12-25-01
ALL ú ú 01B Page 313 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400 MAINTENANCE MANUAL
(d) Apply the cleaner to the applicable area with non-atomizing spray equipment, swabs, or brushes.
NOTE: To prevent scratches on the surface, soak the brushes
____
in the cleaner before you use them.
(e)
Let the cleaner soak for approximately five minutes. Apply the cleaner again if necessary to keep the surface wet.
(f)
Rub the surface with a brush to help remove unwanted material.
CAUTION: MAKE SURE YOU FLUSH THE SURFACE SUFFICIENTLY TO REMOVE ALL
_______ OF THE CLEANER. THE CLEANER CAN CAUSE CORROSION IF IT IS NOT REMOVED COMPLETELY FROM THE AIRPLANE SURFACE.
(g)
Flush the surface with clean, warm water (160°F maximum).
(h)
Dry the wet surfaces with air or towels.
S 113-011
(2) Remove Moderately Heavy Material (oil and mud) from Smooth Surfaces
(a) Move the flaps to the fully retracted position.
NOTE: To clean the flaps in the extended position, refer
____ to the procedure to Remove Material Around Sensitive Components.
WARNING: KEEP THE CLEANING SOLVENT THAT IS USED IN THE SOLVENT
_______ EMULSION CLEANERS AWAY FROM SOURCES OF HEAT. THE CLEANING SOLVENT IS FLAMMABLE.
(b)
Mix the solvent emulsion cleaner from Table II.
(c)
Mix the cleaner until it is thick and creamy.
WARNING: DO NOT USE HIGH-PRESSURE SPRAY EQUIPMENT TO CLEAN
_______ MECHANICAL, ELECTRICAL, OR HYDRAULIC COMPONENTS. LIQUIDS THAT GET INTO THESE AREAS CAN CAUSE CORROSION, FREEZE DURING AIRPLANE FLIGHT, OR REMOVE NECESSARY LUBRICANTS.
CAUTION: KEEP THE NOZZLE OF THE SPRAY EQUIPMENT MORE THAN 12 INCHES
_______ AWAY FROM THE SURFACE OF THE AIRPLANE. THE SPRAY CAN CAUSE DAMAGE TO THE SURFACE.
CAUTION: DO NOT LET THE SOLVENT EMULSION CLEANER TOUCH ACRYLIC
_______ WINDOWS OR RUBBER PARTS. THE SOLVENT EMULSION CLEANER WILL CAUSE DAMAGE TO ITEMS THAT CONTAIN ACRYLIC OR RUBBER.
(d) Apply a heavy layer of cleaner to the applicable area with non-atomizing spray equipment, mops, or brushes.
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12-25-01
ALL ú ú 01B Page 314 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
(e)
Let the cleaner soak for 5 to 10 minutes. Do not let the cleaner dry on the surface.
(f)
Rub the surface with a brush to help remove unwanted material.
CAUTION: MAKE SURE YOU FLUSH THE SURFACE SUFFICIENTLY TO REMOVE ALL
_______ OF THE CLEANER. THE CLEANER CAN CAUSE CORROSION IF IT IS NOT REMOVED COMPLETELY FROM THE AIRPLANE SURFACE.
(g)
Flush the surface with clean, warm water (160°F maximum).
(h)
Dry the wet surfaces with air or towels.
S 113-012
(3) Remove Heavy Material (grease and exhaust particles) from Smooth Surfaces
(a) Use the procedure to Remove Moderately Heavy Material (oil and mud) from Smooth Surfaces with these changes: 1) Use a heavy duty cleaner from Table III. 2) Let the cleaner soak for 15 minutes maximum.
CAUTION:_______USE CEEBEE MAJORCLEAN WITH CARE. THE ABRASIVES IN THIS CLEANER CAN REMOVE THE LUSTER ON CLAD ALUMINUM. THE CLEANER CAN ALSO DECREASE THE CORROSION RESISTANCE OF ANODIZED ALUMINUM.
3) For stains that are not removed by a heavy duty cleaner, use Ceebee Majorclean.
S 113-013
(4) Remove Material Around Sensitive Components
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