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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
SEE D
2
MAIN
LUBRICATION AND GEARBOX
SCAVENGE OIL PUMP ADAPTER
1
ASSEMBLY
137. PACKING
142. NUT
FWD
135. NO. 3 BEARING OIL
141. BOLT
SCAVENGE HOSE AND MANIFOLD ASSEMBLY
SEE C 138. BRACKET
140. NO. 3 BEARING OIL
TEMPERATURE HARNESS
139. BOLT
CONNECTOR, W5P13 (3 LOCATIONS)
1 ENGINES PRE-PW-SB 79-86
2 ENGINES POST-PW-SB 79-86
ENGINES POST-PW-SB 73-84 AND POST-PW-SB 79-75
L-B4294 (1096)
B
146.
BOLT
147.
NUT
150. CLAMP BRACKET
141.
BOLT
142.
NUT
144. BOLT
BRACKET
143. CLAMP
148. BOLT
145. NUT
149. NUT L-B2520 (0000)
C D L-B2518 (0000)
No. 3 Bearing Oil Scavenge Manifold Installation
Figure 404 (Sheet 3)
G34361
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73-11-05
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
D. Prepare to Remove the No. 13, 14 or 15 Fuel Injector and Support
S 864-070-N00
(1) Make sure the applicable FUEL CONTROL switch is in the CUTOFF position.
S 864-071-N00
WARNING: MAKE SURE YOU OPEN THE CIRCUIT BREAKERS FOR THE ENGINE IGNITION
_______ BEFORE YOU OPEN THE FUEL CONT VALVE. THE IGNITER PLUGS WILL AUTOMATICALLY FIRE IF YOU ARE OUT OF ZERO DETENT, NACELLE ANTI-ICE IS ON, CON IGNITION SWITCH IS SET TO "ON", OR ENGINE START SWITCH IS PULLED TO "ON". IF THE COMBUSTION CHAMBER HAS FUEL IN IT, AN INTERNAL ENGINE OR A TAILPIPE FIRE CAN OCCUR. THE FIRE CAN CAUSE INJURY TO PERSONS OR DAMAGE TO THE ENGINE.
(2)
For the applicable engine, open these circuit breakers and install the DO-NOT-CLOSE tags:
(a)
P6 Main Power Distribution Panel
1) 6F1 IGN 1 ENG 1
2) 6F2 IGN 1 ENG 2
3) 6F3 IGN 1 ENG 3
4) 6F4 IGN 1 ENG 4
5) 6K19 IGN 2 ENG 1
6) 6K20 IGN 2 ENG 2
7) 6K21 IGN 2 ENG 3
8) 6K22 IGN 2 ENG 4
9) 6G19 STBY IGN ENG 1
10) 6G20 STBY IGN ENG 2
11) 6G21 STBY IGN ENG 3
12) 6G22 STBY IGN ENG 4
S 864-072-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
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
2) 6L11 FUEL CONT VALVE ENG 2
3) 6L12 FUEL CONT VALVE ENG 3
4) 6L13 FUEL CONT VALVE ENG 4
S 014-382-N00
(4) Open the fan cowl panels (AMM 71-11-04/201).
S 044-384-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).
S 014-383-N00
(6)
Open the core cowl panels (AMM 71-11-06/201).
S 014-385-N00
WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU OPEN THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
(7)
Open the thrust reversers (AMM 78-31-00/201).
E.
Procedure
S 014-074-N00
(1)
Remove the IDG (AMM 24-11-01/401).
S 024-439-N00
(2)
Remove the No. 13, 14 or 15 fuel injector and support.
(a)
Remove the heat shield (112) with the steps that follow (Fig. 402, View D): 1) Remove the screws (110) and the washers (111).
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