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
737-47-1015 AND POST SB 737-47-1003; 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 POST SB 737-47-1015
(d) Remove the screw [74], spacer [75], washers [73], and nut [72] from the clamp [70] and
clamp [71] (View J, Figure 402 (Sheet 11)).
1) Keep the clamps on the muscle air line and NEADS duct [27].
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
SUBTASK 47-11-01-020-005
(2) Do these steps to disconnect the air separation module [1]:
(a) Remove the clamp [11] between the air separation module [1] and the overtemperature
shutoff valve [10].
1) Discard the O-ring [12].
(b) Disconnect the coupling [18] from the OEA outlet port [17] and the OEA exhaust
duct [21].
1) Remove the sleeve [19].
2) Discard the two O-rings [20].
(c) Disconnect the NEADS duct [27] from the rear spar.
(d) Disconnect the muscle air duct [9] from the air supply duct.
(e) Disconnect the tube [46] from the reducer tee.
(f) Remove the bonding jumper [41], bolts [40], washers [44], and nuts [43] from the
clamps [42] that is attached to the NEADS duct [27].
(g) Remove the bonding jumpers [45], bolts [40], washers [44], and nuts [43] from the
clamps [42] that is attached to the NEADS duct [27].
(h) Disconnect the electrical connectors [48].
(i) Disconnect the oxygen sensor tube [47] from the high flow valve [14].
(j) Remove the bonding jumper [56], screw [58], washers [59], and nut [60] from the jumper
tab [61].
SUBTASK 47-11-01-020-006
(3) Do these steps to remove the air separation module [1] from the airplane:
NOTE: Keep the fasteners for installation.
(a) Hold the air separation module [1] in its position.
(b) Do this step to disconnect the three tie rods [50] from the ASM mount [49]:
1) Remove the bolt [53], bushings [51], washer [52], washer [54], and nut [55].
(c) Loosen the nut [28] on the strap [8].
1) Separate the strap [8].
(d) Remove the air separation module [1].
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-11-01
Page 423
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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