Chapter 1 INTRODUCTION

TM 10-5410-228-24

CHAPTER 1

INTRODUCTION

TABLE OF CONTENTS

Page

Section I. General Information

1.1

Scope..................................................................................................................

1-3

1.2

Maintenance Forms and Procedures...............................................................

1-3

1.3

Destruction of Equipment to Prevent Enemy Use .........................................

1-3

1.4

Preparation for Storage and Shipment ...........................................................

1-3

1.5

Reporting Equipment Improvement Recommendations (EIR)......................

1-3

1.6

Equipment Hotline ...........................................................................................

1-3

1.7

Safety Care and Handling ...............................................................................

1-4

1.8

Corrosion Prevention and Control (CPC)........................................................

1-5

1.9

Quality Assurance (QA) Procedures................................................................

1-5

1.10

Reference Information......................................................................................

1-5

Section II. Equipment Description and Data

1.11

Equipment Characteristics, Capabilities and Features ................................

1-8

1.12

Location and Description of Major Components ............................................

1-8

1.13

Equipment Data ...............................................................................................

1-22

Section III. Principles of Operation

1.14

General ..............................................................................................................

1-23

1.15

Electrical System ..............................................................................................

1-25

1.15.1

General Information.........................................................................................

1-25

1.15.2

Power Distribution, Internal Power (ECV).....................................................

1-25

1.15.3

Chemical Sensor Circuit ..................................................................................

1-31

1.15.4

Heat Circuit, Internal Power (ECV)................................................................

1-31

1.15.5

Power Distribution, External Power (TQG) ...................................................

1-32

1.15.6

Electric Heater Circuits ...................................................................................

1-32

1.15.7

Regulated 24VDC Using INTERNAL or EXTERNAL Power .......................

1-33

1.15.8

Hydraulic Fluid Level Sensors and Warning Circuitry .................................

1-33

1.15.9

Air and Hydraulic Fluid Temperature Sensing..............................................

1-34

1.15.10

Mission Profile Selection ..................................................................................

1-34

1.15.11

Rib Fan Circuit .................................................................................................

1-35

1.15.12

NBC Operation ................................................................................................

1-35

1.15.13

Cooling...............................................................................................................

1-36

1.15.14

RETURN LINE REPL FILTER Indicator A4DS20 .......................................

1-36

1.15.15

Engine Oil Pressure Low Indicator .................................................................

1-37

1.15.16

Engine Coolant Temperature Indicator ..........................................................

1-37

1.15.17

LTG/INTERCOM Circuit Breaker A4CB4 .....................................................

1-37

1.15.18

DRIVER ALERT and DRIVER ACKNOWLEDGE Buttons..........................

1-37

1.15.19

SHELTER ALERT and SHELTER ACKNOWLEDGE Buttons ...................

1-37

1.15.20

EPG Operation..................................................................................................

1-37

1.16

Hydraulic System .............................................................................................

1-37

1.16.1

General ..............................................................................................................

1-37

1.16.2

Static Mode, Internal Power, Vent Mode, Full NBC......................................

1-41

1.16.3

Static Mode, Internal Power, Vent Mode, NBC Off .......................................

1-42

1-1