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.
(b) Apply a thin layer of Krytox 240AC perfluoropolyether grease, D50063 to the new
O-rings [16].
(c) Install an O-ring [16] on the flange of the high flow valve [14].
(d) Install an O-ring [16] on the flange of the air separation module [1].
(e) Put the sleeve [13] in its position between the high flow valve [14] and air separation
module [1].
(f) Make sure that the NEADS duct [27] and muscle air duct [9] align with the high flow
valve [14] and ASM mount.
(g) Install the coupling [15].
(h) Attach the muscle air duct [9] to the high flow valve [14].
(i) Attach the NEADS duct [27] to the high flow valve [14].
SUBTASK 47-11-01-420-005
(5) Tighten each setscrew [7] on the three ASM hose clamps [6] to 16 ±2 in-lb (1.8 ±0.2 N·m).
SUBTASK 47-11-01-410-002
(6) Put protective caps on the air separation module [1] for transport.
NOTE: This is to prevent contamination while the air separation module [1] is transported to
the airplane.
I. Air Separation Module Alternate Installation
SUBTASK 47-11-01-420-006
(1) Do these steps to install the air separation module [1] (Figure 402, View B):
(a) Apply a thin layer of compound, C00852, to the threads on the t-bolt of the strap [8].
(b) Apply the epoxy primer, C50285, to the groove where it comes in contact with the
straps [8].
(c) Put the aft insulation [62] on the air separation module [1].
(d) Remove the protective caps on each port.
(e) Align the three tie rods [50] to the ASM mounts [49] (Figure 402, View E).
(f) Install the bolt [53], washer [52], bushing [51], washer [54], and nut [55] through the ASM
mount [49] and tie rod [50] (three locations) (Figure 402, View A-A).
(g) Position the air separation module [1] into the strap [8] (Figure 402, View B).
1) Align all ports and ducts.
2) Hold the air separation module [1] in this position.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
47-11-01
Page 441
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ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details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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