AERODYNAMIC SEALS - REMOVAL/INSTALLATION
1. General
A. Aerodynamic door seals are used in or around door cavities to reduce aerodynamic drag. There are two primary methods of attaching aerodynamic door seals.
(1)
The seal is shaped to fit into a retaining flange and held in place by its own retaining lips.
(2)
The door seal is secured in place under a retaining angle that is bolted or screwed through a seal lip into the door structure.
2. Equipment and Materials
A. Methyl Ethyl Ketone - TT-M-261
B. Liquid Soap
(1)
Kelite Spraywhite
(2)
Turco 1526
C. Door Seal Installation Tool - SE52-1002, or equivalent
3. Removal Aerodynamic Seals (See figure 401.)
A. Seals which are shaped to fit into a seal retainer are removed by gripping the protruding portion of the seal and by rolling and pulling, removing the seal from the seal retainer on the door structure.
B. Seals held in place by a retaining angle are removed by removing the screws or bolts securing the retaining angle to the door structure and lifting off the retaining angle and the seal.
4. Install Aerodynamic Seals
A. Clean all surface s adjacent to seal surface with methyl ethyl ketone and a clean cloth.
WARNING: METHYL ETHYL KETONE IS FLAMMABLE AND TOXIC. USE ONLY IN WELL VENTILATED AREA.
B. Position seal adjacent to the seal retainer assuring that the top, bottom and corners o f the seal are in their respective positions. Equalize stretch through the entire perimeter of the seal. Strips of tape may be used to temporarily hold the seal in place. (See figure 401.)
500
Feb 15/73 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 52-09-151 Page 401
Aerodynamic Seal Installation 500
52-09-151 Figure 401 Nov 15/67
Page 402
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
C. Install the seal in the seal retainer by inserting one lip into seal retainer and using the door seal installation tool, SE52-1002, push the remaining edge of the seal into the retainer.
CAUTION: USE EXTREME CARE IN INSTALLATION OF SEAL TO PREVENT CUTS, TEARS OR PUNCTURES.
NOTE: Liquid soap may be used to lubricate seal during installation.
D. Seals which are held in place by a retainer angle should be installed by positioning the seal under the retainer. Holes must be punched in the seal flange of new seals to correspond with the holes in the retaining flange.
E. Tighten screws until compression of seal attachment flange just becomes visible.
F. Close door and check that seals do not overlap at intersections when compressed. If necessary, trim seals the minimum amount required at intersections to prevent overlapping when door is closed and latched.
500
Feb 15/69 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 52-09-151 Page 403
ACOUSTIC AND THERMO SEALS – REMOVAL/INSTALLATION
1. General
A. Acoustic and thermo door seals are used to reduce noise levels and heat losses. Each seal is normally a separate installation but they are used in conjunction with each other. (See figure 401).
B. The bulb type acoustic and thermo door seal is attached to the door lining. For removal of the door lining and seal, refer to the applicable door lining and insulation – removal/installation procedures.
C. The lip type acoustic and thermo door seal is removed and installed in a manner similar to the flap type aerodynamic seal. (Refer to Flap Type Mechanical Seals – Removal/Installation, section 52-09-121.)
500 Acoustic and Thermo Seal Installation
Nov 15/67 Figure 401 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 52-09-161 Page 401
LIGHT SEALS - REMOVAL/INSTALLATION
1. General
A. Light seals are used to prevent light leakage between individual compartments of the cabin area. Light seals are attached by bonding or placed under a retainer or hinge on the door and partition structure.
2. Equipment and Materials
A. Leather punch - 0.22-inch diameter hole
B. Solvent - Final Cleaning of Metal Prior to Non-structural Bonding (Series 88) (Ref AMM/SOPM 20-30-88)
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