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MAINTENANCE MANUAL
OUTBOARD
BLANKET FABRIC TUBE
WASHER (2 LOCATIONS)
ALIGN 6 FLAPS OF THE WASHER STAR CUTOUT WITH 6 STRIPS ON THE END OF THE CYLINDRICAL TUBE. FOLD THE STRIPS AND FLAPS DOWN AND BOND THEM TO THE WASHER
TO LOCATE WASHERS ON THE TUBE BEFORE BONDING
Insulation Blanket Repair
Figure 802 (Sheet 2)
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MAINTENANCE MANUAL
TRIM EDGE PRESSURE-SENSITIVE ADHESIVE DOUBLER
(IN INCHES) THICKNESS BLANKET INSULATION GROMMET 61B50020 PART NO. DIMENSIONS INCH 11
A B C D
1.50 -46 0.88 0.75 1.00 0.75
2.00 -47 0.88 0.75 1.50 0.75
1.00 -88 0.88 0.75 0.50 0.75
1.00 -89 0.88 0.75 0.75 0.75
1.00 -90 1.13 0.75 0.75 0.75
1.50 -91 1.13 0.75 1.00 0.75
TABLE I
USE COTTON THREAD WITH FOUR CORDS TO MAKE 5|1 STITCHES FOR EACH INCH (FEDERAL SPECIFICATION V-T-276, TYPE 1B3 OR TYPE 1B1, TICKET NO. 16).
YOU CAN USE STAPLES TO MAKE IT EASIER WHEN YOU MAKE THE STITCHES. THE STAPLES MUST NOT BE INSTALLED THROUGH THE EDGE TRIM.
IF NECESSARY, USE ONE MORE LOCATION TO MAKE THE STITCHES.
USE AN ADHESIVE DOUBLER IF IT IS NECESSARY TO GO THROUGH THE INSULATION 0.50 INCHES OR LESS.
Insulation Blanket Repair
Figure 802 (Sheet 3)
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MAINTENANCE MANUAL
A. General
(1) The procedures that follow give instructions to repair insulation blankets that have tears or holes. If a blanket has too much damage, you must replace it with a new one. You can use the damaged blanket as a template to make a new one.
B. Consumable Materials
(1)
A00153 Cement - BMS 5-30, EC 1458
(2)
A00188 Adhesive - BMS 5-105, Type I or II
(3)
B00148 Solvent - Methyl Ethyl Ketone (MEK)
(4)
G00034 Cheesecloth - Lint-free
(5)
Fabric - Vinyl-coated glass, BMS 8-115, Type I
(6)
G00060 Fabric - Lead-coated, BMS 8-47, Types I,
III and IV
(7)
G00086 Insulation - Blanket, Thermal Acoustical
Fiber, BMS 8-48, Type III, Class 3
(8)
G00087 Insulation - Covering, BMS 8-142, Type I
(9)
G00158 Thread - Cotton, V-T-276, Type IB3,
Ticket No. 16
(10)
G01996 Tape - Repair, OT-5
C. References
(1) 25-21-04/401, Sidewall and Ceiling Insulation
D. Access
(1) Location Zone
200 Upper Half of the Fuselage
E. Repair Blankets or Covers
S 118-182
WARNING: DO NOT GET SOLVENTS IN YOUR MOUTH, OR YOUR EYES, OR ON YOUR
_______ SKIN. DO NOT BREATHE THE FUMES FROM SOLVENTS. SOLVENTS ARE HAZARDOUS MATERIALS. SOLVENTS MAY BE FLAMMABLE OR HAZARDOUS TO THE ENVIRONMENT. REFER TO PRODUCT MATERIAL SAFETY DATA SHEETS (MSDS) AND LOCAL REQUIREMENTS FOR PROPER HANDLING PROCEDURES.
(1)
Clean the damaged area with cheescloth soaked with MEK or Acetone.
S 348-040
(2)
Cut a piece of fabric that is the same as the damaged blanket or cover.
NOTE: The fabric must be one inch larger in all directions than
____ the damaged area. Make the corners of the patch round.
If the damage is more than 25 percent of the blanket or cover size, do the procedure given to replace a blanket with too much damage.
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