ABX 001-007, 011, 012, 016-019, 021, 022, 025, 101, 109, 114, 115 (Continued)
WARNING
DO NOT GET METHYL ETHYL KETONE (MEK) IN YOUR MOUTH OR
EYES, OR ON YOUR SKIN. DO NOT BREATHE THE FUMES FROM MEK.
PUT ON A RESPIRATOR, PROTECTIVE SPLASH GOGGLES, AND
GLOVES WHEN YOU USE MEK. KEEP MEK AWAY FROM SPARKS,
FLAME, AND HEAT. MEK IS A POISONOUS AND FLAMMABLE SOLVENT
WHICH CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO
EQUIPMENT.
(a) Clean the mating surface of the fan case with a cloth moist with solvent, B00148.
1) Rub the surface dry with a clean cloth.
(b) Apply the packing ribbon to the inner diameter of the mating surface of the fan case
(Figure 401).
1) The polysulfide potting compound, A50365 [C01-013] must extend the full length of
the mating surface and be in a circumferential direction.
(c) Use the scissors, STD-761 to cut the plastic sheeting, G50305 (0.003-0.006 inch
(0.08-0.15 mm) thick, or equivalent) to the acoustical liner dimensions.
(d) Cut notches where the bolt holes will be.
(e) Apply the polyethylene to the fan case (use a constant pressure).
ABX 001-007, 011, 012, 016-019, 021, 022, 025, 101, 109, 114, 115, 314-999
SUBTASK 72-33-05-434-016-G00
(3) Install the liner as follows:
(a) Make sure all the mating surfaces are clean and without deterioration.
(b) Apply a thin layer of Esnalube 382 compound, D00031 [P06-038] to the retainer screw
threads.
(c) Apply a thin coat of lubricant (petroleum jelly, D50223 [C02-008]) to the key wedges at
the forward end of the liners.
CAUTION
DO NOT USE A HAMMER OR A MALLET TO PUT THE LINER IN
POSITION. YOU WILL CAUSE DAMAGE TO THE LINER.
(d) Insert the forward edge of the liner into the circumferential groove in the case.
NOTE: If necessary, some bumper material may be removed from the liner to help it to fit
correctly. Use a power motor with an abrasive sanding disc to remove the
bumper material.
(e) Apply a continuous forward force on the liners until the bushings align with the bolt holes
in the case.
(f) Tighten the retainer screws to 55-70 pound-inches (6.2-7.9 newton meters).
(g) Tighten the screws in the center of the liner first, then work to the ends of the liner.
(h) Apply the silicone RTV Silicone Elastomer adhesive, A50311 [C01-006] or RTV 108
adhesive, A00944 [C01-056] (black or clear) to the areas around the liner.
1) Make sure the adhesive is at the same level as the adjacent surfaces.
767
AIRCRAFT MAINTENANCE MANUAL
CF6-80A SERIES ENGINES
72-33-05
NoC
Page 407
D633T1B7 Apr 22/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ABX 001-007, 011, 012, 016-019, 021, 022, 025, 101,
109, 114, 115, 314-999
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