(4)  
AMM 78-31-00/201, Thrust Reverser System

 (5)  
AMM 80-11-01/401, Starter

 E.  
Access

 (1)  
Location Zone 412 Engine 1 - Diffuser and Combustor Case 5 o'clock 422 Engine 2 - Diffuser and Combustor Case 5 o'clock 432 Engine 3 - Diffuser and Combustor Case 5 o'clock 442 Engine 4 - Diffuser and Combustor Case 5 o'clock

 (2)  
Access Panel 415 and 416 Thrust Reverser Halves - Engine 1 425 and 426 Thrust Reverser Halves - Engine 2 435 and 436 Thrust Reverser Halves - Engine 3 445 and 446 Thrust Reverser Halves - Engine 4

 F.  
Prepare for the Installation of the No. 10, 11 or 12 Fuel Injector and Support

 S 224-194-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:

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
~............................................................. | | | 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
 G.  Procedure
 S 424-455-N00
 (1)  
Install the No. 10, 11 or 12 fuel injector and support.

 (a)  
Remove the protection caps.

 (b)  
Lubricate the gasket (19) with the beeswax.

 (c)  
Put the 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. 12 fuel injector, put the bracket (11) on the No. 12 and No. 13 fuel injector (5) with the bolt holes aligned.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(f)  Lubricate the threads of the bolts (21) with engine oil.
 (g)  Install the bolts (21) to attach the fuel injector (5) and the
 bracket (11) if applicable, 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 (21) 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).
 (h)  For the No. 12 fuel injector, attach the bracket (11) to the
 No. 13 fuel injector with the steps that follow:
 1) Lubricate the threads of the bolt (21) with engine oil.
 2) Install the bolt (21) to attach the bracket (11) to the
 No. 13 fuel injector (5).
 3) Tighten the bolt (21) to 65-85 pound-inches (7.3-9.6
 newton-meters).
 4) Install the lockwire or safety cable and safety cable
 ferrule to the bolt (21).
 (i)  Lubricate the packing (20) with the petroleum jelly.
 (j)  Install the packing (20) to the groove on each of the three
 fuel injectors.
 (k)  Lubricate the new packings (3) with the petroleum jelly.
　
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