Shop-Grade Manual for Komatsu WA400-1 Wheel Loaders
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Models Covered & Key Technical Specifications
WA400-1, WA400 / Komatsu Limited
- Komatsu WA400-1 - Standard (1990-1995)
- Komatsu WA400-1 - Pro (1996-1999)
- Komatsu WA400 - Premium (2000-2005)
Serial no: WA400-1 - 10001 and up
Professional Workshop Service Manual & Technical Specifications
Komatsu WA400-1 Wheel Loader Complete Service Shop Manual
Ensure your heavy equipment remains in peak operating condition with this professional-grade Service Shop Manual. This comprehensive technical guide is specifically designed for the Komatsu WA400-1 Wheel Loader, providing mechanics, owners, and fleet managers with the exact specifications and procedures required for maintenance, troubleshooting, and full-scale overhauls.
Covered Models and Serial Numbers
- WA400-1 Wheel Loader (1990)
- Serial Number: 10001 and up
- Engine: Features detailed references for the SA6D110-1 engine
Professional Technical Content
This manual is organized into logical sections to help you find the information you need quickly, whether you are performing routine maintenance or complex repairs on the job site or in the shop.
01 General Information Fundamental data, technical specifications, and maintenance standards to ensure your machine meets factory requirements.
10 Engine System Comprehensive coverage of the SA6D110-1 engine integration, including structure, function, and testing procedures to maximize power output and fuel efficiency.
20 Power Train In-depth instructions for the transmission, torque converter, and axles. Includes disassembly and assembly guides to handle critical driveline repairs.
40 Steering System Detailed breakdowns of hydraulic steering components to ensure precise maneuverability and operator safety.
50 Brake and Air System Step-by-step procedures for the braking system and pneumatic circuits, essential for maintaining reliable stopping power.
60 Work Equipment System Focused on the loader's heavy-duty performance, covering the lift arms, bucket linkage, and specialized hydraulic controls.
80 Electric and Electronic System Complete wiring logic and electrical troubleshooting to resolve issues with starters, alternators, and monitoring systems.
90 Specialized Components Technical data for the cab, air conditioning system, accumulators, and advanced hydraulic circuits.
Why This Manual is Essential for Your Shop
- Mobile-Friendly Design: The structured layout and clear headings make it easy to read on smartphones and tablets while working directly on the machine.
- Manufacturer Accuracy: Based on original technical data (Manual SEBM04240106) to ensure every bolt torque and pressure setting is correct.
- Cost Efficiency: Avoid expensive dealership labor costs by performing your own repairs and preventative maintenance.
- Lifetime Access: Your purchase is backed by a lifetime download guarantee, ensuring you always have the manual when you need it.
Invest in the longevity of your Komatsu equipment. This manual provides the high-level technical value needed to reduce downtime and keep your WA400-1 productive in the field.
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