WARNING
DO NOT GET ISOPROPYL ALCOHOL IN YOUR MOUTH, EYES, OR
ON YOUR SKIN. DO NOT BREATHE THE FUMES FROM THE
ISOPROPYL ALCOHOL. KEEP THE ISOPROPYL ALCOHOL AWAY
FROM SPARKS, FLAME, AND HEAT. ISOPROPYL ALCOHOL IS
POISONOUS AND FLAMMABLE, WHICH CAN CAUSE INJURIES TO
PERSONS AND DAMAGE TO EQUIPMENT.
1) Clean the insulation aft insulation [62] with alcohol, B00130.
2) Apply the 3 in. (76 mm) wide Jehier KB-23 tape, G50706, to the seams on the aft
insulation [62].
a) Make sure that no insulation foam is exposed.
b) Make sure that the Jehier KB-23 tape, G50706, is centered between the
insulation sections.
<1> The Jehier KB-23 tape, G50706, must extend a minimum of 1 in.
(2.5 cm) on each sid of the seam.
NOTE: Small gaps no larger than 0.25 in. (6.4 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.
(e) Tighten the nut [28] on the strap [8] to 31 ±1 in-lb (3.5 ±0.1 N·m).
SUBTASK 47-11-01-400-003
(2) Do these steps to connect the ports and ducts:
(a) Put the sleeve [19] in its position between the OEA outlet port [17] and the OEA exhaust
duct [21].
(b) Install the coupling [18].
(c) Put the sleeve [13] in its position between NEA outlet port and high flow valve [14] port.
(d) Install the coupling [15].
(e) If removed, install the overtemperature shutoff valve [10] (TASK 47-11-04-400-801).
(f) Inspect and apply epoxy primer, C50285, as required to the contact surfaces on the
clamp [11].
(g) Install the clamp [11] between the inlet port and the overtemperature shutoff valve [10].
(h) Tighten the clamp [11] to 47 ±3 in-lb (5.3 ±0.3 N.m).
SUBTASK 47-11-01-400-004
(3) Do these steps to attach the muscle air duct [9] and NEADS duct [27] to the air separation
module [1]:
(a) Adjust the position of the P-clamps on the muscle air duct [9] and the NEADS duct [27]
until they are aligned with the brackets [5] and brackets [22] on the ASM hose clamps [6].
(b) Install the bolts [3], washers [4] and nuts [2], that attach the brackets [5] to the P-clamps
on the muscle air duct [9].
(c) Install the bolts [24], washers [23] and nuts [25], that attach the brackets [22] to the
P-clamps on the NEADS duct [27].
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-11-01
Page 418
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ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details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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