(a) Remove the two screws [6] that attach the fanning strip to the IDG [10].
NOTE: Keep the screws [6] for the installation.
(b) Remove the two screws [8] with washer [27] to remove the cover [7] from the IDG [10].
(c) Remove the four nuts [9] from the power feeder terminals on the IDG [10].
(d) Remove the four power feeder leads [5].
(e) Loosely install the four nuts [9] on the power feeder terminals of the IDG [10].
NOTE: If the new IDG does not have four power feeder nuts, keep the nuts for reuse.
1) Tighten the nuts [9] with your hand only.
(f) Loosely attach the cover [7] to the IDG [10] with the two screws [8].
SUBTASK 24-11-11-020-005
(6) Do these steps to remove the IDG [10] (Figure 401):
(a) Make sure that the VSCF and IDG jack adapter, SPL-1634, is installed on the low profile
hydraulic jack, COM-1443.
(b) Put the jack under the IDG [10] and raise the jack until the adapter engages with the
IDG [10].
(c) Use the strap to attach the IDG [10] to the adapter.
CAUTION
MAKE SURE THAT YOU APPLY ONLY SUFFICIENT PRESSURE WITH
THE JACK TO HOLD THE WEIGHT OF THE IDG. TOO MUCH PRESSURE
ON THE IDG OR FAILURE TO HOLD THE IDG CORRECTLY CAN CAUSE
DAMAGE TO THE INPUT SEAL.
(d) Continue to raise the jack until the weight of the IDG [10] is held by the jack.
(e) Remove the lockwire and loosen the Quick Attach/Detach (QAD) tension bolt on the QAD
ring.
(f) Loosen the QAD tension bolt until the alignment marks on the QAD ring and IDG housing
align.
NOTE: In this position, the QAD ring is in the open position and the clamping lugs will be
disengaged.
NOTE: If the QAD ring turns off the alignment marks on the adapter plate, the IDG
cannot be removed. If this occurs, turn the QAD tension bolt to keep the
alignment during the IDG removal.
(g) Move the IDG [10] forward until the input shaft is free of the accessory gearbox and QAD
ring, then move the IDG [10] outboard and away from the power plant.
(h) Remove the O-ring [16] from the input shaft on the IDG [10].
1) Discard the O-ring [16].
(i) Put the IDG [10] on a cart or pallet.
1) To lift the IDG [10] from Jack/Adapter Assembly after removal, install the generator
lifting eye, SPL-1626, on the IDG [10] housing to facilitate hoist or crane usage.
2) Use hoist or crane to move IDG [10] to Jack/Adapter Assembly before installation.
SUBTASK 24-11-11-790-002
(7) Inspect the accessory gearbox magnetic/sealol seal for leaks, do this task:
TASK 72-60-00-200-802-F00.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-11-11
Page 404
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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