GUN Page 6 May 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
CHAPTER 24 - ELECTRICAL POWER
TABLE OF CONTENTS
_________________
Chapter
Section
Subject_______ Subject_______
BATTERIES 24-31-00
Description and Operation
General
Component Details
APU Battery Charger
Interlock Relay
Batteries
Battery Chargers
Battery Current Monitor
Battery Shunts
DC Under Voltage Sensing
Relay
Main Battery Charger
Detection Relay
Main Battery Charger Disable
Relay
Main Battery Relay
Main Battery Transfer Relay
Main/APU Battery Charger
Detection Enable Relay
Operation
Function Description
Component Location
Component Index
Component Location
BATTERY - APU 24-31-03
Removal/Installation
BATTERY - MAIN 24-31-01
Removal/Installation
CHARGER - APU BATTERY 24-31-04
Removal/Installation
CHARGER - MAIN BATTERY 24-31-02
Removal/Installation
MONITOR - APU BATTERY CURRENT 24-31-07
Removal/Installation
[*] AIRPLANES WITH EXTENDED STANDBY POWER;
MONITOR - MAIN BATTERY CURRENT 24-31-05 Removal/Installation RELAYS - MAIN BATTERY AND MAIN 24-31-06 BATTERY TRANSFER Removal/Installation
Page____ Effectivity
1 ALL
1
1
7
1
1
6
5
6
6
6
5
6
7
7
7
101 ALL
401 ALL
401 ALL
401 ALL
401 ALL
401 [*]
401 ALL
401 ALL
24-CONTENTS
GUN.1 Page 7 Sep 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
CHAPTER 24 - ELECTRICAL POWER
TABLE OF CONTENTS
_________________
Subject
_______
SHUNT - MAIN BATTERY Removal/Installation TRANSFORMER - RECTIFIER
Description and Operation General Component Details
APU Start TRU Fan Control
Relay APU TRU Start Relay DC Tie Control Unit DC Tie Relay Transformer-Rectifier Units
Operation
Functional Description
Component Location Component Index Component Location
RELAY - APU START TRU FAN CONTROL Removal/Installation RELAY - APU TRU START Removal/Installation RELAY - DC TIE Removal/Installation TRANSFORMER Removal/Installation TRU - APU START Removal/Installation UNIT - DC TIE CONTROL Removal/Installation
Chapter SectionSubject
24-31-09
24-32-00
24-32-06
24-32-0524-32-0224-32-0124-32-0424-32-03
Page
401
1 114
411144101
401
401
401
401
401
401
Effectivity
ALLALL
ALL
ALLALLALLALLALLALL
24-CONTENTS
GUN Page 8 May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
CHAPTER 24 - ELECTRICAL POWER
TABLE OF CONTENTS
_________________
Chapter Section
Subject_______ Subject
STANDBY POWER 24-33-00
Description and Operation
General
Component Details
AC and DC Standby Bus Off
Relays
AC Standby Power Relay
APU Battery Charger
Detection Relay Battery Discharge Indication Inhibit Relay Extended Standby Power Indication Relay Main/APU Battery Tie Remote
Control Circuit Breaker Standby Power Control Panel Standby Power Relay Static Inverter
Operation
Functional Description
Component Location
Component Index
Component Location
Inspection/Check BREAKER - MAIN/APU BATTERY TIE 24-33-02 REMOTE CONTROL CIRCUIT Removal/Installation [*] AIRPLANES WITH EXTENDED STANDBY POWER
INVERTER - STATIC 24-33-03 Removal/Installation PANEL - STANDBY POWER CONTROL 24-33-04 Removal/Installation RELAYS - STANDBY POWER 24-33-01 Removal/Installation DC METERS 24-34-00
Description and Operation
General
Operation
Functional Description
EXTERNAL POWER 24-40-00
______________Page____ Effectivity
1 ALL
1
1
4
4
4
4
4
4
1
4
1
5
5
101 ALL
601 ALL
401 [*]
401 ALL
401 ALL
401 ALL
1 ALL
1
1
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