(2)
Decorative surfaces.
(3)
Nomex honeycomb sandwich panels with a decorative tedlar cover.
(4)
Tedlar covers of aluminum laminates.
(5)
Perforated panels.
(6)
Polycarbonate (Lexan), ULTEM, and Declar plastics.
(7)
Urethane foam.
(8)
Insulation blankets and covers.
(9)
Aluminum trim
TASK 25-00-00-308-003
2. Repair Crushed-Core and Sandwich Panels_______________________________________
A. General
(1)
This procedure gives instructions to repair crushed-core and sandwich panels that have these types of damage:
(a)
Small scratches and dents
(b)
Large dents in thin crushed-core panels
(c)
Small holes and gouges
(d)
Damage that is more than 0.5-square inch but has no core damage
(e)
Damage that is more than 0.5 square inch with core damage
(2)
Make sure the area you want to repair is smaller than 100 square inches. If the area is larger than 100 square inches, you must replace the part.
WARNING:_______DO NOT BREATH THE ASBESTOS DUST. PUT ON A PROTECTIVE RESPIRATOR WHEN YOU DRILL THE LAVATORY PANELS. THE ASBESTOS DUST CAN GET IN YOUR MOUTH OR NOSE IF YOU DO NOT USE THE PROTECTIVE RESPIRATOR AND CAN CAUSE CANCER OR LUNG DISEASE.
(3)
Obey this WARNING during all of this task.
B. Equipment
(1)
Heat Gun - 1200 to 1500 watts
(2)
Saw - Hole
C. Consumable Materials
(1) Adhesives
(a)
A00000 Filler - BMS 5-136, Ad Tech 15-3
(b)
A00216 BMS 5-28, Epocast 1618A/B
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
25-00-00
ALL ú ú 01 Page 801 ú Jan 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 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 01 Page 802 ú Sep 20/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
FLAP (THE SAME WIDTH AS THE DAMAGED BLANKET)
STITCHING
FABRIC WITH A LAYER OF LEAD (NOT USED IN ALL BLANKETS)
EDGE BINDING FOR FULL BLANKET THICKNESS ALONG THE EDGE
CEMENT WITH A CONTINUOUS
LAYER OF SYNTHETIC
RUBBER CEMENT
MAKE AN OVERLAP OF
0.75-INCH
MINIMUM
OUTBOARD
INSULATION
FIBERGLASS COVER
INSULATION
BONDED BINDING FOR THE EDGE
OF CUTOUTS IN THE BLANKETS
INBOARD INSULATION COVERING
LAYER OF SYNTHETIC RUBBER CEMENT
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 01 Page 803 ú Sep 20/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
BASIC STRUCTURE
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
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：757 AMM 飞机维护手册 EQUIPMENT/FURNISHINGS 1(13)
