Komatsu WA470-5 and WA480-5 Loader Service Manual
Technical manual for Komatsu WA470-5 and WA480-5 loaders, covering general, structure, testing, disassembly, and others. Includes 1204 pages of vital information. Publication SEBM024412.
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Komatsu Models Covered & Key Technical Specifications
Models: Komatsu WA470-5, Komatsu WA480-5
Sub-models / Variants: Standard
Build Years: 2005
Serial Numbers: WA470-5 70001 and up, WA480-5 80001 and up
Technical Data:
- Engine: SAA6D125E-3, 6-cylinder, 4-cycle, turbocharged, aftercooled
- Piston displacement: 11.04 liters (11,040 cc)
- Bucket capacity (piled): 4.2 cubic meters (WA470-5), 4.6 cubic meters (WA480-5)
- Rated load: 65.9 kN (6,720 kg) for WA470-5, 76.7 kN (7,820 kg) for WA480-5
- Drive type: Front and rear-wheel drive
- Transmission type: Multi-shaft power shift, hydraulic modulation, multiple disc
- Torque converter type: 3-element, 1-stage, 1-phase (or 2-phase with lockup clutch)
- Braking system: 4-wheel independent system, wet-type disc brake
Komatsu Manual Features & Content Preview
Komatsu WA470-5 and WA480-5 Loader Technical Overview
- Covers 2005 Komatsu WA470-5 and WA480-5 wheel loaders, including serial range 70001 and up for WA470-5 and 80001 and up for WA480-5
- Official Komatsu shop manual publication number SEBM024412, dated June 2005
- Contains 56 detailed system schematic diagrams, 12 major component assembly views, and 14 standardized tightening torque tables
- File downloads to your account within seconds of checkout
- Your order stays downloadable from your account for life
- Indexed PDF search covers every chapter and appendix
- Full-text search finds any part number in seconds
- Suitable for printing individual sections for shop-floor use
- This 2005 edition provides the definitive assembly, structure, and maintenance reference for the SAA6D125E-3 engine configuration used in the WA470-5 and WA480-5 series
Component and System Documentation
The 1,204-page manual is divided into major system groups including structural and functional descriptions, testing and adjustment procedures, and disassembly and assembly guidelines. Key chapters detail the radiator and cooling system, the power train assembly including torque converters and transmission configurations, axle structures, and steering and hydraulic controls.
Additional sections address the hydraulic control valves, including standard and lock-up clutch variants, as well as the work equipment linkages. The contents transition from broad assembly drawings and general operating precautions to specific maintenance standards and diagnostic information for the differential and transmission circuits.
Technical Specification Highlights
The manual documents engine performance values such as flywheel horsepower, ranging from 181.1 kW to 202.4 kW depending on mode, and maximum torque specifications reaching 1,294 Nm for the WA480-5. Standardized torque tables for metric bolts, flared nuts, and split flange bolts are provided for structural integrity. Torque converter stall ratios are documented at 2.39 for the standard unit and 2.16 for the lock-up clutch variant.
Coolant system capacity for both the WA470-5 and WA480-5 is 50 liters. The 1st-4th clutch separator plate thickness is specified at 1.7 mm. Front axle oil filler level capacity is documented at 52 liters for the WA470-5. This official 1,204-page Komatsu OEM shop manual for the 2005 WA470-5 and WA480-5 wheel loaders provides precise structural, maintenance, and testing specifications for the specified serial number ranges.
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