THE BLANKET ASSEMBLIES TO THE
STRUCTURE OR TO EACH OTHER WITH VELCRO TAPE
TRIM-EDGE WITH A TAB
SEAL THE GAP IN THE COVER WITH PERMACELINSULATION TAPE 621 AFTER YOU
STITCHING INSTALL THE BLANKET
4.00 INCHES
VELCRO HOLE DIAMETER AS 2.00 INCHES
TAPE NECESSARY TO CLEAR(EXAMPLE)THE SYSTEM RUN
BLANKET OPENINGS FOR SYSTEM (TUBING, ETC)
MAKE THE FASTENER TAB FROM THE INBOARD AND
OUTBOARD COVER, PLUS ONE LAYER OF BMS 8-115
Insulation Blankets Edge Binding and Grommet Installation
Figure 801 (Sheet 3)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
25-00-00
ALL ú ú 01A Page 833 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
FOLD BACK THE EDGE
OF THE TRIM APPROX
45` & STITCH
AS SHOWN
OUTBOARDSTITCHING
COVER
GROMMET
CUTOUT GROMMET
OR SLOT
OR SLOT
CUTOUT
MAKE AN OVERLAP (OPTIONAL)
TRIM EDGE BONDED TRIM EDGE STITCHED
CUTOUT OR SLOT
2 CUTOUT OR SLOT
MAKE AN
INSULATION BLANKET
GROMMET B
B A INBOARD
2 WASHERS NECESSARY
COVER
A-A
FOR EACH GROMMET
3
D
D
MAKE AN OVERLAP OF
0.44 |0.06 INCH B
B
C
BOND ONE TUBE NECESSARY FOR EACH GROMMET
3 B-B
USE COTTON THREAD WITH FOUR CORDS TO SIX-POINTED STAR CUTOUT NEEDED IN THE
MAKE 5|1 STITCHES FOR EACH INCH CENTER OF EACH WASHER OR DIMENSION "A"
BONDING MATERIAL BMS 5-30 HOLE IN THE CENTER
SEE TABLE 1 FIG. 803 FOR THE DIMENSIONS OF A,B,C,D AND GROMMET PART NO. EACH END OF THE TUBE SIX EQUALLY SPACED SLITS ARE NECESSARY ON
Insulation Blanket Repair
Figure 802 (Sheet 1)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
25-00-00
ALL ú ú 01A Page 834 ú Feb 18/00
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 EQUIPMENT/FURNISHINGS 1(21)
