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CFM56 ENGINES 737-300/400/500/ /MAINTENANCE MANUAL //////////////////////// CHAPTER 74 - IGNITION ?TABLE OF CONTENTS _________________ ?Chapter Section Subject_______ Subject ____ Effectivity _______ Page ___________ ?IGNITION 74-00-00 ________ Description and Operation 1 ALL Trouble Shooting 101 ALL Adjustment/Test 501 ALL ?ELECTRICAL POWER SUPPLY 74-10-00 _______________________ ?IGNITION POWER SUPPLY 74-11-00 ?Description and Operation 1 ALL ?EXCITER - IGNITION 74-11-01
?Removal/Installation 401 ALL ?Inspection/Check 601 ALL
?DISTRIBUTION 74-20-00 ____________ HIGH TENSION DISTRIBUTION 74-21-00 Description and Operation 1 ALL General 1 ?IGNITER - SPARK 74-21-02 Removal/Installation 401 ALL Inspection/Check 601 ALL ?LEAD - IGNITION 74-21-01 Removal/Installation 401 ALL Inspection/Check 601 ALL Approved Repairs 801 [*] ?[*] TYPE 3 AND TYPE 4 IGNITION LEAD ?SWITCHING 74-30-00 _________ ENGINE IGNITION CONTROL 74-31-00 ?Description and Operation 1 ALL General 1 Start Lever Actuated Switches 1 Operation 1 ?SWITCHES - ENGINE START AND 74-31-12 IGNITER SELECT Adjustment/Test 501 ALL ?74-CONTENTS
?CBEJ Page 1 Jul 12/01 BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. ////////////////////////A / / CFM56 ENGINES 737-300/400/500/ /MAINTENANCE MANUAL //////////////////////// IGNITION - DESCRIPTION AND OPERATION ____________________________________ ?1. ?General _______ ?A. ?The ignition system (Fig. 1) consists of an engine start switch, engine igniter selector switch, 2 high energy ignition exciters or 2 low energy ignition exciters, 2 spark igniters and 2 coaxial shielded ignition leads. ?B. ?The purpose of the system is to produce an electrical spark to ignite the fuel and air mixture in the engine combustion chamber during the start cycle and to provide continuous ignition during takeoff, landing and operation in adverse weather conditions. ?C. ?The left, right or the two spark igniters can be selected during the start cycle or for continuous ignition operation. ?D. ?The ignition system consists of the Ignition Power Supply, 74-11-00; High Tension Distribution, 74-21-00; and Engine Ignition Control, 74-31-00. ?EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú ?74-00-00 ?ALL ?ú ú C01 Page 1 ú Nov 15/92 BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. ////////////////////////A / / CFM56 ENGINES 737-300/400/500/ /MAINTENANCE MANUAL //////////////////////// IGNITION EXCITERS
UPPER AND LOWER IGNITION EXCITERS SPARK IGNITER LEFT IGNITION LEAD (TO UPPER IGNITION
?EXCITER) 3 O'CLOCK STRUT SEE A RIGHT IGNITION LEAD (TO LOWER IGNITION ?EXCITER) IGNITION LEAD CONNECTORS G-M56-MM-0173(1)-00B VIEW IN THE FORWARD DIRECTION ENGINE START OFF BOTH OFF GRD CONT ?GRD CONT FLT FLT IGNIGN L R 1?2 FLIGHT COMPARTMENT A
Ignition System Component Location Figure 1
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú ?74-00-00 ?ALL ?ú ú C01 Page 2 ú Nov 15/92 BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. ////////////////////////A / / CFM56 ENGINES 737-300/400/500/ /MAINTENANCE MANUAL //////////////////////// ENGINE IGNITION - TROUBLE SHOOTING __________________________________ ?1. Trouble Shoot the Engine Ignition System ________________________________________ ?A. Procedure ?(1) ?To trouble-shoot the Engine Ignition system, refer to the trouble-shooting diagrams in Chapter 71 (AMM 71-00-40/101). ?EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú ?74-00-00 ?ALL ?ú ú C01 Page 101 ú Jul 12/01 BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. www.aero.cn 航空翻譯 www.aviation.cn 本文鏈接地址：737-300 400 500 AMM 飛機維護手冊 點火 IGNITION
