TM 9-2320-361-20 REPORTING OF ERRORS You can help improve this manual. If you find any mistakes or if you know of a way to improve the procedures, please let us know. Mail your letter, DA Form 2028 (Recom- mended Changes to Publications and Blank Forms), or DA Form 2028-2 located in back of this manual direct to: Commander, U.S. Army Tank-Automotive Command, ATTN: AMSTA-MB, Warren, Michigan 48397-5000. A reply will be furnished to you. CHAPTER 1 Section I. II. III. CHAPTER 2 Section I. II. III. IV. V. VI. VII. CHAPTER 3 Section I II. III. IV. V. VI. VII. VIII. IX. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Equipment Description and Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Principles of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Repair Parts, Special Tools, TMDE, and Support Equipment . . . . . . . . . . . . . . . . . Service Upon Receipt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preventive Maintenance Checks and Services (PMCS) . . . . . . . . . . . . . . . . . . . . . Mechanical Systems Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Compressed Air and Brake System Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . Electrical Systems Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . STE/ICE Troubleshooting (Simplified Test Equipment for Internal Combustion Engines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ENGINE AND CLUTCH SYSTEMS MAINTENANCE . . . . . . . . . . . . . . . . . . Engine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine Lubrication System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clutch System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air Intake System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Turbocharger Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fuel System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accelerator System Maintenance.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Exhaust System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cooling System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page v 1-1 1-1 1-3 1-37 2-1 2-1 2-1 2-2 2-24 2-52 2-74 2-148 3-1 3-1 3-6 3-14 3-20 3-28 3-31 3-70 3-82 3-92 ii