(a)  
6F15 ENG 1 PERF SOL PWR A

 (b)  
6F16 ENG 1 PERF SOL PWR B

 (c)  
6E15 ENG 2 PERF SOL PWR A

 (d)  
6E16 ENG 2 PERF SOL PWR B

 (e)  
6D15 ENG 3 PERF SOL PWR A

 (f)  
6D16 ENG 3 PERF SOL PWR B

 (g)  
6C15 ENG 4 PERF SOL PWR A

 (h)  
6C16 ENG 4 PERF SOL PWR B

 (3)
Do the Test No. 3 - Ground Test - Idle Power (Ref 71-00-00/501).

 S 794-022-N00
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 79-21-03
 ALL  ú ú N02 Page 407 ú Jun 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
LUBRICATION AND SCAVENGE OIL PUMP - REMOVAL/INSTALLATION
________________________________________________________
 1.  General
_______
 A.  This procedure removes and installs the lubrication and scavenge oil
 pump.

 B.  The lubrication and scavenge oil pump is installed on the aft face of the main gearbox at the 6 o'clock position.
 C.  You can get access to the lubrication and scavenge oil pump through the
 thrust reverser halves.

 TASK 79-21-04-004-001-N00
 2.  Remove the Lubrication and Scavenge Oil Pump (Fig. 401)
____________________________________________
 A.  Standard Tools and Equipment
 (1)  
Container - 10 U.S. gallon (38 liter) capacity, used to collect the oil

 (2)  
Puller - PWA 86630 Jackscrew, Pratt & Whitney (2 are necessary) Optional to PWA 88774 Jackscrew Puller

 (3)  
Puller - PWA 88774 Jackscrew, Pratt & Whitney (2 are necessary) Optional to PWA 86630 Jackscrew Puller

 B.  
References

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

 (2)  
AMM 71-11-06/201, Core Cowl Panels

 (3)  
AMM 78-31-00/201, Thrust Reverser System

 (4)  
AMM 79-21-10/401, Magnetic Chip Detector

 (5)  
IPC 79-21-04 Fig. 1

 (6)  
IPC 79-21-05 Fig. 5

 (7)  
IPC 79-22-00 Fig. 05

 (8)  
IPC 79-22-00 Fig. 10

 (9)  
IPC 79-22-00 Fig. 15

 C.  
Access

 (1)  
Location Zone
 412 Engine 1 - Main Gearbox Aft Face 6 o'clock
 422 Engine 2 - Main Gearbox Aft Face 6 o'clock
 432 Engine 3 - Main Gearbox Aft Face 6 o'clock
 442 Engine 4 - Main Gearbox Aft Face 6 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

 D.  
Procedure

 S 864-043-N00
 (1)  For the applicable engine, open these circuit breakers on the power distribution panel - left, P414, and install the DO-NOT-CLOSE tag:
 (a)  
6G15 SCU ALT PWR ENG 1

 (b)  
6G23 ENG SCU 1

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 79-21-04
 ALL  ú ú N03 Page 401 ú Jun 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
2. BOLTS
1. NO. 3 BEARING (11 LOCATIONS)
SCAVENGE
3. ANGLE GEARBOX
OIL TUBE
SCAVENGE OIL TUBE
1 
4.  NO. 1,1.5 AND 
2 BEARING 
10.  ELECTRICAL  SCAVENGE 
CONNECTOR  OIL TUBE 
SEE  A  B  C 
11.  NO. 4 BEARING  PACKING 
SCAVENGE OIL TUBE 

2. BOLT 9. PACKING
8. PACKING
6. PACKING
2
4. NO. 1,1.5 AND 2 BEARING SCAVENGE OIL TUBE
MAIN STRAINER ELEMENT GEARBOX FWD (REF)
5.  PACKING INTEGRATED DRIVE 7. LUBRICATION AND GENERATOR (REF) SCAVENGE OIL PUMP
(VIEW LOOKING UP)
12.  BOLT
A
(2 LOCATIONS)
　
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