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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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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