SUBTASK 47-11-01-480-001
(4) Install the protective covers on the ports of the high flow valve [14], overtemperature shutoff
valve [10], OEA exhaust duct [21], tube [46], reducer tee, and oxygen sensor tube [47].
SUBTASK 47-11-01-580-001
(5) Place the air separation module [1] on a clean surface.
SUBTASK 47-11-01-020-007
(6) Do these steps to remove the high flow valve [14] from the air separation module [1]:
(a) Disconnect the NEADS duct [27] from the high flow valve [14].
(b) Disconnect the muscle air duct [9] from the high flow valve [14]
(c) Disconnect the coupling [15] between the high flow valve [14], and the air separation
module [1].
1) Remove the sleeve [13].
2) Discard the two O-rings [16].
(d) Loosen the nut [29] on the strap [26].
1) Separate the strap [26]
SUBTASK 47-11-01-020-008
(7) Do these steps to remove the ASM hose clamps [6]:
(a) Cut the four ties on the surface of the insulation.
(b) Cut the tape at the seam line on the body insulation [64] and aft insulation [62].
NOTE: Be careful not to slice into the insulation, it will be reused.
Keep the forward insulation [63] attached to the body insulation [64] if possible.
(c) Loosen the setscrews [7] on the ASM hose clamps [6].
1) Separate the ASM hose clamps [6].
(d) Remove the muscle air duct [9] with the attached brackets [5].
(e) Remove the NEADS duct [27] with the attached brackets [22].
(f) Remove the ASM hose clamp [6].
SUBTASK 47-11-01-020-009
(8) Remove the aft insulation [62], body insulation [64], and forward insulation [63].
NOTE: Keep the forward insulation [63] attached to the body insulation [64].
END OF TASK
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-11-01
Page 424
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ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details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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