Boeing 737-600 - Subtask 47-21-04-430-007; Subtask 47-21-04-430-008; Subtask 47-21-04-200-003; Subtask 47-21-04-200-004

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 (Continued)
(f) Install the nut [17] on the check valve [16].
1) Tighten nut [15] and nut [17] to 280 ±28 in-lb (31.6 ±3.2 N·m).
NOTE: Put a second wrench on the check valve [16] to hold it.
SUBTASK 47-21-04-430-007
(5) Do these steps to complete the installation:
(a) Attach the NEADS tube [10] to the high flow valve outlet port.
(b) Tighten the nut [9] to 280 ±28 in-lb (31.6 ±3.2 N·m).
(c) Attach the GSE oxygen port tube [14] to the O2 GSE fitting.
(d) Tighten the nut [13] to 170 ±17 in-lb (19.2 ±1.9 N·m).
(e) Install the screw [11] that attach the NEADS tube [10] to the ASM [18].
SUBTASK 47-21-04-430-008
(6) Install the bonding jumper [12].
SUBTASK 47-21-04-200-003
(7) Use a intrinsically safe approved bonding meter, COM-1550, to measure the electrical
resistance between each of these components and the nearest primary structure (SWPM
20-20-00).
(a) check valve [16]
(b) NEADS tube [10]
SUBTASK 47-21-04-200-004
(8) Make sure that the electrical resistance between each of the components and the structure is
0.010 ohm (10 milliohms) or less (SWPM 20-20-00).
G. Put the Airplane Back to the Usual Condition
SUBTASK 47-21-04-410-004
(1) Close this access panel:
Number Name/Location
192BL ECS Ram Air Inlet Mixing Duct Panel - Forward
SUBTASK 47-21-04-865-005
(2) Remove the safety tags and close these circuit breakers:
CAPT Electrical System Panel, P18-3
Row Col Number Name
ILF 402, 452, 509, 510, 523, 525-528, 576, 577, 971; 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
D 17 C01657 NITROGEN GEN CONT
ILF 568, 569, 581, 583, 585, 588-590, 592-599, 601-603, 606, 607, 610-615, 620, 625-627, 691-699,
833-835, 838, 980-999; ILF 567, 973 POST SB 737-47-1003
D 17 C01657 NITROGEN GENERATION CONTROL
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-21-04
Page 417
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF 402, 451, 452, 494-500, 503, 504, 509, 510, 514, 523-528, 541, 560-564, 567-569, 574-577, 581, 583, 585,
588-590, 592-599, 601-603, 606, 607, 610-615, 620, 625-627, 671, 672, 691-699, 832-835, 838, 856-858, 947,
948, 968-973, 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, 501, 502, 507, 508, 512, 513, 516, 518, 531-533, 535-537, 542,
552-556, 571-573, 686, 703, 707-710, 803-813, 821, 822, 831, 836, 837, 841, 842, 851, 852, 854, 855, 861-863,
871-874 POST SB 737-47-1002 OR POST SB 737-47-1003 OR POST SB 737-47-1015; ILF 491-493, 515,
519, 520, 530, 557, 559 POST SB 737-47-1002 OR POST SB 737-47-1015