Maintenance manual for sunray hfc4da1-2c china-IV diesel engines
Contents Chapter I Technical Characteristics of Engine .......................................................................................................... 11 Section I Technical Requirements for Fuel, Oils, and Auxiliary Materials ..................................................... 11 Section II Main Technical Specification of Engine ............................................................................................ 14 Section III Performance Curve of Engine .......................................................................................................... 15 Section IV Main Checking and Adjustment Parameters .................................................................................. 16 Section V Tightening Torque for Critical Bolts of Engine ................................................................................. 17 Section VI Main Fitting Clearances and Allowable Wear Limits of Engine ................................................... 21 Section VII Specification of Main Attachments and Accessories...................................................................... 24 Chapter II Maintenance for Main Structures of Engine ........................................................................................... 25 Section I Disassembly of Engine Assembly ......................................................................................................... 25 Section II Assembly of Engine ............................................................................................................................. 43 Section III Crankshaft and Flywheel System ..................................................................................................... 68 Section IV Piston and Connecting Rod Group ................................................................................................... 69 Section V Valve Distribution Mechanism ........................................................................................................... 70 Section VI Lubrication System ............................................................................................................................ 71 Section VII Cooling System ................................................................................................................................. 72 Section VIII Turbocharger and Inter-Cooler System ........................................................................................ 73 Section IX EGR System........................................................................................................................................ 75 Section X Exhaust System .................................................................................................................................... 76 Chapter III Working Principle of Engine Control and Actuator Units ................................................................... 77 Section I Overview of Diesel Common Rail System .......................................................................................... 77 Section II Working Principle of Low Pressure Fuel Line System .................................................................... 79 Section III Working Theory of High Pressure Fuel Line .................................................................................. 82 Section IV Electronic Control Unit of High Pressure Common Rail System .................................................. 84 Chapter IV Engine Diagnosis .................................................................................................................................... 109 Section I. Precautions ......................................................................................................................................... 109 Section II. Maintenance Procedures ................................................................................................................. 111 Section III. Fault Diagnosis ................................................................................................................................ 113 Section IV. DTC List ........................................................................................................................................... 115 Section V. Fault Diagnosis for Electronic-Controlled Common Rail Diesel Engines .................................... 133
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