12-25-01
ALL ú ú 01 Page 337 ú Sep 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
S 843-024
WARNING: WEAR CLOTHING AND EQUIPMENT THAT WILL PREVENT INJURY WHEN YOU
_______ CLEAN THE AIRPLANE. THE LIQUIDS USED IN THIS PROCEDURE CAN CAUSE INJURY TO SKIN AND EYES. WET AIRPLANE SURFACES ARE DANGEROUS WHEN YOU WALK ON THEM.
(11)
Wear gloves and goggles to prevent injury to your skin and eyes. Wear a safety harness when you walk on wet surfaces above the ground.
S 843-008
(12)
Do not let the tires stay in the liquid that was used to clean the airplane.
S 843-022
CAUTION: MAKE SURE MIXTURE OF WATER AND CLEANER DOES NOT GET IN THE
_______ STEEL OR CARBON BRAKE HEAT SINKS. CONTAMINATION CAN CAUSE DAMAGE TO CARBON BRAKES AND REDUCE BRAKE PERFORMANCE FOR CARBON AND STEEL BRAKES.
(13) Make sure the brakes are properly covered.
S 843-009
CAUTION: DO NOT USE A CLEANER IF IT IS IN A STRATIFIED (NOT MIXED)
_______ CONDITION. A CLEANER THAT IS STRATIFIED CAN STAIN OR CAUSE CORROSION TO AIRPLANE SURFACES.
(14) Examine the cleaner before you use it. If the cleaner does not look mixed, then mix it again. Examine the cleaner again after one hour. Discard the cleaner if it does not stay in a mixed condition.
F. Clean the Airplane
S 113-010
(1) Remove Light Material (dust and dirt) 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.
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12-25-01
ALL ú ú 01 Page 338 ú Sep 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
CAUTION: DO NOT USE THE CLEANERS IN HIGHER CONCENTRATIONS THAN
_______ SHOWN IN TABLE 301. HIGHER CONCENTRATIONS CAN CAUSE DAMAGE TO ACRYLIC WINDOWS, STAINS ON PAINTED SURFACES, AND CORROSION ON METALS.
(b) Mix the water-base alkaline cleaner from Table 301 for the condition of the surface that you will clean.
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.
(c)
Apply water to the area that you will clean.
(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 302.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
12-25-01
ALL ú ú 01 Page 339 ú Sep 28/01
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