38. PACKING
39. ADAPTER F
G 40. BOLT (3 LOCATIONS) 34. OIL COOLER 41. PACKING 11. FUEL PUMP TUBE INLET FUEL 43. BOLT (3 LOCATIONS) H HOSE OUTLET FUEL 36. HSEE OIL COOLER 42. PACKING 11. FUEL PUMP
Figure 401 (Sheet 4) Fuel Pump Installation
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73-11-01
ALL ú ú N02 Page 405 ú Feb 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
71. THERMOCOUPLE PROBE FOR FUEL TEMPERATURE
72. SCREW
65. NUT 73. BRACKET (2 LOCATIONS)
74. PACKING
66. WASHER
75. BRACKET
(2 LOCATIONS)
76. BUSHING 78. BOLT
2 79. BRACKET
77. BOLT
44. EEC WIRING 62. PLUG HARNESS, W5P8
61. PACKING
45. THERMOCOUPLE
PROBE FOR L-B2315 (0000) FUEL TEMPERATURE
70. WASHER
(2 LOCATIONS)
50. DIFFERENTIAL 1
PRESSURE SWITCH
45A. ADAPTER FOR FUEL FILTER,
63. BRACKET S1585
46.
PACKING
47.
NUT
64. NUT
(5 LOCATIONS) 1
(2 LOCATIONS)
48. WASHER
62. PLUG (5 LOCATIONS)
49. PACKING (2 LOCATIONS)61. PACKING
51.
BOLT (4 LOCATIONS)
52.
WASHER (2 LOCATIONS)
53.
PACKING
54.
ADAPTER
FWD
11. FUEL PUMP
58. PACKING
60. BOLT
(6 LOCATIONS) 55. BOLT (3 LOCATIONS)
59. PACKING 6. FMU, M3108
I
1 ENGINES PRE-PW-SB 73-161
57. BRACKET
2 ENGINES POST-PW-SB 73-161
56. BOLT
Fuel Pump Installation
Figure 401 (Sheet 5)
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ALL ú ú N02 Page 406 ú Feb 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(6)
AMM 78-31-00/201, Thrust Reverser System
E.
Access
(1)
Location Zone
412 Engine 1 - Main Gearbox Fwd Face 5 o'clock
422 Engine 2 - Main Gearbox Fwd Face 5 o'clock
432 Engine 3 - Main Gearbox Fwd Face 5 o'clock
442 Engine 4 - Main Gearbox Fwd Face 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 to Remove the Fuel Pump
S 864-075-N00
(1)
Do these steps to prepare the engine for the removal of the fuel pump (11):
(a)
Supply the electrical power (AMM 24-22-00/201).
(b)
Make sure the applicable FUEL CONTROL switch is in the CUTOFF position. 1) Install the DO-NOT-OPERATE tag.
(c)
Push the STAT button on the select panel for the EICAS display.
(d)
Make sure the status page shows on the auxiliary EICAS.
(e)
Make sure the applicable status message, FUEL SPAR VLV 1, 2, 3, or 4, does not show.
___
WARNING: MAKE SURE YOU OPEN THE APPLICABLE CIRCUIT BREAKERS FOR THE
_______ ENGINE IGNITION BEFORE YOU OPEN THE ENGINE CIRCUIT BREAKER FOR THE FUEL CONTROL 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 THE TAILPIPE FIRE CAN OCCUR. THE FIRE CAN CAUSE INJURY TO PERSONS AND DAMAGE TO THE ENGINE.
(f) For the applicable engine, open these circuit breakers and attach the DO-NOT-CLOSE tags: 1) P6 Main Power Distribution Panel
a) 6F01, IGN 1 ENG 1
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