WARNING
KRYTOX 240AC IS AN AGENT THAT IS POISONOUS AND AN IRRITANT.
MAKE SURE ALL PERSONS OBEY THE PRECAUTIONS WHEN KRYTOX
240AC IS USED.
• DO NOT USE IN AREAS WHERE THERE IS HIGH HEAT, SPARKS, OR
FLAMES.
• CLOSE THE CONTAINER WHEN NOT USED.
• DO NOT GET KRYTOX 240AC IN THE EYES, ON THE SKIN, OR ON
YOUR CLOTHES.
• DO NOT BREATHE THE GAS.
• DO NOT EAT KRYTOX 240AC.
(a) Apply a small quantity of Krytox 240AC perfluoropolyether grease, D50063, to the
O-ring [15].
(b) Install the O-ring [15] on the filter head [16].
1) Make sure that the O-ring [15] is fully installed in the O-ring groove on the filter
head [16].
(c) Install the filter bowl [11] on the filter head [16].
1) Make sure that the two parts are concentric.
(d) Install the vee band clamp [12] to the filter bowl [11] and filter head [16].
SUBTASK 47-32-04-420-004
(3) Assemble the insulation jacket [20] to the filter bowl [11].
(a) Put the insulation jacket [20] on the filter bowl [11].
(b) Align the locking eyelets on the insulation jacket [20] with the gaps in the vee band
clamp [12].
(c) Use lockwires to secure the insulation jacket [20] to the vee band clamp [12].
SUBTASK 47-32-04-420-005
(4) Torque the nut on the vee band clamp [12] to 6.3 ±0.4 ft-lb (8.5 ±0.5 N·m)
SUBTASK 47-32-04-420-006
(5) Install the lower anti-collision light power supply (TASK 33-44-02-960-804).
G. Operation Test - NGS Filter Assembly
SUBTASK 47-32-04-860-005
(1) Prepare the airplane for the operational test.
(a) 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
47-32-04
Page 409
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ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details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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