🏷️ Basic Information Identification Make: Komatsu Model: HD325-7 Product Type: Workshop Service Repair Manual Delivery Method: PDF Download Codes Komatsu Model Code: HD325-7 👋 Introduction Market Position Vehicle Class: Large Off-Highway Rigid Dump Truck Target Application: Heavy-duty mining, quarrying, construction, and infrastructure projects. Competitive Analysis Key Competitors: Caterpillar (e.g., 777 series), Hitachi (e.g., EH3500), Liebherr (e.g., T 284), Volvo CE (e.g., A60H Hauler - though a different category, often compared for payload in certain applications). Key Features Payload Capacity: Approximately 32.5 metric tons (71,650 lbs) Articulation Or Frame: Rigid Frame design Operator Comfort And Visibility: Designed for operator efficiency and safety in demanding environments. 📋 Manual Details Coverage Areas Serial Numbers Covered: 7001-7025, 7101 and up Primary Region Of Operation: Global (Heavy Construction/Mining) Page Count Estimated Page Count: Over 1000 pages (typical for comprehensive factory manuals) Manual Type Manual Type: Full Factory Service and Repair Manual Language Language: English (standard for factory documentation, may contain technical Japanese terms) Format Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine, Transmission, Drive Axles, Differentials, Final Drives Chassis: Suspension (Hydropneumatic), Steering System, Braking System (Wet Multi-disc), Frame Hydraulics: Hoisting System, Steering System Hydraulics, Cooling Fan Hydraulics, Auxiliary Hydraulic Systems Electrical And Electronics: Engine Control Unit (ECU), Transmission Control Unit (TCU), Advanced Monitoring System (KOMTRAX), Lighting, Gauges, Sensors, Wiring Diagrams Operator Station: Cab Components, HVAC System, Seat, Controls, Instrumentation Procedures Included Maintenance: Routine Inspections, Lubrication Schedule, Filter Replacement, Fluid Checks and Changes Troubleshooting: Diagnostic Procedures, Fault Code Interpretation, Symptom-based Troubleshooting Repair And Rebuild: Engine Overhaul, Transmission Rebuild, Hydraulic Component Replacement, Component Disassembly and Assembly Calibration And Adjustment: Sensor Calibration, System Adjustments (e.g., brake adjustments, hydraulic pressure settings) Technical Specifications And Data: Torque Values, Clearances, Fluid Capacities, Pressures, Electrical Specifications Technical Depth Depth: Comprehensive factory-level detail, suitable for certified technicians and advanced DIY mechanics. Covers everything from basic adjustments to complete engine and powertrain overhauls. 📊 Manual Specifications File Format File Format: Searchable PDF (typically, for factory manuals) Print Quality Print Quality: High-resolution scans of original factory documents, ensuring clarity of diagrams, schematics, and text. Binding Type Binding Type: N/A (Digital Download - PDF) Paper Type Paper Type: N/A (Digital Download - PDF) Content Accuracy Accuracy: Official factory documentation, ensuring the highest level of accuracy and adherence to OEM specifications. ⚙️ Engine Specifications Primary Engine Engine Model: Komatsu SAA6D125E-5 (or similar variant depending on exact configuration) Engine Type: Turbocharged and Aftercooled, Direct Injection, Diesel Displacement: 11.04 liters (673.5 cubic inches) Performance Gross Horsepower: Approximately 262 kW (351 HP) @ 2000 rpm (Subject to specific emission standards and market configurations) Net Horsepower: Approximately 248 kW (333 HP) @ 2000 rpm (After fan and accessory drive losses) Peak Torque: Approximately 1300 Nm (959 lb-ft) @ 1400 rpm (Subject to specific configuration) Fuel System Fuel System Type: High-pressure common rail (HPCR) electronic fuel injection Emission Control: Meets Tier 3 / Stage IIIA emission regulations (or equivalent based on market, potential for Tier 4 configurations) Fluid Specifications Engine Oil Type: API CI-4 or CJ-4 (SAE 15W-40 recommended for most operating temperatures) Engine Oil Capacity: Approximately 38 liters (10.0 US gal) 🔧 Transmission Standard Transmission Type: Komatsu Heavy-Duty Planetary Powershift Transmission Number Of Gears: Typically 6 forward and 1 reverse (or 5F/1R depending on configuration) Features Transmission Control: Electronically controlled for optimized shift points and performance. Torque Converter: Lock-up type for improved fuel efficiency at higher speeds. Fluid Specifications Transmission Fluid Type: Komatsu Genuine Transmission Oil (KTO) or equivalent (e.g., Allison TES 295 compatible) Transmission Fluid Capacity: Approximately 21 liters (5.5 US gal) 📐 Dimensions Exterior Overall Length: Approximately 9.7 meters (31 ft 10 in) Overall Width: Approximately 3.5 meters (11 ft 6 in) Overall Height To Cab: Approximately 3.6 meters (11 ft 10 in) Ground Clearance: Approximately 0.5 meters (1 ft 8 in) Cargo Body Capacity Heaped: Approximately 19.0 cubic meters (24.9 cubic yards) Body Capacity Struck: Approximately 14.8 cubic meters (19.4 cubic yards) Weights Operating Weight: Approximately 23,000 - 24,000 kg (50,700 - 52,900 lbs) Gross Vehicle Weight Rating: Approximately 55,000 - 56,000 kg (121,250 - 123,450 lbs) 🛡️ Safety Features Ratings Operator Protection: ROPS (Roll-Over Protective Structure) and FOPS (Falling Object Protective Structure) compliant cab as standard. Active Features Braking System: Full hydraulic, dual-circuit, wet multi-disc brakes on all wheels with enclosed parking brake. Retarder: Integrated brake/retarder system for downhill speed control. Traction Control: Automatic Traction Control (ATC) system that automatically engages cross-axle diff locks when wheel slippage is detected. Passive Features Lighting: Comprehensive exterior lighting package including work lights and road lights. Visibility: Large cab glass, rear-view mirrors, optional backup camera system. 💡 Technology Features Infotainment Infotainment System: N/A (Vehicle is designed for heavy-duty industrial use, not consumer infotainment. Focus is on operational data). Driver Assistance Telematics And Monitoring: Equipped with KOMTRAX™ (Komatsu Tracking System) for remote monitoring of machine health, location, fuel consumption, and operational...