(d) Install the 12-point nuts [9] or the preferred 6-point Spiralock nuts and tighten to
156 ±12 in-lb (18 ±2 N·m).
NOTE: For the 6-point Spiralock nut, the nut should have no resistance while it spins
down the terminal stud. If resistance is felt, do a check for galling on the stud. If
galling is found, the terminal block should be replaced.
1) Shake the power feeder leads [5] in the vertical direction near the IDG [10] to make
sure that they are secure.
NOTE: The power feeder leads that are not secure can become loose during high
vibrations.
a) If the power feeder leads [5] are not secure, loosen the nuts [9], re-position the
power feeder leads [5], and re-tighten to 156 ±12 in-lb (18 ±1 N·m).
(e) Attach the cover [7] to the IDG [10] with the two screws [8] and washer [27].
1) Make sure that the cover is correctly aligned with the power feeder leads [5].
2) Make sure that the cover orientation is correct.
a) Make sure that the terminal plug and the cover [7] do not touch.
b) Make sure that the cover [7] is installed correctly.
NOTE: The cover can accidently be installed incorrectly by 180 degrees.
3) Tighten the screws [8] to 21 ±1 in-lb (2 ±0 N·m).
(f) Attach the fanning strip and the ground wires to the IDG [10] with the two screws [6].
NOTE: The fanning strip is attached to the power feeder leads [5].
1) Apply Never-Seez NSBT compound, D00006, to the threads of the screws [6].
2) Tighten the screws [6] to 48-53 pound-inches (5.4-6.0 newton-meters).
SUBTASK 24-11-11-420-003
CAUTION
USE TWO WRENCHES TO TIGHTEN THE TUBE COUPLING NUTS. USE ONE
TO HOLD THE MATING PART, AND THE OTHER TO TIGHTEN THE
COUPLING NUT. IF YOU DO NOT USE TWO WRENCHES, DAMAGE TO THE
TUBES AND MATING PART CAN OCCUR.
(6) Install the oil-in line [14] and the oil-out line [1] as follows:
(a) Remove the protective covers from the oil-in line [14] and the oil-out line [1].
(b) Connect the oil-in line [14] to the oil-in union.
(c) Connect the oil-out line [1] to the oil-out union.
(d) Tighten the oil-in line [14] to 700 ±35 in-lb (79 ±4 N·m).
(e) Tighten the oil-out line [1] to 500 ±25 in-lb (56 ±3 N·m).
SUBTASK 24-11-11-420-004
CAUTION
MAKE SURE THAT YOU ASSEMBLE THE LANYARD ON THE BRACKET
FIRST. THIS PREVENTS DAMAGE TO THE IDG ACCESS PANEL ON THE
ENGINE COWL.
(7) Connect the IDG lanyards per the steps that follow:
(a) Position lanyards on the IDG bracket.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-11-11
Page 415
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
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