21-CONTENTS
GUN Page 12 May 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 757 MAINTENANCE MANUAL
CHAPTER 21 - AIR CONDITIONING
TABLE OF CONTENTS_________________
Chapter
Section
Subject Subject_______ _______ Page____ Effectivity___________
SWITCH - ALTITUDE 21-51-17
Removal/Installation 401 ALL
SWITCH - COMPRESSOR OUTLET 21-51-05
OVERHEAT
Removal/Installation 401 ALL
Adjustment/Test 501 ALL
Compressor Outlet Overheat 501
Switch Test
SWITCH - PACK OVERHEAT 21-51-18
Removal/Installation 401 ALL
Adjustment/Test 501 ALL
Pack Overheat Switch Test 501
VALVE - CABIN AIR SUPPLY CHECK 21-51-15
Removal/Installation 401 ALL
(TASK ORIENTED DATA) 401
Inspection/Check 601 ALL
VALVE - FLOW CONTROL AND SHUTOFF 21-51-01
Maintenance Practices 201 ALL
Install the Flow Control and 205
Shutoff Valve
Remove the Flow Control and 201
Shutoff Valve
Cleaning/Painting 701 ALL
VALVE - PACK LOW LIMIT CONTROL 21-51-11
Maintenance Practices 201 ALL
Do the Low Limit Valve Leak 210
Test
Install the Low Limit Valve 204
Low Limit Valve Operational 206
Test/Pneumatic Check
Remove the Low Limit Valve 201
VALVE - PACK TEMPERATURE CONTROL 21-51-12
Removal/Installation 401 ALL
COOLING PACK TEMPERATURE 21-52-00
INDICATION SYSTEM
Description and Operation 1 ALL
General 1
Component Details 1
Bulb - Pack Temperature 1
Pack Flow Sensor 1
Processor - Pack Flow 1
Operation 1
21-CONTENTS
GUN Page 13 May 28/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
CHAPTER 21 - AIR CONDITIONING
TABLE OF CONTENTS_________________
Chapter
Section
Subject Subject_______ _______ Page____ Effectivity___________
Component Location 101 ALL
Component Index
Component Location
Adjustment/Test 501 ALL
Operational Test - Pack 501
Temperature Indication System
BULB - PACK OUTLET TEMPERATURE 21-52-06
Removal/Installation 401 ALL
PROCESSOR - FLOW SENSOR SIGNAL 21-52-04
Removal/Installation 401 ALL
SENSOR - PACK FLOW 21-52-03
Removal/Installation 401 ALL
RAM AIR SYSTEM 21-53-00
Description and Operation 1 ALL
General 1
Component Details 1
Ram Air Door Actuator 5
Ram Air Exhaust Door 5
Ram Air Inlet Door 1
Temperature Control Card 5
Water Spray Nozzle 5
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