737-300 400 500 AMM 飞机维护手册 AIRBORNE AUXILIARY POWER 1(3)

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 Inspection/Check 601 ALL Cleaning/Painting 701 ALL UNIT - IGNITION 49-41-31 Removal/Installation 401 ALL
 AIR 49-50-00
___ APU COOLING AIR SYSTEM 49-51-00
 Description and Operation 1 ALL General 1 Actuator - Pneumatic 1 Duct - Cooling Air Crossover 4 Duct - Cooling Air Inlet 1 Fan - Cooling 1 Valve - Cooling Air Shutoff 1 Operation 4
 Maintenance Practices 201 ALL Cleaning - Cooling Fan Inlet 206 Screen Examination - Cooling Fan 201 Inlet Screen ACTUATOR - PNEUMATIC 49-51-32 Removal/Installation 401 ALL FAN - COOLING AIR 49-51-11 Removal/Installation 401 ALL FILTER - COOLING AIR SHUTOFF 49-51-22
 VALVE PNEUMATIC LINE Removal/Installation 401 ALL Cleaning/Painting 701 ALL
 VALVE - COOLING AIR SHUTOFF 49-51-21 Removal/Installation 401 ALL Adjustment/Test 501 ALL
 General 501 Functional Test 502 Operational Test 501

 49-CONTENTS

 BEJ Page 7 Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / GTCP85-129 SERIES /737-300/400/500/ ENGINES/MAINTENANCE MANUAL ////////////////////////
CHAPTER 49 - AIRBORNE AUXILIARY POWER
 TABLE OF CONTENTS
_________________
 Chapter Section Subject_______ Subject ____ Effectivity
_______ Page ___________
 APU BLEED AIR SYSTEM 49-52-00
 Description and Operation 1 ALL
 General 1
 Duct - Bleed Air 5
 Module - Miscellaneous 5

 Switching
 Regulator - Differential Air 9
 Pressure
 Thermostat - APU Control 6

 (Airplanes without the ETC)
 Valve - Bleed Air 1
 Valve - Proportional Control 6

 (Airplanes with the ETC)
 Valve - Surge Bleed 9
 Operation 9

 DUCT - BLEED AIR 49-52-13
 Removal/Installation 401 ALL
 REGULATOR - DIFFERENTIAL AIR 49-52-21

 PRESSURE
 Servicing 301 ALL
 Removal/Installation 401 ALL
 Adjustment/Test 501 ALL

 SEAL - APU DUCT 49-52-15
 Removal/Installation 401 ALL
 SWITCH - OVERTEMPERATURE CONTROL 49-52-81

 Maintenance Practices 201 [*]
 General 201
 Deactivation -206

 Overtemperature Control
 Switch

 Installation -203
 Overtemperature Control
 Switch

 Operational Test -205
 Overtemperature Control
 Switch

 Removal - Overtemperature 201
 Control Switch
 [*] AIRPLANES WITH THE OVERTEMPERATURE CONTROL SWITCH

 T-FITTING - COMPRESSOR DISCHARGE 49-52-91
 PRESSURE ORIFICED
 Cleaning/Painting 701 ALL

 49-CONTENTS

 BEJ Page 8 Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
CHAPTER 49 - AIRBORNE AUXILIARY POWER
 TABLE OF CONTENTS
_________________
 Chapter Section Subject_______ Subject ____ Effectivity
_______ Page ___________
 THERMOCOUPLE - APU 49-52-71
 OVERTEMPERATURE
 Removal/Installation 401 [*]
 [*] APU WITH THE APU OVERTEMPERATURE THERMOCOUPLE

 THERMOSTAT - APU CONTROL 49-52-32
 Removal/Installation 401 [*]
 [*] AIRPLANES WITHOUT THE ETC

 Adjustment/Test 501 [*]
 [*] AIRPLANES WITHOUT THE ETC

 VALVE - BLEED AIR 49-52-11
 Removal/Installation 401 ALL
 VALVE - PROPORTIONAL CONTROL 49-52-31
 Removal/Installation 401 [*]
 [*] AIRPLANES WITH ETC

 VALVE - SURGE BLEED 49-52-41
 Removal/Installation 401 ALL
 Adjustment/Test 501 ALL

 VALVE - 3-WAY SOLENOID 49-52-61
 Removal/Installation 401 ALL

 ENGINE CONTROLS 49-60-00
_______________ APU CONTROLS 49-61-00
 Description and Operation 1 ALL
 General 1
 Control - Electronic 7

 Temperature (Airplanes with
 the ETC)

 Sensor - Compressor Inlet 5
 Temperature (Airplanes with
 the ETC)

 Switch - Electronic Speed 5
 Switch - Low Oil Pressure 5
 Switch - Oil Temperature 5
 Switch - Sequencing Oil 5

 Pressure
 Unit - APU Control 1
 Operation 7

 49-CONTENTS

 BEJ Page 9 Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / GTCP85-129 SERIES /737-300/400/500/ ENGINES/MAINTENANCE MANUAL ////////////////////////
CHAPTER 49 - AIRBORNE AUXILIARY POWER
 TABLE OF CONTENTS
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