🏷️ Basic Information Identification Make: Komatsu Model: HD325-7 / HD405-7 Product Type: Workshop Service Repair Manual Codes Machine Serial Numbers Hd325-7: 7001-7025, 7101 and up Machine Serial Numbers Hd405-7: 3001-3035, 7101 and up 👋 Introduction Market Position Market Segment: Heavy-duty off-highway mining and construction dump trucks Competitive Analysis Competitors: Caterpillar (e.g., 730C), Volvo (e.g., A30G), John Deere, Bell Equipment Key Features Hd325-7 Overview: Articulated dump truck known for its robust design, powerful engine, and excellent maneuverability in challenging terrains. Hd405-7 Overview: Rigid frame dump truck designed for high payload capacity and efficiency in large-scale mining and quarrying operations. 📋 Manual Details Coverage Areas Primary Coverage: Komatsu HD325-7 and HD405-7 Dump Trucks Page Count Estimated Page Count: Extensive (Specific count not provided, typical for workshop manuals is 1000+ pages) Manual Type Type: Workshop Service Repair Manual Language Language: English (Assumed, standard for such manuals) Format Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: Engine, transmission, drivetrain, axles, differentials, final drives Hydraulic System: Steering, hoist, braking, implement hydraulics Electrical System: Starting and charging, lighting, instrumentation, sensors, ECUs, wiring diagrams Chassis And Suspension: Frame, steering system, braking system, suspension components Operator Station: Cab structure, controls, seating, climate control (if applicable) Body And Components: Dump body, guards, fenders, ladders, access points Procedures Included Maintenance: Routine inspection, lubrication, fluid changes, filter replacements Diagnostics: Troubleshooting guides, fault code interpretation, diagnostic procedures for all systems Repair: Component removal, disassembly, inspection, repair, assembly, and installation Overhaul: Engine overhaul, transmission overhaul, hydraulic cylinder rebuilding Adjustment: Brake adjustments, clutch adjustments, steering system adjustments Calibration: Electronic control unit (ECU) calibration, sensor calibration Technical Depth Depth: Comprehensive, covering from basic preventative maintenance to complete unit overhauls and complex troubleshooting Diagnostic Tools: References for specific diagnostic tools and software (e.g., Komatsu Service Tools) 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable PDF for efficient information retrieval Print Quality Quality: High-resolution, suitable for printing detailed diagrams and text Binding Type Binding: Not Applicable (Digital PDF download) Paper Type Paper: Not Applicable (Digital PDF download) ⚙️ Engine Specifications Primary Engine Hd325-7 Engine Model: Komatsu SAA6D125E-3 (or similar in series) Engine Type: Turbocharged, Intercooled, Direct Injection, Diesel Displacement Hd325-7: 11.04 L (Approximate) Gross Power Hd325-7: 234 kW / 314 HP @ 2000 RPM (Approximate, refer to specific serial number range) Peak Torque Hd325-7: 1250 Nm / 922 lb-ft @ 1400 RPM (Approximate) Primary Engine Hd405-7 Engine Model: Komatsu SAA6D140E-3 (or similar in series) Engine Type: Turbocharged, Intercooled, Direct Injection, Diesel Displacement Hd405-7: 15.24 L (Approximate) Gross Power Hd405-7: 310 kW / 416 HP @ 2000 RPM (Approximate, refer to specific serial number range) Peak Torque Hd405-7: 1900 Nm / 1401 lb-ft @ 1400 RPM (Approximate) Fuel System Fuel Type: Diesel Fuel Emission Standards: Tier III / EU Stage IIIa (or equivalent for applicable markets) 🔧 Transmission Standard Transmission Type: Komatsu Automatic Transmission (Planetary Gear Type) Number Of Speeds: Typically 6 Forward, 1 Reverse (specific model dependent) Features Transmission Control: Electronic control for optimized shifting and fuel economy Fluid Specification Fluid Type: Komatsu Genuine Transmission Oil, or equivalent API GL-4 specification oil (refer to manual for exact spec) 📐 Dimensions Exterior Hd325-7 Overall Length: Approx. 9.8 - 10.2 m Overall Width: Approx. 3.0 - 3.2 m Overall Height: Approx. 3.4 - 3.5 m Weights Hd325-7 Operating Weight: Approx. 22,000 - 24,000 kg Payload Capacity: Approx. 21,000 - 23,000 kg Exterior Hd405-7 Overall Length: Approx. 10.5 - 10.8 m Overall Width: Approx. 3.4 - 3.6 m Overall Height: Approx. 3.6 - 3.7 m Weights Hd405-7 Operating Weight: Approx. 31,000 - 33,000 kg Payload Capacity: Approx. 36,000 - 40,000 kg Cargo Dump Body Volume Hd325-7: Approx. 14.1 - 15.3 m³ (Heaped) Dump Body Volume Hd405-7: Approx. 22.2 - 23.6 m³ (Heaped) 🛡️ Safety Features Ratings Safety Certification: ROPS (Roll-Over Protective Structure) and FOPS (Falling Object Protective Structure) certified cab as standard. Active Features Braking System: Full hydraulic, wet multi-disc brakes on all wheels, secondary braking, parking brake. Retarder: Hydro-mechanical retarder for controlled downhill speed. Passive Features Operator Station: Ergonomically designed cab with excellent visibility, safety glass. Lighting: Comprehensive work lights and road lights for operation in all conditions. 💡 Technology Features Infotainment Infotainment Features: Basic operator interface, instrumentation for machine vitals. Advanced infotainment systems are not typical for this class of heavy equipment. Driver Assistance Telematics: Likely equipped with Komatsu's KOMTRAX® telematics system for remote monitoring of machine health, location, and operation data. Electronic Controls: Advanced electronic control units (ECUs) manage engine performance, transmission shifting, and hydraulic functions for optimal efficiency and safety. Connectivity Diagnostic Ports: Standardized diagnostic connectors for connection of service computers and data logging. 🔧 Maintenance Service Intervals Engine Oil Change: Typically every 250-500 operating hours (refer to manual for exact interval based on duty cycle and oil analysis) Hydraulic Oil Change: Typically every 1000-2000 operating hours (refer to manual) Fuel Filter...