H. Prepare for the Installation
SUBTASK 47-11-01-160-001
(1) Do these steps to clean the air separation module [1] and high flow valve [14]:
(a) Put the air separation module [1] on a clean surface.
NOTE: A bench or a clean work area are the best locations to work on the air separation
module [1].
(b) Remove the protective caps on the ports of the air separation module [1].
(c) Clean the flanges and ports on the air separation module [1] with a clean cotton wiper,
G00034, and alcohol, B00130.
1) Make sure that the ports are free from grease, solvents and unwanted material.
NOTE: Contamination can damage the air separation module [1].
(d) Clean the flange and ports on the high flow valve [14] with a clean cotton wiper, G00034,
and alcohol, B00130.
SUBTASK 47-11-01-420-002
(2) Do these steps to install the muscle air duct [9] and NEADS duct [27] on the air separation
module [1]:
(a) Apply a thin layer of compound, C00852, to the threads on the setscrews [7].
(b) Apply epoxy primer, C50285, to the inner side of the ASM hose clamps [6].
(c) Apply epoxy primer, C50285, to the contact surfaces on the brackets [5] and
brackets [22].
(d) Slide the three ASM hose clamps [6] on the air separation module [1].
(e) Install the body insulation [64] on the air separation module [1].
NOTE: The forward insulation [63] is attached to the body insulation [64].
1) Use the orientation marks to the align the forward insulation [63].
2) Make sure that you can see the ASM nameplate through the cutout on the forward
insulation [63].
(f) Align each ASM hose clamp [6] with the cutouts on the body insulation [64].
(g) Install the muscle air duct [9].
NOTE: A minimum clearance of 0.15 ±0.10 in. (3.81 ±2.54 mm) is recommended
between the brackets and insulation cutouts.
1) Make sure that each bracket [5] is between the ASM hose clamp [6] and air
separation module [1].
2) Make sure that the brackets [5] are aligned correctly (Figure 403).
(h) Install the NEADS duct [27].
NOTE: A minimum clearance of 0.15 ±0.10 in. (3.81 ±2.54 mm) is recommended
between the brackets and insulation cutouts.
1) Make sure that each bracket [22] is between the ASM hose clamp [6] and air
separation module [1].
2) Make sure that the brackets [22] are aligned correctly (Figure 403).
(i) Hand tighten each setscrew [7] on the three ASM hose clamps [6].
NOTE: Tighten enough to keep brackets in place.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-11-01
Page 439
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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ILF 101, 151, 156-199, 301, 304, 308, 310, 314, 315, 317-319, 323, 331-399, 401, 405,
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707-710, 803-813, 821, 822, 831, 832, 836, 837, 841, 842, 851, 852, 854-858, 861-863,
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