TM-9-2320-272-23-5
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 5 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-5 - Page 30 of 623
HOW TO USE THIS MANUAL
WARNINGS, CAUTIONS, AND NOTES
Read all WARNINGS, CAUTIONS, and NOTES before performing any procedure.
Warnings, cautions, notes, subject headings, and other essential information is printed in
BOLD
type, making them
easier for the user to see.
GENERAL INFORMATION
This manual is divided into CHAPTERS and WORK PACKAGES. For a specific Chapter or Work Package, refer to
the TABLE OF CONTENTS.
VOLUME 5
•
CHAPTER 10 provides maintenance instructions.
•
CHAPTER 11 provides supporting information. The supporting information includes tables listing
References
used in this manual, an
Introduction to the Standard Two-level MAC
, the
Two-level
MAC
, a listing of
Expendable and Durable Items
, a
Tool Identification
list, and a
Mandatory
Replacement Parts
list.
The illustrations throughout this manual contain numerical callouts pointing to various components mentioned in the
procedural steps. Mandatory replacement parts must be discarded after removal and replaced with a new part, which
is listed in the Materials/Parts section located at the beginning of the task.
Prior to performing any maintenance functions on the 5-ton, 6x6, M939, M939A1, and M939A2 Diesel Truck series,
ALWAYS do the following:
•
Read and follow all WARNINGS in all work packages.
•
Read the Safety Summary.
•
Read the Equipment Description and Data located in Chapter 1.
•
Read completely through the maintenance procedure to familiarize yourself with the procedure and the
affected parts before beginning work.
Troubleshooting section is setup by either how a physical problem is occurring or how an active or stored trouble
code is read from a diagnostic tool. By following a prescribed flow path through making decisions will lead you to a
solution to remedy the problem. RPSTL manual, TM 9-2320-272-24P, is to be used in conjunction with this manual
to help find needed parts for procurement. RPSTL manual lists and authorized spares and repair parts; special tools,
special Test, Measurement, and Diagnostic Equipment (TMDE); and other special support equipment required for
performance of Field Maintenance on the 5-ton, 6x6, M939, M939A1, and M939A2 Diesel Truck series. It authorizes
the requisitioning, issue, and disposition of spares, repair parts, and special tools as indicated by the Source,
Maintenance, and Recoverability (SMR) codes.
METRIC SYSTEM
The equipment described herein contains metric components and requires metric, common, and special tools.
Therefore, metric units and English units will be used throughout this publication. An English-to-Metric conversion
table is included as the last page of this manual inside the back cover.
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