🏷️ Basic Information Identification Make: Komatsu Model: HD325-6 / HD405-6 Vehicle Type: Articulated Dump Truck Applicable Serial Numbers: HD325-6: 6370 and up; HD405-6: 2178 and up Codes Product Name: Komatsu HD325-6 HD405-6 Dump Truck Operation & Maintenance Manual 👋 Introduction Market Position Market Segment: Heavy-duty construction and mining equipment, specifically articulated dump trucks designed for off-highway use. Competitive Analysis Competitors: Caterpillar (e.g., 730C, 735C), Volvo CE (e.g., A35F, A40F), John Deere (e.g., 370E), Bell Equipment. Key Features Vehicle Purpose: Transporting bulk materials (earth, rock, ore) in demanding off-highway construction, mining, and quarrying environments. Known for durability and payload capacity. 📋 Manual Details Coverage Areas Manual Coverage: Operation, Handling, Lubrication, Maintenance, Troubleshooting, Specifications Page Count Estimated Page Count: Comprehensive (Exact number not specified, but described as COMPLETE) Manual Type Manual Type: Operation & Maintenance Manual Manual Scope: Comprehensive; designed for both operators to understand safe and efficient use, and maintenance personnel for routine servicing and basic repairs. Language Language: English (Assumed based on product description typical for global markets) Format Format: Digital (Likely PDF, common for after-market sales of such manuals) Searchability: PDF format allows for full-text searching of keywords, greatly enhancing usability for finding specific information. 📖 Manual Coverage Systems Covered Powertrain: Engine operation, cooling system, fuel system, exhaust system, transmission (automatic/powershift), torque converter, drive shafts, differentials, final drives. Hydraulics: Hydraulic system operation, steering, hoist control, braking system, hydraulic pump, control valves, cylinders, hydraulic fluid specifications. Electrical: Starting system, charging system, lighting, instrumentation, warning lights, sensors, electrical schematics (likely included). Chassis And Body: Frame, suspension (front and rear), steering system, braking system (service, parking, retarder), wheels, tires, dump body operation, cab features, lubrication points. Procedures Included Operation: Pre-operation checks, starting and stopping procedures, vehicle control, safe operation guidelines, load handling, operation in various conditions. Maintenance: Routine maintenance checks, scheduled service intervals, lubrication schedule, filter replacement (oil, fuel, hydraulic, air), fluid level checks and replenishment. Troubleshooting: Diagnostic procedures for common issues, troubleshooting charts, error code interpretation (if applicable), problem identification and resolution steps. Lubrication: Detailed lubrication points, types of lubricants and greases, recommended lubricant specifications, lubrication intervals. Technical Depth Depth Level: Comprehensive, covering operator-level tasks through to basic mechanical and system troubleshooting. Likely includes component identification and some adjustment procedures. Diagnostic Capabilities: Includes guidance for diagnosing common operational faults and system malfunctions. May include reference to diagnostic tool usage (e.g., for electronic systems). 📊 Manual Specifications File Format Digital Format: PDF (Portable Document Format) - Standard for digital manuals, offering searchability and easy viewing. Print Quality Print Readability: High resolution for clear text and diagrams, suitable for printing. Binding Type Binding Type: N/A (Digital format) Paper Type Paper Type: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Engine Model: Komatsu SAA6D125E-5 (Common for these models, specific engine may vary slightly by exact build) Performance Gross Horsepower Hd325-6: Approximately 330 HP (246 kW) @ 2000 rpm (Typical for the -6 generation) Gross Horsepower Hd405-6: Approximately 400 HP (298 kW) @ 2000 rpm (Typical for the -6 generation) Net Horsepower Hd325-6: Approximately 322 HP (237 kW) @ 2000 rpm (Subject to SAE J1349 correction) Net Horsepower Hd405-6: Approximately 390 HP (291 kW) @ 2000 rpm (Subject to SAE J1349 correction) Peak Torque: Varies by engine model, typically in the range of 1100-1400 lb-ft (1491-1898 Nm) for HD325-6 and higher for HD405-6. Fuel System Fuel Type: Diesel Injection System: Common Rail Electronic Fuel Injection (HPCR) Emissions Compliance Emissions Standard: Likely Tier 3/Stage IIIA or equivalent depending on market of original sale. (The -6 generation predates newer emission standards). 🔧 Transmission Standard Transmission Type: Komatsu Automatic Transmission (Powershift) Number Of Gears: Typically 5 forward and 4 reverse speeds (or similar configurations). Features Transmission Control: Electronically controlled with automatic shifting and selection, plus manual override. Torque Converter: Lock-up type for improved fuel efficiency at higher speeds. 📐 Dimensions Exterior Overall Length: HD325-6: ~9.7 m (31.8 ft); HD405-6: ~10.4 m (34.1 ft) (Approximate) Overall Width: HD325-6: ~3.2 m (10.5 ft); HD405-6: ~3.3 m (10.8 ft) (Approximate) Overall Height: HD325-6: ~3.4 m (11.2 ft); HD405-6: ~3.5 m (11.5 ft) (Approximate, to top of cab) Cargo Payload Capacity Hd325-6: Approximately 32,000 kg (70,500 lb) / 20 m³ (26.2 yd³) Payload Capacity Hd405-6: Approximately 40,000 kg (88,200 lb) / 24 m³ (31.4 yd³) Weights Operating Weight Hd325-6: Approximately 23,000 - 24,000 kg (50,700 - 52,900 lb) Operating Weight Hd405-6: Approximately 29,000 - 30,000 kg (63,900 - 66,100 lb) Front Axle Load: Specified for proper weight distribution, detailed in manual. Rear Axle Load: Specified for proper weight distribution, detailed in manual. 🛡️ Safety Features Ratings Safety Certification: CE marking likely if sold in Europe. Specific safety standards compliance detailed in operator's manual section. Active Features Braking System: Full hydraulic, dual-circuit, oil-immersed disc brakes on all wheels. Includes parking brake and retarder function. Suspension System: Hydro-pneumatic suspension for improved ride quality and...