(a) Install the body insulation [64] on the air separation module [1].
NOTE: Install the insulation over the air separation module [1] such that there is a
0.15 ±0.10 in. (3.81 ±2.54 mm) clearance between the brackets and insulation
cutouts.
(b) Use the orientation marks to the align the forward insulation [63].
(c) Install the forward insulation [63] on the air separation module [1].
NOTE: Install the forward insulation [63] such that the ASM nameplate is visible.
(d) Apply 3 in. (76 mm) wide tape to the seams of each insulation piece.
(e) Make sure no insulation foam is exposed.
(f) Make sure that the Jehier KB-23 tape, G50706, is centered between the insulation
sections, the Jehier KB-23 tape, G50706, should extend at least 1 in. (2.5 cm) on either
side of the seam.
NOTE: Small gaps no larger than 0.25 in. (6.35 mm) are acceptable along the seam, as
long as, the gap does not extend through the entire seam and is covered by tape.
The ASM surface must not be visible through the gap.
(g) Make sure there are no gaps between the foam and the outside diameter of the air
separation module [1], except where bunching occurs.
NOTE: If bunching occurs, make sure the gap is 0.25 in. (6.35 mm) or less.
(h) Install the ties (ECC-A fiberglass tape, G51019, ECC-A fiberglass tape, G51020, or
ECC-B fiberglass tape, G51066) around the exterior surface of the insulation.
NOTE: Use a square knot on each tie (ECC-A fiberglass tape, G51019) to prevent
fraying. The loose ends of the tie must be tucked under the ties, between the tie
and the insulation. A knot shall also be placed on the end of the tie to prevent
fraying. The end of the insulation tie must be tucked under itself (between the tie
and foam) to prevent the ends from moving around during shipping, installation
or service.
(i) Make sure that the ties (ECC-A fiberglass tape, G51019, ECC-A fiberglass tape, G51020,
or ECC-B fiberglass tape, G51066) are tightly attached to the insulation.
NOTE: Ties (ECC-A fiberglass tape, G51019) may push down on insulation sufficiently to
keep its location, but not to the extent that visible gaps occur.
H. Install the Air Separation Module
SUBTASK 47-11-01-420-001
(1) Do these steps to install the air separation module [1].
(a) Remove the protective caps from the air separation module [1] ports.
(b) Position the air separation module [1] into the strap [8] and strap [26].
1) Align all the ports and ducts.
2) Hold the air separation module [1] in this position.
(c) Tighten the nut [29] on the strap [26] to 31 ±1 in-lb (3.5 ±0.1 N·m).
(d) Do these steps to secure the aft insulation [62]:
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-11-01
Page 417
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF 402, 452, 509, 510, 523, 525-528, 568, 569, 576, 577, 581, 583, 585, 588-590,
592-599, 601-603, 606, 607, 610-615, 620, 625-627, 691-699, 833-835, 838, 971, 980-999;
ILF 101, 151, 156-199, 301, 304, 308, 310, 314, 315, 317-319, 323, 331-399, 401, 405,
406, 409, 410, 412, 416, 424, 425, 427-429, 451, 501-504, 507, 508, 512-514, 516, 518,
524, 531-533, 535-537, 541, 542, 552-556, 560-562, 567, 571-575, 671, 672, 686, 703,
707-710, 803-813, 821, 822, 831, 832, 836, 837, 841, 842, 851, 852, 854-858, 861-863,
871-874, 947, 948, 968-970, 972, 973 POST SB 737-47-1003
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