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)
G. Pressurize the ECS Air Supply System
SUBTASK 47-00-00-780-001
(1) Pressurize the pneumatic system (TASK 36-00-00-860-801).
NOTE: Use of engine(s) air to supply pneumatic pressure for this task is not recommended. All
areas around operating engines are dangerous. If you must use the engine(s) to
supply pneumatic power, make sure that you obey all applicable WARNINGS.
(a) Make sure that these switches on the P5–10 panel are in the positions shown
(Table 202):
Table 202/47-00-00-993-803
SWITCH POSITION
APU Bleed ON (if APU is running) if not, OFF
L PACK HIGH
R PACK OFF
Engine BLEED 1 ON (if engine is running) if not, OFF
Engine BLEED 2 ON (if engine is running) if not, OFF
Cabin Temp AUTO
ISOLATION VALVE OPEN
ILF 568, 569, 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, 301, 304, 308, 310, 314, 315, 317-319, 323, 331-399, 406, 409, 410, 412, 424, 425, 427-429, 451,
501-504, 507, 512-514, 516, 518, 524, 531-533, 535, 537, 552-556, 560-562, 567, 804-807, 812, 821, 822, 831, 832,
836, 837, 841, 842, 851, 852, 857, 858, 947, 948 POST SB 737-47-1003
L RECIRC FAN AUTO
R RECIRC FAN AUTO
ILF 402, 452, 509, 510, 523, 525-528, 576, 577; ILF 151, 156-199, 401, 405, 416, 508, 536, 541, 542, 571-575, 671, 672,
686, 703, 707-710, 803, 808-811, 813, 854-856, 861-863, 871-874, 968-970, 972, 973 POST SB 737-47-1003
RECIRC FAN AUTO
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 47-00-00-860-015
(2) To supply conditioned air, do this task: Supply Conditioned Air with a Cooling Pack,
TASK 21-00-00-800-803.
SUBTASK 47-00-00-780-002
(3) Do a check of the manifold duct pressure.
(a) Look at the dual duct pressure gage on the P5 panel.
(b) Make sure that the L and R duct pressure is 20 psig (138 kPa) or more.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-00-00
Page 215
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
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