ILF 589, 590, 592-599, 601-603, 606, 607, 610-615, 620, 625-627, 686, 691-699, 833-835, 838, 980-999;
ILF 101, 151, 156-199, 301, 304, 308, 310, 314, 315, 317-319, 323, 331-399, 401, 402, 405, 406, 409,
410, 412, 416, 424, 425, 427-429, 451, 491-504, 507-510, 512-516, 518-520, 523-528, 531-533,
535-537, 541, 542, 552, 554-557, 559-564, 567-569, 571-577, 581, 583, 585, 588, 671, 672, 703,
707-710, 803-813, 821, 822, 831, 832, 836, 837, 841, 842, 851, 852, 854-858, 861-863, 871-874, 947,
948, 968-971, 973 PRE SB 737-24-1205; AIRPLANES WITH STATIC INVERTER WITH LOCKWASHER
HARDWARE CONFIGURATION
1) Install the nut [2], lockwasher [3], and washer [4] on the terminal stud.
a) Tighten the nut [2] to 150 ±5 in-lb (17 ±1 N·m).
2) Install the nut [5], lockwasher [6], and washer [7] on the terminal stud.
a) Tighten the nut [5] to 85 ±5 in-lb (10 ±1 N·m).
ILF 452, 530, 553, 589, 590, 592-599, 601-603, 606, 607, 610-615, 620, 625-627, 691-699, 833-835,
838, 972, 980-999; ILF 101, 151, 156-199, 301, 304, 308, 310, 314, 315, 317-319, 323, 331-399, 401,
402, 405, 406, 409, 410, 412, 416, 424, 425, 427-429, 451, 491-504, 507-510, 512-516, 518-520,
523-528, 531-533, 535-537, 541, 542, 552, 554-557, 559-564, 567-569, 571-577, 581, 583, 585, 588,
671, 672, 703, 707-710, 803-813, 821, 822, 831, 832, 836, 837, 841, 842, 851, 852, 854-858, 861-863,
871-874, 947, 948, 968-971, 973 POST SB 737-24-1205; AIRPLANES WITH STATIC INVERTER WITH
LOCKNUT HARDWARE CONFIGURATION
3) Install the locknut [12] and washer [4] on the terminal stud.
a) Tighten the locknut [12] to 125 ±4 in-lb (14 ±0 N·m).
4) Install the locknut [13] and washer [7] on the terminal stud.
a) Tighten the locknut [13] to 65 ±2 in-lb (7 ±0 N·m).
ILF ALL
(d) Do these steps to install the terminal block covers:
1) Hold the two terminal block covers [11] in place.
2) Install the four screws [8], lockwashers [9], and washers [10] that hold the terminal
block covers.
(e) Install the electrical connector on the static inverter [1].
G. Static Inverter Installation Test
SUBTASK 24-34-21-910-002
(1) Do a check of the static inverter [1] per the steps that follow:
(a) Remove the safety tag and close this circuit breaker:
Standby Power Control Unit, M01720
Row Col Number Name
A 5 C01343 INVERTER REMOTE
(b) Set the AC Meter Selector Switch on the P5–13 panel to the INV position.
(c) Make sure that the AC meter shows these values:
1) AC VOLTS = 110-120
2) CPS FREQ = 390-410
H. Put the Airplane Back to Its Usual Condition
SUBTASK 24-34-21-410-001
(1) Close this access panel:
Number Name/Location
117A Electronic Equipment Access Door
END OF TASK
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-34-21
Page 408
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
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