🏷️ Basic Information Identification Make: Komatsu Model: HD785-7 Vehicle Type: Dump Truck Product Name: Komatsu HD785-7 Dump Truck Full Service Repair Manual PDF Download 👋 Introduction Market Position Segment: Heavy-duty mining and construction dump truck. Application: Designed for demanding off-highway applications, moving large volumes of material in mining, quarrying, and large-scale construction projects. Competitive Analysis Competitors: Caterpillar (e.g., 773 series), Hitachi (e.g., EH3500AC-3), BelAZ (e.g., 7547). Key Features Features: Robust construction, high payload capacity, powerful engine, advanced suspension and braking systems, operator comfort and safety. Manual Utility Value Proposition: Essential resource for owners and technicians to ensure optimal performance, longevity, and safety of the HD785-7. 📋 Manual Details Coverage Areas Manual Type: Full Service Repair Manual Language: English Format: PDF Download Page Count: Extensive (Specific number not provided, but described as 'very detailed') 📖 Manual Coverage Systems Covered Engine: Comprehensive repair, maintenance, and overhaul procedures for the primary engine. Transmission: Detailed information on repair, maintenance, and rebuilding of the transmission system. Drivetrain: Coverage of axles, differentials, and drive shafts for repair and maintenance. Braking System: In-depth procedures for brake system maintenance, repair, and troubleshooting, including hydraulic and air systems. Steering System: Repair and maintenance instructions for the power steering system. Hydraulic System: Extensive coverage of hydraulic systems, including lift, tilt, and steering functions, with troubleshooting and component repair. Electrical System: Detailed wiring diagrams, component testing, and troubleshooting for the vehicle's electrical system. Cooling System: Maintenance and repair procedures for the engine cooling system. Fuel System: Maintenance and repair of the fuel delivery and injection systems. Suspension System: Information on the front and rear suspension components and their servicing. Chassis And Frame: Inspection and repair procedures for the vehicle's main structural components. Bodywork And Cab: Repair and maintenance of the truck body, dump bed, and operator's cab. Procedures Included Maintenance: Regular servicing, lubrication, filter changes, and inspection routines. Troubleshooting: Systematic diagnostic procedures for identifying and resolving common and uncommon issues. Repair: Step-by-step instructions for repairing or replacing individual components and sub-assemblies. Rebuild: Detailed procedures for complete engine, transmission, and hydraulic system rebuilds. Overhaul: Comprehensive instructions for major overhauls of key vehicle systems. Disassembly And Assembly: Detailed instructions for the correct disassembly and reassembly of components. Adjustment And Calibration: Procedures for adjusting and calibrating various vehicle systems for optimal performance. Technical Depth Depth: Complete, from basic maintenance checks to full component rebuilds and diagnostics. 📊 Manual Specifications File Format Format: PDF Quality: High-resolution, clear and legible text and diagrams. Searchability: Likely searchable text within the PDF, enabling quick access to information. Binding Type Type: Digital Download (PDF) Printability: Printable pages for on-site use. ⚙️ Engine Specifications Primary Engine Make: Komatsu Model: Typically Komatsu SAA6D170E-5 or similar Tier III compliant engine (exact specification depends on exact model year and configuration, but this is a common fitment). Configuration: Inline 6-cylinder, turbocharged, aftercooled, diesel. Displacement: Approximately 24.2 liters (1477 cu in). Performance Gross Horsepower: Around 730 HP (545 kW) @ 2000 RPM (subject to specific configuration). Peak Torque: Significant torque output to handle heavy loads, typically in the range of 1500-1600 lb-ft (2034-2170 Nm) or higher (specific value for engine model required). Fuel System Injection Type: High-pressure common rail (HPCR) direct injection. Emissions Compliance Tier: Likely Tier III or equivalent emissions standards, depending on manufacturing region and year. 🔧 Transmission Standard Type: Komatsu Automatic Transmission (e.g., KTSS37A or similar). Configuration: Planetary gear type, electronically controlled. Gears: Typically 6 forward and 1 reverse gear. Features Shift Control: Automatic shift control with manual override capability, optimized for load and grade. Fluid Specifications Fluid Type: Komatsu genuine transmission oil or equivalent API GL-4 or GL-5 rated gear oil (manual will specify exact grade and specification). 📐 Dimensions Exterior Length: Approx. 9.9 meters (32 ft 6 in). Width: Approx. 4.7 meters (15 ft 5 in). Height: Approx. 4.4 meters (14 ft 5 in) to top of cab. Cargo Payload Capacity: Nominal payload capacity of 73 metric tons (80 short tons). Body Volume Heaped: Approximately 47.5 m³ (62.1 cu yd) heaped. Weights Operating Weight: Approx. 50-55 metric tons (110,000-121,000 lbs) (empty). Gross Vehicle Weight: Approx. 123-128 metric tons (271,000-282,000 lbs) (loaded). Tires Standard Tire Size: Typically 27.00 R49 (specific size may vary). 🛡️ Safety Features Ratings Safety Features: ROPS (Roll-Over Protective Structure) cab, advanced braking systems, onboard diagnostics, emergency stop controls. Active Features Braking: Full hydraulic braking system with dual circuits, retarder function, parking brake. Passive Features Cab Protection: Reinforced operator's cab designed for operator protection in case of rollovers or falling objects. Operator Interface Visibility: Designed for excellent all-around visibility from the operator's station. 💡 Technology Features Infotainment Features: Basic operator comfort features, typically not advanced infotainment systems like passenger vehicles. Focus is on operational efficiency and diagnostics. Driver Assistance Features: Onboard diagnostics (Komatsu Machine Health Monitor), reverse camera (optional), payload meter (optional). Telematics Komtrax: Likely equipped with Komtrax...