A 737-300/400/500MAINTENANCE MANUAL

 R = REVISED, A = ADDED OR D = DELETED CHAPTER 36 F = FOLDOUT PAGE EFFECTIVE PAGES 17 PAGE 3 JUL 12/02 LAST PAGE

D6-37537
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 CHAPTER 36 - PNEUMATIC
 TABLE OF CONTENTS
_________________
 Chapter Section
 Subject_______ Subject_______ Page
PNEUMATIC 36-00-00
_________ PNEUMATIC SYSTEM 36-05-00 Description and Operation 1 Maintenance Practices 201 (Pressurize/Depressurize Pneumatic System)
 DISTRIBUTION 36-10-00
____________ ENGINE BLEED AIR DISTRIBUTION 36-11-05 SYSTEM Description and Operation 1 General 1 APU Bleed Air (Shutoff) Valve 16 APU Check Valve 16 APU Pressure Relief Valve 16 Bleed Air Isolation Valve 16 Bleed Air Regulator 8 Dual Bleed Light 18 High Stage Regulator 13 High Stage Valve 11 Pneumatic Ground Service 14 Connection Pneumatic Manifold 5 Pressure Regulator and Shutoff 8 Valve 450°F Thermostat 11 5th-Stage Bleed Air Check 7 Valve Operation 18
Effectivity
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 36-CONTENTS

 BEJ Page 1 Nov 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 CHAPTER 36 - PNEUMATIC TABLE OF CONTENTS
_________________ Chapter
 Section
 Subject_______  Subject_______  Page____ 
Trouble Shooting Duct Pressure vs N1 at Sea  101 106
 Level and 10000, 22000,37000
 Feet (Fig. 102). Duct Pressure vs N1 at Sea  105
 Level and 5000 Feet (Fig. 102). Engine Bleed Air Distribution System - Component Location (Fig. 101). High Duct Pressure. The Engine Was the Bleed Source (Fig. 105). Low Duct Pressure. The Engine Was the Bleed Source (Fig. 104). Split Duct Pressure. The Engine Was the Bleed Source (Fig. 109). The Bleed Valve Will Not Close  103129115147141
 When the Bleed Switches Are
 Turned OFF. The Engine Was the Bleed Source (Fig. 107). The BLEED TRIP OFF Light Was On. The Engine Was the Bleed Source (Fig. 103). The Isolation Valve Does Not  107144
 Open or Close Properly (Fig. 108). Zero Duct Pressure. The Engine Was the Bleed Source (Fig. 106). 134

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 36-CONTENTS

 BEJ Page 2 Nov 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 CHAPTER 36 - PNEUMATIC
 TABLE OF CONTENTS
_________________
 Chapter Section Subject_______ Subject ____ Effectivity
_______ Page ___________
 Adjustment/Test 501 ALL Bleed Air Control System -516 System Test Bleed Air Control System 514 Operational Test - APU Bleed Air Control System 511 Operational Test - Engine Bleed Air Isolation Valve 508 Operational Test
 Bleed Air Regulator and Bleed 501
 Air Overheat Switch
 Functional Test

 Pneumatic System Duct Leakage 526
 Test
 Reverse Flow Check Protection 520

 -Operational Test Wing-to-Body Overheat 510 Operational Test CONNECTOR - GROUND AIR 36-11-45 Removal/Installation 401 ALL ENGINE BLEED AIR DISTRIBUTION 36-11-05 SYSTEM Inspection/Check 601 ALL
 REGULATOR - BLEED AIR 36-11-16 Removal/Installation 401 ALL Adjustment/Test 501 ALL
 REGULATOR - HIGH STAGE 36-11-86 Removal/Installation 401 ALL SWITCH - ENGINE BLEED OVERHEAT 36-11-71 Removal/Installation 401 ALL VALVE - APU CHECK 36-11-51 Removal/Installation 401 ALL VALVE - APU PRESSURE RELIEF 36-11-61 Removal/Installation 401 ALL VALVE - BLEED AIR ISOLATION 36-11-25 Removal/Installation 401 ALL
 VALVE - HIGH STAGE 36-11-85 Removal/Installation 401 ALL Adjustment/Test 501 ALL
 VALVE - PRESSURE REGULATING AND  36-11-15 SHUTOFF Removal/Installation 401 ALL

 36-CONTENTS

 BEJ Page 3 Mar 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 CHAPTER 36 - PNEUMATIC
 TABLE OF CONTENTS
_________________
 Chapter Section Subject_______ Subject ____ Effectivity
_______ Page ___________
 VALVE - 5TH-STAGE BLEED AIR 36-11-35
 CHECK
 Removal/Installation 401 ALL
 BLEED AIR PRECOOLER SYSTEM 36-12-05

 Description and Operation 1 ALL General 1 Precooler 1 Precooler Control Valve 1 Precooler Control Valve Sensor 4 Solenoid Valve 4 Operation 4
 PRECOOLER - BLEED AIR 36-12-25 Removal/Installation 401 ALL Approved Repairs 801 ALL
 SENSOR - PRECOOLER CONTROL VALVE 36-12-45 Removal/Installation 401 ALL SYSTEM AND PRECOOLER - BLEED AIR 36-12-25 DISTRIBUTION Adjustment/Test 501 ALL THERMOSTAT - 450°F 36-12-55 Removal/Installation 401 ALL
　
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