ARMY TM 9-2815-257-24 AIR FORCE TO 38G1-128-2 MARINE CORPS TM 10155A/2815-24/3 1-2 Section I.  GENERAL INFORMATION 1-1.   SCOPE. 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 Engine Assembly. 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. a. 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. b. 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. c. 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.