S 864-040-N00
(1) Make sure the FUEL CONTROL switch for the applicable engine is in the CUTOFF position.
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE A
MAIN FUEL SUPPLY HOSE (REF)
IGNITION EXCITERS (REF)
(REF) MAIN GEARBOX DISTRIBUTION VALVE STRAINER HOUSING ON FUEL BSEE TRANSMITTER FUEL FLOW
A FWD
Fuel Distribution Valve Strainer Installation Figure 401 (Sheet 1)
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PWA 86459 PULLER FUEL FLOW
4. WASHER TRANSMITTER(4 LOCATIONS)
5. BOLT (4 LOCATIONS)
3. STRAINER COVER 6. TRANSFER HOSE FOR MAIN TUBEFUEL SUPPLY 2. PACKING 24. STRAINER (REF)
1. PACKING
8.
PACKING
9.
PACKING
7. GASKET
10.
BOLT
11.
CLAMP
23. BOLT (4 LOCATIONS) 16. BRACKET
12. NUT
22. WASHER (4 LOCATIONS) 13. CLAMP
21. ADAPTER FOR
FUEL FLOW 14. BOLT
TRANSMITTER (2 LOCATIONS)
FUEL
DISTRIBUTION VALVE 12. NUT 1 15. BOLT
20. CLAMP
17. CLAMP
19. CLAMP
18. CLAMP
10. BOLT
16. BRACKET 2B
1
ENGINES PRE-PW-SB 73-164
2
ENGINES POST-PW-SB 73-164
Fuel Distribution Valve Strainer Installation Figure 401 (Sheet 2)
G21358
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 864-054-N00
WARNING: MAKE SURE YOU OPEN THE APPLICABLE CIRCUIT BREAKERS FOR THE
_______ ENGINE IGNITION BEFORE YOU OPEN THE ENGINE CIRCUIT BREAKER FOR THE FUEL CONT VALVE. THE IGNITER PLUGS CAN START THE IGNITION AUTOMATICALLY IF YOU DO NOT OPEN THE CIRCUIT BREAKERS. IF THE COMBUSTION CHAMBER HAS FUEL IN IT, AN INTERNAL ENGINE FIRE OR A TAILPIPE FIRE CAN OCCUR. THE FIRE CAN CAUSE INJURY TO PERSONS AND DAMAGE TO THE ENGINE.
(2)
For the applicable engine, open these circuit breakers and attach the DO-NOT-CLOSE tags:
(a)
P6 Main Power Distribution Panel
1) 6F01, IGN 1 ENG 1
2) 6G19, STBY IGN ENG 1
3) 6K19, IGN 2 ENG 1
4) 6F02, IGN 1 ENG 2
5) 6G20, STBY IGN ENG 2
6) 6K20, IGN 2 ENG 2
7) 6F03, IGN 1 ENG 3
8) 6G21, STBY IGN ENG 3
9) 6K21, IGN 2 ENG 3
10) 6F04, IGN 1 ENG 4
11) 6G22, STBY IGN ENG 4
12) 6K22, IGN 2 ENG 4
S 864-053-N00
(3)
For the applicable engine, open this circuit breaker and install the DO-NOT-CLOSE tag:
(a)
P6 Main Power Distribution Panel
1) 6L10, FUEL CONT VALVE ENG 1
2) 6L11, FUEL CONT VALVE ENG 2
3) 6L12, FUEL CONT VALVE ENG 3
4) 6L13, FUEL CONT VALVE ENG 4
(4)
Open the right fan cowl panel (AMM 71-11-04/201).
S 014-045-N00
S 044-047-N00
WARNING: DO THE THRUST REVERSER DEACTIVATION PROCEDURE TO PREVENT THE
_______ OPERATION OF THE THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
(5) Do this procedure: Thrust Reverser Deactivation for Ground Maintenance (AMM 78-31-00/201).
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