International VT 275 V6 Diesel Engine Service & Technical Manual PDF (EN)

FORWARD This publication is intended to provide technicians and service personnel with an overview of technical features of the International ® VT 275 Diesel Engine. The information contained in this publication will supplement information contained in available service literature. Consult the latest SERVICE and DIAGNOSTIC manuals before conducting any service or repairs. Safety Information This manual provides general and specific service procedures and repair methods essential for reliable engine operation and your safety. Since many variations in procedures, tools, and service parts are involved, advice for all possible safety conditions and hazards cannot be stated.

Batteries • Batteries produce highly flammable gas during and after charging. • Always disconnect the main negative battery cable first. Departure from instructions in this manual or disregard of warnings and cautions can lead to injury, death, or both, and damage to the engine or vehicle. • Always connect the main negative battery cable last. • Avoid leaning over batteries. Read safety instructions below before doing service and test procedures in this manual for the engine or vehicle. See related application manuals for more information. • Protect your eyes. • Do not expose batteries to open flames or sparks. • Do not smoke in workplace.

Safety Instructions Compressed Air • Limit shop air pressure for blow gun to 207 kPa (30psi). Vehicle • Make sure the vehicle is in neutral, the parking brake is set, and the wheels are blocked before doing any work or diagnostic procedures on the engine or vehicle. • Use approved equipment. • Do not direct air at body or clothing. Work Area • Keep area clean, dry and organized. • Wear safety glasses or goggles. • Wear hearing protection. • Keep tools and parts off the floor. • Use shielding to protect others in the work area. • Make sure the work area is ventilated and well lit. Tools • Make sure all tools are in good condition. • Make sure a First Aid Kit is available.

Safety Equipment • Use correct lifting devices. • Make sure all standard electrical tools are grounded. • Use safety blocks and stands. • Check for frayed power cords before using power tools. Protective Measures • Wear protective glasses and safety shoes (do not work in bare feet, sandals, or sneakers). Fluids Under Pressure • Use extreme caution when working on systems under pressure. • Wear appropriate hearing protection. • Follow approved procedures only. • Wear correct clothing. Fuel • Do not over fill fuel tank. Over fill creates a fire hazard. • Do not wear rings, watches, or other jewelry. • Do not smoke in the work area. • Restrain long hair.

• Do not refuel the tank when the engine is running. Fire prevention • Make sure charged fire extinguishers are in the work area. Removal of Tools, Parts, and Equipment • Reinstall all safety guards, shields and covers after servicing the engine. NOTE: Check the classification of each fire extinguisher to ensure that the following fire types can be extinguished. 1. Type A - Wood, paper, textiles, and rubbish 2. Type B - Flammable liquids 3. Type C - Electrical equipment • Make sure all tools, parts, and service equipment are removed from the engine and vehicle after all work is done. 2 International ® VT 275 V6 Engine

Стр. 2

TABLE OF CONTENTS OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 COMPONENT LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 DESIGN FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 ELECTRONIC CONTROL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 AIR MANAGEMENT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 FUEL SUPPLY SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48 FUEL MANAGEMENT SYSTEM . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . .52 INJECTOR OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 LUBRICATION SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 COOLING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68 UNIQUE REPAIR PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72 SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86 DIAGNOSTIC PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90 DIAGNOSTIC TROUBLE CODES . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . .100 ENGINE & CHASSIS SCHEMATIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102 POWER DISTRIBUTION CENTER FUSES . . . . . . . . . . . . . . . . . . . . . . . . . . .104 GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106 INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108 3 International ® VT 275 V6 Engine

Стр. 3

4

Стр. 4

DIRECT INJECTION TURBOCHARGED DIESEL ENGINE VT 275 FEATURES • 90° V6 • Offset Crankpins • Rear Gear Train • Primary Balancer • Regulated Two-Stage Turbocharging System • Four Valves per Cylinder • Cooled Exhaust Gas Recirculation • Electro-Hydraulic Generation 2 Fuel Injection System • Top Mounted Oil and Fuel Filters 5 International ® VT 275 V6 Engine

Стр. 5