JAC Truck HFC4DA1-2C china-IV diesel engines Maintenance Manual – PDF DOWNLOAD

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JAC Truck HFC4DA1-2C china-IV diesel engines Maintenance Manual – PDF DOWNLOAD

FILE DETAILS:

JAC Truck HFC4DA1-2C china-IV diesel engines Maintenance Manual – PDF DOWNLOAD

Language :English
Pages :801
Downloadable : Yes
File Type : PDF

IMAGES PREVIEW OF THE MANUAL:

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JAC Truck HFC4DA1-2C china-IV diesel engines Maintenance Manual – PDF DOWNLOAD

Chapter I Technical Characteristics of Engine
Section I Technical Requirements for Fuel, Oils, and Auxiliary Materials

I. Diesel
HFC4DA1-2C diesel engine adopts electronically controlled, high pressure common rail, fuel injection system and
conforms to Euro-IV emission regulation and thus extends higher requirements over the fuel. To guarantee the
reliability of the fuel supply system, make sure to use the qualified clean diesel produced by national well-established
fuel company, in order to prevent the blockage or early wear of fuel injector due to poor fuel.

The diesel filter embodies the fuel-water separation function:
The water content in the diesel will bring about great harm to the fuel system. Upon the detection that the diesel filter
water level warning lamp on the instrument panel lights up, it indicates the presence of waste water in the diesel filter.
The waste water shall be drained timely, or it will lead to the rusting and wear of high pressure fuel pump, high
pressure fuel rail, and fuel injector and bring about unnecessary losses.
Procedure for water drainage:
1. Unplug the water level sensor connector;
2. Loosen the water level sensor to drain the waste water, till the diesel flows o

TABLE OF CONTENTS:

JAC Truck HFC4DA1-2C china-IV diesel engines Maintenance Manual – PDF DOWNLOAD

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

S.M 24/2/2025