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Subtask 72-62-00-010-058
D. Open the thrust reverser doors: (Ref. TASK 78-36-00-010-040)
FOR 1000EM1
451AL, 452AR
FOR 1000EM2
461AL, 462AR
4. Procedure_________
(Ref. Fig. 401/TASK 72-62-00-991-300, 402/TASK 72-62-00-991-301, 403/TASK 72-62-00-991-302, 404/TASK 72-62-00-991-303, 405/TASK 72-62-00-991-304, 406/TASK 72-62-00-991-305, 407/TASK 72-62-00-991-306, 408/TASK 72-62-00-991-307, 409/TASK 72-62-00-991-308)
Subtask 72-62-00-020-053
A. Remove TGB external parts as follows:
(1) Install a suitable container under the TGB to catch residual fluid draining from tubes and control.
(2) Drain the TGB as follows:
(a) Cut and remove the lockwire which safeties the drain plug (20) to the TGB.
(b) Remove the drain plug (20) and let the oil drain.
(c) Install the drain plug (20). Tighten by hand.
(3) Loosen and remove the 4 bolts (110) securing the TGB scavenge tube
(170) to the TGB housing (120) LH side.
(4) Remove and retain gasket (90) located between TGB housing (120) and TGB scavenge tube flange.
(5) Loosen and remove the 4 bolts (230) which secure the oil tank vent tube (220) assy to the TGB housing (120).
(6) Remove and retain gasket (240) located between the oil tank vent tube
(220) flange and the TGB housing (120).
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Drain Plug Removal
Figure 401/TASK 72-62-00-991-300
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Disconnection of Tubes on LH Side of TGB
Figure 402/TASK 72-62-00-991-301
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R Disconnection of Brackets on RH and Lower Side of TGB Figure 403/TASK 72-62-00-991-302- 12 (SHEET 1)
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R Disconnection of Brackets on RH and Lower Side of TGB Figure 403/TASK 72-62-00-991-302- 22 (SHEET 2)
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Installation of the TGB Turnbuckle
Figure 404/TASK 72-62-00-991-303
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Removal of the TGB
Figure 405/TASK 72-62-00-991-304
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Removal of the Mounting Pin
Figure 406/TASK 72-62-00-991-305
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Extraction of Mounting Pin
Figure 407/TASK 72-62-00-991-306
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Extraction of Radial Drive Shaft
Figure 408/TASK 72-62-00-991-307
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Installation of Blanking Items on TGB Housing Ports
Figure 409/TASK 72-62-00-991-308
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(7) Loosen union nut.
CAUTION : USE 2 WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS.
_______ ONE WRENCH TO HOLD THE UNION AND ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT. THIS WILL PREVENT DAMAGE TO THE HARDWARE.
(a) Loosen union nut (100) which attaches the securing TGB oil supply tube (180) to TGB housing (120).
(8) Remove the two bolts (290) securing RH rear bracket (270) and the bleed bias bracket (280) to the right side of the TGB housing (120).
(9) Remove the two bolts (360) securing bracket (60) on the rear face of the TGB housing (120).
(10) Remove the two bolts (40 and 50) securing upper LH bracket (30) to the LH and rear side of TGB housing .
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