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  TM 5-2410-233-23
NOTE
If at any time you are unsure how to use this manual or you cannot locate the information you need, notify
your supervisor.
INTRODUCTION
1.
A Service Life Extension Program (SLEP) has been implemented on selected D7F Tractors.
2.
The major differences between a non-SLEP and SLEP tractor are as follows:
a.
A non-SLEP tractor is equipped with either a model D333 or early model 3306 engine. These engines use glow
plugs for cold weather starting. In addition, there is no oil sampling valve for engine oil sampling.
b.
A SLEP tractor is equipped with a later model 3306 engine, an ether starting aid system, an engine oil sampling
valve and a protective screen on the ROPS. Some SLEP tractors may be equipped with a transmission oil sampling
valve.
3.
Refer to WP 0002 00, Equipment Description and Data, for further information on how to verify which tractor you have.
4.
This revised manual is designed to help you perform lubrication, troubleshooting and maintenance on both configurations
of D7F Tractors.
5.
This manual is written in work package format.
6.
Chapters divide the manual into major categories of information (e.g., Introductory Information with Theory of Operation,
Troubleshooting Procedures, Field Maintenance Procedures, and Supporting Information).
c.
Each chapter is divided into work packages, which are identified by a 6-digit number (e.g. 0001 00, 0002 00, etc.)
located on the upper right-hand corner of each page. The work package page number (e.g. 0001 00-1, 0001 00-2,
etc.) is located centered at the bottom of each page.
If a Change Package is issued to this manual, added work packages use the 5th and 6th digits of their number to
d.
indicate new material. For instance, work packages inserted between WP 0001 00 and WP 0002 00 are numbered
WP 0001 01, WP 0001 02, etc.
7.
Read through this manual to become familiar with its organization and contents before attempting to operate or maintain
the equipment.
8.
To ensure your safety and proper maintenance of the tractor, pay close attention to Chapter 4, General Maintenance
Instructions.
CONTENTS OF THIS MANUAL
1.
A Warning Summary is located at the beginning of this manual. Become familiar with these warnings before operating or
performing troubleshooting or maintenance on the machine.
2.
A Table of Contents, located in the front of the manual, lists all chapters and work packages in the publication.
a.
The Table of Contents also provides Reporting Errors and Recommending Improvements information and DA
Form 2028 addresses, for the submittal of corrections to this manual.
b.
If you cannot find what you are looking for in the Table of Contents, refer to the alphabetical Index at the back of
the manual.
3.
Chapter 1, Introductory Information with Theory of Information, provides general information on the manual and the
equipment.
4.
Chapter 2 covers Troubleshooting Procedures. WP 0005 00 contains a Troubleshooting Symptom Index. If the machine
malfunctions, this index should always be consulted to locate the appropriate troubleshooting procedure.
5.
Chapter 3 deals with Field Maintenance Procedures: Major areas covered are Service Upon Receipt, Preventive Mainte-
nance Checks and Services (PMCS) and all maintenance procedures authorized by the Maintenance Allocation Chart
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