CHAPTE 1. INTRODUCTION

TM9-2815-224-34&P

INTRODUCTION

Page

Para

Contents

Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

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Maintenance Forms, Records, and Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

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Destruction of Army Material to Prevent Enemy Use...... . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

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Preparation for Storage or Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

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Nomenclature Cross-Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

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Reporting Equipment Improvement Recommendations (EAR) . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Equipment Improvement Report and Maintenance Digest (EIR MD) and Equipment

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Improvement Report and Maintenance Summary (EIR MS) . . . . . . . . . . . . . . . . . . . . . . . 1-7

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Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

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Metric System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

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Equipment Characteristics, Capabilities, and Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Location and Description of Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

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Equipment Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

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Principles of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

EQUIPMENT AND MAINTENANCE REPORTS

Section 1.

Maintenance Information

11-1. SCOPE. ]The purpose of this chapter is to provide general information, equipment description, and

principles of operation for the M977 series 8V92TA diesel engine.

a. Type of Manual. Direct Support and General Support Maintenance Manual with Repair Partsand

Special Tools List (RPSTL) for the M977 series Heavy Expanded Mobility Tactical Truck (HEMTT) 8V92TA

diesel engine.

b. Model Number and Equipment Name. 8V92TA Diesel Engine.

C. Purpose of Equipnent. The 8V92TA engine powers the M977 series vehicles used bythe U.S.

Army.

d. Manual Content. Thismanual provides Direct Support and General Support Maintenance

instructions for the M977 series 8V92TA engine. These instructions include procedures for disassembly,

cleaning, repair, test, and adjustment as authorized by the Maintenance Allocation Chart. The procedures

covered are beyond the scope of tools, equipment, and supplies normally available to operators and

organizational maintenance personnel.

This manual also includes the Repair Parts and Special Tools List (RPSTL) for the M977 series 8V92TA

engine. Direct Support and General Support Maintenance personnel will request repair parts as necessary

from this RPSTL. The Source, Maintenance , and Recoverability (SMR) codes assigned to each part govern

the requisition and disposition of the part. In addition to repair parts, all special tools used in engine

maintenance are listed. These special tools are all tools required by the maintenance instructions which are

not in U.S. Army supply catalogs for shop equipment and tool sets.

1-2. MAINTENANCE FORMS, RECORDS, AND REPORTS. Department of Army forms and

procedures used for equipment maintenance will be as specified in the latest edition of DA PAM 738-750,

The Army Maintenance Management System (TAMMS),

[ 1-3. DESTRUCTION OF ARMY MATERIAL TO PREVENT ENEMY USE. Command decision,

according to the tactical situation, will determine when the destruction of the M977 series 8V92TA engine

will be accomplished. A destruction plan will be prepared by the using organization unless one has been

prepared by a higher authority. For general destruction procedures for this equipment, refer to

TM 750-244-6, Procedures for Destruction of Tank-Automotive Equipment to Prevent Enemy Use (U.S.

Army Tank-Automotive Command).

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