(2)
Adhesive. Foam Sheet, IM 2700 (Ref.20-30-11)
(3)
Adhesive, Film Sheet, EP45 #X1 (Ref 20-30-11)
(4)
Cement, Synthetic Rubber, Naphtha Soluble, EC1870, (BMS 5-55) (Ref 20-30-11)
(5)
Mylar Film Tape, Protex 223-5, 5 MIL, 4 inches wide (Ref 20-30-51)
(6)
Mylar Sheet, Type A, 5 MIL thick.
(7)
Roller, Plastic, Metal or Hard Rubber 1-1/2 to 2 inches diameter.
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3. Prepare to Remove Entry and Service Area Floor Covering
A. Remove escape slide retainer bar floor brackets (Ref 25-61-332, Removal/Installation).
B. Remove retainer plate from edge of mat at drain trough.
C. Loosen or remove thresholds as required to free mats.
4. Remove Entry and Service Area Floor Covering
A. Remove Entry Area Mat.
(1)
Pull mat free from edge retaining devices; remove sealant as required.
(2)
Pull mat free from tape securing mat to material. Use care to avoid damage to waterseal.
B. Remove Waterseal (if entire area is to be replaced).
(1)
Pull strips of Permacel tape from floor (if tape used as waterseal).
(2)
Remove mylar sheets (if Mylar used as waterseal).
(a)
Remove sealant from edges.
(b)
Pull mylar from floor. If necessary, a plastic scraper may be used to assist in removing the mylar sheet.
5. Prepare to Install Entry and Service Area Floor Covering
A. Prepare Waterseal Surface for Mat (if waterseal has not been removed and replaced).
(1)
Examine waterseal for cuts, tears, abrasion or other signs of deterioration.
(2)
Repair waterseal if necessary (Ref 53-21-11).
(3)
Clean waterseal as required with oil-free gauze or cheesecloth moistened with BMS 3-2 cleaner.
(4)
Clean sealant from edge retaining devices. Do not allow solvent to get on waterseal or undisturbed sealant.
B. Prepare Floor Panels for Waterseal (if waterseal has been removed).
(1)
Clean floor panels with aliphatic naphtha as follows:
(a)
Apply naphtha with clean oil-free gauze, or cheesecloth.
(b)
Rub surface to remove soil. Wipe up naphtha with more clean gauze or cheesecloth before it evaporates to assure clean dry surface free of any solvent.
(2)
Protect floor tracks against corrosion (Ref. 51-21-91).
(3)
After cleaning avoid any soiling of floor surface prior to application of waterseal. Protect as required.
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T52299 T52300
509 Entry and Service Area Mat Installation
May 15/80 Figure 401 (Sheet 1) 25-27-211
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Entry and Service Area Mat Installation 509
25-27-211 Figure 401 (Sheet 2) May 15/80
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519 Entry and Service Area Mat Installation
May 15/80 Figure 401 (Sheet 3) 25-27-211
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6. Install Entry and Service Area Floor Covering
A. Install Entry Area Mat (assumes non-removal or prior installation of waterseal).
(1)
Apply 2-inch wide double-back tape to floor around periphery and approximately every four inches across area to be covered by mat.
(2)
Trim mat to size.
NOTE: Direction of manufactured roll should be perpendicular to centerline of airplane unless otherwise specified.
(3)
Inject sealant into edge retaining devices as required.
(4)
Apply mat and press down firmly on tape. Insert edges in edge retaining devices before any inserted sealant starts to harden.
(5)
Where carpets adjoin mats, insert carpets in edge retaining devices.
B. Install Permacel Tape Waterseal (recommended waterseal method prior to installation of mat).
(1)
Apply 18-inch wide strips of Permacel 306 tape across entire area perpendicular to centerline of airplane. Overlap each strip a minimum of one inch. Press tape down firmly in all areas.
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