Maintenance manual for sunray hfc4da1-2c china-IV diesel engines
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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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