Comprehensive factory service information provides detailed procedures for maintenance, troubleshooting, and repair, ensuring correct and efficient servicing.
Key Features
Coverage:
Complete tear-down and rebuild procedures with step-by-step instructions, specifications, and diagrams.
Accuracy:
Factory original data ensures precise tolerances and torque specs.
📋 Manual Details
Coverage
Coverage Area:
All major systems and components of the Komatsu WA320-3 wheel loader.
Page Count:
Approximately 700 pages (varies by edition).
Manual Type:
Workshop Service Manual
Language:
English
Format:
PDF (portable document format)
Delivery Method:
Instant download upon purchase.
📖 Manual Coverage
Systems Covered
Engine:
Complete engine disassembly, inspection, and reassembly procedures.
Transmission:
Power train removal, overhaul, and adjustment procedures.
Hydraulics:
Detailed hydraulic system diagrams and service procedures for cylinders, pumps, and valves.
Electrical:
Wiring diagrams, component testing, and troubleshooting guides.
Undercarriage:
Track and undercarriage maintenance procedures (if applicable).
Cab & Controls:
Operator cab components, controls, and air conditioning service.
Procedures Included
Maintenance:
Scheduled maintenance procedures with specifications and intervals.
Disassembly & Assembly:
Step-by-step instructions with torque specs and sequence.
Troubleshooting:
Diagnostic charts and symptom-based troubleshooting.
Testing & Adjustment:
Procedures for checking system pressures, clearances, and calibrations.
Technical Depth
Detail Level:
Comprehensive factory-level detail intended for professional technicians.
Illustrations:
Numerous diagrams, schematics, and exploded views.
Parts Information
Part Numbers:
Reference part numbers throughout for ordering replacements.
📊 Manual Specifications
File Format
File Type:
PDF (Portable Document Format)
Compatibility:
All modern devices with a PDF reader (PC, Mac, tablet, phone).
Requirements:
No special software required.
Searchability:
Searchable text allows quick lookup of keywords and sections.
Physical Media
Print Quality:
High-resolution digital reproduction of original factory manual.
Binding Type:
Digital (no physical binding).
Paper Type:
N/A - digital download
⚙️ Engine Specifications
Primary Engine
Engine Model:
Komatsu S6D102-1 (diesel)
Performance:
Gross power: 150 kW (201 hp) at 2200 rpm
Fuel System:
Direct injection, mechanical governor
🔧 Transmission
Standard Transmission
Type:
Powershift transmission with 4 forward and 4 reverse gears.
Features:
Modulated shift for smooth engagement and durability.
📐 Dimensions
Exterior
Wheelbase:
2,800 mm
Length:
7,190 mm (with bucket)
Weights
Curb Weight:
Approximately 16,500 kg
🛡️ Safety Features
Ratings
Crash Test Rating:
N/A - not applicable for wheel loader
Active Features
Braking System:
Oil-immersed multi-disc brakes
Steering:
Hydrostatic power steering
Passive Features
Operator Cab:
ROPS/FOPS certified cab for roll-over and falling object protection.
Seat Belt:
Standard seat belt
💡 Technology Features
Infotainment
Audio System:
N/A - not typically fitted to wheel loaders
Driver Assistance
Monitoring System:
Komatsu monitoring system providing warning indicators for key functions.
🔧 Maintenance
Service Intervals
Engine Oil:
Every 250 hours or annually, whichever comes first.
Hydraulic Oil:
Every 1000 hours.
Fluid Specifications
Engine Oil:
API CH-4 or higher (depending on ambient temperature)
Hydraulic Oil:
ISO VG 46 or equivalent
Known Issues
Common Wear Items:
Bucket teeth, cutting edge, tires, and hydraulic hoses.
📚 Vehicle History
Brand Heritage
Manufacturer:
Komatsu Ltd., Japan
Model Evolution:
The WA320-3 is part of the Avance series, succeeding the WA320-2 and later succeeded by WA320-5.
Production Location:
Manufactured at Komatsu plants in Japan.
🏆 Awards & Recognition
Recognition
Industry Recognition:
The Avance series received positive reviews for its performance and reliability.
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