🏷️ Basic Information Identification Make: Mack Model: AC-300 / AC-400 Series Engine Family: ASET (Advanced Structure Engine Technology) Engine Type: Diesel Emission Control: EGR (Exhaust Gas Recirculation) Codes Engine Code Prefix: AC 👋 Introduction Market Position Market Position: Mack's ASET engine series represented a significant advancement in their heavy-duty diesel engine technology, focusing on improved efficiency, emissions control, and reliability for vocational and on-highway applications. Competitive Analysis Competitive Analysis: The ASET platform competed with other major heavy-duty diesel engine manufacturers, offering advanced features like electronic unit pumps and EGR for emissions compliance, positioning Mack as a competitive player in the market. Key Features Key Features: Advanced electronics, EGR for emissions, VTG turbocharging for optimized performance across the operating range, robust construction for heavy-duty use. 📋 Manual Details Coverage Areas Engine Models Covered: 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 Application Types: Covers engines used in various truck chassis (e.g., Mack Vision, Mack CXN, Mack RB/RD/RM series), vocational vehicles, and potentially buses. Page Count Estimated Page Count: Comprehensive (Specific count not provided, typical for workshop manuals of this nature can range from 800-1500+ pages) Manual Type Manual Type: Workshop Service Repair Manual Language Language: English Format Format: PDF (Downloadable) 📖 Manual Coverage Systems Covered Engine Mechanical: Cylinder block reconditioning, crankshaft & flywheel, auxiliary shaft & camshaft, connecting rod and piston, cylinder head overhaul, valve rocker arm shaft, lubrication system, cooling system, fuel system, engine reassembly, engine installation. Engine Electrical Electronic: EECU (Engine Electronic Control Unit) and sensor service, engine speed and position sensors. Emission Control Systems: EGR system service, VTG (Variable Turbine Geometry) turbocharger service. Auxiliary Systems: VTG System (likely referring to turbocharger control), Fuel filter element replacement, Coolant conditioner element replacement, Oil coalescing air filter replacement, Drive belt replacement and tensioning. Procedures Included Maintenance: Routine maintenance, fuel filter element replacement, coolant conditioner element replacement, oil coalescing air filter replacement, drive belt replacement and tensioning. Troubleshooting Diagnostics: Troubleshooting, engine symptom diagnosis, engine brake tests, turbocharger failure and actions, EECU and sensor diagnostics. Repair Overhaul: Engine removal, engine disassembly, cylinder block reconditioning, crankshaft & flywheel bench work, auxiliary shaft & camshaft bench work, connecting rod and piston bench work, cylinder head overhaul, valve rocker arm shaft bench work, engine reassembly, engine installation, in-chassis part/component replacement, electronic unit pump replacement, exhaust valve yoke service, EGR system service, VTG turbocharger service. Setup Calibration: Engine setup and adjustments, engine speed and position sensors calibration, rebuilt engine run-in procedures. Tool Equipment: Covers special tools and equipment required for specific maintenance and repair procedures, ensuring correct execution. Engine Rebuild: Detailed procedures for cylinder block reconditioning, crankshaft and flywheel bench work, connecting rod and piston work, and cylinder head overhaul support complete engine rebuilds. Technical Depth Technical Depth: Comprehensive mechanical and electrical repair, diagnostics, and maintenance. Covers full engine rebuild and component-level servicing. Schematics Diagrams: Includes schematic and routing diagrams for various engine systems, essential for understanding electrical and fluid pathways. Fastener Specifications: Provides fastener identification and torque wrench use guidance, crucial for correct assembly and preventing component damage. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High quality, printable (selected pages or whole manual), illustrated with pictures and diagrams. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Additional Features Additional Features: Detailed exploded views, step-by-step written procedures, searchable text (typical for well-produced PDFs). ⚙️ Engine Specifications Primary Engine Engine Family: Mack ASET (AC-300, AC-400 Series) Engine Design: Heavy-duty inline diesel engine. Bore Stroke: Specific bore and stroke vary by model (e.g., AC-310/330 etc.). Detailed specifications would be found within the manual. Displacement: Varies by model, typically ranging from 9.5L to 12.0L or higher for the AC-300/400 series. Performance Horsepower Range: Typically from approximately 250 HP to over 400 HP depending on the specific engine model and application. Torque Range: High torque output suitable for heavy-duty applications, detailed figures are model-specific and found in the manual. Fuel System Fuel System Type: Electronic Unit Pump (EUP) system, coupled with common rail or similar advanced injection technology. Fuel Type: Diesel Cooling System Cooling System Type: Water-cooled, pressurized system with thermostat control. Lubrication System Lubrication System Type: Pressurized wet sump system with oil pump, filter, and cooler (if equipped). Engine Features Turbocharger Type: Variable Turbine Geometry (VTG) turbocharger for optimized boost pressure across the RPM range. Engine Braking: Includes engine brake tests and operation, a key feature for heavy-duty vehicles. 🔧 Transmission Standard Standard Transmission Type: Typically paired with heavy-duty manual or automated manual transmissions (e.g., Eaton Fuller, Mack's own transmissions) in vocational and highway trucks. Specific pairings are vehicle-dependent. Optional Optional Transmission Type: Various automatic or more advanced automated manual transmissions...