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757 FAULT ISOLATION/MAINT MANUAL
GENERATOR DRIVE SYSTEM
COMPONENT  FIG. 102 SHT  QTY ACCESS/AREA  REFERENCE 
CIRCUIT BREAKERS COUPLING - QUICK ATTACH/DETACH EXCHANGER - IDG AIR/OIL HEAT GEN CONT UNIT L, C804 GEN CONT UNIT R, C805 GEN DRIVE DISC L, C807 GEN DRIVE DISC R, C808 GENERATOR - INTEGRATED DRIVE, M10538 1 2 2 2  1 1 1 1 2 2 2  6B2 6B5 6B6 6B1 413AL, 423AL FAN COWL PANELS 413AL, 423AL FAN COWL PANELS 413AL, 423AL FAN COWL PANELS ACCESSORY GEARBOX ACCESSORY GEARBOX FLIGHT COMPARTMENT, P6  24-11-03 24-11-04 24-11-01 * * * * 

* SEE THE WDM EQUIPMENT LIST
Generator Drive System - Component Index
Figure 101

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A

757
FAULT ISOLATION/MAINT MANUAL

FLIGHT COMPARTMENT

Generator Drive System - Component Location
Figure 102 (Sheet 1)

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A

757
FAULT ISOLATION/MAINT MANUAL

FAN COWL 413AL 423AL
INTEGRATED DRIVE
GENERATOR  IDG AIR/OIL HEAT EXCHANGER
SEE B SEE A
IDG AIR/OIL 
HEAT EXCHANGER 
FIREWALL 
(REF) 
IDG AIR/OIL HEAT EXCHANGER 
A 
QUICK 
ATTACH/DETACH 
COUPLING 
ACCESSORY 
GEARBOX (REF) 
INTEGRATED 
DRIVE 
GENERATOR 
INTEGRATED DRIVE GENERATOR 
B 
Component Location 
Figure 102 (Sheet 2) 

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757 MAINTENANCE MANUAL
 GENERATOR DRIVE SYSTEM - ADJUSTMENT/TEST
________________________________________
 1.  General_______
 A.  This procedure has these tasks:
 (1)  
The BITE and RESET Test

 (2)  
The Operational Test for the Left IDG

 (3)  
The Operational Test for the Right IDG

 (4)  
The Frequency Adjustment of the IDG

 B.  Do these tests after an IDG replacement.
 C.  If the spoilers are extended, and electrical power is removed, the spoilers will retract in less than one second.
 TASK 24-11-00-745-001
 2.  The BITE and RESET Test_______________________
 A.  General
 (1)  This procedure does a check of the RESET operation and a BITE test with the bus power control unit (BPCU).
 B.  References
 (1)  AMM 24-22-00/201, Electrical Power - Control
 C.  Access
 (1)  
Location Zones
 212 Flight Compartment (RH Side)
 119/120 Main Equipment Center

 (2)  
Access Panels
 119BL Main Equipment Center Panel

 

 D.  Prepare for the Test
 S 865-047
 (1)  Supply electrical power to the 115V ac buses (AMM 24-22-00/201).
 NOTE: The BPCU BITE procedure can be run with battery power.
____
 E.  Procedure
 S 745-005
 (1)  Do the RESET check:
 (a)  Momentarily push the RESET switch on the front of the BPCU (E5-3).
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