BOEING 737
MAINTENANCE MANUAL

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D6-37115

CHAPTER 77
ENGINE INDICATING
TABLE OF CONTENTS
Subject Subject No.
ENGINE INDICATING.................................................................................................... Description
POWER
ENGINE PRESSURE RATIO INDICATING SYSTEM................................................ 77-11-0

Description and Operation
Engine Pressure Ratio Indicator
Engine Pressure Ratio Transmitter
Exhaust Pressure Sensing Probe
Inlet Pressure Sensing Probe

Trouble Shooting
Adjustment/Test
Inlet Pressure Sensing Probe .................................................................................. 77-11-11 Removal/Installation
Engine Pressure Ratio Transmitter.......................................................................... 77-11-21 Removal/Installation
Engine Exhaust Pressure Probe and Manifold........................................................ 77-11-31 Inspection/Check
ENGINE TACHOMETER SYSTEM ............................................................................ 77-12-0

Description and Operation
Engine Tachometer Generator
Engine Tachometer Indicator

Trouble Shooting
Adjustment/Test
Engine Tachometer Generator ................................................................................ 77-12-11 Removal/Installation Subject Subject No.
505 
Nov 15/67  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  Contents 77 Page 1 

TEMPERATURE
EXHAUST GAS TEMPERATURE INDICATING SYSTEM (MILLIVOLT) .................. *[1] 77-21-0

Description and Operation
Exhaust Gas Temperature Indicator
Exhaust Gas Temperature Thermocouple Balancing Resistor
Exhaust Gas Temperature Thermocouple Harness and Lead
Exhaust Gas Temperature Thermocouple Probe

Trouble Shooting
Adjustment/Test
Inspection/Check

EXHAUST GAS TEMPERATURE INDICATING SYSTEM (SERVOED) ................... *[2] 77-21-01

Description and Operation
Exhaust Gas Temperature Indicator
Exhaust Gas Temperature Thermocouple Harness and Lead
Exhaust Gas Temperature Thermocouple Probe

Trouble Shooting
Adjustment/Test
Inspection/Check

Exhaust Gas Temperature Thermocouple Balancing Resistor ............................... *[1] 77-21-11 Adjustment/Test
　
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