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CHAPTER 77 - ENGINE INDICATING
TABLE OF CONTENTS _________________ Chapter Section Subject_______ Subject ____ Effectivity _______ Page ___________ ENGINE INDICATING 77-00-00 _________________ Description and Operation 1 ALL General 1 Component Location 101 ALL Component Index Component Location
POWER 77-10-00 _____ ENGINE PRESSURE RATIO INDICATING 77-11-00 SYSTEM Description and Operation 1 ALL General 1 Indication - Engine Pressure 1 Ratio Manifold - Engine Pressure 1 Ratio (PT4.95) Probe - Engine Pressure Ratio 1 (PT4.95)
Probe - EEC Total Inlet 1 Pressure/Temperature (PT2/TT2)
Operation 1 Adjustment/Test 501 ALL MANIFOLD - ENGINE PRESSURE RATIO 77-11-02 (PT4.95) Removal/Installation 401 ALL PROBE - ENGINE PRESSURE RATIO 77-11-01 (PT4.95) Removal/Installation 401 ALL Adjustment/Test 501 ALL Inspection/Check 601 ALL 77-CONTENTS NGUN Page 1 Feb 18/02 BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. ////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL //////////////////////// CHAPTER 77 - ENGINE INDICATING
TABLE OF CONTENTS _________________ Chapter Section Subject_______ Subject ____ Effectivity _______ Page ___________ ENGINE TACHOMETER SYSTEM 77-12-00 Description and Operation 1 ALL General 1 Alternator - EEC (N2 1 Transducer) Indication 1 Speed Card - Engine 1 Transducer - EEC Speed (N1) 1 Operation 1
Adjustment/Test 501 ALL CARD - ENGINE SPEED 77-12-01 Removal/Installation 401 ALL TEMPERATURE 77-20-00 ___________ EXHAUST GAS TEMPERATURE INDICATING 77-21-00 SYSTEM Description and Operation 1 ALL General 1 Cable - Thermocouple, EGT 1 (TT4.95) Indication - Exhaust Gas 1 Temperature Probe - Thermocouple, EGT 1 (TT4.95) Terminal Box - EGT (TT4.95) 1 Thermocouple Cable
Operation 5 Adjustment/Test 501 ALL BOX - TERMINAL, THERMOCOUPLE 77-21-04 CABLE, EXHAUST GAS TEMPERATURE (TT4.95) Removal/Installation 401 ALL Inspection/Check 601 ALL Cleaning/Painting 701 ALL CABLE - THERMOCOUPLE, EXHAUST 77-21-02 GAS TEMPERATURE (TT4.95) Removal/Installation 401 ALL Inspection/Check 601 ALL 77-CONTENTS NGUN Page 2 Feb 18/02 BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. CHAPTER 77 - ENGINE INDICATING
TABLE OF CONTENTS _________________ Chapter Section Subject_______ Subject ____ Effectivity _______ Page ___________ Cleaning/Painting 701 ALL HOUSING - THERMOCOUPLE, EXHAUST 77-21-05 GAS TEMPERATURE (TT4.95) Removal/Installation 401 ALL Inspection/Check 601 ALL PROBE - THERMOCOUPLE, EXHAUST 77-21-01 GAS TEMPERATURE (TT4.95) Removal/Installation 401 ALL Inspection/Check 601 ALL Cleaning/Painting 701 ALL ANALYZERS 77-30-00 _________ AIRBORNE VIBRATION MONITORING 77-31-00 (AVM) SYSTEM Description and Operation 1 ALL General 1 Accelerometer - Engine 1 Indication 3 Signal Conditioner - Airborne 3 Vibration Monitoring (AVM) Operation 3 Adjustment/Test 501 ALL Universal Airborne Vibration 503 Monitor (AVM) Signal Conditioner - Self Test
Inspection/Check 601 ALL ACCELEROMETER - ENGINE 77-31-01 Removal/Installation 401 ALL CONDITIONER - SIGNAL, AIRBORNE 77-31-03 VIBRATION MONITOR Removal/Installation 401 ALL 77-CONTENTS NGUN Page 3 Feb 18/02 BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. ENGINE INDICATING - DESCRIPTION AND OPERATION _____________________________________________ 1. General (Fig. 1 and 2) _______ A. The engine indicating system includes these systems: (1) Engine Pressure Ratio (EPR) Indicating System (AMM 77-11-00)
(2) Engine Tachometer System (AMM 77-12-00)
(3) Exhaust Gas Temperature (EGT) Indicating System (AMM 77-21-00)
(4) Airborne Vibration Monitoring (AVM) System (AMM 77-31-00)
B. EPR Indicating System
(1) The engine inlet pressure (PT2) and the exhaust gas pressure (PT4.95) of the engine are sent to the electronic engine control (EEC) where actual EPR is computed and transmitted to the EFIS/EICAS interface units (EIU's) for display on the main EICAS display.
C. www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747-400 AMM 飞机维护手册 发动机指示 ENGINE INDICATING
