🏷️ Basic Information Identification Make: Komatsu Model: HD785-7 Vehicle Type: Heavy Duty Mining Dump Truck Serial Number Range: 7001 and up 👋 Introduction Market Position Market Segment: Large Mining and Construction Haul Trucks Competitive Analysis Key Competitors: Caterpillar 777, Volvo A60H, Hitachi EH750, Liebherr T 264 Key Features Value Proposition: Provides essential factory-authorized procedures and specifications for maintaining and repairing the HD785-7, ensuring optimal performance, longevity, and safety. 📋 Manual Details Identification Manual Title: Komatsu HD785-7 Factory Service Repair Manual Format Format: Downloadable PDF Language Language: English Type Manual Type: Factory Service Repair Manual 📖 Manual Coverage Systems Systems Covered: Engine, Powertrain, Hydraulics, Electrical System, Chassis, Steering, Braking, Cooling, Fuel System, Lubrication System, Drivetrain, Operator's Cab, Body and Frame, Pneumatic System, Air Conditioning Procedures Procedures Included: Routine Maintenance, Troubleshooting, Diagnostics, Major Component Overhaul, Repair Procedures, Component Replacement, Assembly and Disassembly, Electrical Schematics, Hydraulic Schematics, Technical Specifications, Adjustments, Torque Specifications, Wear Limits Depth Technical Depth: Comprehensive, from basic inspections and fluid changes to complete engine and transmission rebuilds, advanced electrical troubleshooting, and hydraulic system diagnostics. 📊 Manual Specifications File Characteristics File Format: PDF (Portable Document Format) Searchability: Text-searchable for efficient information retrieval. Print Quality Print Quality: High-resolution for clear diagrams, schematics, and text. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Model: Komatsu SAA12V140E-3 (or similar variant, check manual for specific engine code) Performance Gross Horsepower: Approx. 1044 HP (778 kW) @ 1800 RPM (Varies by specific engine configuration) Net Horsepower: Approx. 1000 HP (746 kW) @ 1800 RPM (Varies by specific engine configuration) Peak Torque: Approx. 3600 lb-ft (4880 Nm) @ 1400 RPM (Varies by specific engine configuration) Fuel System Fuel System Type: Common Rail Electronic Fuel Injection (HPCR) Engine Details Displacement: Approx. 25.5 L (1556 cu in) Engine Configuration: V-12, Turbocharged and Aftercooled, Diesel Emission Standards: Meets relevant Tier standards depending on market of sale. 🔧 Transmission Standard Transmission Type: Komatsu Heavy-Duty Automatic Powershift Transmission Model: Komatsu DT700 (or similar) Number Of Speeds: 7 Forward, 1 Reverse Features Transmission Control: Electronically Controlled Automatic Powershift with Payload Meter integration. Fluid Specifications Transmission Fluid Type: Komatsu Genuine Transmission Oil (or approved equivalent conforming to Komatsu spec) Transmission Fluid Capacity: Refer to manual for exact capacity (typically over 50 Liters) 📐 Dimensions Exterior Overall Length: Approx. 9,630 mm (31 ft 7 in) Overall Width: Approx. 4,160 mm (13 ft 8 in) Overall Height: Approx. 4,465 mm (14 ft 8 in) Cargo Body Capacity Heaped: Approx. 47.2 m³ (61.7 cu yd) Body Capacity Struck: Approx. 36.0 m³ (47.1 cu yd) Weights Operating Weight: Approx. 73,160 kg (161,300 lbs) Payload Capacity: Approx. 76,000 kg (83.8 tons) Front Axle Weight Loaded: Refer to manual for specific distribution Rear Axle Weight Loaded: Refer to manual for specific distribution 🛡️ Safety Features Ratings Safety Standards: Designed to meet or exceed industry safety standards for heavy mining equipment. Active Features Braking System: Komatsu Advanced Electronically Controlled Wet Multi-Disc Brakes (Service, Parking, Secondary) Retardation System: Integrated Retarder System (IRS) for downhill speed control. Suspension: Komatsu Hydropneumatic Suspension (front and rear) for improved stability and operator comfort. Passive Features Cab Design: ROPS (Roll-Over Protective Structure) and FOPS (Falling Object Protective Structure) compliant operator cab. Visibility: Large glazed areas, optional rearview cameras for enhanced operator visibility. Fire Suppression: Provisions for optional automatic fire suppression systems. 💡 Technology Features Infotainment Cab Features: Ergonomically designed operator cab with digital displays, climate control, and adjustable controls. Focus is on functionality and operator productivity. Driver Assistance Payload Meter: Integrated Komatsu Payload Meter (PLM) system to optimize loading and prevent overloading, contributing to fuel efficiency and component longevity. Vehicle Monitoring: Advanced monitoring systems for engine parameters, transmission status, hydraulic pressures, and braking systems, often accessible via onboard diagnostics. Connectivity Telematics: Provisions for Komatsu KOMTRAX® telematics system (depending on original specification) for remote machine monitoring, location tracking, fuel consumption, and maintenance alerts. 🔧 Maintenance Service Intervals Daily Inspections: Fluid levels (engine oil, coolant, hydraulic oil, transmission oil, brake oil), tire condition, visual checks for leaks and damage, operation of controls and safety systems. 250 Hour Service: Engine oil and filter change, fuel filter replacement, air filter inspection, hydraulic filter inspection, transmission oil and filter check, inspection of belts and hoses. 500 Hour Service: Includes 250-hour items plus engine valve lash adjustment, hydraulic system pressure checks, brake system inspection, cooling system flush and refill (as needed), driveline component checks. 1000 Hour Service: Includes 500-hour items plus transmission oil and filter replacement, differential oil change, final drive oil change, torque converter oil change. Fluid Specifications Engine Oil Type: API CI-4 or higher, SAE 15W-40 (refer to manual for precise Komatsu specification) Engine Oil Capacity: Approx. 48 L (12.7 US gal) Coolant Type: Komatsu Super Long Life Coolant (SLLC) or equivalent (50% ethylene glycol, 50% deionized water) Hydraulic...
Caterpillar 777, Volvo A60H, Hitachi EH750, Liebherr T 264
Key Features
Value Proposition:
Provides essential factory-authorized procedures and specifications for maintaining and repairing the HD785-7, ensuring optimal performance, longevity, and safety.
📋 Manual Details
Identification
Manual Title:
Komatsu HD785-7 Factory Service Repair Manual
Format
Format:
Downloadable PDF
Language
Language:
English
Type
Manual Type:
Factory Service Repair Manual
📖 Manual Coverage
Systems
Systems Covered:
Engine, Powertrain, Hydraulics, Electrical System, Chassis, Steering, Braking, Cooling, Fuel System, Lubrication System, Drivetrain, Operator's Cab, Body and Frame, Pneumatic System, Air Conditioning
Comprehensive, from basic inspections and fluid changes to complete engine and transmission rebuilds, advanced electrical troubleshooting, and hydraulic system diagnostics.
📊 Manual Specifications
File Characteristics
File Format:
PDF (Portable Document Format)
Searchability:
Text-searchable for efficient information retrieval.
Print Quality
Print Quality:
High-resolution for clear diagrams, schematics, and text.
Binding Type
Binding Type:
N/A (Digital Download)
Paper Type
Paper Type:
N/A (Digital Download)
⚙️ Engine Specifications
Primary Engine
Engine Model:
Komatsu SAA12V140E-3 (or similar variant, check manual for specific engine code)
Performance
Gross Horsepower:
Approx. 1044 HP (778 kW) @ 1800 RPM (Varies by specific engine configuration)
Net Horsepower:
Approx. 1000 HP (746 kW) @ 1800 RPM (Varies by specific engine configuration)
Peak Torque:
Approx. 3600 lb-ft (4880 Nm) @ 1400 RPM (Varies by specific engine configuration)
Fuel System
Fuel System Type:
Common Rail Electronic Fuel Injection (HPCR)
Engine Details
Displacement:
Approx. 25.5 L (1556 cu in)
Engine Configuration:
V-12, Turbocharged and Aftercooled, Diesel
Emission Standards:
Meets relevant Tier standards depending on market of sale.
🔧 Transmission
Standard
Transmission Type:
Komatsu Heavy-Duty Automatic Powershift
Transmission Model:
Komatsu DT700 (or similar)
Number Of Speeds:
7 Forward, 1 Reverse
Features
Transmission Control:
Electronically Controlled Automatic Powershift with Payload Meter integration.
Large glazed areas, optional rearview cameras for enhanced operator visibility.
Fire Suppression:
Provisions for optional automatic fire suppression systems.
💡 Technology Features
Infotainment
Cab Features:
Ergonomically designed operator cab with digital displays, climate control, and adjustable controls. Focus is on functionality and operator productivity.
Driver Assistance
Payload Meter:
Integrated Komatsu Payload Meter (PLM) system to optimize loading and prevent overloading, contributing to fuel efficiency and component longevity.
Vehicle Monitoring:
Advanced monitoring systems for engine parameters, transmission status, hydraulic pressures, and braking systems, often accessible via onboard diagnostics.
Connectivity
Telematics:
Provisions for Komatsu KOMTRAX® telematics system (depending on original specification) for remote machine monitoring, location tracking, fuel consumption, and maintenance alerts.
🔧 Maintenance
Service Intervals
Daily Inspections:
Fluid levels (engine oil, coolant, hydraulic oil, transmission oil, brake oil), tire condition, visual checks for leaks and damage, operation of controls and safety systems.
250 Hour Service:
Engine oil and filter change, fuel filter replacement, air filter inspection, hydraulic filter inspection, transmission oil and filter check, inspection of belts and hoses.
500 Hour Service:
Includes 250-hour items plus engine valve lash adjustment, hydraulic system pressure checks, brake system inspection, cooling system flush and refill (as needed), driveline component checks.
1000 Hour Service:
Includes 500-hour items plus transmission oil and filter replacement, differential oil change, final drive oil change, torque converter oil change.
Fluid Specifications
Engine Oil Type:
API CI-4 or higher, SAE 15W-40 (refer to manual for precise Komatsu specification)
Engine Oil Capacity:
Approx. 48 L (12.7 US gal)
Coolant Type:
Komatsu Super Long Life Coolant (SLLC) or equivalent (50% ethylene glycol, 50% deionized water)
Hydraulic Oil Type:
Komatsu Genuine Hydraulic Transmission Oil (HTO) or equivalent (e.g., ISO VG 46 or VG 68 depending on ambient temperature and component)
Brake Oil Type:
Komatsu Genuine Hydraulic Transmission Oil (HTO) or equivalent
Transmission shifting issues, hydraulic system leaks or sluggishness, engine overheating, electrical system faults (e.g., sensor failures), wear on bucket and body liners.
Preventative Maintenance
Importance Of Pm:
Crucial for preventing catastrophic failures and maximizing the lifespan of expensive components like the engine, transmission, and hydraulics.
📚 Vehicle History
Brand Heritage
Manufacturer Origin:
Japan
Brand Focus:
Komatsu is a leading global manufacturer of construction and mining equipment, known for its robust and reliable heavy machinery.
Model Evolution
Series Context:
The HD785-7 is part of Komatsu's extensive line of rigid-frame off-highway haul trucks, designed for high productivity in demanding mining and quarrying applications.
Predecessors Successors:
Represents an evolution of Komatsu's large haul truck technology, preceding and likely succeeded by newer generations with advanced features and emission controls.
Production
Production Period:
The HD785-7 was a key model produced during the mid-to-late 2000s and into the 2010s. Specific production dates vary by region.
🏆 Awards & Recognition
Recognitions
Industry Recognition:
Komatsu mining equipment is consistently recognized for its durability, reliability, and cost-effectiveness in demanding environments.