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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(4)
AMM 78-31-00/201, Thrust Reverser System
E.
Access
(1)
Location Zone 412 Engine 1 - Diffuser and Combustor Case 2 o'clock 422 Engine 2 - Diffuser and Combustor Case 2 o'clock 432 Engine 3 - Diffuser and Combustor Case 2 o'clock 442 Engine 4 - Diffuser and Combustor Case 2 o'clock
(2)
Access Panel
416 Right Thrust Reverser Half - Engine 1
426 Right Thrust Reverser Half - Engine 2
436 Right Thrust Reverser Half - Engine 3
446 Right Thrust Reverser Half - Engine 4
F.
Prepare for the Installation of the No. 4, 5 or 6 Fuel Injector and Support
S 224-153-N00
(1)
Examine the clearance between the outer diameter of the support (5) and the inner diameter of the diffuser and combustor case boss.
(a)
Make sure the clearance is in the limits that are given in the table below:
~............................................................. | | | NEW PART REFERENCE | CLEARANCE | | | | DIMENSIONS | LIMITS | | PART | | INCHES | INCHES | | NAME | DIA | (MM) | (MM) | | | ............................................... | | | MIN | MAX | MIN | MAX | ............................................................... | SUPPORT | OD | 1.821 | 1.823 | | | | | | (46.254) | (46.304) | 0.001 | 0.005 | ......................................... (0.026) | (0.127) | | CASE | ID | 1.824 | 1.826 | | | | BOSS | | (46.330) | (46.380) | | | 2.........….....…...........…...........…..........…..........1
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73-11-05
ALL ú ú N01 Page 456 ú Oct 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
G. Procedure
S 424-445-N00
(1)
Install the No. 4, 5 or 6 fuel injector and support.
(a)
Remove the protection caps.
(b)
Lubricate the new gasket (19) with the beeswax.
(c)
Put the new gasket (19) on the boss on the diffuser and combustor case.
(d)
Install the fuel injector (5) in the boss on the diffuser and combustor case.
NOTE: Turn or lift the fuel injector, as it is necessary, to
____ install the fuel injector in the diffuser and combustor case.
1) Align the bolt holes in the support with the bolt holes in the diffuser and combustor case.
(e)
For the No. 4 fuel injector, put the bracket (18) on the fuel injector (5) with the bolt holes aligned.
(f)
For the No. 5 fuel injector, put the bracket (16, 17) on the fuel injector (5) with the bolt holes aligned.
(g)
For the No. 6 fuel injector, put the bracket (15) on the fuel injector (5) with the bolt holes aligned.
(h)
Lubricate the threads of the bolts (21) with engine oil.
(i)
Install the bolts (21) to attach the fuel injector (5) and the applicable brackets to the diffuser and combustor case. 1) Tighten the bolts (21) to 65-85 pound-inches (7.3-9.6
newton-meters). 2) Tighten the bolts again to 65-85 pound-inches (7.3-9.6 newton-meters) until you keep the necessary torque. 3) Install the lockwire or safety cable and safety cable ferrule to the bolts (21).
(j)
Lubricate the new packing (20) with the petroleum jelly.
(k)
Install the new packing (20) to the groove on each of the three fuel injectors (5).
(l)
Lubricate the new packings (3) with the petroleum jelly.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
73-11-05
ALL ú ú N01 Page 457 ú Oct 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(m)
Install the new packings (3) on each end of the transfer tube (2).
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