73-21-07
 ALL  ú ú N01A Page 412 ú Feb 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(2)  Strap Wrench TG-70
 ~..................................................................... | HARNESS CONNECTORS WHERE THE TORQUE ADAPTER (PWA 85749) CAN BE USED | ....................................................................... | CONNECTOR | COMPONENT | ....................................................................... | W3P1 | EEC Alternator (N2 Transducer) | ....................................................................... | W3P15 | 2.5 Bleed Valve Actuator | 2............…........................................................1
 B. Consumable Materials
 (1)  
D00390 Oil - Engine

 C.
References

 (1)  
AMM 70-24-05/201, Electrical Harnesses

 (2)  
AMM 71-00-00/501, Power Plant

 (3)  
AMM 71-11-04/201, Fan Cowl Panels

 (4)  
AMM 71-11-06/201, Core Cowl Panels

 (5)  
AMM 78-31-00/201, Thrust Reverser System

 (6)  
AIPC 73-21-07 Fig. 11

 (7)  
WDM 71-51-11, WDM 71-51-14, WDM 71-51-15, WDM 71-51-18, WDM 71-51-23, WDM 73-21-15, WDM 73-21-25, WDM 73-21-35, WDM 73-21-45, WDM 77-12-21, WDM 77-12-22, WDM 77-12-23, WDM 77-12-24

 (8)  
SSM 73-21-01, SSM 77-12-02

 D.
Access

 (1)  
Location Zones
 412 Engine 1 - HPC Case 7-10 o'clock
 422 Engine 2 - HPC Case 7-10 o'clock
 432 Engine 3 - HPC Case 7-10 o'clock
 442 Engine 4 - HPC Case 7-10 o'clock

 (2)  
Access Panels
 415 Left Thrust Reverser Half - Engine 1
 425 Left Thrust Reverser Half - Engine 2
 435 Left Thrust Reverser Half - Engine 3
 445 Left Thrust Reverser Half - Engine 4

 E.
Procedure

 S 424-055-N00
 (1)  Put the W3 harness on the left side of the HPC with the W3J24 electrical connector at the 10 o'clock position.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 73-21-07
 ALL  ú ú N01A Page 413 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 424-072-N00

 CAUTION:_______ DO NOT TWIST OR BEND THE WIRE HARNESS MORE THAN NECESSARY
 DURING THE INSTALLATION OF THE WIRE HARNESS.  IF THE WIRE
 HARNESS IS TWISTED OR BENT, YOU CAN CAUSE DAMAGE TO THE WIRE

 HARNESS.
 (2)  
Install the W3 harness on the left side of the engine.

 (a)  
Put the W3 harness on the engine. 1) Make sure the tracer cord is pointed outboard and the ends

 are at the first breakout. 2) Make sure the master keyway is pointed inboard.
 S 424-071-N00
 CAUTION: EXAMINE THE HARNESS CONNECTORS AND THE RECEPTACLES THAT THEY
_______ CONNECT TO FOR BENT PINS AND CONTAMINATION. BENT PINS AND CONNECTOR CONTAMINATION CAN CAUSE THE HARNESS TO FAIL.
 USE THE CORRECT ASSEMBLY PROCEDURE, AND TOOLS, FOR THE HARNESS CONNECTOR INSTALLATION (AMM 70-24-05/201). IF YOU USE THE INCORRECT ASSEMBLY PROCEDURE, OR TOOLS, A DAMAGED OR LOOSE CONNECTOR CAN OCCUR. A LOOSE CONNECTOR PERMITS VIBRATION, WHICH CAUSES THE CONTACTS TO WEAR AND DECREASES THE LIGHTNING PROTECTION.
 (3)  
Attach the W3J24 connector to the bracket on the High Pressure Compressor (HPC) as follows:

 (a)  
Remove the protective covers from the W3J24 connector.

 (b)  
Find the bracket for the W3J24 connector at 10 o'clock position on the HPC.

 (c)  
Install the two retainers that attach the connector flange to the bracket.

 (d)  
Lubricate bolt threads with engine oil.

 (e)  
Align the bolt holes and install the bolts.

 (f)  
Tighten the bolts to 36-40 pound-inches (4.067-4.519 newton-meters).
　
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