ARMY TM 9-2815-257-24
AIR FORCE TO 38G1-128-2
MARINE CORPS TM 10155A/2815-24/3
Section I. GENERAL INFORMATION
This manual provides instructions on troubleshooting and maintenance of the Diesel Engine Assembly,
Model Number L70AE-DEGFR, NSN 2815-01-465-5993, manufactured by Yanmar Diesel Engine Company,
Ltd. Information is provided on principles of operation, preventive maintenance checks and services,
lubrication, troubleshooting, and maintenance. Refer to Figure 1-1 for full view illustrations of the Diesel
1-2. CONSOLIDATED INDEX OF ARMY PUBLICATIONS AND FORMS.
Refer to the latest issue of DA Pam 25-30 to determine whether there are new additions, changes, or
additional publications pertaining to the equipment.
1-3. MAINTENANCE FORMS, RECORDS, AND REPORTS.
Reports of Maintenance and Unsatisfactory Equipment. Department of the Army forms and
procedures used for equipment maintenance will be those prescribed by DA Pam 738-750, The Army
Maintenance Management System (TAMMS). Air Force personnel will use AFR 66-1 for maintenance
reporting and TO 00-35D54 for unsatisfactory equipment reporting. Marine Corps personnel refer to the on-
line MCPDS Index of Technical Publications. Refer to TM 4700-15/1 for disposition of forms and records
required for Marine Corps equipment.
Reporting of Item and Packaging Discrepancies. Fill out and forward SF 364 (Report of
Discrepancy (ROD)) as prescribed in AR 735-11-2, AFR 400-54, or MCO 4430.3J.
Transportation Discrepancy Report (TDR) (SF 361). Fill out and forward Transportation
Discrepancy Report (TDR) (SF 361) as prescribed in AR 55-38, AFR 75-18, or MCO P4610.19D.
1-4. CORROSION PREVENTION AND CONTROL (CPC).
a. Corrosion Prevention and Control (CPC) of Army materiel is a continuing concern. It is important
that any corrosion problems with the engine assembly be reported so that the problem can be corrected and
improvements can be made to prevent the problem in future engine assemblies.
b. While corrosion is typically associated with rusting of metals, it can also include deterioration of other
materials, such as rubber or plastic. Unusual cracking, softening, swelling, or breaking of these materials may
be a corrosion problem.
c. If a corrosion problem is identified, it can be reported using Standard Form 368, Product Quality
Deficiency Report. Use of keywords such as corrosion, rust, deterioration, or cracking will ensure that
the information is identified as a CPC problem.
d. Submit Form 368 to address specified in DA Pam 738-750. Air Force personnel will use TO 25-1-3.