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 ALL  ú ú N01 Page 704 ú Oct 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
FUEL INJECTOR AND SUPPORT - REMOVAL/INSTALLATION
________________________________________________
 1.  General
_______
 A.  This procedure removes and installs the fuel injectors and supports.
 B.  There are 24 fuel injectors and supports which are installed circumferentially around the diffuser and combustor case. The eight fuel manifolds, three injectors on each fuel manifold, are connected to the fuel injectors.
 C.  Different procedures are given for each set of three fuel injectors with the same fuel manifold. Each fuel injector has a number on Fig. 401, Sheet 2 to make it easier to identify.
 D.  You can get access to the fuel injectors and supports through the right or left thrust reverser. More access data is given in the steps that follow:
 (1)  
You must remove the No. 2 turbine vane cooling air duct to get access to the No. 7 fuel injector.

 (2)  
You must remove the heat shield for the starter and related accessory to get access to the No. 10, 11, and 12 fuel injectors.

 (3)  
You must remove the right turbine blade cooling air duct to get access to the No. 12 fuel injector.

 (4)  
You must remove the integrated drive generator (IDG) and related accessory to get access to the No. 13, 14, and 15 fuel injectors.

 (5)  
You must remove the No. 3 bearing oil scavenge manifold to get access to the No. 13 fuel injector.

 (6)  
You must remove the oil tank to get access to the No. 16 and 17 fuel injector.

 (7)  
You must remove the No. 4 turbine vane cooling air duct to get access to the No. 20 fuel injector.

 (8)  
You must remove the air vent tube for the diffuser seal to get access to the No. 22 fuel injector.

 TASK 73-11-05-004-001-N00
 2.  Remove the No. 1, 2, or 3 Fuel Injector and Support (Fig. 401)
___________________________________________________
 A.  Standard Tools and Equipment
 (1)
Container - 1 quart (1 liter) capacity, used to collect the fuel

 B.  
References

 (1)  
AMM 71-11-04/201, Fan Cowl Panels

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 73-11-05
 ALL  ú ú N01 Page 401 ú Feb 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE A
SEE B
A
FWD
A
3. PACKING
FERRULE
(2 PLACES)
1. FUEL MANIFOLD  A
2. TRANSFER
SUPPLY TUBE
TUBE
NUT
4. FUEL MANIFOLD (8 PLACES) 
CSEE 5. FUEL INJECTOR (24 PLACES) AND SUPPORT 
B (TYPICAL, 8 PLACES)  0886 L-A0200 
Figure 401 (Sheet 1) Fuel Injector and Support Installation 

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 73-11-05
 ALL  ú ú N01 Page 402 ú Oct 10/88
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
6. BRACKET SEE D
18. BRACKET
7. BRACKET
SEE  E  2  1  24  SEE  N 
23 
17. BRACKET  3 
SEE  E  22  8. BRACKET 
16. BRACKET  4  5. FUEL INJECTOR  21  SEE  N 
SEE  E  AND SUPPORT  9. BRACKET 
5  (24 LOCATIONS)  SEE  M 
20 
15. BRACKET 
6 
SEE  F 
19 
14. BRACKET  10. BRACKET 
7 
SEE  G  SEE  L 
18 

8
13. BRACKET
17
SEE H 9
16
10
12. BRACKET
15 11SEE I 1412 13
57. CLAMP
4. FUEL MANIFOLD
SEE J (8 LOCATIONS)
11. BRACKET
SEE K
(FORWARD LOOKING AFT) A-A
4. FUEL MANIFOLD
21. BOLT (3 LOCATIONS)
20. PACKING
19. GASKET
5. FUEL INJECTOR AND SUPPORT DIFFUSER
AND COMBUSTER CASE BOSS
　
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