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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
S 864-075-N00
 (5)  
For the applicable engine, remove the DO-NOT-CLOSE tags and close these circuit breakers as follows:

 (a)  
P6 Main Power Distribution Panel
 1) 6F15 ENG 1 PERF SOL PWR A
 2) 6F16 ENG 1 PERF SOL PWR B
 3) 6G15 SCU ALT PWR ENG 1
 4) 6G23 ENG SCU 1
 5) 6E15 ENG 2 PERF SOL PWR A
 6) 6E16 ENG 2 PERF SOL PWR B
 7) 6G16 SCU ALT PWR ENG 2
 8) 6G24 ENG SCU 2
 9) 6D15 ENG 3 PERF SOL PWR A
 10) 6D16 ENG 3 PERF SOL PWR B
 11) 6G17 SCU ALT PWR ENG 3
 12) 6G25 ENG SCU 3
 13) 6C15 ENG 4 PERF SOL PWR A
 14) 6C16 ENG 4 PERF SOL PWR B
 15) 6G18 SCU ALT PWR ENG 4
 16) 6G26 ENG SCU 4

 S 714-073-N00
 (6)  Do the Test No. 6 - Electronic Engine Control (EEC) Idle Test and No. 7 - EEC Static Test (AMM 71-00-00/501).
 TASK 73-21-07-004-079-N00
 4.  Remove the EEC Wiring Harness W4 (Fig. 402)________________________________
 A. Equipment
 (1)  
Strap Wrench TG-70

 (2)  
Torque Adapter PWA 85749 (optional)

 ~..................................................................... | HARNESS CONNECTORS WHERE THE TORQUE ADAPTER (PWA 85749) CAN BE USED | ....................................................................... | CONNECTOR | COMPONENT | ....................................................................... | W4P4 | 2.9 Bleed Valve Soleniod | 2............…........................................................1
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE A
SEE C
SEE E
SEE G
SEE M
SEE O
SEE I
LA9300 (0000)
EEC Wiring Harness W4 Installation Figure 402 (Sheet 1)
E44587
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
SEE  B  A 
W5 HARNESS MASTER KEYWAYS  BOLT 
CLAMP 
W5 HARNESS  W4 HARNESS 
BRACKET  BRACKET 

BOLTS B LA9301 (0000)
EEC Wiring Harness W4 Installation Figure 402 (Sheet 2)
 E44593
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 73-21-07
 ALL  ú ú N01A Page 421 ú Feb 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE  D 
C 
BOLT CLAMP W5 HARNESS  BOLT BOLT 
WASHER  CLAMP 
NUT  W4 HARNESS 
CLAMP W5 HARNESS  BOLT  CLAMP  NUT 
NUT  BOLT W4 HARNESS CLAMP 
CLAMP  BOLT 
W5 HARNESS  CLAMP  W5 HARNESS  NUT NUT CLAMP W4 HARNESS  CLAMP  W4 HARNESS BOLT 
EEC Wiring Harness W4 Installation Figure 402 (Sheet 3) D LA9303 (0000) 

E44595
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