This manual covers the Mack AC-300 / AC-400 Series heavy-duty diesel engines, part of the ASET (Advanced Structure Engine Technology) family. These engines, produced primarily from the late 1990s through the 2000s, represent Mack's commitment to durable and reliable performance in vocational and on-highway applications. Featuring advanced electronics, EGR for emissions control, and VTG turbocharging, these engines were engineered for efficiency and robust operation. The AC-300 / AC-400 Series engines are inline diesel units, with displacements typically ranging from 9.5L to over 12.0L and horsepower outputs from approximately 250 HP to over 400 HP, designed to meet the demanding requirements of heavy-duty trucks and buses.
This comprehensive Workshop Service Repair Manual provides detailed information for the maintenance, diagnosis, and repair of the Mack ASET AC-300 / AC-400 Series engines. It covers a wide range of systems, including engine mechanical components, electrical and electronic systems, emission control systems, and auxiliary systems. Procedures for routine maintenance, troubleshooting, repair, overhaul, and setup are thoroughly explained. The manual is an essential resource for owners, mechanics, and technicians, offering in-depth guidance with schematics, diagrams, special tool requirements, and fastener specifications to ensure proper service and longevity of the engine.
MACK AC-300 AC-400 EGR ASET DIESEL ENGINE WORKSHOP SERVICE REPAIR MANUAL
APPLICABLE ENGINE MODEL:
ASET AC-310/330 (CEGR) MAXICRUISE
ASET AC-330/350 (CEGR) MAXICRUISE
ASET AC-355/380 (CEGR) MAXICRUISE
ASET AC-380/410 (CEGR) MAXICRUISE
ASET AC-350 (CEGR) ECONODYNE
ASET AC-400 (CEGR) ECONODYNE
ASET AC-427 (CEGR) ECONODYNE
ASET AC-460(E) (CEGR) ECONODYNE
ASET AC-460(P) (CEGR) ECONODYNE
CONTENTS:
INTRODUCTION
VISUAL IDENTIFICATION
DESCRIPTION AND OPERATION
COMPONENT LOCATOR
TROUBLESHOOTING
ENGINE SYMPTOM DIAGNOSIS
ENGINE BRAKE TESTS
MAINTENANCE
FUEL FILTER ELEMENT REPLACEMENT
COOLANT CONDITIONER ELEMENT REPLACEMENT
OIL COALESCING AIR FILTER REPLACEMENT
DRIVE BELT REPLACEMENT AND TENSIONING
ENGINE REMOVAL
ENGINE DISASSEMBLY
CYLINDER BLOCK RECONDITIONING
CRANKSHAFT & FLYWHEEL BENCH
AUXILIARY SHAFT & CAMSHAFT BENCH
CONNECTING ROD AND PISTON BENCH
CYLINDER HEAD OVERHAUL
VALVE ROCKER ARM SHAFT BENCH
LUBRICATION SYSTEM
COOLING SYSTEM
FUEL SYSTEM
VTG SYSTEM
ENGINE REASSEMBLY
ENGINE INSTALLATION
IN-CHASSIS PART/COMPONENT
ELECTRONIC UNIT PUMP REPLACEMENT
EXHAUST VALVE YOKE
EECU AND SENSOR SERVICE
EGR SYSTEM SERVICE
VTG TURBOCHARGER SERVICE
ENGINE SETUP AND ADJUSTMENTS
ENGINE SPEED AND POSITION SENSORS
REBUILT ENGINE RUN-IN PROCEDURES
ENGINE MECHANICAL SPECIFICATIONS
SPECIAL TOOLS & EQUIPMENT
FASTENER IDENTIFICATION
TORQUE WRENCH USE
TURBOCHARGER FAILURE AND ACTIONS
SCHEMATIC & ROUTING DIAGRAMS
This is a very comprehensive manual (DOWNLOAD in PDF format) for MACK AC-300 AC-400 EGR ASET DIESEL ENGINE, Features detailed exploded views. This is the same manual that technicians use to fix your engines. Manual covers detailed and complete step-by-step written procedures with pictures and diagrams, fully printable-selected pages or whole manual, illustrated. So, you will not be disappointed. This is the manual for Repairs, Maintenance & servicing.
MACK AC-300 AC-400 EGR ASET DIESEL ENGINE WORKSHOP SERVICE REPAIR MANUAL
APPLICABLE ENGINE MODEL:
ASET AC-310/330 (CEGR) MAXICRUISE
ASET AC-330/350 (CEGR) MAXICRUISE
ASET AC-355/380 (CEGR) MAXICRUISE
ASET AC-380/410 (CEGR) MAXICRUISE
ASET AC-350 (CEGR) ECONODYNE
ASET AC-400 (CEGR) ECONODYNE
ASET AC-427 (CEGR) ECONODYNE
ASET AC-460(E) (CEGR) ECONODYNE
ASET AC-460(P) (CEGR) ECONODYNE
CONTENTS:
INTRODUCTION
VISUAL IDENTIFICATION
DESCRIPTION AND OPERATION
COMPONENT LOCATOR
TROUBLESHOOTING
ENGINE SYMPTOM DIAGNOSIS
ENGINE BRAKE TESTS
MAINTENANCE
FUEL FILTER ELEMENT REPLACEMENT
COOLANT CONDITIONER ELEMENT REPLACEMENT
OIL COALESCING AIR FILTER REPLACEMENT
DRIVE BELT REPLACEMENT AND TENSIONING
ENGINE REMOVAL
ENGINE DISASSEMBLY
CYLINDER BLOCK RECONDITIONING
CRANKSHAFT & FLYWHEEL BENCH
AUXILIARY SHAFT & CAMSHAFT BENCH
CONNECTING ROD AND PISTON BENCH
CYLINDER HEAD OVERHAUL
VALVE ROCKER ARM SHAFT BENCH
LUBRICATION SYSTEM
COOLING SYSTEM
FUEL SYSTEM
VTG SYSTEM
ENGINE REASSEMBLY
ENGINE INSTALLATION
IN-CHASSIS PART/COMPONENT
ELECTRONIC UNIT PUMP REPLACEMENT
EXHAUST VALVE YOKE
EECU AND SENSOR SERVICE
EGR SYSTEM SERVICE
VTG TURBOCHARGER SERVICE
ENGINE SETUP AND ADJUSTMENTS
ENGINE SPEED AND POSITION SENSORS
REBUILT ENGINE RUN-IN PROCEDURES
ENGINE MECHANICAL SPECIFICATIONS
SPECIAL TOOLS & EQUIPMENT
FASTENER IDENTIFICATION
TORQUE WRENCH USE
TURBOCHARGER FAILURE AND ACTIONS
SCHEMATIC & ROUTING DIAGRAMS
This is a very comprehensive manual (DOWNLOAD in PDF format) for MACK AC-300 AC-400 EGR ASET DIESEL ENGINE, Features detailed exploded views. This is the same manual that technicians use to fix your engines. Manual covers detailed and complete step-by-step written procedures with pictures and diagrams, fully printable-selected pages or whole manual, illustrated. So, you will not be disappointed. This is the manual for Repairs, Maintenance & servicing.
