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 ALL  ú ú B01 Page 702 ú Nov 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 (6)  
C00261 Primer - Corrosion Preventive, BMS 10-79

 (7)  
G00027 Cheesecloth

 (8)  
G00251 Abrasive Fabric-Aluminum Oxide,
 Scotchbrite, Type A; Optional: Abrasive
 Fabric - Aluminum Oxide, Bear Tex,
 Norton Company

 (9)  
C00172 Etchant - Tec 361

 (10)
 C00064 Alodine 1000

 (11)
 G00251 Abrasive Paper - Silicon Carbide, 180 to
 325 grit

 C. References
 (1)  
AMM 51-21-11/701, Paint Stripping

 (2)  
AMM 51-21-21/701, Prepaint Cleaning and Treatment

 (3)  
AMM 51-21-41/701, Alodine Coating

 (4)  
AMM 51-21-99/701, Decorative Exterior Finishes

 D. Procedure - Apply Abrasion Resistant Teflon Finish
 S 377-002-B00
 (1)  Do these steps to clean metal surfaces that are not painted:
 WARNING: DO NOT GET METHYL ETHYL KETONE (MEK) AND SOLVENTS IN YOUR
_______ MOUTH OR EYES, OR ON YOUR SKIN. DO NOT BREATHE THE FUMES FROM THESE MATERIALS. PUT ON A PROTECTIVE SPLASH GOGGLE AND GLOVES WHEN YOU USE THESE MATERIALS. KEEP THESE MATERIALS AWAY FROM SPARKS, FLAME, AND HEAT. THESE MATERIALS ARE POISONOUS AND FLAMMABLE AND CAN CAUSE INJURY OR DAMAGE.
 (a)  
Clean the surface with a clean cheesecloth that is moist with MEK.

 (b)  
Dry the surface with a clean dry cheesecloth before the MEK dries.

 (c)  
Remove all unwanted material from the surface. Use a wooden or plastic scrapper to clean around fasteners, seams, and lap joints. Use abrasive paper or Scotchbrite sheets if it is necessary.

 NOTE: If you cannot use this procedure to clean the surface,
____ use the stripping procedure (AMM 51-21-11/701). Use Turco 5351 stripper.
 (d)  Rub the metal surfaces with a Scotchbrite sheet that is moist with an MEK-Toluene mixture (1:1 by volume).
 NOTE: Do not rub the honeycomb and anodized aluminum surfaces
____
 with abrasive fabric.

 (e)  
Rub the stainless steel and titanium surfaces with 180-325 grit silicone carbide abrasive fabric.

 (f)  
Clean the surface again with a cheesecloth that is moist with the MEK-Toluene mixture.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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737-300/400/500MAINTENANCE MANUAL
 (g)  
Dry the surface with a clean dry cheesecloth before the MEK-Toluene mixture dries.

 (h)  
Apply the etchant on the metal surfaces. Do not apply the etchant on the honeycomb, anodized aluminum, stainless steel and titanium surfaces.

 (i)  
Keep the surface wet with the etchant for 5 to 6 minutes.

 (j)  
Rub the surface with a cheesecloth that is wet with water. Make sure you remove all of the unwanted particles.

 (k)  
Dry the surface with a clean dry cheesecloth.

 (l)  
Apply Alodine 1000 solution (AMM 51-21-41/701).

 (m)  
Use a vacuum to remove the remaining liquid material from the surface seams and lap joints.

 (n)  
Dry the surface with a clean dry cheesecloth.

 (o)  
Let the surface fully dry before you apply the primer.

 S 377-003-B00
 (2)  Do these steps to clean the metal surfaces that have paint:
 (a)  
Manually clean the surface with a cheesecloth that is moist with toluene.

 (b)  
Rub the surface with 320-grit (minimum) abrasive fabric.

 (c)  
Clean the surface again with a cheesecloth that is moist with MIBK.

 S 377-004-B00
 (3)  
Clean the plastic laminate surfaces (AMM 51-21-21/701).

 S 377-005-B00
　
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