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747-400 MAINTENANCE MANUAL
~................................................... |B01009 |Cleaning Solvent - Final Cleaning of all | | |Organic Coatings Prior to Non-structual | | |Bonding - Series 89 | ..................................................... |B00148 |Methyl Ethyl Ketone (MEK) - TT-M-261 | 2........…..........................................1
(4) Other Materials
~......................................................
|G00027 |Cheesecloth - Boiled |
........................................................
|B00103 |Abrasive Fabric-Aluminum Oxide -|
| |Scotchbrite, Type A; Optional: |
| |Abrasive Disk-Aluminum Oxide, Bear Tex |
........................................................
|G00011 |Tec 361 |
........................................................
|C00064 |Alodine 1000 |
........................................................
|G00251 |Abrasive Paper - Silicon Carbide, 180 |
| |to 325 grit |
........................................................
|G00294 |Tape - Masking, permacel No. 76 |
2........….............................................1
C. References
(1)
AMM 20-30-89/201, Solvent - Series 89
(2)
AMM 51-21-01/701, Interior and Exterior Finishes (Paint Stripping)
(3)
AMM 51-21-02/701, Interior and Exterior Finishes (Prepaint Cleaning and Treatment)
(4)
AMM 51-21-04/701, Alodized Surfaces
(5)
AMM 51-24-11/701, Decorative Paint System
D. Prepare the Surface
S 107-017
(1) Do these steps to prepare the metal surfaces that are not painted:
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 HARMFUL TO THE ENVIRONMENT. REFER TO PRODUCT MATERIAL SAFETY DATA SHEETS (MSDS) AND LOCAL REQUIREMENTS FOR PROPER HANDLING PROCEDURES.
(a) Clean the surface with a clean cheesecloth that is moist with solvent, Series 89 (AMM 20-30-89/201).
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MAINTENANCE MANUAL
(b) Clean around the fasteners, seams, and lap joints with a rigid
bristle brush that is moist with solvent, Series 89 (AMM
20-30-89/201).
NOTE:____ If it is necessary, you can use a wooden or plastic
scrapper, sandpaper, or Scotchbrite sheets. You can
also use a stripper that is applied with a brush
(AMM 51-21-01/701) to remove contamination. Turco 5351
is recommended.
(c) Before the solvent becomes dry, rub the surface with a clean
dry cheesecloth.
(d) Remove all the remaining particles, and unwanted sealants and
adhesives from the surface.
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 HARMFUL TO THE ENVIRONMENT. REFER TO PRODUCT MATERIAL SAFETY DATA SHEETS (MSDS) AND LOCAL REQUIREMENTS FOR PROPER HANDLING PROCEDURES.
(e) Rub the surface with a Scotchbrite sheet that is moist with solvent, Series 89 (AMM 20-30-89/201).
NOTE: Do not use this mixture on honeycomb assemblies or
____ anodized aluminum.
(f)
Use 180 to 325-grit silicone-carbide abrasive paper to clean the stainless steel and titanium surfaces.
(g)
Remove all the remaining particles with a cheesecloth that is moist with solvent, Series 89 (AMM 20-30-89/201).
(h)
Clean the surface with a dry clean cheesecloth before the solvent becomes dry.
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