30-11-06
ALL ú ú 01 Page 205 ú May 20/98
A
757
MAINTENANCE MANUAL
WARNING: DO NOT GET SOLVENTS IN YOUR EYES, OR YOUR MOUTH, OR
_______ ON YOUR SKIN. DO NO BREATHE THE FUMES FROM SOLVENTS. SOLVENTS ARE HAZARDOUS MATERIALS. REFER TO PRODUCT MATERIAL SAFETY DATA SHEETS (MSDS) AND LOCAL REQUIREMNTS FOR PROPER HANDLING PROCEDURES.
1) Use a clean wiper and solvent to clean an area on the surfaces larger than where you will put sealant.
2) On assembled faying surfaces, use compressed air to remove all the solvent.
3) Clean the surfaces again with a wiper that is lightly moist with solvent.
4) Dry the surfaces with a clean wiper.
(b) Use a brush or clean wiper to apply the primer to the surfaces you will seal. 1) Let the primer dry for a minimum of one hour but not more
than 24 hours.
CAUTION:_______ MAKE SURE ALL SURFACES AND TOOLS THAT TOUCH THE SEALANT
ARE CLEAN. OBJECTS THAT ARE NOT CLEAN CAN CAUSE
CONTAMINATION TO THE SEALANT. CONTAMINATION CAN CAUSE THE
SEALANT TO BOND UNSATISFACTORILY.
(c)
If the surface with primer becomes dirty, clean the surface again and apply primer again.
(d)
Apply masking tape adjacent to the slots and recesses you will seal.
(e)
Apply sealant with a sealing gun.
NOTE: If you cannot get access to an area with the sealing
____ gun, use a paper cone or spatula.
1) To push sealant into slots and recesses, push out a bead of sealant in front of the nozzle of the sealing gun. a) Make sure the slots and recesses are fully filled and
no air is caught below the sealant.
(f)
Use a scraping tool that is not metal to make the sealant level with the masking tape.
(g)
Remove the masking tape while the sealant is wet.
(h)
To make the sealant smooth with the surface, rub the sealant with a clean cloth that is moist with one of the specified solvents.
S 842-021
(12)
Do the Slat Drive System Activation procedure (Ref 27-81-00).
S 842-022
(13)
Do the Thrust Reverser Activation procedure (Ref 78-31-00).
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